Piranha & QABrowser User`s Manual - English - 5.5C
Contents
1. eee eeeecerrecerreneerenaa 24 3 1 TP FOUBISSMOOUNG segia Ment tected a ia eae eteaed 24 Tais gt eater oak E a RE ORE nae vasa QU EA DR RARA ARS RR E RR 27 Note For a full description of the Piranha and the QABrowser see the Piranha amp QABrowser Reference Manual The Reference Manual can be found on the Product CD or be downloaded from RTI s website www rti se The manual is available both as PDF and Browser format The Browser HTML format is recommended for easy searching Piranha amp QABrowser User s Manual 2014 06 5 5C 1 Description of the Piranha Indicators and Connectors so 1 Description of the Piranha 1 1 Indicators and Connectors The Piranha comes in a lot of different models the external design is basically the same for all models except for the External Probe port Edge External Probe port on some Piranha models Detector area The rectangular marking indicates where the active detector area is located The detector surface is located 10 mm below the surface see section Specifications Piranha in the Reference Manual Minimum X ray field is 3x21 mm The recommended field size is shown as red corners 20x40 mm Power switch on edge Turns the Piranha on and off Indicators for charging status and Bluetooth USB Palm charger port output not used The USB port is used when using RTI Updater to update the internal firmware It can also be used when the Piranha is use2. How do l reset the Handheld computer There is a small reset hole on the back of the Handheld computer use the stylus pointer to reset 2014 06 5 5C Piranha amp QABrowser User s Manual 3 Problems and Solutions Troubleshooting Please see the Piranha Reference Manual for more Troubleshooting tips C Contact your local representative or RTI Electronics AB The more information you supply will help us to get a quick solution to your problem Examples of useful information is screen dump pictures exact error message texts log files etc You may also use the auto report function described in the section How To Report a Problem in the Piranha Reference Manual Piranha amp QABrowser User s Manual 2014 06 5 5C Index 27 Detector surface 3 n d ex Dose Probe 3 Dose Sensitivity 19 Note E Page references in this Index points to the first o page of the section it is mentioned not the Electrometer waveform 12 Equivalent thickness exact page Compression paddle 12 Error 24 A Exclamation indicator 24 Active messages 22 External probe connector 3 Additional filtration mammo 16 After exposure update mode 17 F AMX 4 15 FCC 7 Analyse waveform 22 Filtration Additional mammo 16 Auto prompt 22 Free run update mode 17 Auto power off 24 Autoscaling 24 H B Handheld Reset 24 Heel effect 6 Battery Holder charging 23 Piranha 6 indicator 23 HotSync 24 level 4 23 HVL running time 4 Stand 6 status 4
3. SDD 750 SDD Norm 500 Sensitivity Dose TF Sensitivity kV Delay Window Normalize to distance Internal detector Dose TF Sensitivity v Low High Delay v 5ms Window Infinite M Normalize to distance S N CB2 07030047 If Normalize to distance is checked another section is shown See description below kV mm mm This is used to set the dose and TF sensitivity for the Internal detector The sensitivity can be set to Low High and Very High Default value is set according to type of measurement This is used to set the kV sensitivity for the Internal detector The sensitivity can be set to Low and High Default value is set according to type of measurement selected The delay time defines how long time the Piranha shall wait before starting to measure kVp after that radiation has been detected The delay can be set to Off 5 ms 25 ms 100 ms 500 ms 1 s 2s or Other 0 9999 ms The default value is set according to selected type of measurement This gives the possibility to define a fixed time that Piranha measures kVp after that the delay time has expired The window can be set to Infinite 5 ms 10 ms 25 ms 100 ms 200 ms or Other 0 9999 ms Default value is always Infinite If Normalize to distance is checked you have the option to normalize the dose reading to any given distance Here you can enter your Source to Detector Distance SDD and a normalizing
4. e The end time is the last time the signal goes below TLxSppaw See example below S 100 Rel signal reat 100 90 80 70 60 50 40 30 20 10 tiereo 2 0 S tirrso 4 29 S Lari 1 29 S Time s This setting defines when Piranha shall send measured values to the QABrowser Four different alternatives are available e After exp the QABrowser receives a new value when the exposure terminates e Continuous the Piranha is continuously sending data as long as radiation is detected Displays in the QABrowser are updated about every four seconds Typically used for Fluoroscopy e Timed the user sets a measurement time The user then starts the measurement and the Piranha will measure all radiation received during the measurement time without any trig levels When the time has passed a reading will be presented e Free run the Piranha will continuously measure the Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Real time Display and Waveforms radiation without any trig levels Default value is set according to selected type of measurement and this parameter normally never needs to be manually changed unless really low level measurements are to be accomplished See the sectionsMeasurement Type Settings and Update Modes in the Reference Manual for more information Waveform The QABrowser is able to show a total of 640 samples rec tim
