Status of the JENSA gas-jet target for experiments with rare isotope beams

Journal Article · 28 September 2018 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI: https://doi.org/10.1016/j.nima.2018.09.052 · OSTI ID:1479718

Schmidt, K. ^[1]; Chipps, K. A. ^[2]; Ahn, S. ^[1]; Bardayan, D. W. ^[3]; Browne, J. ^[4]; Greife, U. ^[5]; Meisel, Z. ^[6]; Montes, F. ^[7]; O’Malley, P. D. ^[3]; Ong, W-J. ^[4]; Pain, S. D. ^[2]; Schatz, H. ^[8]; Smith, K. ^[9]; Smith, M. S. ^[2]; Thompson, P. J. ^[10]

---

1. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. Joint Inst. for Nuclear Astrophysics Center for the Evolution of Elements (JINA-CEE)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
3. Univ. of Notre Dame, IN (United States). Inst. for Structure and Nuclear Astrophysics
4. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. Dept. of Physics and Astronomy
5. Colorado School of Mines, Golden, CO (United States). Dept. of Physics
6. Ohio Univ., Athens, OH (United States). Dept. of Physics & Astronomy
7. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
8. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. Joint Inst. for Nuclear Astrophysics Center for the Evolution of Elements (JINA-CEE); Colorado School of Mines, Golden, CO (United States). Dept. of Physics
9. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
10. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics & Astronomy

The JENSA gas-jet target was designed for experiments with radioactive beams provided by the rare isotope re-accelerator ReA3 at the National Superconducting Cyclotron Laboratory. The gas jet will be the main target for the Separator for Capture Reactions SECAR at the Facility for Rare Isotope Beams on the campus of Michigan State University, USA. We describe the advantages of a gas-jet target, detail the current recirculating gas system, and report recent measurements of helium jet thicknesses of up to about 10¹⁹ atoms/cm². A comparison with other supersonic gas-jet targets is presented.

• Research Organization: Colorado School of Mines, Golden, CO (United States); Michigan State Univ., East Lansing, MI (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Notre Dame, IN (United States)
• Sponsoring Organization: National Science Foundation (NSF) (United States); ORNL Laboratory Directed Research and Development (LDRD) Program; USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• Grant/Contract Number: AC05-00OR22725; FG02-93ER40789
• OSTI ID: 1479718
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 911; ISSN 0168-9002
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English