user manual - GAMMA
Contents
1. e Large Scale GAMMA SCOUT is calibrated to measure across a wide scale 0 01 up to 5 000 00 pSv h e Tested Calibration Each GAMMA SCOUT radiation meter is subjected to a final test This test is supervised by the Institute of Radiation Protection a state university for applied technology The tested device must be within a confidence interval of 5 against a master which in turn is adjusted to a gauged reference Cs 137 emitter e Dose Rate and Dose GAMMA SCOUT can be used as a dose meter cumulative radiation e Flexible display The dose rate may be displayed in sievert or Rem e Energy Saving Constant Operation The GAMMA SCOUT monitors radiation day and night and logs data for later download Due to sophisticated electronics its battery lasts for years The RECHARGEABLE model works with a rechargeable battery e Data Storage GAMMA SCOUT stores all registered pulses in its internal memory and keeps them ready for you to use when desired 32 000 readings For constant monitoring storage of environmental data is set at an interval of one value per week which equates to 600 years of memory capacity The user can set smaller intervals page 14 which fills the memory capacity sooner See below for deletion options e Certification GAMMA SCOUT meets all European CE standards as well as the American FCC 15 standard GAMMA SCOUT may be carried on aircraft GAMMA SCOUT w ALERT basic functions plus aler2. Please take all necessary precautions in working with radioactivity and observe radiation protection regulations Gamma Scout USB drivers are available directly on the internet as plug and play drivers through Microsoft Windows Driver Distribution Detailed information on installation is available in the manu al on page 15 or on our homepage www gamma scout com Downloads driver installation Gamma Scout devices Ag Windows hardware certification report Approved Submission ID 1615550 Submission date 10 21 2013 Hardware certification 10 21 2013 completion date Company Gamma Scout GmbH amp Co KG Product name Gamma Scout abc radiation measuring Instrument Category Device Product type Other Device Qualification level Signature Only Microsoft Windows 2000 family Signature Only Microsoft Windows XP family x86 Signature Only Microsoft Windows Server 2003 family x86 Signature Only Microsoft Windows Server 2003 family x64 Signature Only Microsoft Windows XP family x64 Signature Only Microsoft Windows Vista family x86 Signature Only Microsoft Windows Vista family x64 Signature Only Windows Server 2008 family x86 Signature Only Windows Server 2008 family x64 Signature Only Device Compatible with Windows 7 Signature Only Device Compatible with Windows 7 x64 Signature Only Device Compatible with Windows 8 Signature Only Device Compatible with Windows 8 x64 Marketing names N A
3. Additional information Firmware version 2 08 30 GAMMA SCOUT Summary Information on CD and Manual This manual is regularly updated but there may be a time lag between website and print form The latest version can also be downloaded as a pdf file from our website Download gt User Manual e oo WWW gamma scout com Enclosed is a CD ROM which also contains data conversion software GAMMA SCOUT TOOLBOX Version 4 For Windows operated Personal Computers VISTA WIN 7 and 8 8 1 32 and 64 Bit Available in German and English version USB driver Necessary installation advice Software for Apple iMac and MacBook users in preparation to follow shortly For more developer specific information go to www gamma scout com and click on DOWNLOAD Notes e The disposal agreement according to packaging regulations was concluded with Susa Solutions Gmbh e For revocation clause according to distance selling regulations see www gamma scout com German version AGB legal notes Alpha Beta Gamma Radiation GAMMA SCOUT Your GAMMA SCOUT is equipped with a Geiger Muller counter tube enabling you to detect not only gamma radiation but alpha and beta radiation as well Choose to Exclude Alpha and Beta Radiation You can use the radiation selection switch to limit the types of radiation you want to measure Set the selection to center position y symbol if you want to detect gamma radiation only With the switch in this pos
4. Box 1346 Abtsweg 15 D 69198 Schriesheim Germany Fax 49 0 62 20 66 40 drmirow gamma scout com www gamma scout com Last Revised April 2015 Notice We accept all returns for recycling
