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Summary of Contents for SAPHYMO MiniTRACE CSDF
- Page 1 Manual Type CSDF...
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Page 2: Table Of Contents
0 Contents Contents .......................2 Foreword ......................4 Description ......................5 Display ......................5 Alarm function ....................6 Operation Modes of the MiniTRACE CSDF ..........6 Measurements....................9 2.4.1 Information for your own radiation protection .........9 2.4.2 Examples of natural radionuclides in food and limits for artificial radionuclides in food.....................9... - Page 3 Figure 31: Removing the grid (part 1)..............30 Figure 32: Removing the grid (part 2)..............31 Figure 33: Energy response of the MiniTRACE CSDF (based on Cs-137, with lid closed and GM tube energy compensated)........32 Figure 34: Energy response of the MiniTRACE CSDF (with open lid, NOT energy compensated) ..........32...
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Page 4: Foreword
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1 Foreword Thank you for purchasing the MiniTRACE CSDF contamination and survey meter. In order to gain a better understanding of its functions, please take a little time to read through this instruction manual. -
Page 5: Description
2 Description 2.1 Display The display is composed of a 6-digit 7-segment display for the measurement results as well as a 5-digit alphanumeric display. The MiniTRACE CSDF shows the unit in “cps”, “Bq”, “Bq/cm ”, “µSv/h”, “counts” and Bq/l. Note: The dose rate displayed is energy compensated to the ambient dose rate equivalent (H*(10)). -
Page 6: Alarm Function
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.2 Alarm function One alarm threshold for the MiniTRACE CSDF can be set via software for the following units: Alarm 1: Dose rate mode in µSv/h (default: 20 µSv/h) • Alarm 2: Counts in cps (default: 0, meaning deactivated) •... - Page 7 If you turn on the instrument the last selected operation mode is still activated. The default calibration factors are set for a distance of 3 mm between grid and surface. For more details see Chapter 3. The MiniTRACE CSDF is UNABLE to identify radionuclides! -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 08/2012...
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Page 8: Figure 3: Using The Mode Button To Select An Operation Mode
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- press I-button turn on press mode button press I-button press I-button press I-button unit µS v/h (2 times short) wait 3 sec. alarm on/off ac tiva te Rate mode alarm threshold RAT E mode... -
Page 9: Measurements
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.4 Measurements 2.4.1 Information for your own radiation protection Protect yourself from an unnecessary dose. The easiest way is to reduce the length • of exposure. • Increasing the distance reduces the dose due to the inverse square law. -
Page 10: Measurement Tasks For The Minitrace Csdf
More information can be found at: Japan: http://www.mhlw.go.jp/english/topics/foodsafety/index.html http://www.mhlw.go.jp/english/topics/foodsafety/dl/110318-1.pdf Germany: http://www.bmu.de/atomenergie_sicherheit/doc/47216.php 2.4.3 Measurement tasks for the MiniTRACE CSDF With the MiniTRACE CSDF you choose between the following operation modes: Mode Unit Lid open Lid closed Dose rate H*(10) (Menu RATE) µSv/h... -
Page 11: Figure 5: Display In Dose Rate Mean Mode
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.4.3.1 Ambient dose rate equivalent measurement – H*(10) in µSv/h Select the “RATE” menu by using the mode button. Once “RATE” is displayed, wait 3 seconds; the menu will start automatically. For further details see Figure 3. -
Page 12: Figure 6: Display In Cps Mean Mode
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- pancake detector. With the lid open you can measure α-, β- and γ-radiation. This detector is very sensitive and protected by a grid. Note: All given measurement values are gross values. This means that background values are NOT subtracted. - Page 13 You can assign your own calibration factor for the radionuclide “User” using the software. For further information see the software manual. Note: MiniTRACE CSDF can not determine the radionuclide. Selection of the radionuclide has to be done by the user. 2.4.3.5.2...
- Page 14 The closer you are to the surface, the better the results will be. Be sure not to touch the surface with the MiniTRACE CSDF. In the event of contact, the MiniTRACE CSDF could be contaminated and the contamination could be spread.
