CROSS SECTION FOR THE PRODUCTION OF (30)P FROM (31)P BY PROTONS OF ENERGIES BELOW 190 MEV.
UPPSALA UNIV (SWEDEN) GUSTAF WERNER INST
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The excitation function for the production of 30P from 31P by protons between 20 and 190 MeV has been measured. The sum of the cross sections of the reactions leading to the production of 30P from 31P was found to rise from threshold to a maximum of 50 to 100 millibarns between 15 and 50 MeV. At higher energies there was a continuous decrease to 32 plus or minus 5 millibarns at 100 MeV and 25 plus or minus 4 millibarns at 180 MeV. The result has some bearing upon the significance of 30P as a contributor to the delayed radiation dose after irradiation of tissues with high-energy protons. The conclusion is drawn that 30P should not be regarded important from this aspect as compared with the dominating radionuclides 15O, 11C and 13N. Author
- Nuclear Physics and Elementary Particle Physics