GS Handbuch_E-END.indd - GAMMA
Contents
1. 10 8 17 14 14 14 15 2 6 12 5 17 2 3 16 13 13 M Measuring time setting Memory capacity Memory clearing Microsievert 0 ONLINE Model P Power consumption Pulse counting Pulse rate measuring R Ray selection switch Ray type measuring Reset button Rem S Service T Technical data Ticker Time Time setting TOOLBOX software U USB port xz Delete AI Delete Keywords 16 17 2 10 9 9 3 14 15 14 18 12 11 h GAMMA SCOUT Measures radioactivity easily and reliably State July 2008 Dr Mirow GAMMA SCOUT GmbH amp Co KG P O Box 1346 Abtsweg 15 D 69198 Schriesheim Fax 49 0 62 20 66 40 drmirow gamma scout com www gamma scout com Notice We accept all returns for recycling2. Dose rate uSv h from pulse rate is a non linear relation Instead of an approximation by a constant factor the conversion of the data is realized with a non linear calculation within GAMMA SCOUT e Tested Precision Each GAMMA SCOUT radiation meter is subjected to a final test supervised by the institute of radiation protection of a government controlled university of applied technology e Dose Rate and Dose GAMMA SCOUT can be used as an cumulative dose meter as well e Change of Sievert to Rem The dose rate may be displayed in Sievert or Rem e Permanent Operation The GAMMA SCOUTS is monitoring the radiation day and night and is log ging the data for later download Due to sophisticated electronics the battery is lasting for years e Data Storage GAMMA SCOUT stores all registered pulses in its internal memory and keeps them ready for you to use when desired e Certification GAMMA SCOUT has been tested by TUV German Technical Control Board for device safety It meets all European CE standards as well as the FCC 15 standard of the USA GAMMA SCOUT may be carried on aircraft GAMMA SCOUT w ALERT e Threshold for Dose Rate This model features an audible alert when radiation level exceeds a user programmed threshold e Threshold for cumulative Dose GAMMA SCOUT w ALERT can give an acoustic alarm when a user programmed threshold for the cumulative dose is exceeded e Ticker The user can set on an acoustic ti
3. DEL Set time 0 blinking Alarm icon 0 mM Su blinking 0 Increase Dose meter stopped A Value 0 Enter Enter Enter threshold p ema ao a Set threshold Sore RUN Start dose meter pa KA Y Decrease 12 O O e GAMMA SCOUT Log Setting GAMMA SCOUT automatically logs the number of pulses measured and stores this data in its internal memory This data can be read and processed by a personal computer The logging process is factory set so that GAMMA SCOUT will accumulate the pulses each week storing them as weekly values On this basis the capacity of the memory is sufficient to log the weekly values over a period of 10 years As the following table shows you can also set shorter logging intervals with corresponding reductions in the storage capacity Logging interval Display Storage capacity Memory 1 week 7d gt 10 years 893 values 1 day 1d approx two years 768 values 1 hour th four weeks 768 values 10 minutes 10 min approx five days 768 values 1 minute 1 min twelve hours 768 values Data log setting e Press the button to switch to log mode The display shows the log symbol E Briefly the barchart will appear in addition indicating how much log memory is still available Each bar equals 4 of memory e By pressing the A button you select more frequent logging and consequently shorter logging intervals e By pressing the 9 button you select less frequent logging and consequ
4. The set level is displayed The 4 button increases the button decreases the threshold The new value is displayed blinking The lowest possible value is 1 0 uSv h The step change is 1 0 uSv h The maximum possible alert level is 80 uSv h Press the lt button to save the new selected level Counting of the cumulative dose GAMMA SCOUT Display and reset of the dose cumulative dose When the cumulative dose meter is running in the background there is displayed the symbol in the window The dose is displayed X XX mSv milli Sv Values of less than 0 01 mSv display 0 00 mSv Start stop restart and deleting of the dose display follow the chart below Setting of the threshold for the dose see chart as well Return after Dose meter runs x seconds 1 Enter Display of Enter k Standard mode i gt dose Sum Time of dose Alarm off par pan E Stop blinking Programming the INE alert level of the dose Min 5 mSv Stop dose meter Step 5 mSv SUM switched off Max 50 mSv Dose meter stopped Value gt 0 i Enter Enter Start dose meter Displ w Pi H RUN M e SUM switched on Display GO e Enter Set dose 0
