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19/30361999 DC BS EN IEC 63121. Radiation protection instrumentation. Vehicle-mounted mobile systems for the detection of illicit trafficking of radioactive materials, 2019
- 30361999-NC [Go to Page]
- 30361999
- DPC NCPDF page 2
- 45B_920e_CDV [Go to Page]
- 1 Scope
- 2 Normative references
- 3 Terms and definitions, abbreviations and symbols, quantities and units [Go to Page]
- 3.1 Terms and definitions [Go to Page]
- 3.1.1
- 3.1.3
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.1.11
- 3.1.12
- 3.1.13
- 3.1.14
- 3.2 Abbreviations and symbols [Go to Page]
- 3.2.1 CISPR
- Comité International Spécial des Perturbations Radioélectriques (Special International Committee on Radio Interference)
- 3.2.2 COV
- 3.2.3 DU
- 3.2.4 ESD
- electrostatic discharge
- 3.2.5 HDPE
- 3.2.6 HEU
- 3.2.7 ICRU
- 3.2.8 NORM
- 3.2.9 PMMA
- 3.2.10 RF
- 3.2.11 RGPu
- 3.2.12 SNM
- 3.2.13 WGPu
- 3.3 Quantities and units
- 4 General test procedure [Go to Page]
- 4.1 General
- 4.2 Standard test conditions
- 4.3 Uncertainties
- 4.4 Statistical fluctuations
- 4.5 Background radiation during testing
- 4.6 Operating parameters and set up
- 4.7 Setup and test parameters
- Figure 1: Reference point diagram for a two-sided mobile system (top down view)
- 4.8 Dynamic testing
- 4.9 Static testing
- 4.10 Radiation sources
- 4.11 Special nuclear material (SNM) and depleted uranium (DU) sources
- 4.12 Functionality test and test acceptance range requirements [Go to Page]
- 4.12.1 General requirements
- 4.12.2 Pre-test measurements
- 4.12.3 Intermediate-test measurements
- 4.12.4 Post-test measurements
- 4.12.5 Acceptance criteria
- 5 General requirements [Go to Page]
- 5.1 General characteristics
- 5.2 Physical configuration
- 5.3 Data storage and data files [Go to Page]
- 5.3.1 Requirements
- 5.3.2 Method of test
- 5.4 Communications protocol [Go to Page]
- 5.4.1 Requirements
- 5.4.2 Method of test
- 5.5 Indication and alarm features [Go to Page]
- 5.5.1 Requirements
- 5.5.2 Method of test
- 5.6 Markings [Go to Page]
- 5.6.1 Requirements
- 5.6.2 Method of test
- 5.7 Power supply [Go to Page]
- 5.7.1 Requirements
- 5.7.2 Method of test
- 5.8 Effective range of measurement [Go to Page]
- 5.8.1 Requirements
- 5.8.2 Method of test
- 5.9 User interface [Go to Page]
- 5.9.1 User accessible controls requirements
- 5.9.2 Supervisory-user accessible indications and functions requirements
- 5.9.3 User display and visual indicators requirements
- 5.9.4 Warning indicators requirements
- 5.9.5 Method of test
- 6 Radiological tests [Go to Page]
- 6.1 False alarm test [Go to Page]
- 6.1.1 Requirements
- 6.1.2 Method of test
- 6.2 Gamma radiation alarm [Go to Page]
- 6.2.1 Requirements
- 6.2.2 Method of test
- 6.3 Neutron radiation alarm [Go to Page]
- 6.3.1 Requirements
- 6.3.2 Method of test
- 6.4 Over-range indication [Go to Page]
- 6.4.1 Requirements
- 6.4.2 Method of test
- 6.5 Neutron indication in the presence of photons [Go to Page]
- 6.5.1 Requirements
- 6.5.2 Method of test
- 6.6 Slowly approaching source—monitor is stationary during use
- 6.6.1 Requirements
- The monitor shall indicate when the ambient radiation background has increased to a level that is too high for it to operate as required. This may occur, for example, as a result of a slowly approaching radiation source.
