1.1 This practice covers materials description, dosimeterpreparation, instrumentation, and procedures for using thealanine-EPR dosimetry system for measuring the absorbed dose inmaterials irradiated with photons and electrons. The system isbased on electron paramagnetic resonance (EPR) spectroscopy of freeradicals derived from the amino acid alanine. It is classified as areference standard dosimetry system (see ISO/ASTM Guide 51261).
1.2 This practice covers alanine-EPR dosimetry systems for dosemeasurements under the following conditions:
1.2.1 The absorbed dose range is between 1 and 10 5Gy.
1.2.2 The absorbed dose rate is up to 102 Gys1 for continuous radiation fields and up to 5 107 Gy s1 for pulsed radiation fields(1-3).
1.2.3 The radiation energy for photons and electrons is between0.1 and 28 MeV (1, 2, 4).
1.2.4 The irradiation temperature is between -60 and + 90°C(2, 5).
1.3 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.
1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establishappropriate safety and health practices and determine theapplicability of regulatory limitations prior to use.