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A New Boron Analysis Method

Abstract

In connection with fast neutron (n, {alpha}) cross section measurements a novel boron analysis method has been developed. The boron concentration is inferred from the mass spectrometrically determined number of helium atoms produced in the thermal and epithermal B-10 (n, {alpha}) reaction. The relation between helium amount and boron concentration is given, including corrections for self shielding effects and background levels. Direct and diffusion losses of helium are calculated and losses due to gettering, adsorption and HF-ionization in the release stage are discussed. A series of boron determinations is described and the results are compared with those obtained by other methods, showing excellent agreement. The lower limit of boron concentration which can be measured varies with type of sample. In e.g. steel, concentrations below 10-5 % boron in samples of 0.1-1 gram may be determined.
Publication Date:
Jul 01, 1970
Product Type:
Technical Report
Report Number:
AE-396
Resource Relation:
Other Information: 16 refs., 2 figs., 3 tabs.
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BORON; QUANTITATIVE CHEMICAL ANALYSIS; NEUTRON REACTIONS
OSTI ID:
20961849
Research Organizations:
AB Atomenergi, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708767
Availability:
Commercial reproduction prohibited; OSTI as DE20961849
Submitting Site:
SWDN
Size:
30 pages
Announcement Date:
Dec 29, 2007

Citation Formats

Weitman, J, Daaverhoeg, N, and Farvolden, S. A New Boron Analysis Method. Sweden: N. p., 1970. Web.
Weitman, J, Daaverhoeg, N, & Farvolden, S. A New Boron Analysis Method. Sweden.
Weitman, J, Daaverhoeg, N, and Farvolden, S. 1970. "A New Boron Analysis Method." Sweden.
@misc{etde_20961849,
title = {A New Boron Analysis Method}
author = {Weitman, J, Daaverhoeg, N, and Farvolden, S}
abstractNote = {In connection with fast neutron (n, {alpha}) cross section measurements a novel boron analysis method has been developed. The boron concentration is inferred from the mass spectrometrically determined number of helium atoms produced in the thermal and epithermal B-10 (n, {alpha}) reaction. The relation between helium amount and boron concentration is given, including corrections for self shielding effects and background levels. Direct and diffusion losses of helium are calculated and losses due to gettering, adsorption and HF-ionization in the release stage are discussed. A series of boron determinations is described and the results are compared with those obtained by other methods, showing excellent agreement. The lower limit of boron concentration which can be measured varies with type of sample. In e.g. steel, concentrations below 10-5 % boron in samples of 0.1-1 gram may be determined.}
place = {Sweden}
year = {1970}
month = {Jul}
}