5. your system including attached probes For instance must your MAS probe be attached for the mAs parameter to be shown Fi Rad Dose RTO 3 If you had chosen Dose earlier and you have a Select Detector Piranha model that supports external dose measurements you must select the detector you want to use If you want to measure dose with the external probe tap External otherwise tap Internal SZN 1977 Extern 4 The Real Time Display RTD is now shown and you are ready to measure see figure below The Piranha is set to the most suitable settings for the selected type of measurement in this case radiography The selected kV range is 45 125 and the radiation quality is W 3mm Al reference radiation quality Depending on type of measurement you may have several kV ranges and beam qualities to choose from For radiography you have three different kV ranges 35 75 45 125 and 90 155 to select between You will have four displays on this screen if you do not have use a mAs probe and six if you selected to measure mAs The manual for the mAs probe explains how to connect it Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Real time Display and Waveforms A Rod All RTD TT Here measurement 0 000 GY indicators are shown 0 000 FE 0 000 mGy 0 000 moys Change kV 0 000 Eis range by 0 000 Ei Change Radiation Quality tapping here Ri 4 45 125 Ww 3mm Al S by tappin
6. 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms parameter displays complementary values may be shown in the figure above exposure time and total filtration Which complementary values that are shown depends on the selected parameter Up to three complementary values can be shown If any of the displayed values is not possible to compensate or cannot be measured with full accuracy the symbol is displayed at the top of screen If the symbol is displayed you can tap it with the pen to display more information 2 2 2 Waveforms Acquiring and Viewing To view waveforms after the exposure ie 1 Tap Wave or press the corresponding T 74m button The waveform screen appears and waveforms are displayed The kV waveform 100 8 0E pay Eme taxes a few seconds to calculate before it is moy displayed 3 13 mAs 91 33 Ri 4 45 125 Timm Al 2 od Wes Pe 2 The waveforms are displayed and you can use the pen to move the cursor Corresponding cursor values are shown under the waveforms 3 Tap kVp Dose or mA once to hide show the corresponding waveform 4 You can now make new exposures without returning to the real time display The old waveforms are then erased and the new ones are shown If the waveform recording time is much longer than the exposure time you may only get a part of the waveform since the Piranha is still capturing the wa
7. Launch the QABrowser by tapping on the QABrowser icon Please note that All needs to be selected at the top of the screen for the QABrowser icon to be visible 3 The handheld will now search for available Bluetooth devices and show them to you 4 Select your meter and press OK 5 If prompted enter the passkey for the meter which is 0000 If you experience any problems connecting through Bluetooth please see the troubleshooting chapter in the reference manual or visit the RTI website for more information 2 2 Real time Display and Waveforms 2014 06 5 5C Piranha amp QABrowser User s Manual 8 Description of the QABrowser Real time Display and Waveforms 2 2 1 Using the Real Time Display EH o 1 A list with different type of measurements is shown Select Type of Measurement Note that the number of items in the list is depending on the configuration of your Piranha i system Your list may have other choices than the uorosco A T Pulsed fluor osco list shown here To view items not visible tap the Cine Pulsed exposure arrow or use the scroll button on the handheld Mammography computer For this example select Radiography ED o 4 2 A list with all different parameters are shown You can select to measure a single parameter or all at the same time In this example select All Tube voltage Note that the parameters shown here are the ones paame that are available with the current configuration of
8. is activated an N symbol will show on the RTD screen 2 3 QABrowser Setup The Piranha Setup is used to define different parameters that control the function of the QABrowser and Piranha Open the QABrowser main menu and select Setup All settings are described in the reference manual Detector Information System Info System Test Select 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser QABrowser Setup 2 3 1 Units Setup Units Setup is used to change the preferred unit of measure for dose and dose rate as well as units for temperature and air pressure These are then the default units for all new tests WA Tap the unit you want to change and tap the desired unit Dose Gy in the list that pops up Temperature e C Pre cnra EE When measuring in the RTD you can HF temporarily change a unit by tapping the unit text with the stylus 2 3 2 Preferences Setup Gud o Sleep time defines how for how long time the handheld Sleep time w 15 min computer stays on when it is not used and charging is BY Stay on in Cradle off EY Autoprompt wis O Lock unit prefixes Stay on in Cradle defines that it should stay on as soon Mf Analyse waveform as it is connected to and powered from the Piranha Indicate trig Sound amp Visually fictivemessages von Auto prompt is for the built in applications in multi parameter mode It defines how long time the result from one exposure is show