5. the button will switch on the ticker and the symbol speaker is displayed In case the ticker had been switched on already the double click would have displayed the word Off Using the button would have switched off the ticker and the displayed speaker will disappear With the ticker switched on GAMMA SCOUT is making a beep for each pulse detected Increa sing radiation therefore will shift the single beeps to a growing cascade The beeps are using 1000 times more power than the monitoring operation Therefore we switch off the ticker internally after 10 minutes of use If the ticker feature is used once per day the power consumption still is in the limits of the long lasting battery More ticker use and this is filed will cause a maintenance fee in case of battery change 10 O O e GAMMA SCOUT w ALERT Alarm Threshold Exceeding alert level threshold of the dose rate w ALERT version GAMMA SCOUT w ALERT features an audio beep that sounds when radiation levels exceed a specific user programmed level The default alert level is 5 uSv h Along with the audio alert the display will also show the A icon Erasing the symbol A in the display is done by pressing the button twice Programming the alert level of the dose rate The e button pressed once is for control of the protocol see page 13 A second pressing changes to status alert level programming
6. A GAMMA SCOUT Measures radioactivity easily and reliably Informations about GAMMA SCOUT Guidance of TOOLBOX software processing the data of your GAMMA SCOUT and technical Support at gamma scout com Radiation Detector with USB Port T V FCC 15 C A product of GAMMA SCOUT GmbH 8 Co KG Standard of the USA Control panel GAMMA SCOUT The design below intends to give a first approach to the different features The controlling of the GAMMA SCOUT via easy to read membrane switches makes it quite user friendly 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 SCOUT Reset button USB interface Only for ONLINE Model 1x 2x will say one or two pushes on the button GAMMA SCOUT Content Summary Introduction to GAMMA SCOUT Radiation detector features offered models Side Data Operating conditions technical notes working with radioactivity legal limits CD printed user guide website www gamma scout com Ray Selection Switch Focus on alfa beta gamma rays Radiation Measurement Mode of ope
7. ably and permanently The conversion of pulses per minute to dose rate depends on the level of pulse input We are using four different ratios to approximate this non linear relation Under environmental input about 0 2 uSv h the conversion is 142 pulses minute 1 0 uSv h Indicating current radiation e Pressing the P 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 is a bar diagram on the groundline of the display using symbols as gt 1a stay for more than 1 year until acumulation of the legal maximum of 20 mSv p a 1m less than 1 month for acumulation etc e For to change from mSv to mRem start from mode measure radiation Press button Y and confirm unit with button All data will be displayed in the selected unit Indicating average over the past day from 00 00 until 24 00 e Pressing the button a second time causes the average radiation over the last day midnight to midnight taken from the GAMMA SCOUT clock to be displayed tor a few seconds again in microsievert per hour The H symbol in the display will blink Note that this function is not available for up to 48 hours after first putting the device into
8. andard FCC 15 GAMMA SCOUT GmbH amp Co KG Abtsweg 15 D 69198 Schriesheim Fax 49 0 62 20 66 40 E Mail drmirow gamma scout com October 2007 Right of modification reserved Scientific definitions see www hpa org uk radiation glossary 16 O O e GAMMA SCOUT Physical Term Activity lon dose Energy dose D Equivalent dose H New unit Becquerel Bq 1 Bq 1 s Coulomb kg Gray Gy Sievert Sv Old unit Curie Ci Rontgen R Rad rd Rem rem Technical Data Relation 1 Ci 3 7 10 Bq 1 Bq 2 7 10 Ci 27 pCi 1 R 2 58 104 C kg 1 C kg 3876 R 1 rd 0 01 Gy 1 Gy 100 rd 1 rem 0 01 Sv 1 Sv 100 rem GAMMA SCOUT ONLINE Model GAMMA SCOUT ONLINE Model The ONLINE Model has been designed to transmit data cyclically from the GAMMA SCOUT to a connected USB port of any Personal Computer running Microsoft Windows i More information is to be found on our homepage in the internet www gamma scout com or within the documentation on the CD directory ONLINE_VERSION ENGLISH 18 O O e GAMMA SCOUT A Alert level B Bar chart Battery change Becquerel c Current radiation D Data download cable Data reading Data storage GAMMA SCOUT Data transfer Date Delete data Dose cumulative Dose equivalent F FCC 15 standard G Geiger M ller counting tube H Helpdesk L Log setting Logging intervals 5 11 5 6 15 16
9. cker beeping with each gamma pulse detected increasing to a cascade in case of growing radiation GAMMA SCOUT ONLINE Model e Cyclical Data Transmission This model has been designed for transmitting data cyclically GAMMA SCOUT Side Data Operating conditions technical notes CD and user s guide This device complies with part 15 of the FCC rules Operation is subject to the following conditions e This device may not cause harmful interference e This device must accept any interference received including interference that may cause undesired operation Please take all the care that is necessary in connection with radioactivity and observe the radiation protection regulations This manual was updated and printed in October 2007 Furthermore the manual is found on the CD and on our website e co WWW gamma scout com as a PDF file for free download The version on our homepage is updated regularly while the CD version and this document are fixed in October 2007 Enclosed is a CD ROM which contains Gamma Toolbox Release 3 30 the data converting software for e Microsoft Windows based Personal Computers working with the operting systems e WIN NT4 0 WIN 2000 2003 WIN XP The software is available in German and English version e Acrobat Reader installation files for Microsoft Windows e USB driver e Installation hints e Manuals in different languages More details support and extensi
