ASTM E1026-03

Standard Practice for Using the Fricke Reference Standard Dosimetry System

STANDARD published on 10.7.2003

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The information about the standard:

Designation standards: ASTM E1026-03
Note: WITHDRAWN
Publication date standards: 10.7.2003
SKU: NS-40179
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM E1026-03 :

Keywords:

absorbed dose, dosimetry, ferrous ammonium sulfate dosimeter, ferrous sulfate dosimeter, Fricke dosimeter, reference-standard dosimeter, transfer-standard dosimeter, ICS Number Code 17.240 (Radiation measurements)

Additional information

1. Scope

1.1 This practice covers the procedures for preparation, testing and using the acidic aqueous ferrous ammonium sulfate solution dosimetry system to measure absorbed dose to water when exposed to ionizing radiation. The system consists of a dosimeter and appropriate analytical instrumentation. The system will be referred to as the Fricke system. It is classified as a reference-standard dosimetry system (see ISO/ASTM 51261).

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

1.3 This practice applies only to gamma rays, x-rays (bremsstrahlung), and high-energy electrons.

1.4 This practice applies provided the following are satisfied:

1.4.1 The absorbed dose range shall be from 20 to 400 Gy (1.

1.4.2 The absorbed-dose rate does not exceed 10 ⁶ Gys¹ (2).

1.4.3 For radioisotope gamma-ray sources, the initial photon energy is greater than 0.6 MeV. For x-rays (bremsstrahlung), the initial energy of the electrons used to produce the photons is equal to or greater than 2 MeV. For electron beams, the initial electron energy is 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 outside diameter. Corrections for dose gradients across an ampoule of that diameter or less are not required.

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
E170-24	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)e1	Standard Practice for Calibration of Routine Dosimetry Systems for Radiation Processing (Includes all amendments and changes 11/25/2024).
51707-22	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
52628-19	Standard Practice for Dosimetry in Radiation Processing
ICRU Report 85a	Fundamental Quantities and Units for Ionizing Radiation

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