B. DeGraff
Oak Ridge National Laboratory
20 Papers
36 Citations
B. DeGraff is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Spallation Neutron Source & Plasma processing. The author has an hindex of 6, co-authored 18 publications.
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Papers
Overview of ten-year operation of the superconducting linear accelerator at the Spallation Neutron Source
Sang-Ho Kim,Ralph Afanador,Debra Barnhart,M. Crofford,B. DeGraff,Marc Doleans,John D Galambos,S. W. Gold,M. Howell,John Mammosser,Christopher McMahan,T. Neustadt,Charles Peters,Jeffrey Saunders,W. Strong,D. J. Vandygriff,D. M. Vandygriff +16 more
TL;DR: The Spallation Neutron Source (SNS) has acquired extensive operational experience of a pulsed proton superconducting linear accelerator (SCL) as a user facility as mentioned in this paper.
Plasma Processing R&D for the SNS Superconducting Linac RF Cavities
Marc Doleans,Ralph Afanador,Jeffrey Allen Ball,Willem Blokland,Mark Crofford,B. DeGraff,D. Douglas,Brian Hannah,M. Howell,Christopher McMahan,Jeffrey Saunders,Puneet Tyagi +11 more
- 01 Jan 2013
TL;DR: In-situ plasma processing was identified as a promising technique to reduce electron activity in the SNS superconducting cavities and increase their accelerating gradient as discussed by the authors, which was deployed in the linac tunnel by 2016.
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The status of the superconducting linac and srf activities at the sns
S-H . Kim,Ralph Afanador,W. Blokland,M. Champion,A. Coleman,M. Crofford,B. DeGraff,Marc Doleans,D. Douglas,T. Gorlov,Brian Hannah,M. Howell,Y-S Kang,Christopher McMahan,T. Neustadt,S. Ottaway,Charles Peters,Jeffrey Saunders,A. Shishlo,Stephen Stewart +19 more
- 01 Jan 2013
TL;DR: In this article, the status of the SNS SCL operation and related superconducting radio-frequency (SRF) activities such as development of ASME code-stamped spare cryomodules, R&D activities for SRF cavity performance improvements, SRF cavities development for power upgrade project, and SRF facility development/ upgrade to support all required activities.
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Plasma Processing to Improve the Performance of the SNS Superconducting Linac
Marc Doleans,Ralph Afanador,Jeffrey Allen Ball,Debra Barnhart,Willem Blokland,Mark Crofford,B. DeGraff,Steve Gold,Brian Hannah,M. Howell,Sang-Ho Kim,Sung-Woo Lee,John Mammosser,Christopher McMahan,T. Neustadt,Jeffrey Saunders,Stephen Stewart,William J. Strong,Puneet Tyagi,Daniel Vandygriff,David Vandygriff +20 more
- 01 May 2017
TL;DR: An in-situ plasma processing technique has been developed at the Spallation Neutron Source (SNS) to improve the performance of the superconducting radio-frequency (SRF) cavities in operation.
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2-K pump down studies at SNS
M. Howell,Fabio Casagrande,B. DeGraff,Venkatarao Ganni,Sang-Ho Kim,Peter Knudsen,M. Martinez,B. Morris,T. Neustadt,R. Norton,C. Scanlon,H. Strong,D. J. Vandygriff,G. Wilson +13 more
- 18 Dec 2015
TL;DR: In this paper, the authors used several sequences developed as a collaborative effort between Thomas Jefferson National Accelerator Facility (TJNAF) and SNS personnel during the original commissioning of the SNS cryogenic system.
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