9. surrounding square indicates the relative position of the three first as they may be shown simultaneously This symbol indicates that the function Beam Correction is active The set beam correction factor can be changed under Settings 12 e N This symbol indicates that the function normalize to distance is active The set distances can be changed under Settings 12 e For mammography This symbol indicates that a compression paddle is used in the beam The doses measured by the Internal detector detector can then be compensated to simulate the scatter effect that an ion chamber shows when a compression paddle is positioned directly above the detector Es equivalent thickness and scatter factor can be changed under Settings 12 cm Waveform indication This symbol indicates that the waveform was set or determined as DC HF Tube voltage readings are affected by this The waveform functionality can be changed under Settings 12 6 Waveform indication This symbol indicates that the waveform was set or determined as single phase Tube voltage readings are affected by this The waveform functionality can be changed under Settings 12 e AL Waveform indication This symbol indicates that the waveform was set or determined as 3 Phase 6 Pulse Tube voltage readings are affected by this The waveform functionality can be changed under Settings 12 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Indica
10. 1 2 s 250 Sa s O Start after delay Post Delay The post delay time defines how long time the Piranha shall wait and look for more after detecting what can be considered to be the end of the exposure Default value is 250 ms The post delay is necessary when measuring on units with some kind of pre pulse or for pulsed exposures The post delay can be set to Off 25 ms 250 ms 1 s or Other 0 9999 ms The default value is set according to selected type of 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms Trig source Trig level time Update measurement see section Measurement Type Settings in the Reference Manual This setting makes it possible to define the trig source for the electrometer module Available settings are e Individually each detector starts to measure individually when it detects a signal e nternal detector the measurement of all parameters all modules start when the Internal detector starts to measure Default value is always Internal detector when it is used This is the recommended trig source Here you can set the level used for irradiation time measurements Trig level time TL is normally set to 50 of the peak waveform SPEAK but can be set between 10 and 90 The irradiation time is then calculated as the end time minus the start time e The start time is the first time the signal goes above TLxSppaw
11. 120 kV or any other available kV setting 7 Make an exposure A message will be shown If the detector is incorrectly aligned the QABrowser will tell you to re position the detector For a small misalignment a correction factor is applied and you are allowed to continue without re positioning the detector This message disappears automatically if the position is OK If the displayed number is between 0 950 and 1 050 the position is acceptable and a correction factor will be applied to correct the position to 1 000 The correction factor is valid until you perform this check again or until you quit the QABrowser It is recommended to perform the position check after any repositioning of the detector or after change of target filter combination when measuring on a mammography unit You are now ready to make the first exposure Set the generator to 80 kV Make sure that the correct kV range is used in this case R1 4 45 125 When you make the first exposure the Piranha will evaluate what kind of waveform it is DC HF 3 phase 12p 3 phase 6p or 1 phase and the total filtration This is done for all measurement types but mammography Default values are DC HF and 3 0 mm Al Back Reset Piove Ap pl Piranha amp QABrowser User s Manual Fala 45 125 Ymr Al m 8 Make an exposure Every time the Piranha recognizes an exposure the RTI logo is superimposed on screen for a short while 2014 06 5 5C 2 Description of the
12. 23 warning 23 Battery charging indicator 4 Indicate trig 22 Beam Correction 23 Indicator Beam correction factor 17 Battery charging 3 Beam quality 8 Bluetooth 3 Blank screen 24 Status 3 Bluetooth 7 24 Indicators Indicator 3 Battery level 23 C Beam Correction 23 Compression paddle 23 Camera thread 3 Exclamation indicator 24 CAS 6 6 Measurement 8 CAS 7 6 Normalize 23 Change RTD 8 Unit of measure 8 Warning 24 Charging Batteries 23 Waveform indicator 23 Checking battery status 23 Internal detector settings 12 19 Compliances 7 Compression paddle 16 K Equivalent thickness 12 kV Sensitivity 19 Compression paddle indicator 23 kVp waveform 12 Conditions 12 15 Connector L External probe 3 Palm charging 3 USB 3 Connectors 3 _ M _ Continuous update mode 17 Current waveform 12 Module 8 D N Lock unit prefixes 22 Low battery warning 23 Default Unit 24 Normalization distance 12 Delay 19 21 Normalize indicator 23 Start efter 17 p Waveform 17 Demo 7 Piranha 6 Detector 8 Cable 6 Detector settings 21 Holder 6 2014 06 5 5C Piranha amp QABrowser User s Manual 23 index Piranha position check 8 Piranha settings 12 17 Position check of Piranha 8 Post delay 17 Power Management 23 Power supply 23 Power switch 3 PPV 8 PPV waveform 12 Practical Peak Voltage 8 Preferences 22 Prefixes Lock 22 Prefixes Unit 24 Problem report 24 Pulse rate 16 Q QABrowser Setup 21 R Radiation quality 8 Rea
13. Notes 29 Notes 2014 06 5 5C Piranha amp QABrowser User s Manual
