Title of article :
Observation of β-ray spectra after penetrating absorbing materials
Author/Authors :
Y. Kawada، نويسنده , , T. Yamada، نويسنده , , J. Itoh، نويسنده , , Y. Sato، نويسنده , , A. Yunoki، نويسنده , , Y. Hino، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
4
From page :
819
To page :
822
Abstract :
β-Ray spectra after penetrating absorbing materials of various thicknesses were observed by the use of a scintillation-type β-ray spectrometer equipped with a flat NE-102 plastic scintillator of 5 mm thickness for sources of 60Co, 90Sr–90Y, 137Cs, 147Pm and 204Tl. Although the spectra changed rapidly with increasing absorber thickness, the average β-ray energy was kept nearly constant for a wider range. These results are consistent in that the β-ray absorption curve becomes quasi-linear in a semi-logarithmic plot. Spectra including scattered β-rays from several materials placed behind the source were also measured for 137Cs and 204Tl. It may be concluded that mean energy measurements by the use of β-ray spectrometer of this kind is useful for the identification of nuclides in radiation protection purposes even in worse source-conditions.
Keywords :
Average energy , ?-Ray spectra , Plastic scintillation spectrometer , Penetration , Back-scatter , Absorber
Journal title :
Applied Radiation and Isotopes
Serial Year :
2008
Journal title :
Applied Radiation and Isotopes
Record number :
548455
Link To Document :
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