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Review of Scientific Instruments / Volume 74 / Issue 7 / ARTICLES / PARTICLE SOURCES, OPTICS and ACCELERATION; PARTICLE DETECTORS

Rev. Sci. Instrum. 74, 3305 (2003); http://dx.doi.org/10.1063/1.1578160 (7 pages)

Transport beam line for ultraslow monoenergetic antiprotons

K. Yoshiki Franzen1, N. Kuroda2, H. A. Torii2, M. Hori3, Z. Wang2, H. Higaki2, S. Yoneda2, B. Juhász4, D. Horváth5, A. Mohri1, K. Komaki2, and Y. Yamazaki1

1Atomic Physics Laboratory, RIKEN, Wako 351-01, Japan
2Institute of Physics, University of Tokyo, Komaba 3-8-1, Meguro-ku, Tokyo, Japan
3CERN, CH-1211 Geneva 23, Switzerland
4Institute of Nuclear Research of the Hungarian Academy of Sciences, H-4001 Debrecen, Hungary
5KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, Hungary

(Received 9 January 2003; accepted 26 March 2003)

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 1×10−12 Torr in the trap region while simultaneously having a pressure of around 1×10−6 Torr in the chamber. Tests have shown that 105 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. © 2003 American Institute of Physics.

© 2003 American Institute of Physics

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KEYWORDS and PACS

Keywords

proton beams, beam handling equipment

PACS

  • 29.27.Eg

    Beam handling; beam transport

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1578160

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    Y. Yamazaki, AIP Conf. Proc. 498, 48 (1999).

    T. Ichioka, H. Higaki, M. Hori, N. Oshima, K. Kuroki, A. Mohri, K. Komaki, and Y. Yamazaki, AIP Conf. Proc. 498, 59 (1999).

    K. Yoshiki Franzen et al., AIP Conf. Proc. 606, 79 (2002)APCPCS000606000001000079000001.

    L. S. Brown and G. Gabrielse, Rev. Mod. Phys. 58, 233 (1986).

    H. Higaki, N. Kuroda, T. Ichioka, K. Yoshiki Franzen, Z. Wang, K. Komaki, Y. Yamazaki, M. Hori, N. Oshima, and A. Mohri, Phys. Rev. E 65, 046410 (2002).

    T. M. O'Neil, Phys. Fluids 24, 1447 (1981)PFLDAS000024000008001447000001.


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