ONE YEAR OF OPERATION AT THE HEIDELBERG TSR

被引：23

作者：

KRAMER, D ^{[1
]}

BISOFFI, G ^{[1
]}

BLUM, M ^{[1
]}

FRIEDRICH, A ^{[1
]}

GEYER, C ^{[1
]}

HOLZER, B ^{[1
]}

HEYNG, HW ^{[1
]}

HABS, D ^{[1
]}

JAESCHKE, E ^{[1
]}

JUNG, M ^{[1
]}

OTT, W ^{[1
]}

POLLOCK, RE ^{[1
]}

REPNOW, R ^{[1
]}

SCHMITT, F ^{[1
]}

STECK, M ^{[1
]}

机构：

[1] INDIANA UNIV,CYCLOTRON FACIL,BLOOMINGTON,IN 47408

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 287卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(90)91806-M

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

After one year of operation the heavy ion storage ring TSR at the Heidelberg Max-Planck Institut für Kernphysik has reached full performance. As designed 1000 turns are accumulated by a combination of multiturn and rf stacking. Due to phase space compression by an electron cooler the momentum spread of the beams is Δ p/p = 10-5 -10-4 depending on the heating by intrabeam scattering. The cooled beam lifetime is pushed to the limits set by charge exchange processes as electron capture for bare nuclei and electron stripping for incompletely stripped ion beams. As the vacuum pressure is P ≤ 10-10 Torr at present, beam lifetimes range from τ = 36 h for 21 MeV protons to 20 s for 7 MeV Be+. Intensities of up to 18 mA (3 × 1010 particles) C6+ beam have been stacked by applying phase space cooling during injection. For these high intensities the splitting of the longitudinal Schottky noise signal showed irregular behaviour with respect to the expected Δf{hook} ∼ I 1 2 scaling law. © 1990.

引用

页码：268 / 272

页数：5

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