14. Piranha QABrowser User s Manual English Version 5 5C RTI Electronics AB reserves all rights to make changes in the Piranha the QABrowser and the information in this document without prior notice RTI Electronics AB assumes no responsibility for any errors or consequential damages that may result from the use or misinterpretation of any information contained in this document Copyright 2006 2014 by RTI Electronics AB All rights reserved Content of this document may not be reproduced for any other purpose than supporting the use of the product without prior permission from RTI Electronics AB Contact Information World Wide RTI Electronics AB Fl jelbergsgatan 8 C SE 431 37 MOLNDAL Sweden Phone Int 46 31 7463600 Fax Int 46 31 270573 E mail Sales sales rti se Support support rti se Service service rti se Web site http www rti se Contact Information United States RTI Electronics Inc 33 Jacksonville Road Bldg 1 Towaco NJ 07082 USA Phone 800 222 7537 Toll free Int 1 973 439 0242 Fax Int 1 973 439 0248 E mail Sales sales rtielectronics com Support support rtielectronics com Service service rtielectronics com Web site http www rii se RTI article number 9629051 10 EE Contents Table of Contents 1 Description of the Piranh au2alsonacaasoissodlsouasda cos Palsids cos Poasscaasadladads 3 1 1 Indicators and Connectors 2 aiekakee ena eee eee ee 3 1 2 Se
15. QABrowser Real time Display and Waveforms jr The Piranha analyses the waveform and shows the result automatically after the first exposure If the result is incorrect the actual waveform type needs to l be set manually see topic Settings 12 for more Determined waveform information DC DC or HF A Rad AIN RTD The Piranha measures the total filtration for each oooi exposure for all measurement types except mammography It is shown automatically after the first exposure Estimated Total Filtr If you want the QABrowser to lock this value and not estimate it again for the following exposures tap Keep You can also enter the total filtration manually under the settings see topic Settings 12 for more information eA 78 f4 Cn Up to six values can be shown simultaneously Measured kVp dose and dose rate values are compensated depending on actual total filtration between 1 5 38 mm Al and waveform type Ri 4 45 125 on Al it The display looks different depending on the type of parameter you selected in step 3 and if you are using a mAs probe or not In the pictures below you can see how the screen looks if you do not measure mAs and if you select just Tube voltage ft Rod Tube RTD A Rod Al ae Exposure time 50 1 Est Tot Filtr 3 3 Fria 45 125 qe Al YR 1 4 45 125 W 3mm Al The single parameter displays are large to allow reading from distance In the single 2014 06 5
16. atus indicator quickly between colours and does not measure Your system is in Bootloader mode Please run RTI Updater to correct this My Piranha beeps twice quickly when starting The Piranha normally beeps once when starting If it beeps twice quickly when powering on run RTI Updater to correct this get a blank white screen when running the QABrowser Click the Back button leftmost to get out and then re enter the test again Bluetooth unable to reconnect using Retry Tap Exit and restart the Piranha and then re start the QABrowser again Bluetooth only shows Unknown device when trying to connect Depending on Palm model it may take a little while for the serial number to appear the Piranha will appear as Unknown device Normally it will show the serial number if you wait a while How do I change from Gray to R ntgen units You can set this for all tests pull down menu Setup Units see Units Setup 22 It is also possible to set mixed units for a test and save as Favourites All measurements settings QABrowser settings set values and selected units will be saved with the Favourite How do I stop the units from autoscaling its prefixes There is a preference setting for this pull down menu Setup Preferences see Preferences Setup 22 Can set the time before the Handheld powers off automatically Yes there is a preference setting for this pull down menu Setup Preferences see Preferences Setup 22
17. d together with a PC running the QA software Ocean Note that the USB connector cannot be used when connecting to a handheld computer The system is then powered from the PC via the USB cable The PC however have a limited USB power output so when fast charging is needed the power supply needs to be connected here This is also possible when using the Bluetooth link to communicate with the Palm or PC The port is marked USB 2014 06 5 5C Piranha amp QABrowser User s Manual af Description of the Piranha Indicators and Connectors The orange indicator for Charging of batteries is lit when charging is active Note that charging is possible even when the power switch is off The blue indicator for Bluetooth is lit when the Bluetooth interface is active and discoverable The multi coloured indicator for Status shows the status of the system e g battery level as described below Also works as Power indicator one of the colours will light when the Piranha is on Battery level The status indicator is used to show the battery level of the Piranha 1 Starting a system running on batteries the status indicates for 3 seconds Green if battery level over 25 4 h left Yellow if battery level between 10 and 25 112 4 h left Red if battery level below 10 lt 1 h left The idea is to get a quick indication when powering on the system if it will take me through today s work 2 When running on batteries the status ind
