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Use of details in secondary emission spectra in order to take into account element composition in the radioisotopic, x-ray-fluorescence method

Journal Article:

Abstract

A study is made of secondary emission spectra applicable to the conditions of determining tin in complex iron ores. Use is made of recorders having an intermediate target of samarium oxide, which assure measurement under geometry of a direct field of vision. It is shown that the integral count rate with a definite selection of the initial condition of discrimination or the count rate in the 32 to 34 keV interval of energies characterizes mainly the composition of the filler. With the purpose of increasing the accuracy and decreasing the effect of equipment factors it is more suitable to estimate the filler composition from the integral count rate. Methods are considered for taking into account the effect of composition of the medium on the measurement results according to the method of spectral ratios by means of a nomogram and analytical expressions. With measurements on models the error of determining the tin content was +- 5 percent in effective atomic number range of 13 to 20, while the error was 50 percent without the introduction of corrections. 10 refs. (tr-auth)
Publication Date:
Jan 01, 1974
Product Type:
Journal Article
Reference Number:
EDB-76-048998
Resource Relation:
Journal Name: Uch. Zap. Leningr. Gos. Univ., Ser. Fiz. Geol. Nauk; (USSR); Journal Volume: 24
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; IRON ORES; CHEMICAL ANALYSIS; TIN; X-RAY FLUORESCENCE ANALYSIS; ERRORS; QUANTITATIVE CHEMICAL ANALYSIS; SECONDARY EMISSION; ELEMENTS; EMISSION; METALS; NONDESTRUCTIVE ANALYSIS; ORES; X-RAY EMISSION ANALYSIS; 400103* - Radiometric & Radiochemical Procedures- (-1987)
OSTI ID:
7364423
Research Organizations:
Leningrad State Univ.
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: UCZGA
Submitting Site:
TIC
Size:
Pages: 140-150
Announcement Date:

Journal Article:

Citation Formats

Ivanyukovich, G A, Meier, V A, and Nakhabtsev, V S. Use of details in secondary emission spectra in order to take into account element composition in the radioisotopic, x-ray-fluorescence method. USSR: N. p., 1974. Web.
Ivanyukovich, G A, Meier, V A, & Nakhabtsev, V S. Use of details in secondary emission spectra in order to take into account element composition in the radioisotopic, x-ray-fluorescence method. USSR.
Ivanyukovich, G A, Meier, V A, and Nakhabtsev, V S. 1974. "Use of details in secondary emission spectra in order to take into account element composition in the radioisotopic, x-ray-fluorescence method." USSR.
@misc{etde_7364423,
title = {Use of details in secondary emission spectra in order to take into account element composition in the radioisotopic, x-ray-fluorescence method}
author = {Ivanyukovich, G A, Meier, V A, and Nakhabtsev, V S}
abstractNote = {A study is made of secondary emission spectra applicable to the conditions of determining tin in complex iron ores. Use is made of recorders having an intermediate target of samarium oxide, which assure measurement under geometry of a direct field of vision. It is shown that the integral count rate with a definite selection of the initial condition of discrimination or the count rate in the 32 to 34 keV interval of energies characterizes mainly the composition of the filler. With the purpose of increasing the accuracy and decreasing the effect of equipment factors it is more suitable to estimate the filler composition from the integral count rate. Methods are considered for taking into account the effect of composition of the medium on the measurement results according to the method of spectral ratios by means of a nomogram and analytical expressions. With measurements on models the error of determining the tin content was +- 5 percent in effective atomic number range of 13 to 20, while the error was 50 percent without the introduction of corrections. 10 refs. (tr-auth)}
journal = {Uch. Zap. Leningr. Gos. Univ., Ser. Fiz. Geol. Nauk; (USSR)}
volume = {24}
journal type = {AC}
place = {USSR}
year = {1974}
month = {Jan}
}