- 6.6.2 Method of test
- 6.7 Background effects—monitor is mobile during use
- 6.7
- 6.7.1 Requirements and background information
- Mobile monitors shall function normally when exposed to changing background situations that may be encountered during normal use. The monitor shall provide a warning indication when a change in background is large enough to cause a substantial change ...
- NOTE To help ensure that the following test method was based on realistic field conditions, measurements were obtained using different detection technologies in urban, suburban, and rural areas. The measurements were obtained with each system mounted ...
- 6.7.2 Method of test
- c) Background change only
- 1. With the monitor operating as it would during use (e.g., scanning), increase the count rate to the level determined in step a) using the artificially-increased-background source over a time period of 30 seconds by either moving the monitor or the s...
- 2. Allow the monitor to remain in the artificially-increased background for 2 min.
- 3. Following the stabilization period, reduce the background over a time period of 30 seconds to the normal background area count rate.
- 4. Repeat steps 1 through 3 for a total of 3 trials. During the process, no alarms should be activated and no identification of radionuclides, other than those used for the artificially-increased-background source, should occur. The monitor may provid...
- d) Background change with additional source
- 5. With the monitor operating as it would during use, increase the count rate to the level determined in step a) over a time period of 30 seconds by either moving the monitor or the artificially-increased-background source.
- 6. Midway through the 30 s background change, perform a dynamic test (1 trial) using 137Cs through the middle of the detection zone (i.e., 2 m from the ground) in accordance with 4.8 and 6.2 and record the results.
- 7. Allow the monitor to remain in the artificial background for 2 min.
- 8. At the end of the two minute period and without reducing the background, perform a dynamic test (1 trial) using 137Cs through the middle of the detection zone (i.e., 2 m from the ground) in accordance with 4.8 and 6.2 and record the results.
- 9. Following the test, reduce the background over a time period of 30 seconds to the normal background area count rate.
- 10. Midway through the 30 s background change, perform a dynamic test (1 trial) using 137Cs through the middle of the detection zone (i.e., 2 m from the ground) in accordance with 4.8 and 6.2 and record the results.
- 11. Repeat steps 5 through 10 for a total of 3 trials. The monitor shall alarm for each trial when exposed to the 137Cs source.
- 6.8 Radionuclide identification—when provided [Go to Page]
- 6.8.1 Radionuclide categorisation [Go to Page]
- 6.8.1.1 Requirements
- 6.8.1.2 Method of test
- 6.8.2 Single radionuclide identification [Go to Page]
- 6.8.2.1 Requirements
- 6.8.2.2 Method of test
- 6.8.3 Simultaneous radionuclide identification [Go to Page]
- 6.8.3.1 Requirements
- 6.8.3.2 Method of test
- 6.8.4 Radionuclide not in library [Go to Page]
- 6.8.4.1 Requirements
- 6.8.4.2 Method of test
- 7 Climatic requirements [Go to Page]
- 7.1 General
- 7.2 Ambient temperature [Go to Page]
- 7.2.1 Requirements
- 7.2.2 Method of test
- 7.3 Relative humidity [Go to Page]
- 7.3.1 Requirements
- 7.3.2 Method of test
- 7.4 Dust and moisture protection [Go to Page]
- 7.4.1 Requirements
- 7.4.2 Method of test—dust
- 7.4.3 Method of test—moisture
- 8 Mechanical requirements [Go to Page]
- 8.1 Microphonics/impact [Go to Page]
- 8.1.1 Requirements
- 8.1.2 Method of test
- 8.2 Vibration [Go to Page]
- 8.2.1 Requirements
- 8.2.2 Method of test
- 9 Electrical and electromagnetic requirements [Go to Page]
- 9.1 Radio frequency (RF) [Go to Page]
- 9.1.1 Requirements
- 9.1.2 Method of test
- 9.2 Radiated emissions [Go to Page]
- 9.2.1 Requirements
- 9.2.2 Method of test
- 9.3 Battery lifetime [Go to Page]
- 9.3.1 Requirements
- 9.3.2 Method of test
- 9.4 Electrostatic discharge (ESD) [Go to Page]
- 9.4.1 Requirements
- 9.4.2 Method of test
- 10 Documentation [Go to Page]
- 10.1 Report
- 10.2 Operation and maintenance manual [Go to Page]
