A substantially increased beam extraction efficiency can be achieved in the case of a multiple beam's passage through a crystal. This suggestion was verified in experiments with short (5-7 mm long) curved single crystals with bending angles of 1.5-1.7 mrad performed at the Institute of High Energy Physics. The peak efficiency values obtained were 47 ± 3%, and the maximum average efficiency was 42 ± 2% for a 23% intensity taken from an accelerated beam. The maximum extracted beam intensity was 6 × 10{sup}11 protons per cycle.
展开▼
