Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session LB: Nuclear Reactions 1
9:00 AM–11:30 AM,
Saturday, October 27, 2018
Hilton
Room: Kohala 1
Chair: A.B. Balantekin, University of Wisconsin
Abstract ID: BAPS.2018.HAW.LB.6
Abstract: LB.00006 : Benchmarking the Active Catcher Array for Detecting Heavy Elements Produced in Multi-Nucleon Transfer Reactions
10:15 AM–10:30 AM
Presenter:
Aditya Wakhle
(Texas A&M Univ)
Authors:
Aditya Wakhle
(Texas A&M Univ)
Alan B McIntosh
(Texas A&M Univ)
Kris Hagel
(Texas A&M Univ)
Marina Barbui
(Texas A&M Univ)
Jerome Gauthier
(Texas A&M Univ)
Bryan Matthew Harvey
(Texas A&M Univ)
Lauren Heilborn
(Texas A&M Univ)
Ian Jeanis
(Texas A&M Univ)
Andrea Jedele
(Texas A&M Univ)
Joseph B Natowitz
(Texas A&M Univ)
Alis Rodriguez Manso
(Texas A&M Univ)
Elysia Salas
(Texas A&M Univ)
Roy Wada
(Texas A&M Univ)
Andrew Zarella
(Texas A&M Univ)
Sherry J Yennello
(Texas A&M Univ)
All known elements from Fm to Og have been synthesized by heavy-ion fusion reactions, and are neutron-deficient relative to beta-stability. Multi-Nucleon Transfer (MNT) reactions have been suggested as an alternate pathway to synthesize new neutron-rich heavy nuclei and to approach the N=184 shell. The limited success of making heavy nuclides in radiochemical studies in the 70’s and 90’s led to skepticism over the veracity of these predictions. A reexamination of older data, and new predictions from microscopic and macroscopic models have reinvigorated efforts directed at making neutron-rich isotopes of Z=104-108 with these reactions.
The Active Catcher Array (AC) is a device at Texas A&M University built to study heavy residues produced in MNT reactions. It consists of 40 YAP scintillators coupled to PMTs at forward angles, and 8 IC-Si detectors at backward angles. A measurement of the 238U + 232Th reaction showed promising signatures of residues with Z up to 116 being produced in this reaction.
A new campaign of experiments aims to benchmark the AC, develop an algorithm for identifying alpha chains, and make the case for a much improved active catcher array with higher granularity, better energy resolution and linear energy response using single crystal diamond detectors.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.LB.6
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