10. e The display shows the time according to setting plus the symbol e Press the O button a second time to call the date The display shows the date according to setting plus the symbol Setting the time e First call the time by pressing the button Then press the button to set the hours Both hour digits flash in the display With the Aland buttons set the hours forwards backwards as desired Confirm the set value with the button LI gt ta la Im e Press the button a second time to set the minutes Both minute digits flash in the display With the A and buttons set the minutes forwards backwards as desired Confirm the set value with the button e If 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 With the A and M buttons set the seconds forwards backwards as desired Confirm the set value with the button Setting the date e Press the GO button twice to call the date display See description setting the time You can stop the set ting of the clock at any time by pressing the button For stopping the year setting press the button a fourth time Battery and Power Supply GAMMA SCOUT GAMMA SCOUT is powered by a Lithium Thionyl chloride cell
11. e limit is 6 mSv p a assuming 2000 working hours per year 3 uSv h Category B e Dose rate limit is 20 mSv p a 10 uSv h Category A Natural environment at Heidelberg Germany has a radiation level of about 0 1 0 2 Mikro Sv h Below the digits of the detected dose on the display a bar chart is visualizing how long the user may stay in this environment until he accumulates the x ray load of 20 mSv p a the mentioned upper level for proffessionally X ray exposed people 0 Operating range of GAMMA SCOUT GAMMA SCOUT is used to control x ray impact at home and on the job Very strong x ray load above 1000 uSv h nuclear core conditions cannot be measured with this technique In case of overflowing this upper limit GAMMA SCOUT displays N N N N and sets the A icon into the display Reset the A icon by double pressing the P button Data from overflow status is marked with in the download table GAMMA 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 the sievert unit Advantage If the measuring values are to be integrated into existing processes and procedures or if the measuring process itself is to be demonstrated or checked the pulse counting is helpful GAMMA SCOUT stores the received pulses in its internal memory e Switching on the
12. ently longer logging intervals e By pressing the button you enter the finally selected value of logging interval e You can transfer the logged data to a personal computer at any time and then clear the memory of your GAMMA SCOUT for fresh use The next section gives you detailed information on this subject GAMMA SCOUT automatically prolongs the logging interval to a week as soon as the memory capacity is more than 3 4 full Data Reading and Display TOOLBOX Software GAMMA SCOUT Using the GAMMA SCOUT TOOLBOX software you can transfer the data Gamma Hex Dump which GAMMA SCOUT has logged in it s memory to a personal computer and convert them into list or graphical form for further processing Connect your GAMMA SCOUT with the USB port of your personal computer install the USB driver and press the E button on the GAMMA SCOUT s control panel to set the device into data transfer mode System requirements MS Windows PC with a USB interface GAMMA SCOUT TOOLBOX Software is supporting the following operating Systems at the moment WIN NT 4 0 OWIN 2000 2003 OWIN XP Data download cable The cable between the USB PC interface and the USB Port of the GAMMA SCOUT is in the box Software installation 1 On the CD can be found e The USB driver for OWindows and the GAMMA SCOUT TOOLBOX software e The installation routine see picture below and e The multi language manuals with actual infor
