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AbstractAbstract
[en] Single-cell 1.3 GHz niobium (Nb) and niobium-coated copper (Nb/Cu) cavities were fabricated and tested at low temperatures. The niobium cavities were made from high purity material to obtain a superior thermal stability. The copper cavities were formed by electroforming to acquire a high thermal conductivity, and their inner surfaces were coated with a niobium thin film. In the initial cold tests, maximum accelerating fields of higher than 10 MV/m were achieved in both cavities. Q0 values at 10 MV/m (T = 2.1K) were 1.8 x 109 in the Nb cavity and 2.0 x 108 in the Nb/Cu cavity. (author)
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Institute of Physical and Chemical Research, Wako, Saitama (Japan); 479 p; 1992; p. 237-239; Ionics Publishing Co., Ltd; Tokyo (Japan); 8. symposium on accelerator science and technology; Wako, Saitama (Japan); 25-27 Oct 1991
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