The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes

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• 作者：D. Weisshaar^a ; ^{weisshaar@nscl.msu.edu} ; D. Bazin^a ; ^b ; P.C. Bender^a ; C.M. Campbell^c ; F. Recchia^a ; V. Bader^a ; ^b ; T. Baugher^a ; ^b ; J. Belarge^a ; M.P. Carpenter^d ; H.L. Crawford^c ; M. Cromaz^c ; B. Elman^a ; ^b ; P. Fallon^c ; A. Forney^f ; A. Gade^a ; ^b ; J. Harker^f ; N. Kobayashi^a ; C. Langer^a ; T. Lauritsen^d ; I.Y. Lee^c ; A. Lemasson^a ; B. Longfellow^a ; ^b ; E. Lunderberg^a ; ^b ; A.O. Macchiavelli^c ; K. Miki^a ; S. Momiyama^g ; S. Noji^a ; D.C. Radford^e ; M. Scott^a ; ^b ; J. Sethi^f ; S.R. Stroberg^a ; ^b ; ¹ ; C. Sullivan^a ; ^b ; R. Titus^a ; ^b ; A. Wiens^c ; S. Williams^a ; ² ; K. Wimmer^a ; ^g ; S. Zhu^d
• 关键词：γ-ray spectroscopy ; Rare-isotope beams ; GRETINA
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：847
• 期：Complete
• 页码：187-198
• 全文大小：822 K
• 卷排序：847

文摘

The γ-ray tracking array GRETINA was coupled to the S800 magnetic spectrometer for spectroscopy with fast beams of rare isotopes at the National Superconducting Cyclotron Laboratory on the campus of Michigan State University. We describe the technical details of this powerful setup and report on GRETINA's performance achieved with source and in-beam measurements. The γ-ray multiplicity encountered in experiments with fast beams is usually low, allowing for a simplified and efficient treatment of the data in the γ-ray analysis in terms of Doppler reconstruction and spectral quality. The results reported in this work were obtained from GRETINA consisting of 8 detector modules hosting four high-purity germanium crystals each. Currently, GRETINA consists of 10 detector modules.