18. distance SDD Norm that you want the dose normalized to When this is activated a blue N will show in the top right corner of the RTD screen Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Real time Display and Waveforms 2 2 3 4 Settings Other Detectors ae MAS 2_ Here general measurement settings for other detectors Sensitivity w Low or probes are shown You can also see the detector s Theachald wheeceat Serial number Note that different detectors have different options Threshold Hormal MAS 2 SM 010 Sensitivity This is used to set the sensitivity for the electrometer module The sensitivity can be set to Low and High Default value is set according to selected type of measurement and used detector Threshold This is used to set the trig level It can be set to Low 72x Normal 2x 4x and 8x The default value is Normal The setting Low can be used if low signals are measured and a lower trig level is required However the risk for false triggering increases when Low is used To avoid false triggering in a noisy environment use one of the higher threshold levels Normalize to Note Only for dose detectors distance If Normalize to distance is checked you have the option to normalize the dose reading to any given distance Here you can enter your Source to Detector Distance SDD and a normalizing distance SDD Norm that you want the dose normalized to When this
19. e The sampling interval is normally 0 5 ms giving a total measurement window of 320 ms By increasing the sampling interval a sampling window up to 40 seconds or even more can however be selected This is very handy when longer exposure times are used and the waveforms need to be viewed See section Update Modes in the Reference Manual for more information The default value is set according to selected type of measurement Start after delay When this is selected the waveform recoding will start after the set delay This can be useful if you want to study a phenomenon that occurs after the normal waveform recording time When this is selected the electrometer waveform will not show simultaneously and you will get a warning that the irradiation time measurement is inaccurate The reason for this is that the Piranha needs the waveform from start to be able to accurately calculate the irradiation time This is a temporary setting and it will be turned off when you exit the RTD 2 2 3 3 Settings Internal detector Here general measurement settings for the Internal detector are shown You can find information about the different parameters below Internal detector Dose TF kV Sensitivity v Low High Delay v 5ms Window Infinite O Normalize to distance S N CB2 07030047 Ce ie 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms
20. en the motor is trying to move tap the Piranha s left long edge in the palm of your left hand until it comes free The electrometer does not give a reading Check 1 That the correct input connector is used and connected 2 That probe cables look healthy The electrometer gives numerous trig indications If you get the trig indicator play symbol when there is no signal 1 Press reset 2 If it comes over and over you may need to increase the trig level by raising the threshold see topic Settings 12 The electrometer or Piranha gives too low dose rate If you get to low dose rate readings or too short irradiation times for short exposures Piranha amp QABrowser User s Manual 2014 06 5 5C 3 Problems and Solutions 2 Troubleshooting 1 Check that you are measuring with a good geometry where the incoming radiation is perpendicular to the detector surface See Specifications Piranha for details The QABrowser does not show the Bluetooth Discovery Results screen Try the following 1 Exit the QABrowser 2 Do a hardware reset of your Tungsten using the reset hole on the back of the Palmtop 3 Restart the QABrowser Installation or upgrade of RTI Updater failed Make sure you are not having a restricted user account on Windows XP 2000 or newer You will need to have access to an administrative account to install the software see section Windows Restricted User Accounts for details My Piranha cycles its st
21. erial number for the detector that is connected to the external connector In this case it is a MAS 2 probe You can find information about the different parameters in Settings Other Detectors 21 Default values for the settings are depending on the selected type of measurement and detector Tap Back to return to the real time display Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Real time Display and Waveforms 2 2 3 1 Settings Conditions Here general conditions for the measurements are shown Different values can be shown depending on selected measured parameter Conditions TF and Waveform Eat Conditions These are parameters of the X ray generator which TotalFiltr v Set 3 0mmal Influence the measurements The Piranha can measure Waveform Determne these or you can set them yourself Total Filtr Shows actual total filtration value Estimate means that a new estimation will be performed at next exposure and the values will be displayed on screen Waveform Shows the actual waveform type Determine means that a new analyse of the waveform will be performed for the next exposure The result will be displayed on screen The waveform types supported are DC HF Single Phase 3 Phase 6 Pulse 3 Phase 12 Pulse AMX 4 Pulsed The first four can be automatically determined when Estimate is chosen The selected or set waveform is also shown with a sy
