IEC 62533 pdf download – Radiation protection instrumentation – Highly sensitive hand-held instruments for photon detection of radioactive material

IEC 62533 pdf download – Radiation protection instrumentation – Highly sensitive hand-held instruments for photon detection of radioactive material
1 Scope and object
This International Standard applies to hand-held instruments used for the detection andlocalization of radioactive photon emitting materials. These instruments are highly sensitivemeaning that they are designed to detect slight variations in the range of usual photonbackground caused mainly by illicit trafficking or inadvertent movement of radioactivematerial.Compared to pocket devices (see lEC 62401), this highly sensitive instrument allowsthe scanning of larger volume items such as vehicles or containers. They may also be used infixed or temporarily fixed unattended mode to monitor check points or critical areas.
These instruments also provide an indication of the ambient dose equivalent rate from photonradiation. However,this standard does not apply to the performance of radiation protectioninstrumentation which is covered in lEC 60846-1 and lEC 61526.
These instruments may provide additional functions as described below without including allfeatures of specialized portable identification devices as defined by IEC 62327:
rejecting natural background variation encountered when used in movement;
sorting alarms of interest from naturally occurring radioactive material(NORM) or medicalradionuclides originated alarms;
. provide source categorization data (including limited photon spectra) to a remote location.The object of this standard is to establish performance requirements including physicalcharacteristics，general test conditions,radiation characteristics，electrical safety，andenvironmental conditions. This standard provides examples of acceptable test methods todetermine if an instrument meets the requirements of this standard. The results of testsperformed provide information to users on the capability of radiation detection instruments forreliably detecting photon sources.
Obtaining operating performance that meets or exceeds the specifications as stated in thisstandard depends upon properly establishing appropriate operating parameters，maintainingcalibration，implementing a ‘suitable response testing and maintenance program，providingproper training for operating personnel and developing operating procedures that address theinstrument limitations and capabilities.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 60050-393:2003，International Electrotechnical Vocabulary (IEV) – Part 393: Nuclearinstrumentation – Physical phenomena and basic concepts
IEC 60050-394:2007,International Electrotechnical Vocabulary (IEV) – Part 394: NuclearInstrumentation – Instruments,systems, equipment and detectors
IEC 60068-2-75:1997,Environmental testing – Part 2-75: Tests – Test Eh:Hammer tests
IEC 61000-4-2:2008,Electromagnetic compatibility (EMC) – Part 4:Testing and measurementtechniques – Section 2: Electrostatic discharge immunity test.Basic EMC Publication
IEC 61000-4-3:2006,Electromagnetic compatibility(EMC) – Part 4-3: Testing andmeasurement techniques – Radiated, radio-frequency,electromagnetic field immunity test
IEC 61000-4-6:2008, Electromagnetic compatibility(EMC) – Part 4-6: Testing andmeasurement techniques – lmmunity to conducted disturbances induced by radio-frequencyfields
ISO 4037-1:1996,X and gamma reference radiation for calibrating dosemeters and doseratemeters and for determining their response as a function of photon energy – Part 1:Radiationcharacteristics and production methods
ISO 4037-2:1997, X and gamma reference radiation for calibrating dosemeters and doseratemeters and for determining their response as a function of photon energy – Part 2: Dosimetryfor radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV
ISO 4037-3:1999,x and gamma reference radiation for calibrating dosemeters and doseratemeters and for determining their response as a function of photon energy – Part 3: Calibrationof area and personal dosemeters and the measurement of their response as a function ofenergy and angle of incidence
lnternational Bureau of Weights and Measures: The international System of Units (Sl),8thedition, 2006
3 Terms, definitions, abbreviations, quantities and units3.1 Terms and definitions
For the purposes of this document, the following terms and definitions, as well as those givenin lEC 6o050-393 and lEC 60050-394 apply.
3.1.1
A-weighted sound level
the frequency weighting of an acoustic spectrum according to a standardized frequencyresponse curve based on the frequency response of the human ear
3.1.2
alarm
an audible，visual，or other signal activated when the instrument reading exceeds a presetvalue or falls outside of a preset range
[IEV 393-18-03,modified]
3.1.3
ambient dose equivalent,Hx(10)
dose equivalent at a point in a radiation field，produced by the corresponding aligned andexpanded field, in the iCRU sphere at a depth of 10 mm, on the radius opposing the directionof the aligned field
[ICRU Report 39]