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ASTM E1026-95

Standard Practice for Using the Fricke Reference Standard Dosimetry System

Automaticky preložený názov:

Štandardné praktiky pre použitie Fricke referenčný štandard dozimetrické systém

NORMA vydaná dňa 1.1.1995

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Informácie o norme:

Označenie normy: ASTM E1026-95
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1995
Kód tovaru: NS-40183
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM E1026-95 :

Keywords:
Absorbed radiation dose, Dosimetry, Energy deposition-ionizing radiation, Fricke dosimeter, Reference standard dosimeter, Threshold detectors-1 to 30 MeV, Water-radioactive analysis, absorbed dose (of ionizing radiation) in water, using Fricke dosimeter,, method,, Ionizing radiation, absorbed dose (of ionizing radiation) in water, usingFricke dosimeter,, method, ICS Number Code 17.240 (Radiation measurements)

Doplňujúce informácie

1. Scope

1.1 This practice covers the preparation, testing and procedure for using the acidic aqueous ferrous ammonium sulfate solution dosimetry system to measure absorbed dose in water when exposed to ionizing radiation. The system consists of a dosimeter and appropriate analytical instrumentation. For simplicity, the system will be referred to as the Fricke system. It is classified as a reference standard dosimeter (see Guide E1261).

1.2 The practice describes the spectrophotometric analysis procedures for the Fricke dosimeter.

1.3 This practice applies only to [gamma] rays, x rays, and high-energy electrons.

1.4 This practice applies provided the following are satisfied:

1.4.1 The absorbed dose range shall be from 40 to 400 Gy (1).

1.4.2 The absorbed dose rate shall not exceed 106 Gy[dot]s -1 (2).

1.4.3 For radioisotope gamma-ray sources, the initial photon energy shall be greater than 0.6 MeV. For bremsstrahlung photons, the initial energy of the electrons used to produce the bremsstrahlung photons shall be equal to or greater than 2 MeV. For electron beams, the initial electron energy shall be greater than 8 MeV (see ICRU Reports 34 and 35).

Note 1-The lower energy limits given are appropriate for a cylindrical dosimeter ampoule of 12 mm diameter. Corrections for dose gradients across an ampoule of that diameter or less are not required. The Fricke system may be used at lower energies by employing thinner (in the beam direction) dosimeter containers (see ICRU Report 35).

1.4.4 The irradiation temperature of the dosimeter should be within the range of 10 to 60°C.

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.

2. Referenced Documents

E178-21	Standard Practice for Dealing With Outlying Observations
E170-23	Standard Terminology Relating to Radiation Measurements and Dosimetry
JCGM 100:2008 GUM 1995	, with minor corrections, Evaluation of measurement data - Guide to the expression of uncertainty in measurement
ICRU Report 64	Dosimetry of High-Energy Photon Beams based on Standards of Absorbed Dose to Water
C912-17(2022)	Standard Practice for Designing a Process for Cleaning Technical Glasses
ISO/IEC 17025	General requirements for the competence of testing and calibration laboratories Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ICRU Report 14	Radiation Dosimetry: X Rays and Gamma Rays with Maximum Photon Energies Between 0.6 and 50 MeV
E275-08(2022)	Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
E666-21	Standard Practice for Calculating Absorbed Dose From Gamma or X Radiation
E668-20	Standard Practice for Application of Thermoluminescence-Dosimetry (TLD) Systems for Determining Absorbed Dose in Radiation-Hardness Testing of Electronic Devices
E925-09(2022)	Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidth does not Exceed 2 nm
E958-13(2021)	Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
51261-13(2020)	Standard Practice for Calibration of Routine Dosimetry Systems for Radiation Processing
51707-15	Standard Guide for Estimation of Measurement Uncertainty in Dosimetry for Radiation Processing
ICRU Report 80	Dosimetry Systems for Use in Radiation Processing
ICRU Report 35	Radiation Dosimetry: Electrons with Initial Energies Between 1 and 50 MeV
52628-20	Standard Practice for Dosimetry in Radiation Processing
ICRU Report 85a	Fundamental Quantities and Units for Ionizing Radiation

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