22. g here Back Reset Wave Appl Change unit by tapping the unit text Tap here to reset detectors Fora When you tap a unit a list to select unit from is 00 fe shown Tap the desired unit or tap Cancel to keep the present one R114 45 125 W 3mmAl Reset Wave The first thing to do before starting to measure is to verify that the Piranha is placed correctly in the X ray field A special function is available to do this Position the Piranha under the tube as described in the topic Setting Up the Piranha 61 The Position Check is usually not necessary for Radiography but often essential for the other modalities in order to get more accurate measurements To skip go to 8 Rad AIN RETO 0 000 kip kV Calibration 0 rms R1 3 35 75 kV O Fikes R114 45 125 kV jg PRA R1 5 90 155 k ia mm TF a mr HYL 3mm Al Back Reset Wave Appl 5 Tap the kV range selector and a list will appear as shown left Tap Check C to select the Piranha position check o 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms Position Check Make an exposure Sensitivity Position Check Make an exposure 0 998 OK Sensitivity Low 6 The Position Check screen is now shown Set up the X ray generator Recommended KV is e Radiography use 70 kV e Mammography use 28 kV e CT use
23. icator shows Status colour Running time left Green gt 2 hours Red tS minutes ooo Flashing red You may also check the battery level in the QABrowser see section Power Status 25 For Ocean on the PC please see the Ocean manual See section Power amp Communication Specifications for more information about battery charging and discharging times External Probe port and Opening for filter position viewing Here you attach the external probes that come with some models of the Piranha The port is marked EXT Not all models have this port Piranha amp QABrowser User s Manual 2014 06 5 5C 1 Description of the Piranha Indicators and Connectors The small square opening above may be used for monitoring the filter position inside the Piranha AA DAR C Product marking Indicates the model of you Piranha as well as the version serial number and applicable conformity markings Version RTI Electronics AB G teborgsv gen 97 50 SE 431 37 M lndal Sweden Web www rti se we Piranha 657 R amp F M XDP DR WR WF Sn CB2 06030020 Uy RTI Power switch Turns the Piranha on and off Marked 1 0 7 Camera thread for mounting A the Piranha to a holder Attachment for Safety strap The Power switch is used to turn the Piranha on and off Piranha has several ways of saving power when it is inactive but must be powered off manually since there is no auto power off function Below a b
24. l Time Display 8 Reset Bluetooth 24 Handheld 24 Piranha 8 Retry 7 Rontgen Unit 24 RTD 8 Indicators 8 Running time 4 ee Safety strap 3 Scatter factor 12 SDD Normalization 12 Select Beam quality 8 Detector 8 Module 8 Unit of measure 8 Sensitivity 19 21 Dose TF 19 kV 19 Serial number 8 Settings 19 21 Beam correction factor 17 Compression paddle 16 Conditions 12 15 Delay 19 21 Detector 21 Internal detector 12 19 Piranha 12 17 Postdelay 17 Pulse rate 16 Sensitivity 19 21 Threshold 19 21 Total Filtration 15 Trig level time 17 Trig source 17 Piranha amp QABrowser User s Manual Update mode 17 Waveform recording time 17 Waveform type 15 Window 19 21 Setup Power Management 23 Preferences 22 QABrowser 21 Units 22 Sleep time 22 Stand 6 Standards and Compliances 7 Start after delay 17 Starting the QABrowser 7 Status indicator 3 Stay on in Cradle 22 Support 24 Symbols 23 B ee TF Sensitivity 19 Threshold 19 21 Timed update mode 17 Total Filtration 15 Trig Visual indication 22 Trig level time 17 Trig source 17 Troubleshooting 24 U Unit Default 24 Gray 24 Prefixes 24 Rontgen 24 Unit of measure Change 8 Units 22 24 Unknown device 24 Update mode 17 USB connector 3 W Warning indicator 24 Waveform Activating 22 Waveform delay 17 Waveform indicator 8 23 Waveform recording time 17 Waveform type 15 Waveforms 12 White screen 24 Window 19 21 2014 06 5 5C
25. lock diagram of a typical Piranha system is shown 2014 06 5 5C Piranha amp QABrowser User s Manual 1 Description of the Piranha Indicators and Connectors Palm Computer QABrowser connection External probe Dose Probe Electrometer MAS Probe Personal Computer Ocean t 3 1 1 I a 1 i I D E I I I I I Li r I E E E I I I I E a i 1 1 1 4 1 i w Wireless Bluetooth or cable connection 1 2 Setting Up the Piranha for the First Time Before you use your Piranha for the first time please do the following e Attach the external power supply e Charge the system for 16 hours Then continue according to the following section 1 3 Setting Up the Piranha To set up the Piranha 1 Power on the Piranha using the power switch Optionally you may connect the power supply 2 Place the Piranha under the tube or mount the holder and HVL stand for positioning of the Piranha in the X ray field The stand allows you to position the Piranha or the external Dose Probe and HVL filters in any angle including upside down Use the light field or other help to position the Piranha in the X ray field The Piranha detector is not sensitive for different field sizes as long as the entire sensitive detector area is irradiated but try to keep the field size down to minimize scattering It is also recommended to position the Piranha in such a way that the detector area is orientated pe
