Abstract
Attenuation of beta ray bremsstrahlung from 204Tl and 32P beta emitters has been studied in Al, Cu, Sn and Pb targets. A beta stopper technique was employed to measure the integral bremsstrahlung intensities above 30 keV energy in different thicknesses of absorbers. The calculated values were obtained from the bremsstrahlung spectra recorded with different targets and the tabulated values of attenuation coefficients for mono-energetic gamma rays. A good agreement between the measured and calculated values supports the correctness of the procedure used to evaluate the attenuation of bremsstrahlung. Metallic absorbers are found to act as energy filters and change the shape of transmitted bremsstrahlung spectrum due to decrease of the attenuation parameter with increase in absorber thickness.
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