literature
Literature
Authors
Jobs
Seminars
Conferences
DataBETA

Commissioning and operation of the transverse collimation system at the RCS of CSNS

Mar 13, 2024
12 pages
Published in:
  • JINST 19 (2024) 03, T03004
  • Published: Mar 13, 2024
DOI:
reference search0 citations

Citations per year

0 Citations
Abstract: (IOP)
In high-intensity proton synchrotrons, controlling beam loss during machine operation iscrucial to prevent radiation damage. Uncontrolled beam loss poses a significant challenge inachieving higher beam intensity and power in these synchrotrons. The beam collimation system playsa vital role in removing halo particles and localizing beam loss, serving as a critical tool forcontrolling uncontrolled beam loss in high-intensity proton accelerators. To address the issue ofuncontrolled beam loss, a two-stage transverse collimation system was designed at the rapidcycling synchrotron (RCS) of China Spallation Neutron Source (CSNS). However, during the beamcommissioning, it was found that the collimation efficiency was compromised due to the small ratioof the physical acceptance to the collimator acceptance and insufficient phase advances betweenthe primary and secondary collimators. To address this issue, the designed two-stage collimatorwas modified to a one-stage collimator. Through optimization of the collimation system, the beamloss was effectively localized within the collimator area. As a result, CSNS achieved the designpower of 100 kW with minimal uncontrolled beam loss.
  • Accelerator Subsystems and Technologies
  • Beam dynamics