JANUS — A setup for low-energy Coulomb excitation at ReA3
Abstract
We constructed a new experimental setup for low-energy Coulomb excitation experiments in a collaboration between the National Superconducting Cyclotron Laboratory (NSCL), Lawrence Livermore National Laboratory (LLNL), and the University of Rochester and was commissioned at the general purpose beam line of NSCL’s ReA3 reaccelerator facility. The so-called JANUS setup combines γ-ray detection with the Segmented Ge Array (SeGA) and scattered particle detection using a pair of segmented double-sided Si detectors (Bambino 2). Furthermore, the low-energy Coulomb excitation program that JANUS enables will complement intermediate-energy Coulomb excitation studies that have long been performed at NSCL by providing access to observables that quantify collectivity beyond the first excited state, including the sign and magnitude of excited-state quadrupole moments. In this work, the setup and its performance will be described based on the commissioning run that used stable 78Kr impinging onto a 1.09 mg/cm2 208Pb target at a beam energy of 3.9 MeV/u.
- Authors:
-
- Michigan State University, East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy
- Michigan State University, East Lansing, MI (United States). National Superconducting Cyclotron Laboratory
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. of Rochester, NY (United States). Department of Physics
- Michigan State University, East Lansing, MI (United States). National Superconducting Cyclotron Laboratory and Department of Chemistry
- Publication Date:
- Research Org.:
- Michigan State University, East Lansing, MI (United States). National Superconducting Cyclotron Laboratory; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Michigan State Univ., East Lansing, MI (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1416318
- Alternate Identifier(s):
- OSTI ID: 1416506; OSTI ID: 1430732; OSTI ID: 1548991
- Report Number(s):
- LLNL-JRNL-739594
Journal ID: ISSN 0168-9002; PII: S0168900217314638; TRN: US1800920
- Grant/Contract Number:
- NA0003180; FG02-08ER41556; AC52-07NA27344; NA0002132; PHY-1565546; PHY-0969079
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 885; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Low-energy Coulomb excitation; Collectivity; low-energy coulomb excitation; collectivity
Citation Formats
Lunderberg, E., Belarge, J., Bender, P. C., Bucher, B., Cline, D., Elman, B., Gade, A., Liddick, S. N., Longfellow, B., Prokop, C., Weisshaar, D., and Wu, C. Y. JANUS — A setup for low-energy Coulomb excitation at ReA3. United States: N. p., 2017.
Web. doi:10.1016/j.nima.2017.12.057.
Lunderberg, E., Belarge, J., Bender, P. C., Bucher, B., Cline, D., Elman, B., Gade, A., Liddick, S. N., Longfellow, B., Prokop, C., Weisshaar, D., & Wu, C. Y. JANUS — A setup for low-energy Coulomb excitation at ReA3. United States. https://doi.org/10.1016/j.nima.2017.12.057
Lunderberg, E., Belarge, J., Bender, P. C., Bucher, B., Cline, D., Elman, B., Gade, A., Liddick, S. N., Longfellow, B., Prokop, C., Weisshaar, D., and Wu, C. Y. Thu .
"JANUS — A setup for low-energy Coulomb excitation at ReA3". United States. https://doi.org/10.1016/j.nima.2017.12.057. https://www.osti.gov/servlets/purl/1416318.
@article{osti_1416318,
title = {JANUS — A setup for low-energy Coulomb excitation at ReA3},
author = {Lunderberg, E. and Belarge, J. and Bender, P. C. and Bucher, B. and Cline, D. and Elman, B. and Gade, A. and Liddick, S. N. and Longfellow, B. and Prokop, C. and Weisshaar, D. and Wu, C. Y.},
abstractNote = {We constructed a new experimental setup for low-energy Coulomb excitation experiments in a collaboration between the National Superconducting Cyclotron Laboratory (NSCL), Lawrence Livermore National Laboratory (LLNL), and the University of Rochester and was commissioned at the general purpose beam line of NSCL’s ReA3 reaccelerator facility. The so-called JANUS setup combines γ-ray detection with the Segmented Ge Array (SeGA) and scattered particle detection using a pair of segmented double-sided Si detectors (Bambino 2). Furthermore, the low-energy Coulomb excitation program that JANUS enables will complement intermediate-energy Coulomb excitation studies that have long been performed at NSCL by providing access to observables that quantify collectivity beyond the first excited state, including the sign and magnitude of excited-state quadrupole moments. In this work, the setup and its performance will be described based on the commissioning run that used stable 78Kr impinging onto a 1.09 mg/cm2 208Pb target at a beam energy of 3.9 MeV/u.},
doi = {10.1016/j.nima.2017.12.057},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 885,
place = {United States},
year = {2017},
month = {12}
}
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