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Spectral distribution of secondary electrons ejected from the cylindrical shell of the gamma emission source


Meditsinskaya Radiologiya 22(9): 61-66
Spectral distribution of secondary electrons ejected from the cylindrical shell of the gamma emission source
The calculations obtained by the method of static tests of the spectral characteristics of secondary electronic and quantum emission, which developed in the shell of the cylindrical .gamma.-radiation 60Co source and also in the material of the source are given. The number of Compton and photoelectrons ejected from the shell and the number of electrons reflected in the source were calculated. The dose contribution of the secondary electrons ejected from the source shell was also estimated. The dose contribution of the secondary electrons ejected from the shell of the cylindrical .gamma.-radiation 60Co source increased with a rise of the atomic number of the shell material. The comparison of the dependence of the quantum output of electrons on the atomic number of the cylindrical shell form with a quantum output in the case of plane geometry was made and considerable differences were found.


Accession: 006459650



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