13. mation 2 Installation of the USB driver e Insert the CD ROM to your CD drive e Connect the GAMMA SCOUT with your PC using the attached cable Follow the menu 3 Installation of the TOOLBOX software e Put the CD ROM into your CD drive e The installation routine starts automatically when autostart function is enabled Otherwise start Autorun exe from the CD s root path manually by doubleclick Gamma Scout Toolbox Installer o Z m m 0 o m e ONLINE Software Toolbox Deutsch Software Toolbox English Inst Instruction Handbuch Deutsch Manual English Manuel Francais Manuale ltaliano Manual Castellano Manual Japanese di Inst Acrobat Reader deutsch Inst Acrobat Reader english Bussian Manual 14 O O e GAMMA SCOUT Data Reading and Display TOOLBOX Software Reading the data Due to technical reasons links to the MS Software on your hard disk the reading program cannot be started directly from your CD First the TOOLBOX software must be copied from your CD to your hard disk see previous page installation Connect your GAMMA SCOUT with your PC e Build the connection using the attached cable N Download the data e Start the reading program via toolbox exe Follow the menu Shift to the operation mode Download on the GAMMA SCOUT pressing the button start the download via menu slight delay before the bar chart of the running proce
14. o Counts per second is not exactly the same as activity of the nucleus given in Becquerel We will change the icon on the membrane to cps Indicating the pulse rate Press the 84 button to switch to the pulse rate measuring mode The Esymbol will flash for the duration of measuring After measuring the iJ symbol is steady again Pulse rate measuring gives the average number of pulses per second Since radiation intensity may strongly fluctuate on a short term basis this indication of average rate will of course be the more exact the longer the measuring is done GAMMA SCOUT gives you a first result within a few seconds then automatically prolongs the measuring time up to 4096 seconds in order to produce as exact ah 25d an average value as possible 21a lt ta Im 001 80 Example 1024 pulses after 4096 seconds 0 25 pulses second GAMMA SCOUT Time and Date GAMMA SCOUT has an integrated quartz clock whose display you can activate by pushbutton Time and date are used to register the measured radiation The PC supported software has a feature to synchronize the GAMMA SCOUT date and time with your PC clock The GAMMA SCOUT clock serves to file data Set any time via your PC e Choose the menu Set any time in the TOOLBOX data reading software to set date and time of the GAMMA SCOUT by your choice i e in different time zones Indicating time and date e Press the Q button to call the tim
15. of 2 7 3 7 voltage The device will continue functioning until the cell voltage is down to 2 7 When the voltage drops below this value the battery symbol will appear in the display The stored data should then be read from the internal memory Nevertheless the data will be retained even at total breakdown of voltage and can then be read when the device is serviced Indicating the battery voltage Indicating the battery voltage e Press the El button to have the existing battery voltage indicated The display will show the cell voltage available when the electronic system is under maximum load Battery change The battery is soldered on the circuit board to prevent any data loss In case the user wants to integrate a battery by himself the basic parameters can be restored by pressing the reset button after having changed the battery Reset button In case of a blank display for example because of an exposure to powerful high frequency fields the user may restart the device by pressing the reset button You may find this button in the lower opening of the case besides the USB interface To prevent a touching by error and thus deleting all EEPROM data this button can only be reached from upside on the board Any reset will set the clock on factory standards Attention The reset may delete your filed data Ticker e A double click of the button will display the word On i e the ticker can be switched on now Touching
16. ons please refer to www gamma scout com Ray Selection Switch GAMMA SCOUT Your GAMMA SCOUT is equipped with a Geiger M ller counter tube enabling you to detect not only gamma rays but alpha and beta rays as well With the ray selection switch you can limit the ray types you want to measure e Set the selection to centre position y symbol if you want to detect gamma rays only With the switch in this position an aluminium plate screens the counter tube window against alpha and beta rays e Turn the switch to the left i e counterclockwise to the B y symbols if you want to measure gamma and beta rays but no alpha rays Now an aluminium foil screens the counter tube window against alpha rays e Turn the switch to the right i e clockwise to the B y symbols if you wish to measure all three ray types This switch position opens the counter tube window tor access by the three types of ray For normal measuring place the ray selection switch at center position Alpha and beta rays are limited in range to a few centimetres or metres and can therefore be detected only when very close to the radiation source This also explains why it makes little sense to keep the ray selection switch constantly open an added reason being that the counter tube window may be damaged in this exposed position 1a ta 1m 001 Sv GAMMA SCOUT Radiation Measurement GAMMA SCOUT reports the input of radioactivity fast reli
