PRESENT STATUS OF TARN-II VACUUM-SYSTEM

Citation
K. Chida et al., PRESENT STATUS OF TARN-II VACUUM-SYSTEM, Vacuum, 44(5-7), 1993, pp. 539-543
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
VacuumACNP
ISSN journal
0042207X
Volume
44
Issue
5-7
Year of publication
1993
Pages
539 - 543
Database
ISI
SICI code
0042-207X(1993)44:5-7<539:PSOTV>2.0.ZU;2-M
Abstract
The heavy ion cooler synchrotron, TARN-II, has been operated for studi es of accelerator technology and atomic physics since 1989 at the Inst itute for Nuclear Study, University of Tokyo. The ring has a circumfer ence of 78 m and the vacuum pipe is made of SUS 316L stainless steel T he vacuum system consists of ion pumps, titanium sublimation pumps and turbo-molecular pumps. Beam experiments like acceleration, electron c ooling, and extraction have been carried out at a mean pressure of the order of 10(-10) torr. In 199 1, the upgrading of TARN-II vacuum syst em had been performed by adding ion pumps and titanium sublimation pum ps in order to promote the experiments using heavy ion beams. Ion beam s such as p, D, H-2+, H-3+, He-3+, He-4(2+), HD2+, (HeH+)-He-4, N-14(5 +) and (N-14(7+) have been injected and circulated in the ring so far.