Title :
Test results of a combined distributed ion pump/non-evaporable getter pump design developed as a proposed alternative pumping system for the PEP-II asymmetric B-factory collider
Author :
Holdener, F.R. ; Behne, D. ; Hathawa, D. ; Kishiyama, K. ; Mugge, M. ; Stoeffl, W. ; van Bibber, K. ; Perkins, C. ; Daly, E.F. ; Hoyt, E. ; Hoyt, M. ; Nordby, M. ; Seeman, J. ; Wright, D.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
We have built and tested an all-in-one combination plate-type distributed ion pump/non-evaporable getter pump design (DIP/NEG) considered as a proposed alternative pumping system for the PEP-II B-Factory High Energy Ring (HER). The DIP portion of the design used a Penning cell hole size of 12 mm in a mostly uniform magnetic field of 0.18 T. The NEG portion of the design used commercially available non-evaporable getter material type St-707. A detailed description of the design is presented along with results of pumping speed measurements
Keywords :
colliding beam accelerators; electron accelerators; getters; ion pumps; storage rings; PEP-II asymmetric B-factory collider; Penning cell; alternative pumping system; combined distributed ion pump/non-evaporable getter pump design; nonevaporable getter material; Copper; Electronics packaging; Gettering; Laser excitation; Magnetic materials; Prototypes; Strips; System testing; Vacuum arcs; Vacuum systems;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505457