5. dose rate alarm is disabled Press the button to enter save the new threshold value Dose Measurement GAMMA SCOUT Displaying and Resetting the Dose Meter cumulative dose When the dose meter is running the amp symbol shows in the display The dose is displayed in X XX mSv format Values of less than 0 01 mSv show as 0 00 mSv To start stop restart and reset the dose display and to mark the alarm threshold follow the chart below automatic return to standard mode at the end of each branch Standard mode Enter Dose meter runs x seconds ii Return after i Enter ete Time of dose Alarm off pur E Stop blinking Enter Stop dose meter SUM switched off Dose meter stopped Value gt 0 i Enter Enter Start dose meter Displa 5 w a RUN e SUM switched on pan Pa Display GO A Enter Set dose 0 DEL Set time 0 blinking PE Alarm icon 0 Co Su blinking 0 Increase Dose meter stopped Al ry Value 0 Enter Enter Yet thresh RUN Erter threshold pa pan x Y Decrease 2 Oo 13 GAMMA SCOUT Setting the Log Clearing the Memory GAMMA SCOUT automatically logs the num
6. 40 email e mirow gamma scout com See back cover Rights of modification reserved Scientific definitions see www hpa org uk radiation glossary 18 O O e GAMMA SCOUT Technical Data Calibration Physical Parameter Si unit Old unit Relation Activity Becquerel Bq Curie Ci 1 Ci 3 7 10 Bq 1 Bq 1 s 1 Bq 2 7 10 Ci 27 pCi lon dose Coulomb kg R ntgen R 1 R 2 58 10 C kg 1 C kg 3876 R Energy dose D Gray Gy Rad rd 1 rd 0 01 Gy 1 Gy 100 rd Equivalent dose H sievert Sv Rem rem 1 rem 0 01 Sv 1 Sv 100 rem Effective Dose H sievert Sv Calculated value 1Sv 1d kg radiation protection For relationship between Becquerel and sievert see pages 20 21 For further information on Becquerel see Gamma FAQ on www gamma scout com Calibration Under environmental radiation the counter tube is not subject to fatigue and therefore will not re quire re calibration However if the user holds ISO certification periodical calibration is mandatory For this purpose we offer the following service Testing is sub contracted to an assembly operation which tests it for 72 hours against a master The master is calibrated against a gauged reference source Cs 137 A data log is then generated To the best of our knowledge this record is accepted as compliant by ISO auditors without excepti on Currently this costs 50 Euro before sales taxes IT Support In order of problems by installing the product
7. 796 MBq 79 6 MBq Becquerel lt gt pSv h f 18 at a distance of 1m with the shield open 1 GBq 100 MBq 10 MBq f 18 at a distance of 1m with the shield closed 1 GBq 100 MBq 10 MBq 154 pSv h 15 4 uSv h 1 54 uSv h 147 pSv h 14 7 pSv h 1 47 pSv h 100 pSv h 10 uSv h 1 uSv h 100 pSv h 10 uSv h 1 uSv h GAMMA SCOUT 0 65 GBq 65 MBq 6 5 MBq 0 68 GBq 68 MBq 6 8 MBq 21 GAMIMA SCOUT A Alert level 6 12 B Bar chart 6 7 16 18 Battery change 11 Becquerel 9 19 20 21 C Calibration 19 Current radiation 6 D Data download cable 15 Data reading 15 Data storage GAMMA SCOUT 2 Data transfer 15 Date 10 Delete data 16 Dose cumulative 2 7 13 Dose equivalent 4 19 Driver 15 F FCC 15 standard 2 3 4 18 G Geiger Miller counting tube 5 18 L Log setting 14 Logging intervals 14 22 O O e M Measuring time setting Memory capacity Memory clearing Microsievert 0 ONLINE Model P Power consumption Pulse counting Pulse rate measuring R Radiation selection switch Radiation types Rechargeable battery Reset button Rem S Service Support T Technical data Ticker Time Time setting TOOLBOX software U USB port 2 Delete Al Delete Keywords 5 8 11 2 5 9 3 4 15 16 15 17 13 12 GAMIMA SCOUT Notes 23 A GAMMA SCOUT Measures Radioactivity Easily and Reliably Dr Mirow GAMMA SCOUT GmbH amp Co KG P O
8. A GAMIMA SCOUT Measures Radioactivity Easily and Reliably T V FCC 15 A product of GAMMA SCOUT GmbH amp Co KG complies with FCC standards a USA institution C Control Panel GAMMA SCOUT GAMMA SCOUT is a user friendly device The following design is an introduction to GAMMA SCOUT s different features Diaphragm aperture Ray selection switch Display 1x Timer Interval for pulse counting 2x Pulse measure Time Date Increase value 1x Battery voltage Input value 2x Ticker ON OFF 1x Decrease value Pulse rate measurement 2x Change Sievert Rem Indication in counts per sec cps 1x Data transfer 1x Log setting 2x ONLINE ON OFF 2x Alert level setting Radiation reading in microsievert per hour GAMMA SscouT oe Reset button USB interface For ONLINE model only 1x press button once 2x press button twice GAMMA SCOUT Contents Summary 2 Introduction to GAMMA SCOUT Radiation Detector Features Offered Models Summary 3 4 Operating Conditions Technical Notes Working with Radioactivity Legal Limits Information on CD and Manual www gamma scout com Alpha Beta Gamma Radiation 5 Optional Blocking of Alpha and Beta Radiation Radiation Measurement 6 Operation Modes Display Current Radiation 24h Average Automatic Alarm Threshold w ALERT version only About microsievert Limits Rechargeable Battery Operation 7 Common Input and Legal Limits Rang
