Collision Cross Sections of Carbon and Hydrogen for Fast Neutrons |
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Page 208
... energy . In general , cross sections obtained in this way will be the sum of cross sections for three different ... proton intensity is measured at two different angles with respect to the neutron beam , and the angular distribution is then ...
... energy . In general , cross sections obtained in this way will be the sum of cross sections for three different ... proton intensity is measured at two different angles with respect to the neutron beam , and the angular distribution is then ...
Page 210
... proton energy necessary to cause a coincidence is computed for the two cases in Table I of Section 3 . ( g ) The aluminum absorbers defining the limits of the energy intervals were put into the proton path at this line . The thicknesses ...
... proton energy necessary to cause a coincidence is computed for the two cases in Table I of Section 3 . ( g ) The aluminum absorbers defining the limits of the energy intervals were put into the proton path at this line . The thicknesses ...
Page 211
... energy loss of a proton in the last 0.24 air cm of its range , so that the least energetic protons which could cause coincidences were those whose paths ended about 0.24 air cm inside the sensitive region of the second chamber . These ...
... energy loss of a proton in the last 0.24 air cm of its range , so that the least energetic protons which could cause coincidences were those whose paths ended about 0.24 air cm inside the sensitive region of the second chamber . These ...
Common terms and phrases
absorber in front Ageno air cm aluminum absorbers Aluminum window Amaldi angle angular distribution Aoki assumption atoms Bailey beryllium Bocciarelli calculated carbon and hydrogen carbon scatterers cm high cm thick cm² collision cross section computed cyclotron target detector efficiency deuterium deuterons elastic electrical sensitivity energy end energy Mev energy range entered the sensitive experimental results fast neutrons final values front of chamber g/cm² high energies inch inelastic collisions inelastic scattering ionization chamber kev/cm lithium lower limit measured meson method mgm/cm² neutron beam neutron energy interval neutron source neutrons having energies neutrons scattered nuclear nuclei number of coincidences number of neutrons obtained paraffin layer paraffin scatterers peak energy Phys present experiments proton cross section proton energy proton path ratio recoil protons relative standard deviation S-wave scattered neutrons scattering cross section Seaborg sections of carbon sensitive region Sherr Tatel total cross sections total number WILLIAM SLEATOR