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Absolute measurements with a 4 {pi}-counter

Abstract

Measurements on standardized p-emitters have been made in a 4 it proportional flow-counter. The counter efficiency is found to be near 100 %. Absorption curves have been determined with plastic foils and aluminium. A comparison is made between the self-absorption arising in different methods of source preparation which include precipitates and the use of wetting agents The most reliable results have been obtained with sources on aluminium foils, where the foil absorption is calculated from the absorption curves and the self-absorption is supposed to be negligible for isotopes with end point energy above 0.5 MeV. The {beta}-emitters studied have energies ranging from 1.71 MeV ({sup 32}P) to 0.167 MeV ({sup 35}S). Most of them have been obtained from National Physical Laboratory and Atomic Energy Research Establishment, Harwell, England. The agreement between their calibration and our measurements is very good except in the case of Co 60.
Publication Date:
Jun 15, 1959
Product Type:
Technical Report
Report Number:
AE-5(2.rev.ed.)
Resource Relation:
Other Information: 13 refs., 4 figs., 3 tabs.
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; RADIATION DETECTORS; FOUR-PI DETECTORS; BETA SOURCES; COBALT 60; EFFICIENCY; FOILS; ALUMINIUM; PLASTICS; ABSORPTION; ABSOLUTE COUNTING
OSTI ID:
20923651
Research Organizations:
AB Atomenergi, Stockholm (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708205
Availability:
Commercial reproduction prohibited; OSTI as DE20923651
Submitting Site:
SWDN
Size:
32 pages
Announcement Date:
Sep 27, 2007

Citation Formats

Martinsson, Kerstin. Absolute measurements with a 4 {pi}-counter. Sweden: N. p., 1959. Web.
Martinsson, Kerstin. Absolute measurements with a 4 {pi}-counter. Sweden.
Martinsson, Kerstin. 1959. "Absolute measurements with a 4 {pi}-counter." Sweden.
@misc{etde_20923651,
title = {Absolute measurements with a 4 {pi}-counter}
author = {Martinsson, Kerstin}
abstractNote = {Measurements on standardized p-emitters have been made in a 4 it proportional flow-counter. The counter efficiency is found to be near 100 %. Absorption curves have been determined with plastic foils and aluminium. A comparison is made between the self-absorption arising in different methods of source preparation which include precipitates and the use of wetting agents The most reliable results have been obtained with sources on aluminium foils, where the foil absorption is calculated from the absorption curves and the self-absorption is supposed to be negligible for isotopes with end point energy above 0.5 MeV. The {beta}-emitters studied have energies ranging from 1.71 MeV ({sup 32}P) to 0.167 MeV ({sup 35}S). Most of them have been obtained from National Physical Laboratory and Atomic Energy Research Establishment, Harwell, England. The agreement between their calibration and our measurements is very good except in the case of Co 60.}
place = {Sweden}
year = {1959}
month = {Jun}
}