26. mbol on the Real Time Display see Indicators and Symbols 23 AMX 4 The difficulties when measuring tube voltage on a GE AMX 4 is a well known problem Due to high kV ripple at a frequency of 2 kHz it is hard for most non invasive kVp meters to follow the kV waveform correctly DC HF Therefore it is important to select the AMX 4 waveform Single Ph under Settings Conditions 3 Ph 6 Pulse 3 Ph 12 Pulse More about the AMX 4 correction can be found in the Application Note 1 AN 52020 1 from RTI Electronics AB 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms Pulsed This waveform type should be used for pulsed fluoroscopy especially when the pulses do not have a good square waveform shape The exposure time must be longer than the selected recording time when using this waveform type Pulsed waveform type is selected under Settings Conditions in the same way as the AMX 4 waveform type Conditions Pulse rate ied conditions Conditions Pulse rate Total Filtr Set 23mmfl If a pulsed mode is used like pulsed fluoroscopy or Waveform Determine Pulsed radiography cine the pulse rate can be specified in pulses per second same as Hz This allows you to get a dose pulse reading even if the detector used e g ion chamber is too slow for the Piranha electrometer to detect the pulses A solid state detector like the Piranha Dose Probe is howe
27. n before the cursor moves on to the next position Lock unit prefixes means that the prefix of a unit is fixed and not auto ranging Analyse waveform means that the Piranha automatically analyses and determines the type of waveform Indicate trig lets you select how a trig event will be presented to you Can be all combinations of sound and graphics Active messages lets you enable disable the use of active messages the QABrowser automatically changes range or filter when the signal or tube voltage is too low high Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Battery amp Power Status 2 4 Battery amp Power Status The battery status for the Piranha and handheld are displayed together on a informative display as shown below You access this screen on the menu tap the 42 icon by selecting nfo Power Status A Rad All RTO 0 000 Lui Power Status Battery Level For both the Piranha and the Palm you can monitor the charge level by the fill of the battery symbol Piranha See also Indicators and Connectors 4 Lo 1 Palm m _ 2 5 Indicators and Symbols These indicators are shown in the upper rightmost corner of the real time display RTD and application screens These are either attention messages settings affecting your measurement readings or settings you have made Especially when using favourites they will give you a quicker overview A
28. om the Piranha with readings from an ion chamber See also section Average Glandular Dose AGD MGD When this is activated a red compression paddle indicator will show in the top right corner of the RTD screen m Equiv thickness The given equivalent compression paddle thickness is used to increase the accuracy of dose measurements when dose is measured below the compression paddle It is given in equivalent thickness of aluminium This feature can also be used if you have additional filtration in the beam Add the equivalent thickness of aluminium Conditions Beam Correction tatty v Conditions Sometimes you may want to make comparable measurements with known mechanical setup For instance if you want to emulate ion chamber measurements in a particular scattering situation Then you can set a Beam Correction factor to get that reading In this case the ion chamber measures an extra 25 from side and back scatter Using this factor makes the readings to be the same It is of course important that the mechanical setup in these cases are the same When this function is activated a red horisontal indicator will show in the top right corner of the RTD screen 2 2 3 2 Settings Piranha Here general measurement settings for the Piranha are shown M Beam Correction 1 25 Settings Piranha Post delay v 250ms Trig source Individually Trig level time 50 Update v After exp W f oe nei w 2
29. ons TotalFiltr v Estimate 0 0 mml Compression paddle Waveform w Determine Scatter factor 1 000 Equiv thickness 0 10 Pulses w Determine Temperature 20 0 as Pressure 101 3 kPa TP Factor 1 000 Tap Conditions to show the drop down list with other settings Waveform w DC HF Piranha General settings for the Piranha Internal detector detector Specific settings for the Internal detector detector If your model of Piranha has an external probe that is attached it will also show here 2014 06 5 5C Piranha amp QABrowser User s Manual 2 Description of the QABrowser Real time Display and Waveforms Piranha Post delay v 250ms Trig source Individually Trig level time 50 Update v After exp W f ae w 2 2 s 250 Sa s O Start after delay v internal detector Dose TF kV Sensitivity v Low High Delay w 5ms Window Infinite O Normalize to distance S N CB2 07030047 a ia Sensitivity w Low Threshold Hormal MAS 2 SM 010 Piranha Shows general settings for the Piranha You can find information about the different parameters in Settings Piranha 17 Internal detector Shows specific settings for the Internal detector detector as well as the serial number You can find information about the different parameters in Settings Internal detector 19 MAS 2 Shows specific settings and the s
30. rpendicular to the anode cathode axis to avoid the heel effect Recommended field size is 20x40 mm 3 Connect with Handheld via Bluetooth or with Ocean via included USB cable or via Bluetooth Piranha amp QABrowser User s Manual 2014 06 5 5C 1 Description of the Piranha Standards and Compliances 1 4 Standards and Compliances Hereafter you can find declarations of conformity as well as documents describing the intended use of the Piranha system 1 4 1 FCC Certification Piranhas of product version 3 1 and newer contains FCC certified transmitter module Bluetooth FCC ID R47F2M03GX This device has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used according with the instruction manual may cause harmful interference to radio communication Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense 1 5 Standards and Compliances For standards and compliances see the reference manual 2 Description of the QABrowser 2 1 Starting the QABrowser Wireless through Bluetooth 1 Turn on the meter 2