9. Each bar equals 1 000 measured values so 32 000 values would use up ca 3 of memory By pressing the A button you select more frequent logging and consequently shorter logging intervals By pressing the button you select less frequent logging and consequently longer logging intervals e By pressing the button you enter the logging interval just selected e You can transfer the logged data to a personal computer at any time and then clear the GAMMA SCOUT memory for fresh use GAMMA SCOUT automatically prolongs the logging interval to one week when there are only 256 bytes of 65 280 bytes of memory capacity remaining You can set shorter logging intervals only once storage has been cleared Clearing the Memory then AJ or M e To clearing the memory use the following key sequence Key scroll until Pdel appears then press the key 14 O O e Data Reading TOOLBOX Software GAMMA SCOUT The GAMMA SCOUT TOOLBOX software enables you to read out the data gathered and stored by GAMMA SCOUT The data is provided in list format Connect your GAMMA SCOUT to a com puter USB port The data is then automatically read out and displayed To avoid overloading this manual we are providing only a brief description of the procedure You will find full details under the TOOLBOX Handling link on our website www gamma scout com under gt DOWNLOAD System Requirement
10. Power Consumption Memory Housing Dimensions Interference Protection Service Media enquiries IT Support Last Revised GAMMA SCOUT Liquid crystal display LCD 4 digit numeric with description quasi analogue logarithmic bar chart Operating mode indicators End window counting tube to the Geiger Miller principle Stainless steel housing Measuring length 38 1 mm measuring diameter 9 1 mm Mica window 1 5 to 2 mg cm Zero rate lt 10 pulses per minute with screening by 3mm Al and 50 mm Pb operating temperature 20 to 60 C operating voltage approx 450 V calibrated scale 0 01 pSv h to 5 000 00 uSv h above and below this we refer to as the display area a from 4 MeV B from 0 2 MeV Y from 30 keV a B y without shielding B y Al foil approx 0 1 mm shields completely y Al shield approx 3 mm shields completely and B to 2 MeV weakens y by less than 7 based on Cs 137 Devices can be returned free of charge and we will pass them on for recycling Less than 10 microamperes under environmental radiation 256 000 byte 100 000 data sets Impact resistant plastic Length 163 mm x width 72 mm x height 30 mm European CE standard US FCC 15 standard Data reset is not a malfunction GAMMA SCOUT GmbH amp Co KG Abtsweg 15 D 69198 Schriesheim GERMANY Fax 49 0 62 20 66 40 email drmirow gamma scout com GAMMA SCOUT GmbH amp Co KG Abtsweg 15 D 69198 Schriesheim GERMANY Fax 49 0 62 20 66
11. adiation pulses counted the different components of a radiation mix are converted into a common measure of biological effect The basis is Cs 137 Conversion into the equivalent dose refers to the gamma quantum of the Cs 137 radionuclide with quantum energy of 662 keV The conversion takes place due to physical reasons with different factors dependent upon the amount of impulses per time in the environmental field the factor 150 impulses per minute 1 0 microsievert per hour d Limits Rechargeable Battery Operation GAMMA SCOUT o Normal Values of Exposure to Radiation Limit Values i For individuals with professional exposure to radioactive sources in the EU there are two legal upper limits Dose rate limit is 6 mSv p a 3 wSw h assuming 2 000 working hours per year Category B Dose rate limit is 20 mSv p a 10 ySv h assuming 2 000 working hours per year Category A i An exclusion zone exists starting at 3 mSv h The natural environment in Heidelberg Germany has a radiation level of about 0 1 0 2 micro Sv h Below the digits showing the measured value is a bar chart illustrating the detected dose is illustra ted The symbols state that one can be exposed to this radiation for longer than 1 year gt 1a be fore the legal maximum of 20 mSv p a is reached Higher radiation shortens this time of exposure Operating Range GAMMA SCOUT has been conceived for monitoring constant mo
