A Test Stand to Measure Desorption of Cryogenic Surfaces
نویسندگان
چکیده
H. Kollmus1, M. Wengenroth1, Th. Hackler1, M. Bender1, D. Severin1, A. Krämer1, E. Mahner2, and H. Reich-Sprenger1 1GSI, Darmstadt, Germany; 2CERN, Geneva, Switzerland Ion induced desorption is a serious intensity limitation for high current, low charge state heavy ion accelerators like SIS18 and SIS100. Whereas room temperature desorption was intensively investigated in the last years [1, 2], there is only one measurement for molecular desorption of a cryogenic surface in the relevant energy regime [3]. Since SIS100 is a cryogenic, super-conducting machine, desorption yield data for cryogenic surfaces in the relevant temperature regime are required. Therefore two test stands where taken in operation at CERN and GSI in 2009. First GSI results will be presented.
منابع مشابه
Heavy-ion induced desorption of cryogenic surfaces
Heavy-ion induced desorption of cryogenic surfaces E. Mahner 1 , L. Evans 1 , M. Bender 2,# , D. Severin 2 , H. Kollmus 2 , M. Wengenroth 2 1 CERN, 1211 Geneva 23, Switzerland; 2 GSI, 64291 Darmstadt, Germany Introduction Ion-induced desorption is a severe luminosity limitation of low charge state heavy-ion accelerators. Studying the phenomena for almost 10 years using different target material...
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