| Popis: |
By counting ${\mathrm{He}}^{3}$ particles with a proportional counter, the differential cross sections for the reaction $\mathrm{D}(d,n){\mathrm{He}}^{3}$ have been measured at laboratory angles from 16.5 degrees to 38.2 degrees (39.3 degrees to 95.0 degrees in center of mass system), for an incident deuteron energy of 10.3 Mev. In the center of mass system, the differential cross section is 4.5\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}27}$ ${\mathrm{cm}}^{2}$ at 90 degrees, decreasing to a minimum of 2.2\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}27}$ ${\mathrm{cm}}^{2}$ at about 45 degrees, and rising steeply at lower angles. By determining the neutron yield with ${\mathrm{Cu}}^{63}(n,2n){\mathrm{Cu}}^{62}$ detectors, the differential cross section at zero degrees is found to be about five times that at 90 degrees (center of mass). |