12. ate are required to ensure that the measured radiation is accurately logged Using a function in the data read out program of the TOOLBOX software the GAMMA SCOUT date and time can be synchronized to a PC Choose the menu Set any time to set your choice of date and time e g different time zones on the GAMMA SCOUT Displaying Time and Date Press the button to view the time The display shows the set time and the symbol Press the button a second time to view the date The display shows the set date as well as the E symbol Setting the time First view the time by pressing the button Then press the button to set the hours Both hour digits flash in the display Use the 4 and buttons to set the hour forward or backward as desired Confirm the set value with the button and move on to set the minutes Press the button a second time to set the minutes gt a lt ta lt im Both minute digits flash in the display Use the A and Y buttons to set the minutes forward or backward as desired Confirm the set value with the 4 button and move on to set the seconds f you wish to set the seconds as well press the button a third time The display shows the two minute digits together with the flashing digits for the seconds Use the A and buttons to set the seconds forward or ba
13. ber of pulses measured and stores this data in its internal memory This data can be read and processed quickly and conveniently on a PC using the TOOLBOX software for exact instructions go to www gamma scout com The factory settings for the logging process mean that GAMMA SCOUT will accumulate the pulses for each week and store them as weekly values On this basis the memory capacity is sufficient to log weekly values for 600 years As the following table demonstrates you can also set shorter logging intervals with corresponding reductions in the storage capacity Logging stops when the storage capacity is full So far we have not had a single request for an overwrite Logging interval Display Storage capacity Logging interval Display Storage capacity 1 week Pr 7d approx 615 years 10 minutes Pr 10min approx 7 3 month 3 days Pr 3d approx 263 years 5 minutes Pr Smin approx 3 7 month 1 day Pr 1d approx 88 years 2 minutes Pr 2min approx 1 5 month 12 hours Pr 12h approx 44 years 1 minute Pr 1min approx 20 days 2 hours Pr 2h approx 7 3 years 30 seconds Pr 30s approx 10 days 1 hour Pr 1h approx 3 7 years 10 seconds approx 3 days 30 minutes Pr 30min approx 1 8 years Clear log Clear data Setting the Log e Press the button to switch to log mode The display shows the log symbol The bar chart will also appear briefly indicating how much log memory is currently being used
14. ckward as desired Confirm the set value with the button Setting the Date Press the button twice to view the date display Then follow the description for setting the time You can stop setting the clock at any time by pressing the button To stop setting the year press the button a fourth time 10 O O e Battery and Power Supply GAMIVIA SCOUT GAMMA SCOUT is powered by a 2 7 3 7 V lithium thionyl chloride cell The device will continue functioning until the cell voltage is down to 2 8 When the voltage drops below this value the batte ry symbol will appear in the display The data will be retained even following a total loss of voltage The RECHARGEABLE model has a rechargeable battery which can be recharged via USB or the power supply unit included with delivery Displaying the Battery Voltage Press the button H to display the current battery voltage The display shows the remaining voltage available minus the load drawn by the built in electronics Displaying the Software Version Press the button while the battery voltage is displayed the display briefly shows the software version Changing the Battery The battery is permanently fixed to the circuit board because of our extremely low currents of approximately 10 microampere plug in batteries would constantly lead to current interruptions due to oxidation on the c
