DEVELOPMENT OF A 1.3-GHZ BUNCHER CAVITY FOR THE COMPACT ERL
DEVELOPMENT OF A 1.3-GHZ BUNCHER CAVITY FOR THE COMPACT ERL
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为紧凑型 ERL 开发 1.3GHz 聚束器腔
DOI：
10.18429/jacow-ipac2014-thpri045
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Yamamoto
中科院分区：
文献类型：
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作者：
Takeshi Takahashi;Y. Honda;T. Miura;T. Miyajima;H. Sakai;S. Sakanaka;K. Shinoe;T. Uchiyama;K. Umemori;M. Yamamoto
在紧凑型ERL的高亮度注入器中，使用1.3 GHz聚束腔来压缩来自光阴极DC电子枪的电子聚束。为了在极低的压力下产生约130 kV的射频电压，我们开发了一种正常导电腔。在其设计中，我们采取了几项措施来减少腔体的释气，同时仔细设计射频以避免任何射频问题。在高功率测试下，我们成功地测试了聚束腔高达约190 kV的射频电压，没有任何问题。当射频电压小于130 kV时，获得了（2-3）× 10 - 9 Pa的极低气压。
In a high-brightness injector of the Compact ERL, a 1.3-GHz buncher cavity is used to compress the electron bunches from a photocathode DC electron gun. To produce required rf voltage of about 130 kV under extremely-low pressures, we have developed a normalconducting cavity. In its design, we included several measures to reduce the outgas from the cavity, together with careful rf designs to avoid any rf problems. Under high-power tests, we successfully tested the buncher cavity up to an rf voltage of about 190 kV without any problem. We also achieved extremely-low pressure of about (2-3)10 -9 Pa when the rf voltage is less than about 130 kV.