• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

ASTM E 393 : 2013 : REDLINE

Current

Current

The latest, up-to-date edition.

Standard Test Method for Measuring Reaction Rates by Analysis of Barium-140 From Fission Dosimeters

Available format(s)

PDF

Language(s)

English

Published date

01-06-2013

CONTAINED IN VOL. 12.02, 2015 Specifies two procedures for the measurement of reaction rates by determining the amount of the fission product [140]Ba produced by the non-threshold reactions [235]U(n,f), [241]Am(n,f), and [239]Pu(n,f), and by the threshold reactions [238]U(n,f), [237]Np(n,f), and [232]Th(n,f).

1.1This test method describes two procedures for the measurement of reaction rates by determining the amount of the fission product 140Ba produced by the non-threshold reactions 235U(n,f), 241Am(n,f), and 239Pu(n,f), and by the threshold reactions 238U(n,f), 237Np(n,f), and 232Th(n,f).

1.2These reactions produce many fission products, among which is 140Ba, having a half-life of 12.752 days. 140Ba emits gamma rays of several energies; however, these are not easily detected in the presence of other fission products. Competing activity from other fission products requires that a chemical separation be employed or that the 140Ba activity be determined indirectly by counting its daughter product 140La. This test method describes both procedure (a), the nondestructive determination of 140Ba by the direct counting of 140La several days after irradiation, and procedure (b), the chemical separation of 140Ba and the subsequent counting of 140Ba or its daughter 140 La.

1.3With suitable techniques, fission neutron fluence rates can be measured in the range from 107 n (neutrons) · cm−2 · s−1 to approximately 1015 n · cm−2 · s−1.

1.4The measurement of time-integrated reaction rates with fission dosimeters by 140Ba analysis is limited by the half-life of 140Ba to irradiation times up to about six weeks.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This 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.

Committee
E 10
DocumentType
Redline
Pages
7
PublisherName
American Society for Testing and Materials
Status
Current

ASTM E 704 : 2013 : REDLINE Standard Test Method for Measuring Reaction Rates by Radioactivation of Uranium-238
ASTM E 2005 : 2010 : R2015 Standard Guide for Benchmark Testing of Reactor Dosimetry in Standard and Reference Neutron Fields
ASTM E 261 : 2016 : REDLINE Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
ASTM E 798 : 2016 : REDLINE Standard Practice for Conducting Irradiations at Accelerator-Based Neutron Sources
ASTM E 944 : 2013-01 GUIDE FOR APPLICATION OF NEUTRON SPECTRUM ADJUSTMENT METHODS IN REACTOR SURVEILLANCE
ASTM E 720 : 2016 : REDLINE Standard Guide for Selection and Use of Neutron Sensors for Determining Neutron Spectra Employed in Radiation-Hardness Testing of Electronics
ASTM E 1005 : 2016 : REDLINE Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance
ASTM E 2005:2010 Standard Guide for Benchmark Testing of Reactor Dosimetry in Standard and Reference Neutron Fields
ASTM E 721 : 2016 : REDLINE Standard Guide for Determining Neutron Energy Spectra from Neutron Sensors for Radiation-Hardness Testing of Electronics
ASTM E 1854 : 2013 : REDLINE Standard Practice for Ensuring Test Consistency in Neutron-Induced Displacement Damage of Electronic Parts
ASTM E 763 : 1991 Practice for Calculation of Absorbed Dose From Neutron Irradiation by Application of Threshold-Foil Measurement Data (Withdrawn 1997)

ASTM E 181 : 2017 : REDLINE Standard Test Methods for Detector Calibration and Analysis of Radionuclides
ASTM C 697 : 2016 : REDLINE Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Plutonium Dioxide Powders and Pellets
ASTM E 170 : 2017 : REDLINE Standard Terminology Relating to Radiation Measurements and Dosimetry
ASTM E 704 : 2013 : REDLINE Standard Test Method for Measuring Reaction Rates by Radioactivation of Uranium-238
ASTM E 1005 : 2016 : REDLINE Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance
ASTM E 261 : 2016 : REDLINE Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
ASTM E 944 : 2013-01 GUIDE FOR APPLICATION OF NEUTRON SPECTRUM ADJUSTMENT METHODS IN REACTOR SURVEILLANCE

View more information
£64.04
Excluding VAT

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.