15. drivers or TOOLBOX software do not hesitate to contact us GAMMA SCOUT GmbH amp Co KG Abtsweg 15 D 69198 Schriesheim Germany Fax 49 0 6220 6640 E Mail e mirow gamma scout com Becquerel lt gt pSv h Conversion of Becquerel activity into pSv h dose rate GAMMA SCOUT The relationship between Becquerel activity i e the measure of the decay in the atom and micro sievert per hour dose rate i e the measure of the radiation at the device gt The values apply to a point source at a distance of 1m from the device Cs 137 at a distance of 1m with shield open 1 GBq 86 uSv h 100 MBq 8 6 pSv h 10 MBq 0 86 uSv h Cs 137 at a distance of 1m with shield closed 1 GBq 81 uSv h 100 MBq 8 1 pSv h 10 MBq 0 81 uSv h Co 60 at a distance of 1m with shield open 1 GBq 372 uSvw h 100 MBq 37 2 uSv h 10 MBq 3 72 uSv h Co 60 at a distance of 1m with shield closed 1 GBq 339 uSv h 100 MBq 33 9 uSv h 10 MBq 3 39 uSv h Tc 99m at a distance of 1m with the shield open 1 GBq 13 pSvw h 100 MBq 1 3 ySv h 10 MBq 0 13 uSv h Tc 99m at a distance of 1m with the shield closed Measurement not possible dose rate too low 20 O O e 100 pSv h 10 pSvw h 1 uSv h 100 pSv h 10 pSv h 1 pSv h 100 pSv h 10 pSvw h 1 uSv h 100 pSv h 10 pSv h 1 uSv h 100 pSv h 10 pSvw h 1 uSv h 1 17 GBq 117 MBq 11 7 MBq 1 24 GBq 124 MBq 12 4 MBq 0 27 GBq 27 MBq 2 7 MBq 0 30 GBq 30 MBq 3 0 MBq 7 96 GBq
16. e end of the data reading process by selecting delete from the menu If you are not in the reading program you can use the E button page 14 16 O O e GAMMA SCOUT ONLINE REAL TIME Model GAMIMIA SCOUT ONLINE REAL TIME Model The ONLINE model is designed to transfer data at regular intervals between the GAMMA SCOUT and a connected PC in real time The power supply when connected directly to the PC online is via the PC s USB interface Requirements REAL TIME data transfer is possible only with the GAMMA SCOUT ONLINE model To activate the REAL TIME display on your computer the TOOLBOX read out software must already be installed on your computer see page 15 Use Connect the GAMMA SCOUT ONLINE to your computer and start the TOOLBOX You will have to wait for approximately 30 seconds for data transfer to begin automatically Once this happens confirm it in the selection menu on the left under the Online command see photo 1 Now set the preferred interval timing see photo 2 and choose between further functions such as dose rate display or cumulative dose see photos 3 4 Elo 14 uSv h wie peers For detailed information on using the REAL TIME program please go to www gamma scout com and click on the DOWNLOAD link 3 Technical Data Calibration Display Radiation Detector Radiation Types Selection shield for point radiation Recycling
17. e of GAMMA SCOUT Display Rechargeable Model Powered via USB automatically or Wall Power Supply Charge Control Pulse Counting 8 GAMMA SCOUT used as a Geiger Counter Shift from Dose Rate Mode to Pulse Counting Mode and Reverse Pulse Rate Measuring 9 Ongoing Pulse Count Display Pulse Rate over time Time and Date 10 Integrated Quartz Clock Time Display Time Date for Accurate Logging Adjust Time Date Battery and Power Supply 11 Battery Type Display Voltage Change Battery Reset Button Power Consumption Due to Frequent Ticker Use w ALERT Alarm Threshold 12 Exceeding Dose Rate Threshold Individual Setup of Dose Rate Threshold Counting the cumulative Dose 13 Display and Reset Dose Counter User Programming of Alarm Threshold for the cumulative Dose Log Setup Clearing the Memory 14 Automatic Logging Internal Memory Log Setup Deleting Content Data Reading and Display TOOLBOX Software 15 16 System Requirements Accessories Driver Installation and TOOLBOX Software Data Readout GAMMA SCOUT ONLINE Model REAL TIME 17 Requirements Use Technical Data Calibration Support 18 19 Becquerel lt gt pSv h 20 21 Keywords 22 Summary GAMIMIA SCOUT Functions and Features all models e Easy Reading In measuring mode amp button the display shows the current radiation measurement reading every 2 sec The display also temporarily shows the average H of the last day 24h 12 am to 12 am
