In 1998, a 5-cell, β=0.64, 700MHz superconducting cavity was manufactured by Advanced Energy Systems Inc. (AES) Medford, NY (figure 1). This work was performed under contract to Los Alamos National Laboratory (LANL) through Burns and Roe Enterprises, in association with General Atomics, utilizing customer provided RRR>250 niobium and fabrication tooling. This paper will describe the fabrication process including development of a hydroforming process for half cell forming and manufacturing of beam tubes. Testing of the cavity was recently performed at the Jefferson Laboratory cryogenic facility where it exceeded specifications by reaching an E{sub}(acc) of 9.5 MV/m at a Q of 3×10{sup}10 with no detectable field emission.
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机译：1998年，通过Advanced Energy Systems Inc.（AES）Medford，NY制造了5个细胞，β= 0.64,700MHz超导腔（图1）。通过烧伤和资源企业与一般原子有关，利用客户提供的RRR> 250铌和制造工具，根据董事会和ROE企业进行这项工作。本文将描述制造过程，包括用于半电池形成和梁管制造的液压成形过程的开发。最近在杰斐逊实验室低温设施上进行腔的测试，其中通过在3×10 {sup} 10的Q处达到9.5 mV / m的e {sub}（acc）而超过了规格，没有可检测的场发射。
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