Proposal for high pressure RF cavity test in the MTA

[摘要] In order to demonstrate the feasibility of high pressure hydrogen gas filled RF (HPRF) cavities for muon ionization cooling, an HPRF cavity must be tested with a high intensity charged beam. When an HPRF cavity is irradiated with an intense beam each incident particle generates about 1000 electrons and ions per cubic centimeter in a high pressure cavity via ionization. These ionization electrons are influenced by the RF field and the RF quality factor goes down. This Q factor reduction will be a problem with a multi bunch beam, e.g., a muon beam for a muon collider consists of a 12 to 20 bunch train beam with 5 ns timing gap. Thus, the RF field must recover in few nano seconds. We propose to use a 400 MeV proton beam in the MTA and measure a beam loading effect in the HPRF cavity and study the recovery mechanism of the RF field.

[发布日期] 2010-09-01

[学科分类] 核物理和高能物理

[关键词] CAVITIES;ELECTRONS;HYDROGEN;IONIZATION;MUON BEAMS;MUONS;PROTON BEAMS;QUALITY FACTOR Accelerators