Published March 2021 | Version v1
Journal article Metadata-only

Reduction of contaminants originating from primary beam by improving the beam stoppers in GARIS-II

Creators

  • 1. Nishina Center for Accelerator Based Science, RIKEN, Wako, 351-0198 (Japan)
  • 2. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
  • 3. Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization -KEK, Wako, 351-0198 (Japan)
  • 4. Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization - KEK, Wako, 351-0198 (Japan)

Description

Two independent beam stoppers have been developed for improving the beam separation of the gas-filled recoil ion separator GARIS-II. Performance of these supplemental beam stoppers was investigated by using the 208Pb (18O,3n) 223Th reaction. A160-fold enhancement of the signal-to-noise ratio at the GARIS-II focal plane was observed.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nima.2020.164996

Additional details

Identifiers

DOI
10.1016/j.nima.2020.164996;
PII
S0168900220313930;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
992
Journal Page Range
vp.
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54083897
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
BEAMS; IONS; LEAD 208; OXYGEN 18; PERFORMANCE; RECOILS; SIGNAL-TO-NOISE RATIO; THORIUM 223
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CHARGED PARTICLES; DIMENSIONLESS NUMBERS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; ISOTOPES; LEAD ISOTOPES; LIGHT NUCLEI; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; OXYGEN ISOTOPES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; STABLE ISOTOPES; THORIUM ISOTOPES

Optional Information

Copyright
Copyright (c) 2020 Elsevier B.V. All rights reserved.