Behavior of Space Charge Free Diamond Crystal Counters under Beta-Ray Bombardment. II

By using the technique described in the preceding paper a study is made of the behavior of a diamond crystal counter under space charge free conditions when subjected to bombardment by beta-rays. The pulse heights caused by the beta-particles are found to be proportional to the energy of the beta-particles over the range 0.66 Mev to 1.0 Mev when a low field strength is used. The trap density in the crystal is found to be of the order of 2×${10}^{16}$ per cc and the mean energy required to form an electron hole pair is approximately 7 ev.