17. operation Automatic alert level w ALERT version e When exceeding the user pogrammed alert level GAMMA SCOUT generates an audio alert a beep every 2 seconds and displays the blinking Ajicon This icon continues blinking after radiation fall back until the user has deleted it by pressing the button twice O What does a microsievert mean i In physics three types of ionising rays are known alpha beta and gamma rays They differ not only in their physi 1 cal characteristics but also in their effects on humans To make these three ray types comparable in their effects on humans a value has been created which defines the biological effects of rays it is referred to as dose equivalent Whose unit is the sievert called equivalent dose d 1 REM 0 01 Sievert Sv Based on the counted radiation pulses the different components of a radiation mix are converted into a common measure tor the biological effect To reflect this Cs 137 is used Conversion into the dose equivalent refers to the gamma quantum of the Cs 137 radionuclide with a quantum energy of 662 keV Load and Limits GAMMA SCOUT o 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 In case of any close up to these limits the indivduals have to exit their exposure for some time to cool down i e Dose rat
18. pulse count e Press the A button to switch GAMMA SCOUTS to the pulse count mode The display then shows the pulse symbol Counting did not yet start A second pressing of the button 4 will start the counting e 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 Sta ela fm button three times 0 01 80 Sv Sun e Now set the exact value of the desired measuring time using the A and M button e Start measuring by pressing the HH button a second time The pulse symbol flashes in the display during the measuring time e f a measuring time was set the pulse symbol flashes until the end of the measuring time after which it is 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 F button once again The measuring result remains visible in the display by choosing another mode of operation This makes the measuring result disappear Pulse Rate Measuring GAMMA SCOUT In the pulse rate measuring mode the 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 Inf
19. ration Display of instant radiation average of last 24 hours automatic alarm threshold w alert version only what is Micro Sievert Load and Limits Common input and legal limits range of GAMMA SCOUT display Pulse Counting Physics of the GAMMA SCOUT Geiger M ller shift from dose rate mode to pulse counting mode and reverse Pulse Rate Measuring Permanent counting of pulses display pulse rate per time Time and Date Integrated quartz clock display of time adjust the time span of data logging adjust time and date Battery and Power Supply Type of battery display voltage change of battery data reset after battery change power consumption due to frequent ticker use w ALERT Alarm Threshold Exceeding the user programmed threshold of the dose rate Counting of the cumulative dose Display and reset of the dose counter user programming of the alarm threshold for the cumulative dose Log Setting Automatic filing setting the time span for summarizing the pulse to be filed per week day hour minute Data Reading and Display TOOLBOX Software Technical Data GAMMA SCOUT ONLINE Model Keywords 10 ti 12 13 14 15 16 17 18 19 Summary GAMMA SCOUT Features of GAMMA SCOUT Products e Easy Reading One push of a button is enough to start radiation measurement e Large Scale GAMMA SCOUT is calibrated across a wide scale 0 01 up to 50 00 pSv h e Not linear conversion of pulses to rate
20. ss appears File the data or skip the filing Delete the data or not and leave the program Delete data e At the end of the data reading via menu there is the step delete e Outside the reading program it is intended via a button on the GAMMA SCOUT in preparation Technical Data Display Ray detector Ray types Ray selection Recycling Power consumption Memory Housing Dimensions Interference protections Service State GAMMA SCOUT Liquid crystal display LCD 4 digit numeric with dimension quasi analogue logarithmic bar chart Operating mode indicators End window alpha beta gamma detector counting tube according to the Geiger M ller principle Stainless steel housing with neon halogen filling Measuring length 38 1 mm measuring diameter 9 1 mm Mica window 1 5 to 2 mg cm Zero rate 10 pulses per minute with sreening by 3mm Al and and 50mm Pb Operating temperature 20 bis 60 C operating voltage approx 450 V Calibrated scale 0 01 uSv h up to 50 00 uSv h a alpha from 4 MeV B beta from 0 2 MeV y gamma from 0 1 MeV a Bt y without shielding B y Al foil approx 0 1 mm shields off completely Y Al shielding approx 3 mm Shielding off completely and B to 2 MeV weakens y less than 7 based on Cs 137 We recycle cost free returned devices On average less than 10 microamperes 2 Kbyte impact resistant plastic Length 163 mm x width 72 mm x height 30 mm European CE standard US st
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