Isobar suppression by photodetachment in a gas-filled rf quadrupole ion guide

被引：27

作者：

Liu, Y ^{[1
]}

Beene, JR ^{[1
]}

Havener, CC ^{[1
]}

Liang, JF ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 11期

关键词：

D O I：

10.1063/1.2046732

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A technique based on selective nonresonant laser photodetachment of unwanted negative ion species has been developed for efficient suppression of isobaric contaminants in negative ion beams. A radio-frequency quadrupole ion guide is employed to cool the negative ion beam and dramatically increase the interaction time of the ions with the laser, substantially increasing the efficiency of the photodetachment process. In a proof-of-principle experiment, we achieved 95% suppression of Co-59(-) ions by photodetachment while under identical conditions 10% of Ni-58(-) ions were neutralized.

引用

页数：3

共 8 条

[1]

ALTON GD, 2003, COMMUNICATION

[2]

[Anonymous], UNPUB

[3] SELECTIVE SUPPRESSION OF NEGATIVE-IONS BY LASERS [J].

BERKOVITS, D ;

BOARETTO, E ;

HOLLOS, G ;

KUTSCHERA, W ;

NAAMAN, R ;

PAUL, M ;

VAGER, Z .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 281 (03) :663-666

[4] STUDY OF LASER INTERACTION WITH NEGATIVE-IONS [J].

BERKOVITS, D ;

BOARETTO, E ;

HOLLOS, G ;

KUTSCHERA, W ;

NAAMAN, R ;

PAUL, M ;

VAGER, Z .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 52 (3-4) :378-383

[5] A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams [J].

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 .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 469 (02) :254-275

[6] Buffer gas cooling of ion beams [J].

Kellerbauer, A ;

Kim, T ;

Moore, RB ;

Varfalvy, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 469 (02) :276-285

[7] Collisional cooling of negative-ion beams [J].

Liu, Y ;

Liang, JF ;

Alton, GD ;

Beene, JR ;

Zhou, Z ;

Wollnik, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 187 (01) :117-131

[8] Beam cooler for low-energy radioactive ions [J].

Nieminen, A ;

Huikari, J ;

Jokinen, A ;

Äystö, J ;

Campbell, P ;

Cochrane, ECA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 469 (02) :244-253

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