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Title: Beam particle identification and tagging of incompletely stripped heavy beams with HEIST

Journal Article · · Review of Scientific Instruments
DOI: https://doi.org/10.1063/5.0068180 · OSTI ID:1847601
ORCiD logo [1];  [2];  [2];  [2];  [2];  [3];  [2];  [4];  [2];  [2]; ORCiD logo [2]; ORCiD logo [2];  [3]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [2];  [2];  [2];  [2] more »;  [3];  [2];  [3];  [2];  [2]; ORCiD logo [2];  [2];  [2];  [5] « less
  1. Michigan State Univ., East Lansing, MI (United States); Michigan State University
  2. Michigan State Univ., East Lansing, MI (United States)
  3. Western Michigan Univ., Kalamazoo MI (United States)
  4. Michigan State Univ., East Lansing, MI (United States); Univ. de Santiago de Compostela (Spain)
  5. Univ. of Connecticut, Storrs, CT (United States)

A challenge preventing successful inverse kinematics measurements with heavy nuclei that are not fully stripped is identifying and tagging the beam particles. For this purpose, the HEavy ISotope Tagger (HEIST) has been developed. HEIST utilizes two micro-channel plate timing detectors to measure the time-of-flight, a multi-sampling ion chamber to measure energy loss, and a high-purity germanium detector to identify isomer decays and calibrate the isotope identification system. HEIST has successfully identified 198Pb and other nearby nuclei at energies of about 75 MeV/A. In the experiment discussed, a typical cut containing 89% of all 198Pb80+ in the beam had a purity of 86%. We examine the issues of charge state contamination. Here, the observed charge state populations of these ions are presented and, using an adjusted beam energy, are well described by the charge state model GLOBAL.

Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0020451
OSTI ID:
1847601
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 93; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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