Accumulation of ions from a recoil mass separator in a new type of linear ion trap

被引：35

作者：

Fujitaka, S

Wada, M

Wang, H

Tanaka, J

Kawakami, H

Katayama, I

Ogino, K

Katsuragawa, H

Nakamura, T

Okada, K

Ohtani, S

机构：

[1] TOHO UNIV,DEPT PHYS,FUNABASHI,CHIBA 274,JAPAN

[2] UNIV ELECTROCOMMUN,INST LASER SCI,CHOFU,TOKYO 182,JAPAN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1997年 / 126卷 / 1-4期

关键词：

GUIDE; ONLINE;

D O I：

10.1016/S0168-583X(96)01032-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new type of linear ion trap system in combination with a sextupole ion beam guide (SPIG) has been developed for the accumulation of a continuous ion beam. An axial trapping potential is generated by three cylindrical electrodes mounted outside, but concentric to, the SPIG. The ions in a continuous beam are trapped in the potential well via collisions with He gas. This linear ion trap is called the ''SPIG-trap''. The properties of the SPIG-trap were tested off-fine with a discharge ion source in a gas cell. Up to 10(6) ions were trapped and extracted as a bunch with an efficiency of 10% for 10 ms of accumulation. The SPIG-trap system was then connected to a gas filled recoil mass separator (GARIS) and tested with an energetic primary beam from a cyclotron (O-16, 107 MeV). The overall efficiency of the SPIG-trap including ion losses in an energy degrader, which was placed in front of the He cell, was measured to be of the order of 10(-5) for 10 ms accumulation.

引用

页码：386 / 391

页数：6

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