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Title: Thermal shock experiment of beryllium exposed to intense high energy proton beam pulses

Journal Article · · Physical Review Accelerators and Beams
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  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  3. Univ. of Oxford (United Kingdom)
  4. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
+ Show Author Affiliations

Beryllium is a material extensively used in various particle accelerator beam lines and target facilities, as beam windows and, to a lesser extent, as secondary particle production targets. With increasing beam intensities of future multimegawatt accelerator facilities, these components will have to withstand even greater thermal and mechanical loads during operation. As a result, it is critical to understand the beam-induced thermal shock limit of beryllium to help reliably operate these components without having to compromise particle production efficiency by limiting beam parameters. As part of the RaDIATE (radiation damage in accelerator target environments) Collaboration, an exploratory experiment to probe and investigate the thermomechanical response of several candidate beryllium grades was carried out at CERN’s HiRadMat facility, a user facility capable of delivering very-high-intensity proton beams to test accelerator components. Multiple arrays of thin beryllium disks of varying thicknesses and grades, as well as thicker cylinders, were exposed to increasing beam intensities to help identify any thermal shock failure threshold. Real-time experimental measurements and postirradiation examination studies provided data to compare the response of the various beryllium grades, as well as benchmark a recently developed beryllium Johnson-Cook strength model.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1505014
Alternate ID(s):
OSTI ID: 1508026
Report Number(s):
FERMILAB-PUB-18-670-AD; PRABCJ; 1728877
Journal Information:
Physical Review Accelerators and Beams, Vol. 22, Issue 4; ISSN 2469-9888
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (7)

Material damage to beryllium, carbon, and tungsten under severe thermal shocks journal October 1998
Thermal conductivity of highly neutron-irradiated beryllium in nuclear fusion reactors journal May 2012
Irradiation effects in beryllium exposed to high energy protons of the NuMI neutrino source journal July 2017
Propagation of elastic pressure waves in a beam window journal September 2016
Impact of the surface quality on the thermal shock performance of beryllium armor tiles for first wall applications journal November 2016
MARS15 code developments driven by the intensity frontier needs journal January 2014
Comportement Dynamique D'Une Nuance de Beryllium journal October 1991

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