CERN Accelerating science

Published Articles
Report number	FERMILAB-CONF-16-405-AD
Title	Experimental results of beryllium exposed to intense high energy proton beam pulses
Author(s)	Ammigan, K (Fermilab) ; Hartsell, B (Fermilab) ; Hurh, P (Fermilab) ; Zwaska, R (Fermilab) ; Butcher, M (CERN) ; Guinchard, M (CERN) ; Calviani, M (CERN) ; Losito, R (CERN) ; Roberts, S (Oxford U. ; Culham Lab) ; Kuksenko, V (Oxford U.) ; Atherton, A (Rutherford) ; Caretta, O (Rutherford) ; Davenne, T (Rutherford) ; Densham, C (Rutherford) ; Fitton, M (Rutherford) ; Loveridge, J (Rutherford) ; O'Dell, J (Rutherford)
Publication	2017
Number of pages	4
In:	2016 North American Particle Accelerator Conference, Chicago, IL, USA, 9 - 14 Oct 2016, pp.MOPOB14
DOI	10.18429/JACoW-NAPAC2016-MOPOB14
Subject category	Material Science
Accelerator/Facility, Experiment	CERN HiRadMat
Abstract	Beryllium is extensively used in various accelerator beam lines and target facilities as material for beam windows, and to a lesser extent, as secondary particle production targets. With increasing beam intensities of future accelerator facilities, it is critical to understand the response of beryllium under extreme conditions to reliably operate these components as well as avoid compromising particle production efficiency by limiting beam parameters. As a result, an exploratory experiment at CERN's HiRadMat facility was carried out to take advantage of the test facility's tunable high intensity proton beam to probe and investigate the damage mechanisms of several beryllium grades. The test matrix consisted of multiple arrays of thin discs of varying thicknesses as well as cylinders, each exposed to increasing beam intensities. This paper outlines the experimental measurements, as well as findings from Post-Irradiation-Examination (PIE) work where different imaging techniques were used to analyze and compare surface evolution and microstructural response of the test matrix specimens.
Copyright/License	CC-BY-3.0

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