Attenuation of external Bremsstrahlung in metallic absorbers

Journal Article · Sat Dec 01 00:00:00 EST 1990 · Nuclear Science and Engineering; (United States)

OSTI ID:5071975

Dhaliwal, A S; Powar, M S; Singh, M ^[1]

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1. Punjabi Univ., Physics Dept., Patiala 147002 (IN)

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.

• OSTI ID: 5071975
• Journal Information: Nuclear Science and Engineering; (United States), Vol. 106:4; ISSN 0029-5639
• Country of Publication: United States
• Language: English

Related Subjects

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