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  • ASTM
    ISO/ASTM51607-13 Standard Practice for Use of the Alanine-EPR Dosimetry System
    Edition: 2013
    $103.58
    Unlimited Users per year

Description of ASTM-ISO/ASTM51607 2013

ASTM ISO/ASTM51607-13

Historical Standard: Standard Practice for Use of the Alanine-EPR Dosimetry System




ASTM ISO/ASTM51607

Scope

1.1 This practice covers dosimeter materials, instrumentation, and procedures for using the alanine-EPR dosimetry system for measuring the absorbed dose in the photon and electron radiation processing of materials. The system is based on electron paramagnetic resonance (EPR) spectroscopy of free radicals derived from the amino acid alanine.

1.2 The alanine dosimeter is classified as a type I dosimeter as it is affected by individual influence quantities in a well-defined way that can be expressed in terms of independent correction factors (see ASTM Practice E2628). The alanine dosimeter may be used in either a reference standard dosimetry system or in a routine dosimetry system.

1.3 This document is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing, and describes a means of achieving compliance with the requirements of ASTM E2628 Practice for Dosimetry in Radiation Processing for alanine dosimetry system. It should be read in conjunction with ASTM E2628.

1.4 This practice covers alanine-EPR dosimetry systems for dose measurements under the following conditions:

1.4.1 The absorbed dose range is between 1 and 1.5 × 105Gy.

1.4.2 The absorbed dose rate is up to 102Gy s-1 for continuous radiation fields and up to 3 × 1010Gy s-1 for pulsed radiation fields (1-4).

1.4.3 The radiation energy for photons and electrons is between 0.1 and 30 MeV (1, 2, 5-8).

1.4.4 The irradiation temperature is between 78 °C and + 70 °C (2, 9-12).

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

absorbed dose; alanine dosimetry; dose measurements; dosimeter; dosimetry system; electron beam; electron paramagnetic resonance; electron spin resonance; EPR dosimeter; EPR dosimetry; ESR dosimeter; gamma radiation; ionizing radiation; irradiation; photons; radiation; radiation processing; reference standard dosimeter; X radiation; ICS 17.240


ICS Code

ICS Number Code 17.240 (Radiation measurements)


DOI: 10.1520/ISOASTM51607-13

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