The β-decay Paul trap: A radiofrequency-quadrupole ion trap for precision β-decay studies

被引：36

作者：

Scielzo, N. D. ^{[1
,2
]}

Li, G. ^{[2
,3
]}

Sternberg, M. G. ^{[2
,4
]}

Savard, G. ^{[2
,4
]}

Bertone, P. F. ^{[2
]}

Buchinger, F. ^{[3
]}

Caldwell, S. ^{[2
,4
]}

Clark, J. A. ^{[2
]}

Crawford, J. ^{[3
]}

Deibel, C. M. ^{[2
,5
]}

Fallis, J. ^{[2
,6
]}

Greene, J. P. ^{[2
]}

Gulick, S. ^{[3
]}

Hecht, A. A. ^{[2
,7
,8
]}

Lascar, D. ^{[2
,9
]}

Lee, J. K. P. ^{[3
]}

Levand, A. F. ^{[2
]}

Pedretti, M. ^{[1
]}

Segel, R. E. ^{[9
]}

Sharma, H. ^{[2
,6
]}

Sharma, K. S. ^{[2
,6
]}

Tanihata, I. ^{[2
]}

Van Schelt, J. ^{[2
,4
]}

Yee, R. M. ^{[1
,10
]}

Zabransky, B. J. ^{[2
]}

机构：

[1] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA

[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

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

[4] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[5] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA

[6] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada

[7] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

[8] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

[9] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[10] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 681卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Ion trapping; Recoil-ion spectroscopy; beta-Decay angular correlations; CONVERSION ELECTRON-SPECTROSCOPY; PENNING TRAP; WITCH EXPERIMENT; SPECTROMETER; ATOMS;

D O I：

10.1016/j.nima.2012.04.035

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The beta-decay Paul trap is a linear radiofrequency-quadrupole ion trap that has been developed for precision beta-decay studies. The design of the trap electrodes allows a variety of radiation detectors to surround the cloud of trapped ions. The momentum of the low-energy recoiling daughter nuclei following beta decay is negligibly perturbed by scattering and is available for study. This advantageous property of traps allows the kinematics of particles that are difficult or even impossible to directly detect to be precisely reconstructed using conservation of energy and momentum. An ion-trap system offers several advantages over atom traps, such as higher trapping efficiencies and element-independent capabilities. The first precision experiment using this system is a measurement of beta-decay angular correlations in the decay of Li-8 performed by inferring the momentum of the neutrino from the kinematic shifts imparted to the breakup a particles. Many other beta-decay studies that would benefit from a determination of the nuclear recoil can be performed with this system. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：94 / 100

页数：7

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