NF ISO 4037-4
X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 4 : calibration of area and personal dosimeters in low energy X reference radiation fields
ISO 4037-4:2004 gives guidelines on additional aspects of the characterization of low energy photon radiations. ISO 4037-4:2004 also describes procedures for calibration and determination of the response of area and personal dose(rate)meters as a function of photon energy and angle of incidence. ISO 4037-4:2004 concentrates on the accurate determination of conversion coefficients from air kerma to Hp(10) and H*(10) for the spectra of low energy photon radiations. As an alternative to the use of conversion coefficients, the direct calibration in terms of these quantities by means of appropriate reference instruments is described.
ISO 4037-4:2004 gives guidelines on additional aspects of the characterization of low energy photon radiations. ISO 4037-4:2004 also describes procedures for calibration and determination of the response of area and personal dose(rate)meters as a function of photon energy and angle of incidence. ISO 4037-4:2004 concentrates on the accurate determination of conversion coefficients from air kerma to Hp(10) and H*(10) for the spectra of low energy photon radiations. As an alternative to the use of conversion coefficients, the direct calibration in terms of these quantities by means of appropriate reference instruments is described.
<p>This document gives guidelines on additional aspects of the characterization of low energy photon radiations and on the procedures for calibration and determination of the response of area and personal dose(rate)meters as a function of photon energy and angle of incidence. This document concentrates on the accurate determination of conversion coefficients from air kerma to <i>H</i><sub>p</sub>(10), <i>H*</i>(10), <i>H</i><sub>p</sub>(3) and <i>H'</i>(3) and for the spectra of low energy photon radiations. As an alternative to the use of conversion coefficients the direct calibration in terms of these quantities by means of appropriate reference instruments is described.</p>
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions2
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4 Symboles (et abréviations)2
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5 Procédures générales d'étalonnage et de détermination de la réponse4
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6 Caractérisation et production des rayonnements X de référence de faible énergie4
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6.1 Généralités4
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6.2 Tension du tube4
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6.3 Uniformité du champ et rayonnement diffusé5
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6.4 Distribution en énergie de la fluence et coefficients de conversion5
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7 Dosimétrie des rayonnements de référence de faible énergie6
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7.1 Généralités6
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7.2 Mise en oeuvre des instruments étalons6
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8 Étalonnage et détermination de la réponse en fonction de l'énergie des photons et de l'angle d'incidence du rayonnement7
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8.1 Généralités7
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8.2 Choix de la méthode d'étalonnage7
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8.3 Étalonnage à l'aide des instruments de référence pour Ka7
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8.4 Étalonnage à l'aide d'instruments de référence de mesure des grandeurs d'équivalent de dose de l'ICRU10
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8.5 Expression des incertitudes12
- Annexe A (normative) Correction de la masse volumique de l'air14
- Annexe B (informative) Mesure des distributions d'impulsions18
- Bibliographie21
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