31. tors and Symbols JJa Waveform indication This symbol indicates that the waveform was set or determined as 3 Phase 12 Pulse Tube voltage readings are affected by this The waveform functionality can be changed under Settings 12 quy Waveform indication This symbol indicates that the waveform was set as AMX 4 from General Electric See Settings Conditions 15 for more information Tube voltage readings are affected by this The set waveform can be changed under Settings 12 e This symbol indicates that one or more measured value is not displayed fF 4 with maximum accuracy This indicator is for example shown when the Piranha is unable to apply a correction compensation to a measured value Tap the symbol to get a detailed description of the problem The indicators may appear in different situations and in different places in the QABrowser but they always have the same meaning and functionality 3 Problems and Solutions 3 1 Troubleshooting Before contacting your distributor or RTI Electronics please check the following tips A Check the RTI web page for updates http www rti se B Run through the checklist below The Piranha does not work Check 1 Check that the motor moves properly or can beep QABrowser Setup System Test The Piranha filter seem to have stuck 1 Start the QABrowser and run the filter test QABrowser Setup System Test 2 Hold the Piranha in you right hand by the cable edge 3 Wh
32. tting Up the Piranha for the First Time erre 6 Vo Senng up he Piranha sa ea aad aa oe 6 1 4 Standards and Compliance cccccssccccssecceeeeceececseseeceeeeseusessusessueeeseas 7 1 4 1 PCC COMMCANOM ssa essas E EASTER GUEDES ed 7 to Standards and Compliances gates acao ces eee eee ee eek 7 2 Description of the QABrowSel cccccscccssseeeeseeeeseseeeesseeseeneeseenensaees 7 2 1 Starting the QABIOWSEF excised sia Gessos ene en nee eee oS 7 2 2 Real time Display and Waveforms eee nene 7 2 2 1 Using the Real Time Display cccccccccsssceccceeseecceeeseeeseeeeesseeseeesseaseeesseasessnees 8 2 2 2 Waveforms Acquiring and Viewing ccccceeeececeeeeeeeeeeeeeeeeeeeeeeeesaaeeeeeeaeeeeesaanes 12 223 Meas rement Settings airtel Seg MS 12 22 51 SSWINGS CONGINONS bichas nina pa a E 15 Zi SUIS Sr WANA enea a add aa Ga Ad 17 22d Settings Internal detector pia estara a ae aaaea aaa dita 19 2 2 3 4 Settings Other Detectors 20 0 0 ceeccecsesssceceeesseeeseesscesseesseesseeseeessaseeesees 21 ZO QABOWSEFSCIUD esposas soseac ea Paes ACT Ea e e 21 2 3 1 UAIS SGUD asia DER id GE PTI C A baa eee ESA 22 2 3 2 Preferences SCT errero cece eee PERO COS Ata aaa soda 22 24 Battery amp PoOWer Slats ossadas aeei Sees a ee 23 2 5 Indicators and Symbols ccccceeeececseeeeeeeeeeeeeeeeeeeeeeesseeeeeseeeeesaeeeeeseeeeas 23 3 Problems and Solutions
33. veform Then you can go back to the RTD and tap Wave again when the waveform recording time has passed to get the full waveform 2 2 3 Measurement Settings As mentioned before all settings of the Piranha are done automatically when you select type of measurement For example when you choose fluoroscopy the detector sensitivity is set to high However there might be situations where the default settings cannot be used and settings must be adjusted Use Settings to adjust the Piranha when necessary The figure below shows how to access this function Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser as Real time Display and Waveforms AA RadZAII RTD 0 000 ah 0 000 LE 0 000 is mm HYL 0 000 mAs Tap this symbol to open the screen with 0 000 Li Settings for the Piranha and the various YR1 4 45 125 YW 3mm Al detectors Back Reset Wave Appl When you tap the symbol the Settings screen is shown This can also be accomplished by tapping the id icon on the graffiti area or the Tungsten T3 T5 TX status bar What is shown here is dependent on selected parameter s and used detectors Conditions Shows general conditions for the measurement Different values can be shown depending on selected measured parameter Details about the Condition screens can be seen in Settings Conditions 15 Conditions Conditions Conditi
34. ver fast enough to detect the frequency even for very low level signals Pulserate w Set 5 pps Conditions Compression paddle Eat Conditions For mammography it is sometimes easier to do O Compression paddle measurements with the compression paddle in the field The compression paddle will however normally affect the Piranha kV and dose reading With this check box all the measured values kV dose and HVL will be corrected according to what the user has selected The default setting the first time you start the software is without the compression paddle in the field v Conditions When selected you will see the settings for Scatter factor and Equivalent thickness The thickness is given in mm Al if you do not know ask the manufacturer or make a comparison with Aluminium filters When this option is active an indicator on the RTD screen indicates that this feature is on Compression paddle Scatter factor 1 000 Equiv thickness 0 10 Back d Scatter factor If an ion chamber is positioned just below the compression paddle the measured dose will rise because of side scattering from the compression paddle material The effect of this is depending on the ion chambers angular dependence Since the Piranha is Piranha amp QABrowser User s Manual 2014 06 5 5C 2 Description of the QABrowser Real time Display and Waveforms almost insensitive to this you can put a number here to compare readings fr
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