18. e pulses registered by the counting tube are continuously measured and converted into a pulse rate The unit of this pulse rate is cps counts per second Note What is being calculated is the rate of ionization per second recorded in the counter tube This is not identical to the activity of the isotope which is defined in Becquerel Displaying the Pulse Rate Press the button sto switch to the pulse rate measu ring mode The symbol J will flash during measurement After measuring the symbol EJ becomes steady again Pulse rate measurement gives the average number of pulses per second Since radiation intensity may strongly fluctuate extensively over a brief period this average will of course be more exact over a longer measurement period GAMMA SCOUT provides you with a first result within a few seconds Then it automatically prolongs the measu ring time to a maximum of 4096 seconds in order to i reach as precise an average figure as possible 0 253 A For example 1024 pulses after 4096 seconds 0 25 pulses second After pressing the button the measu ring intervals always start again after 2 seconds Note Pressing the e button displays the number of measured impulses i e ionized molecules per second Of course this is not the activity of the source Becquerel GAMMA SCOUT Time and Date GAMMA SCOUT has an integrated quartz clock pushbutton display Time and d
19. ead it out the driver software technically two drivers must be downloaded to your hard drive from the internet Once this has been completed the TOOLBOX can then be installed and run Detailed instructions for installing and using the TOOLBOX program can also be found on our web site www gamma scout com under gt DOWNLOAD 1 Applies to all GAMMA SCOUT models To use GAMMA SCOUT ONLINE REAL TIME see also page 17 GAMIMA SCOUT Data Reading TOOLBOX Software Reading the Data Requirement The device software TOOLBOX must be installed on your hard drive 1 Connect your GAMMA SCOUT with your PC e Connect GAMMA SCOUT with PC using the USB cable supplied 2 Download the data e Start the program from your PC using GAMMA SCOUT TOOLBOX Start All Programs GAMMA SCOUT TOOLBOX For new devices manual program start is no longer necessary e The data transfer starts automatically ca 30 seconds delay The following data table must appear possibly via the menu command notification area ausner ting der Rohdaten orent Seovt Toolen ie 2 0 0 gkamawishnst jas mess mteryall pos WerStul ler dur abtasteatd mient baarder murde be che lsgenmen tr Banta sting aa me ies eet Sta sume oor iddi 0000500002 0000900401 e Should the table not appear automatically please disconnect the cable wait for around one minute and retry plug amp play Deleting the Data e At th
20. erel see p 44 45 GAMMA SCOUT stores the received pulses in its internal memory o O Pulse Count with GAMMA SCOUT Press the Ht button to switth GAMMA SCOUT to the pulse count mode The display will show the pulse sym bol Counting has not yet begun Pressing the F button a second time will start counting without pre setting the measuring time Press the button if you want to set a measuring time For the measuring time to count in seconds press the button once For the measuring time to count in minutes press the button twice For measuring time to count in hours press the button lt three times Now set the exact value of the desired measuring time using the 4 and buttons Start measuring by pressing the button FY a second time The pulse symbol flashes in the display during the measuring time f a measuring time was set the pulse symbol flashes until the end of the measuring time then becomes steady again The display now shows the number of pulses coun ted for the programmed interval e You can stop measuring in two ways By pressing the button HH once again the measuring result remains visible in the display By choosing another operating mode the measuring result disappears Pulse Rate Measurement GAMMA SCOUT In the pulse rate measuring mode th
21. ged internally On rechargeable devices the timer does not switch off automatically GAMIMA SCOUT w ALERT Alarm Threshold Exceeding Dose Rate Alert Threshold w ALERT version Gamma Scout also provides information on the cumulative dose received by the device measured on the time axis As described below users can stop summation restart from an old level or delete and restart from zero Because of this and other reasons the accumulated dose cannot be used as a certified personal dose meter GAMMA SCOUT w ALERT features an acoustic signal that sounds when the dose rate exceeds a specified level The default alert level is 5 ySv h If this value is exceeded by measurement of radi oactivity this will be shown with an additional A symbol in the display The A symbol in the display can be erased by pressing the P button twice Individual Programming of Dose Rate Alert Level Press the button once to switch to the log frequency mode see page 12 Pressing the button a second time switches the device to alert level mode The set level shows in the display Press the A or the X button to increase or decrease the threshold respectively The new value appears blinking in the display The lowest possible threshold setting is 0 1 wSv h the maximum is 2 mSv h The step change is 0 1 wSv h at the lower level becoming wider higher up the range try this If the AOFF setting is selected the
