BS IEC 60462 pdf download

BS IEC 60462 pdf download Nuclear instrumentation — Photomultiplier tubes for scintillation counting — Test procedures
1 Scope and object
This International Standard establishes test procedures for photomultiplier tubes (PMT) for scintillation and Cherenkov detectors.
This standard is applicable to photomultiplier tubes for scintillation and Cherenkov detectors.
Photomultiplier tubes are extensively used in scintillation and Cherenkov counting, both in the detection and analysis of ionizing radiation and for other applications. For such uses, various characteristics are of particular importance and require additional tests to those conducted to measure the general characteristics of PMT.
This has made desirable the establishment of standard test procedures so that measurements of these specific characteristics may have the same significance to all manufacturers and users. The tests described in this standard for PMT to be used in scintillation detectors are supplementary to those tests described in IEC 60306-4, which covers the basic characteristics commonly requiring specification for photomultiplier tubes.
This recommendation is not intended to imply that all tests and procedures described herein are mandatory for every application, but only that those tests carried out on PMT for scintillation and Cherenkov detectors should be performed in accordance with the procedures given in this standard.
2 Normative 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 edition of the referenced document (including any amendments) applies.
IEC 60306-4, Measurement of photosensitive devices – Part 4: Methods of measurement for photomultipliers
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
photomultiplier tube
multiplier phototube
PMT (abbreviation)
vacuum tube consisting of a photocathode and an electron multiplier intended to convert light into an electric signal
[IEC 60050-394:2007, 394-30-1 2]
3.1.2
Cherenkov detector
radiation detector designed to detect relativistic particles, using a medium in which the Cherenkov effect is produced
NOTE The medium is optically coupled to a photosensitive device, either directly or through light guides.
[IEC 60050-394:2007, 394-29-1 7]
3.1.3
scintillation detector
radiation detector consisting of a scintillator that is usually optically coupled to a photosensitive device, either directly or through light guides
NOTE The scintillator consists of a scintillating material in which the ionizing particle produces a burst of luminescence radiation along its path.
[IEC 60050-394:2007, 394-27-01 ]
3.1.4
light guide
optical device designed to transmit light without significant loss
NOTE It may be placed between a scintillator and a photomultiplier tube.
[IEC 60050-394:2007, 394-30-1 5]
3.1.5
dark current (of a photomultiplier tube)
electric current flowing from the anode circuit in the absence of light on the photocathode
[IEC 60050-394:2007, 394-38-1 4]