ASTM E1035-18(2023)
Standard Practice for Determining Neutron Exposures for Nuclear Reactor Vessel Support Structures

Standard No.

ASTM E1035-18(2023)

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E1035-18(2023)

Scope

1.1 This practice covers procedures for monitoring the neutron radiation exposures experienced by ferritic materials in nuclear reactor vessel support structures located in the vicinity of the active core. This practice includes guidelines for: 1.1.1 Selecting appropriate dosimetric sensor sets and their proper installation in reactor cavities. 1.1.2 Making appropriate neutronics calculations to predict neutron radiation exposures. 1.2 The values stated in SI units are to be regarded as standard; units that are not SI can be found in Terminology E170 and are to be regarded as standard. Any values in parentheses are for information only. 1.3 This practice is applicable to all pressurized water reactors whose vessel supports will experience a lifetime neutron fluence (E > 1 MeV) that exceeds 1 × 1017 neutrons/ cm2 or exceeds 3.0 × 10−4 dpa (1).2 (See Terminology E170.) 1.4 Exposure of vessel support structures by gamma radiation is not included in the scope of this practice, but see the brief discussion of this issue in 3.2. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (For example, (2).) 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E1035-18(2023) Referenced Document

• ASTM E1005 Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance, E 706(IIIA)
• ASTM E1018 Standard Guide for Application of ASTM Evaluated Cross Section Data File, Matrix E 706 (IIB)
• ASTM E170 Standard Terminology Relating to Radiation Measurements and Dosimetry
• ASTM E2956 Standard Guide for Monitoring the Neutron Exposure of LWR Reactor Pressure Vessels*， 2023-09-01 Update
• ASTM E482 Standard Guide for Application of Neutron Transport Methods for Reactor Vessel Surveillance, E706 (IID)
• ASTM E693 Standard Practice for Characterizing Neutron Exposures in Iron and Low Alloy Steels in Terms of Displacements Per Atom (DPA), E706(ID)
• ASTM E844 Standard Guide for Sensor Set Design and Irradiation for Reactor Surveillance, E 706(IIC)
• ASTM E854 Standard Test Method for Application and Analysis of Solid State Track Recorder (SSTR) Monitors for Reactor Surveillance, E706(IIIB)
• ASTM E910 Standard Test Method for Application and Analysis of Helium Accumulation Fluence Monitors for Reactor Vessel Surveillance, E706 (IIIC)
• ASTM E944 Standard Guide for Application of Neutron Spectrum Adjustment Methods in Reactor Surveillance, (IIA)

ASTM E1035-18(2023) history

• 2023 ASTM E1035-18(2023) Standard Practice for Determining Neutron Exposures for Nuclear Reactor Vessel Support Structures
• 2018 ASTM E1035-18 Standard Practice for Determining Neutron Exposures for Nuclear Reactor Vessel Support Structures
• 2013 ASTM E1035-13 Standard Practice for Determining Neutron Exposures for Nuclear Reactor Vessel Support Structures
• 2008 ASTM E1035-08 Standard Practice for Determining NeutronExposures for Nuclear Reactor Vessel Support Structures
• 2002 ASTM E1035-02 Standard Practice for Determining NeutronExposures for Nuclear Reactor Vessel Support Structures
• 1985 ASTM E1035-85(1996) Standard Practice for Determining Radiation Exposures for Nuclear Reactor Vessel Support Structures
• 1990 ASTM E1035-85(1990) Standard Practice for Determining Radiation Exposures for Nuclear Reactor Vessel Support Structures