22. ition an aluminum shield screens the counter tube window against alpha and beta radiation Turn the switch to the left B y symbols if you want to measure gamma and beta radiation but no alpha radiation Now an aluminum foil screens the counter tube window against alpha radiation Turn the switch to the right a B y symbols if you want to measure all three radiation types The counter tube window is now open and can be accessed by all three radiation types For normal measuring place the radiation selection switch at center position Alpha and beta radia tion are limited in range to a few centimeters or meters so can only be detected when very close to the radiation source This also explains why it makes little sense to keep the radiation selection switch constantly open an added reason being that the counter tube window may be damaged in this exposed position for example when poked by a sharp object such as a pen GAMMA SCOUT Radiation Measurement Display Current Radiation Pressing the 4 button puts GAMMA SCOUT into standard mode and its display shows you the present radiation in microsievert per hour not only as a value but also in the form of a bar chart Note that for a small radiation value this bar chart appears only as a single line In order to visualize the volume of detected radiation there are symbols beneath the bar chart such as gt 1a more than 1 year lt 1m less than 1 mo
23. nitoring with log normal working and environmental locations Very strong gamma radiation loads above 1000 pSv h 5 000 times normal radiation in Heidelberg cannot be measured with this technology Should this occur Overflow and an alarm symbol A will appear in the display Data above the measurement limits i is marked with in the download table Reset icon by pressing 4 button twice O Device with Rechargeable Batteries RECHARGEABLE For customers using the GAMMA SCOUT above 10 pSv h in a laboratory or preferring a rechar geable power supply we constructed the RECHARGEABLE model This model needs a different power supply and is therefore equipped with a rechargeable battery Charging starts automatically when the GAMMA SCOUT is connected to a PC via a USB port or with the power supply unit included Charging time with the power supply unit is ca 8 hours An internal charging circuit prevents over charging The charge status is displayed by pressing the H button Full charge 4 0 V Models Standard and w ALERT show about 3 6 V GAMIMA SCOUT Pulse Counting When and Why GAMMA SCOUT can also be used as a normal Geiger counter In this case it simply counts the number of pulses received without converting them into sieverts The type of isotope is not relevant for converting the pulses per time into dose rate It is relevant for conversion into activity Becqu
24. nth etc To switch from uSv h to uRem h and back start from measure radiation mode Press the Y button and confirm the suggested units with the button All data will be displayed in the selected units Calculate Average Over the Past Day 12 00 am to 12 00 am e Pressing the 4 button a second time displays the average radiation over the last day midnight to midnight taken from the GAMMA SCOUT clock for a few seconds again in microsievert per hour The symbol in the display will blink Note that this function is not available for up to 48 hours after first operating the device or after a resetting Automatic Alert Level w ALERT version When exceeding the user programmed alert level GAMMA SCOUT generates an acoustic alert and displays the blinking Alicon This icon continues blinking until the user shuts it off by pressing the amp button twice O O Whatis a microsievert In physics three types of radioactive radiation are known alpha beta and gamma radiation They differ not only in their physical characteristics but also in their effects on humans To make these three radiation types com parable in their effects on humans a value has been created which defines the biological effects of radiation itis referred to as the equivalent dose and its unit of measurement is the sievert The older unit was called REM 1 REM 0 01 Sievert Sv Based on the r
