Transport beam line for ultraslow monoenergetic antiprotons

被引：26

作者：

Franzen, KY ^{[1
]}

Kuroda, N

Torii, HA

Hori, M

Wang, Z

Higaki, H

Yoneda, S

Juhász, B

Horváth, D

Mohri, A

Komaki, K

Yamazaki, Y

机构：

[1] RIKEN, Atom Phys Lab, Wako, Saitama 35101, Japan

[2] Univ Tokyo, Inst Phys, Meguro Ku, Tokyo 153, Japan

[3] CERN, CH-1211 Geneva, Switzerland

[4] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

[5] KFKI Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2003年 / 74卷 / 07期

关键词：

D O I：

10.1063/1.1578160

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A beam line for the transportation of slow antiprotons from a multiring electrode trap to an experimental chamber is described. The beam line is equipped with a three-stage differential pumping system in order to maintain a pressure lower than 1x10(-12) Torr in the trap region while simultaneously having a pressure of around 1x10(-6) Torr in the chamber. Tests have shown that 10(5) positive ions per trapping cycle were successfully extracted at 250 eV from the trap positioned in a superconducting solenoid. The ions were then further transported through three small apertures to the target area located 3.5 m downstream of the trap. Results from the first delivery of a 250 eV antiproton beam are described. (C) 2003 American Institute of Physics.

引用

页码：3305 / 3311

页数：7

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