BS ISO 4037-1:2019
$198.66
Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy – Radiation characteristics and production methods
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 56 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope |
| 11 | 2 Normative references 3 Terms and definitions |
| 14 | 4 Continuous reference filtered X radiation 4.1 General 4.1.1 Realisation of reference radiation fields |
| 15 | 4.1.2 Basis of conversion coefficients 4.1.3 Radiation quality |
| 16 | 4.1.4 Choice of reference radiation |
| 21 | 4.2 Conditions and methods for producing reference X radiation 4.2.1 Characteristics of the high voltage generator |
| 22 | 4.2.2 Tube potential and protective resistor |
| 23 | 4.2.3 Filtration |
| 27 | 4.2.4 Limitations concerning matched fields |
| 28 | 4.2.5 X radiation shutter 4.2.6 Beam aperture 4.3 Field uniformity and scattered radiation 4.3.1 Field diameter 4.3.2 Field uniformity 4.3.3 Scattered radiation |
| 29 | 4.4 Summary of the requirements for reference X radiation fields 4.5 Validation of reference X radiation 4.5.1 General |
| 30 | 4.5.2 Criteria for validation by HVL determination |
| 31 | 4.5.3 Apparatus for HVL measurement |
| 32 | 4.5.4 HVL measurement procedure 4.5.5 Criteria for validation by dosimetry 4.5.6 Criteria for validation by spectrometry |
| 33 | 5 Gamma radiation emitted by radionuclides 5.1 General 5.2 Radionuclides used for the production of gamma radiation 5.3 Specification of radiation sources 5.3.1 Sources |
| 34 | 5.3.2 Encapsulation 5.4 Irradiation facility and influence of scattered radiation 5.4.1 General requirements 5.4.2 Collimated geometry installation |
| 35 | 5.4.3 Variation of air kerma rate by means of lead attenuators 5.5 Checking installation conformity |
| 36 | 6 Photon radiation with energies between 4 MeV and 9 MeV 6.1 General 6.2 Production of reference radiation 6.2.1 General 6.2.2 Photon reference radiation from de-excitation of 16O in the 19F(p, αγ)16O reaction |
| 38 | 6.2.3 Photon reference radiation from de-excitation of 12C |
| 39 | 6.3 Beam diameter and uniformity of radiation field 6.4 Contamination of photon reference radiation 6.4.1 General |
| 40 | 6.4.2 Contamination of reference radiation common to all methods of production of reference radiation 6.4.3 Additional contamination of accelerator produced reference radiation from de-excitation of 16O |
| 41 | Annex A (informative) Fluorescence X radiation with not enough information for matched or characterized fields |
| 48 | Annex B (informative) Gamma radiation emitted by 241Am radionuclide with not enough information for matched or characterized fields |
| 50 | Annex C (informative) Continuous filtered X radiation based on the quality index |
| 53 | Bibliography |
