NDLI: Quantitative determination of boron in steel by solid state nuclear track technique

Content Provider	Springer Nature Link
Author	Akram, M. Qureshi, A. A. Khattak, N. U. Mehmood, K. Qureshi, I. E. Khan, H. A.
Copyright Year	1999
Abstract	Trace amounts of boron present as impurity in steel can be accurately determined by measuring the α-yield in$^{10}$B (n,α)$^{7}$Li reaction, since this reaction has a very high cross section for thermal and epithermal neutrons while natural boron contains significant isotopic abundance of$^{10}$B. The α-particles produced during$^{10}$B (n,α)$^{7}$Li nuclear reactions can be detected by solid state nuclear track detectors (SSNTDs) and the boron content and its distribution can be determined in a sample. The technique involves the simultaneous irradiation of unknown and known samples with thermal neutrons and recording the reaction products in SSNTDs as α-tracks. The α-tracks in the detectors are counted with the aid of an optical microscope after chemical etching. Boron concentration and distribution in the unknown sample is determined by counting and comparing the track density with that of standard sample of known boron concentration. The technique of SSNTDs has been applied by us to determine the distribution of trace amount of boron in commercial alloy steel using LR-115, CA80-15, CN-85 and CR-39 detectors. All these detectors pose various problems during reactor irradiation and etching. However, CR-39 has been found to be suitable for determining the magnitude and distribution of boron in steel. A brief description of the method and the optimum irradiation and etching conditions of various detectors for α-track revelation along with results for the estimation of boron in alloy steel are described in this paper.
Starting Page	823
Ending Page	827
Page Count	5
File Format	PDF
ISSN	02365731
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume Number	240
Issue Number	3
e-ISSN	15882780
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1999-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry Physical Chemistry Diagnostic Radiology Nuclear Physics, Heavy Ions, Hadrons Nuclear Chemistry
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Pollution Health, Toxicology and Mutagenesis Radiology, Nuclear Medicine and Imaging Analytical Chemistry Public Health, Environmental and Occupational Health Nuclear Energy and Engineering

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