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Title: Attenuation of external Bremsstrahlung in metallic absorbers

Abstract

In this paper attenuation of bremsstrahlung from {sup 147}Pm and {sup 170}Tm beta emitters has been studied in aluminum, copper, tin, and lead metallic absorbers. Bremsstrahlung spectra and mass attenuation coefficients for monoenergetic gamma rays are used to calculate theoretical attenuation curves. Magnetic deflection and beta stopping techniques are used to measure the integral bremsstrahlung intensities above 30 keV in different target thicknesses. Comparison of measured and calculated attenuation curves shows a good agreement for various absorbers, thus providing a test of this technique, which may be useful in understanding bremsstrahlung intensity buildup and in the design of optimum shielding for bremsstrahlung sources. It is found that the absorption of bremsstrahlung in metallic absorbers does not obey an exponential law and that absorbers act as energy filters.

Authors:
; ;  [1]
  1. Punjabi Univ., Physics Dept., Patiala 147002 (IN)
Publication Date:
OSTI Identifier:
5071975
Resource Type:
Journal Article
Journal Name:
Nuclear Science and Engineering; (United States)
Additional Journal Information:
Journal Volume: 106:4; Journal ID: ISSN 0029-5639
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; PROMETHIUM 147; BREMSSTRAHLUNG; THULIUM 170; ACCURACY; ALUMINIUM; ATTENUATION; BETA DECAY; COPPER; CORRELATIONS; GAMMA RADIATION; LEAD; PROMETHIUM 147 TARGET; THICKNESS; TIN; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; DECAY; DIMENSIONS; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; METALS; NUCLEAR DECAY; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PROMETHIUM ISOTOPES; RADIATIONS; RADIOISOTOPES; RARE EARTH ISOTOPES; RARE EARTH NUCLEI; TARGETS; THULIUM ISOTOPES; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES; 653005* - Nuclear Theory- Radioactive Decay

Citation Formats

Dhaliwal, A S, Powar, M S, and Singh, M. Attenuation of external Bremsstrahlung in metallic absorbers. United States: N. p., 1990. Web.
Dhaliwal, A S, Powar, M S, & Singh, M. Attenuation of external Bremsstrahlung in metallic absorbers. United States.
Dhaliwal, A S, Powar, M S, and Singh, M. 1990. "Attenuation of external Bremsstrahlung in metallic absorbers". United States.
@article{osti_5071975,
title = {Attenuation of external Bremsstrahlung in metallic absorbers},
author = {Dhaliwal, A S and Powar, M S and Singh, M},
abstractNote = {In this paper attenuation of bremsstrahlung from {sup 147}Pm and {sup 170}Tm beta emitters has been studied in aluminum, copper, tin, and lead metallic absorbers. Bremsstrahlung spectra and mass attenuation coefficients for monoenergetic gamma rays are used to calculate theoretical attenuation curves. Magnetic deflection and beta stopping techniques are used to measure the integral bremsstrahlung intensities above 30 keV in different target thicknesses. Comparison of measured and calculated attenuation curves shows a good agreement for various absorbers, thus providing a test of this technique, which may be useful in understanding bremsstrahlung intensity buildup and in the design of optimum shielding for bremsstrahlung sources. It is found that the absorption of bremsstrahlung in metallic absorbers does not obey an exponential law and that absorbers act as energy filters.},
doi = {},
url = {https://www.osti.gov/biblio/5071975}, journal = {Nuclear Science and Engineering; (United States)},
issn = {0029-5639},
number = ,
volume = 106:4,
place = {United States},
year = {Sat Dec 01 00:00:00 EST 1990},
month = {Sat Dec 01 00:00:00 EST 1990}
}