A new cryogenic gas-filled stopping chamber for SHIPTRAP

作者：Eliseev S^*; Block M; Dworschak M; Herfurth F; Kluge H J; Martin A; Rauth C; Vorobjev G

来源：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 2008, 266(19-20): 4475-4477.

DOI：10.1016/j.nimb.2008.05.055

• Gas-filled stopping cell
• SHiPTRAP
• Radio-frequency fields
• RF ion funnel

The second generation cryogenic gas-filled stopping chamber for SHIPTRAP (cryocell) is being developed. The gas cell will be operated with helium gas at 25 mbar cooled down to 77 K. A stopping efficiency is estimated to be about 90% for reaction products of the fusion-evaporation reaction Ca-48 on Pb-208. An extraction efficiency of about 40% is considered a realistic estimate for the cryocell. Thus, a total efficiency of about 35% is expected. The cryocell design and its expected performance will be presented in this paper.

• 出版日期2008-10