25. ontacts Should the user want to solder in a new battery the initial settings can be restored by pressing the reset button However please be aware Opening GAMMA SCOUT cancels the warranty Reset button The device can be restarted by pressing the reset button next to the opening for the USB interface flat on the circuit board This changes time and date back to factory settings Ticker not in the basic model A double click of the H button will display the word on which means that the ticker can now be switched on Pressing the button will switch on the ticker and a speaker symbol appears in the display If the ticker was already on the word off would appear in the display and pressing the button would switch it off The speaker symbol would then disappear With the ticker is switched on GAMMA SCOUT emits a tone with each pulse Increasing radiation will cause single tones to become a cascade The tones use 500 times more power than normal measurement does under environmental conditions Therefore the ticker switches off automati cally after 10 minutes If the ticker is used once per day the power consumption remains within the acceptable service life of the battery If the ticker is used more often the battery will last for a shorter period In this case a maintenance fee will be charged for a battery change Number and duration of ticker use is log
26. s The GAMMA SCOUT TOOLBOX software requires an MS Windows PC Vista WIN 7 or WIN 8 8 1 32 and 64 Bit version with USB interface a valid OS license on your computer a functioning internet connection and the administrative rights to the computer The GAMMA SCOUT TOOL BOX for MAC users will follow shortly Accessories Data Download Cable The cable between the USB PC interface and the USB Port of the GAMMA SCOUT is included with the device Installing the Program and the Necessary Drivers Initial installation of the USB drivers amp TOOLBOX The GAMMA SCOUT is an external device such as a printer camera or USB stick The connec tion between the GAMMA SCOUT and the computer therefore needs so called driver software before the TOOLBOX can be installed and used Since 10 22 2013 the GAMMA SCOUT USB drivers have been available in the internet directly from Microsoft via Microsoft Windows Driver Distribution This has greatly simplified the installation of the USB drivers and the TOOLBOX The instructions for driver installation are available from our website www gamma scout com under gt DOWNLOAD Depending on the current performance and status of your PC the installation could take several minutes please do not interrupt the process Installing the TOOLBOX following successful driver installation In order to be able to install the TOOLBOX for the first time as well as transfer the data to your com puter and r
27. t and ticker Dose Rate Threshold This model features an acoustic alert when radiation level exceeds a user programmed threshold Threshold for cumulative Dose GAMMA SCOUT w ALERT offers an acoustic alarm when a user programmed threshold for cumulative dose is exceeded e Ticker The user can set an acoustic ticker which activates with each gamma pulse detected To save battery resources the signal shuts down after ten minutes and must be restarted On devices with rechargeable batteries see GAMMA SCOUT RECHARGEABLE the ticker will not shut down GAMMA SCOUT ONLINE REAL TIME with the functions of the ALERT model e Used in Measurement Stations GAMMA SCOUT sends detected pulses in real time and at specific time intervals adjustable within certain limits via USB port to the connected PC GAMMA SCOUT RECHARGEABLE with the functions of the ALERT model e Rechargeable power supply charged via USB power supply unit or PC GAMMA SCOUT Summary Operating Conditions Technical Notes Working with Radioactivity Legal Limits This device complies with part 15 of the FCC rules US authorities and carries the CE seal TUV tested Operation is subject to the following conditions This device may not cause harmful interference e This device must withstand any incoming interference including signals that may cause unintended malfunction In order to measure all gamma radiation the sensor is not shielded
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