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Page 15: Figure 7: Measuring Device For Wipe Tests
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- either wet or dry surfaces. Afterwards the activity on wipe test smears is measured with MiniTRACE CSDF. The surface contamination is measured in “Bq/cm²“ and it is proportional to the net counting rate and a calibration factor. The calibration factor is a function of the instrument's efficiency for the specified radionuclide, the area wiped, the source efficiency and the removal factor. -
Page 16: Figure 8: Wipe Test Measurement
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Figure 8: Wipe test measurement Calculation of the final result: value measured value measured value − total back gound To determine the background value put the CSDF in the measurement holder. It Note: is not necessary to use a new (uncontaminated) wipe test sample; put only the measurement cup in the measurement holder. -
Page 17: Figure 9: Counting Up Measurement
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.4.3.6 Count up mode This mode To work with this menu select “CNTUP” mode. For further details see Figure 3. is the summation of pulses at a predetermined time interval. The following time intervals are available: 60, 120, 300, 600 (10 min.), 1800 (30 min.) and 3600 (60 min.) seconds. -
Page 18: Figure 10: Food Measurement Flow Chart
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- end off food measurement no control measurement in the memory or last measurement is > 300 nSv/h saved control measurem ent in the memory is OK press mode button dose rate < 300 nSv/h... -
Page 19: Figure 12: Display For Background (Control) Measurement In The "Food" Menu
The calibration is only valid with the supplied measuring cup and holder. Otherwise the result can be incorrect. Measurement steps in detail: Step 1: Determination of the background radiation (control measurement) Place the empty cup and the MiniTRACE CSDF in the measurement device. • Go to the “Food” menu. •... -
Page 20: Figure 14: Display In The "Food" Menu
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Step 2: Food measurement The measurement result is always given in “Bq/L”. For a result in “Bq/kg” you will need to carry out two steps: 1. Weigh the food. To do so, subtract the weight of the measurement cup (0.148 kg) from the total weight. -
Page 21: Accessories For Measuring
3 times to go back to the main menu. 2.5 Accessories for measuring MiniTRACE CSDF can be used for contamination measurements such as wipe tests or food measurements or as a survey meter. It is also possible to test the instrument with a test source. -
Page 22: Figure 16: Food Measurement Kit (See Chapter 2.4.3.7)
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Figure 16: Food measurement kit (See Chapter 2.4.3.7) For measurement of the ambient dose rate equivalent no additional accessories are necessary. Figure 17: Accessories for the wipe test (See Chapter 2.4.3.5.4) Figure 18: Belt case... -
Page 23: Figure 19: Transparent Plastic Pouch
If this is not possible, you can also protect the instrument by using an airtight case, such as our transportation box. Saphymo GmbH takes no responsibility for any damage that may occur due to failure to comply with this warning. -
Page 24: Figure 21: Peli Box
We recommend that for transport in general, as well as for storage, the instrument be protected from damage using our Peli Box. Saphymo GmbH takes no responsibility for any damage that may occur due to failure to comply with this warning. -
Page 25: Minitrace Function Test Using A Small Test Source
A small test source is fixed in a sample, see Figure 23. The test source consists of: Radionuclide: U-238 • Activity: 25 Bq (+/- 20%) • Half life time: 4,468 10 • Dose rate of the MiniTRACE CSDF, positioned in the measurement device: approx • 1 µSv/h. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 08/2012 Page 25... -
Page 26: Figure 25: Dose Rate Of The Test Source
Figure 25: Dose rate of the test source To use the test source to check the MiniTRACE, do the following: 1. Open the lid and position the MiniTRACE CSDF in the measurement device. 2. Select the “CMEAN” menu (mean value of the count rate). -
Page 27: The Design Of The Instrument
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Note: How often this needs to be carried out depends on your national law and your requirements. In Germany it should be every six months. You will also have to carry out this procedure if you would like to recalibrate your Mini- TRACE. -
Page 28: Protective Rubber Casing
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2.7 Protective rubber casing Please note that due to the feet of the protective rubber casing, the distance between the counter and the surface to be measured may be increased by approximately 2 mm. This can influence the precision of the measurement result. -
Page 29: Standard Calibration For Co-60 And Cs-137
For calibration, the Co-60 source is positioned exactly 3 mm away from the grid. Additionally, Cs-137 radiation exposure is also carried out on the MiniTRACE CSDF to calcu- late the calibration factor for the ambient dose rate equivalent. For more information see the calibration certificate. -
Page 30: Maintenance And Care
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4 Maintenance and care 4.1 Changing the batteries Before changing the batteries, turn off the instrument. To change the batteries, open the battery compartment on the back of the case. Figure 30: Changing the batteries Now the batteries (type: MN 1500, LR6, AA) can be replaced. -
Page 31: Cleaning The Case
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Once the screws have been loosened, the grid and lid can be removed together and cleaned without danger or difficulty. To screw the grid back on, keep the lid closed to protect the counter tube. -
Page 32: Figure 33: Energy Response Of The Minitrace Csdf (Based On Cs-137, With Lid Closed And Gm Tube Energy Compensated)
Calibration values and technical data are only valid when the protective rubber casing is not in use. 1000 [keV] Figure 33: Energy response of the MiniTRACE CSDF (based on Cs-137, with lid closed and GM tube energy compensated) Relative Count rate... -
Page 33: Calibration Factors And Efficiency
0.240 4.19 Table 7: Calibration factors and efficiency MiniTRACE CSDF based on ISO 7503-1 Note: For the 4 π calibration and for calibration based on ISO 7503-1 an individual “radionuclide” can be set by the user via the MiniTRACE software. Its name is “USER”. -
Page 34: Minitrace User Software
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5 MiniTRACE user software The MiniTRACE user software lets you read and show the status of the MiniTRACE, set alarm thresholds and carry out calibration. There is a separate manual describing how to install and use the MiniTRACE user software (also called 'Communication Module for MiniTRACE'). -
Page 35: Warranty Information
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 6 Warranty information 12 months from date of delivery, not applicable in case of mechanical defects. If damage occurs during initial transport, this must be claimed immediately after receipt together with a picture. The costs for shipping the instrument to the manufacturer are carried by the customer, return shipping charges are covered by the manufacturer. -
Page 36: Appendix
Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 7 Appendix 7.1 DKD certificate for the Co-60 radiation emitter -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Page 36 08/2012... - Page 37 Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 08/2012 Page 37...
- Page 38 Instruction Manual for MiniTRACE CSDF -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Top view of reference emitter D: Active diameter = 45 mm Total size: Ø 50 mm x 3 mm Cross-section of the reference emitter 1. Imprint 2. Eloxided aluminum foil Thickness of the active coating: about 5 µm 3.
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