ASTM E1026-03

Standard Practice for Using the Fricke Reference Standard Dosimetry System

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.

General Information

• Status: Historical
• Publication Date: 09-Jul-2003
• ICS: 17.240 - Radiation measurements
• Technical Committee: E61 - Radiation Processing
• Drafting Committee: E61.02 - Dosimetry Systems

Relations

• Replaces: ASTM E1026-95 - Standard Practice for Using the Fricke Reference Standard Dosimetry System
• Effective Date: 10-Jul-2003
• Replaced By: ASTM E1026-04 - Standard Practice for Using the Fricke Reference Standard Dosimetry System
• Effective Date: 01-Jan-2004
• Referred By: ASTM ISO/ASTM52701-13(2020) - Standard Guide for Performance Characterization of Dosimeters and Dosimetry Systems for Use in Radiation Processing
• Effective Date: 10-Jul-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 1026 – 03
Standard Practice for
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Using the Fricke Reference-Standard Dosimetry System
This standard is issued under the fixed designation E 1026; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 912 Practice for Designing a Process for Cleaning Tech-
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nical Glasses
1.1 This practice covers the procedures for preparation,
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D 1193 Specification for Reagent Water
testing and using the acidic aqueous ferrous ammonium sulfate
E 170 Terminology Relating to Radiation Measurements
solution dosimetry system to measure absorbed dose to water
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and Dosimetry
when exposed to ionizing radiation. The system consists of a
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E 178 Practice for Dealing with Outlying Observations
dosimeter and appropriate analytical instrumentation. The
E 275 Practice for Describing and Measuring Performance
system will be referred to as the Fricke system. It is classified
of Ultraviolet, Visible, and Near Infrared Spectrophotom-
as a reference-standard dosimetry system (see ISO/ASTM
7
eters
51261).
E 666 Practice for Calculating Absorbed Dose from Gamma
1.2 The practice describes the spectrophotometric analysis
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or X-Radiation
procedures for the Fricke dosimeter.
E 668 Practice for Application of Thermoluminescence-
1.3 This practice applies only to gamma rays, x-rays
Dosimetry (TLD) Systems for Determining Absorbed Dose
(bremsstrahlung), and high-energy electrons.
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in Radiation-Hardness Testing of Electronic Devices
1.4 This practice applies provided the following are satis-
E 925 Practice for the Periodic Calibration of Narrow Band-
fied:
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Pass Spectrophotometers
1.4.1 The absorbed dose range shall be from 20 to 400 Gy
2
E 958 Practice for Measuring Practical Spectral Bandwidth
(1).
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6 −1
of Ultraviolet-Visible Spectrophotometers
1.4.2 The absorbed-dose rate does not exceed 10 Gy·s (2).
2.2 ISO/ASTM Standards:
1.4.3 For radioisotope gamma-ray sources, the initial pho-
ISO/ASTM 51205 Method for Using the Ceric-Cerous Sul-
ton energy is greater than 0.6 MeV. For x-rays (bremsstrahl-
5
fate Dosimetry System
ung), the initial energy of the electrons used to produce the
ISO/ASTM 51261 Guide for Selection and Calibration of
photons is equal to or greater than 2 MeV. For electron beams,
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Dosimetry Systems for Radiation Processing
the initial electron energy is greater than 8 MeV (see ICRU
ISO/ASTM 51707 Estimating Uncertainties in Dosimetry
Reports 34 and 35).
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for Radiation Processing
NOTE 1—The lower energy limits given are appropriate for a cylindri-
2.3 International Commission on Radiation Units and
cal dosimeter ampoule of 12-mm outside diameter. Corrections for dose
Measurements (ICRU) Reports:
gradients across an ampoule of that diameter or less are not required.
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ICRU Report 34 The Dosimetry of Pulsed Radiation
1.4.4 The irradiation temperature of the dosimeter should be
ICRU Report 35 Radiation Dosimetry: Electrons with Ini-
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within the range of 10 to 60°C.
tial Energies Between 1 and 50 MeV
1.5 This standard does not purport to address all of the
ICRU Report 60 Fundamental Quantities and Units for
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safety concerns, if any, associated with its use. It is the
Ionizing Radiation
responsibility of the user of this standard to establish appro-
ICRU Report 64 Dosimetry of High-Energy Photon Beams
10
priate safety and health practices and determine the applica-
based on Standards of Absorbed Dose to Water
bility of regulatory limitations prior to use.
2.4 National Research Council Canada (NRCC):
2. Referenced Documents
2.1 ASTM Standards:
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Annual Book of ASTM Standards, Vol 15.02.
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Annual Book of ASTM Standards, Vol 11.01.
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This practice is under the jurisdiction of ASTM Committee E10 on Nuclear Annual Book of ASTM Standards, Vol 12.02.
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Technology and Applications and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 14.02.
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E10.01 on Dosimetry for Radiation Processing. Annual Book of ASTM Standards, Vol 03.05.
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Current edition approved July 10, 2003. Published September 2003. Originally Annual Book of ASTM Standards, Vol 14.01.
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approved in 1984. Last previous edition approved in 1995 as E 1026 – 95. Annual Book of ASTM Standards, Vol 03.06.
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The boldface numbers that appear in parentheses refer to a list of references at Available from the International Commission on Radiation Units and Mea-
the end of this practice. surements (ICRU), 7910 Woodmont Ave., Suite 800, Bethesda, MD 20814.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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