A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams

被引：272

作者：

Herfurth, F

Dilling, J

Kellerbauer, A

Bollen, G

Henry, S

Kluge, HJ

Lamour, E

Lunney, D

Moore, RB

Scheidenberger, C

Schwarz, S

Sikler, G

Szerypo, J

机构：

[1] GSI Darmstadt, Atom Phys Div, D-64291 Darmstadt, Germany

[2] CERN, CH-1211 Geneva 23, Switzerland

[3] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[4] CSNSM IN2P3 CNRS, F-91405 Orsay, France

[5] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[6] Univ Jyvaskyla, Dept Phys, FIN-40351 Jyvaskyla, Finland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 469卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ion guide; ion trap; ion cooling; ion buncher; on-line mass spectrometry; radioactive ion beams;

D O I：

10.1016/S0168-9002(01)00168-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An ion beam cooler and buncher has been developed for the manipulation or radioactive ion beams. The gas-filled linear radiofrequency ion trap system is installed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. Its purpose is to accumulate the 60-keV continuous ISOLDE ion beam with high efficiency and to convert it into low-energy low-emittance ion pulses. The efficiency was round to exceed 10% in agreement with simulations. A more than 10-fold reduction of the ISOLDE beam emittance can be achieved. The system has been used successfully for first on-line experiments. Its principle, setup and performance will be discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：254 / 275

页数：22

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