BS ISO 4037-2:2019
$167.15
Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy – Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 36 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope |
| 10 | 2 Normative references 3 Terms and definitions |
| 11 | 4 Standard instrument 4.1 General 4.2 Calibration of the standard instrument 4.3 Energy dependence of the response of the standard instrument |
| 12 | 5 Conversion from the measured quantity air kerma, Ka, to the required phantom related measuring quantity 5.1 General |
| 14 | 5.2 Determination of conversion coefficients 5.2.1 General 5.2.2 Calculation of conversion coefficients from spectral fluence |
| 15 | 5.3 Validation of reference fields and of listed conversion coefficients using dosimetry |
| 16 | 6 Direct calibration of the reference field in terms of the required phantom related measuring quantity 7 Measurement procedures applicable to ionization chambers 7.1 Geometrical conditions 7.2 Chamber support and stem scatter 7.3 Location and orientation of the standard chamber 7.4 Measurement corrections 7.4.1 General |
| 17 | 7.4.2 Corrections for air temperature, pressure and humidity variation from reference calibration conditions 7.4.3 Corrections for radiation-induced leakage, including ambient radiation |
| 18 | 7.4.4 Incomplete ion collection 7.4.5 Beam non-uniformity 8 Additional procedures and precautions specific to gamma radiation dosimetry using radionuclide sources 8.1 Use of certified source output 8.2 Use of electron equilibrium caps 8.3 Radioactive source decay 8.4 Radionuclide impurities 8.5 Interpolation between calibration positions |
| 19 | 9 Additional procedures and precautions specific to X-radiation dosimetry 9.1 Variation of X-radiation output 9.2 Monitor 9.3 Adjustment of air kerma rate |
| 20 | 10 Dosimetry of reference radiation at photon energies between 4 MeV and 9 MeV 10.1 Dosimetric quantities 10.2 Measurement of the dosimetric quantities 10.2.1 General |
| 21 | 10.2.2 Air kerma (rate) 10.2.3 Phantom related operational quantities H*(10), Hp(10), H'(3) and Hp(3) 10.3 Measurement geometry 10.4 Monitor |
| 22 | 10.5 Determination of air kerma (rate) free-in-air 10.5.1 General 10.5.2 Measurement conditions 10.5.3 Direct measurement with an ionization chamber |
| 25 | 10.5.4 Determination of air kerma (rate) from photon fluence (rate) |
| 26 | 11 Uncertainty of measurement 11.1 General 11.2 Components of uncertainty 11.2.1 General 11.2.2 Uncertainties in the calibration of a secondary standard |
| 27 | 11.2.3 Uncertainties in the measurements of the reference radiation due to the standard instrument and its use 11.3 Statement of uncertainty |
| 28 | Annex A (normative) Technical details of the instruments and their operation |
| 31 | Annex B (informative) Measurement of photon spectra |
| 34 | Bibliography |
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BS ISO 4037-2:2019
Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for…
