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 DM: Instrumentation II
9:00 AM–11:45 AM,
Thursday, October 25, 2018
Hilton
Room: Queen's 6
Chair: Alexandra Gade, Michigan State University
Abstract ID: BAPS.2018.HAW.DM.3
Abstract: DM.00003 : Implementing a gas jet target inside the solenoidal spectrometer HELIOS*
9:30 AM–9:45 AM
Presenter:
Holly G Stemp
(University of Surrey)
Authors:
Holly G Stemp
(University of Surrey)
Kelly A. Chipps
(Oak Ridge National Lab)
Steven D. Pain
(Oak Ridge National Lab)
David G Walter
(Rutgers Univ)
Michael T Febbraro
(Oak Ridge National Lab)
The benefits of using a solenoidal spectrometer to study nuclear reactions in inverse kinematics include improved effective energy resolution through the elimination of kinematic compression. However, target-induced effects, such as the energy loss of the beam and reaction products, can limit solenoidal spectrometers from achieving this idealised resolution. Solid targets and gas cells possess a number of inherent issues, related to energy loss and significant background reactions, which have a detrimental effect on the energy and angular resolution that can be achieved. The Jet Experiments in Nuclear Structure and Astrophysics (JENSA) system is a windowless supersonic gas jet target able to provide localised densities of over 5x1018 atoms/cm2, with significantly fewer contaminants and less energy and angle straggling than many traditional targets. Here we present the first steps towards implementing a gas jet target similar to JENSA inside the solenoidal spectrometer HELIOS at Argonne National Laboratory, with preliminary gas flow tests performed using a prototype setup at Oak Ridge National Laboratory.
*This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC05-00OR22725.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.DM.3
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