D. Williams
Oak Ridge National Laboratory
13 Papers
12 Citations
D. Williams is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Spallation Neutron Source & Cryomodule. The author has an hindex of 3, co-authored 13 publications.
Chat about Author
Papers
Technical Design Report, Second Target Station
John D Galambos,David E. Anderson,D. Bechtol,Katie L. Bethea,N. Brown,W. F. Carden,Steven M. Chae,A. Clark,Deborah M. Counce,K. Craft,Mark Crofford,Richard M. Collins,Sarah Cousineau,Douglas E. Curry,Roy I. Cutler,Michael J. Dayton,Robert A. Dean,Craig Deibele,Marc Doleans,T. Dye,Bob H. Eason,James A. Eckroth,C. Fincrock,S. Fritts,Franz X. Gallmeier,Ken R. Gawne,Steven M. Hartman,Kenneth W. Herwig,S. Hess,Jeffrey A Holmes,Charlie M. Horak,M. Howell,Erik B. Iverson,Lorelei L. Jacobs,Larry C. Jones,B. Johnson,S. Johnson,Kay Kasemir,Sang-Ho Kim,Gregory J. Laughon,Wei Lu,Kelly L. Mahoney,John Mammosser,Thomas J McManamy,M. Michilini,Mark E. Middendorf,Ed O'Neal,B. Nemec,Roy Cecil Peters,Michael A Plum,G. Reagan,Igor Remec,Mark J. Rennich,Bernie Riemer,Robert B. Saethre,James Phillip Schubert,Andrei Shishlo,C. Craig Smith,William Herb Strong,Kathie M. Tallant,David Alan Tennant,Barbara M. Thibadeau,S. Trumble,Steven M. Trotter,Zhijun Wang,Steven B. Webb,D. Williams,Karen S. White,Jinkui Zhao +68 more
- 01 Jan 2015
TL;DR: The Second Target Station (STS) as mentioned in this paper is a proposed upgrade for SNS that includes a doubling of the accelerator power and an additional instrument hall, which will receive a 467 kW 10 Hz beam.
Construction, Test, and Operation of a new RFQ at the Spallation Neutron Source (SNS)
Yoon W. Kang,Alexander Aleksandrov,William Barnett,Mark Champion,Mark Crofford,Baoxi Han,Sung-Woo Lee,John Moss,Charles Peters,Jeremy Price,Ronald Roseberry,James Schubert,Andrei Shishlo,Martin P Stockli,Christopher Stone,Robert F Welton,D. Williams,Alexander Zhukov +17 more
- 01 Jun 2018
Abstract: A new RFQ was successfully installed recently in the SNS linac to replace the old RFQ that was used for more than a decade with certain operational limitations. The new RFQ was completely tested with Hion source in the Beam Test Facility (BTF) at SNS. For robust operation of SNS at 1.4 MW, the full design beam power and to satisfy the beam current requirement of the forthcoming SNS proton power upgrade (PPU) project, an RFQ with enhanced performance and reliability was needed. The new RFQ was built to have the beam parameters identical to those of the first RFQ but with improved RF and mechanical stability and reliability for continuous operation of neutron production. The tests confirmed that the new RFQ can run with high beam transmission efficiency at around 90 % and notably improved operational stability. In this paper, construction, test, installation, and operation of the new RFQ in SNS are discussed with the performance improvements.
2
The SNS insulating vacuum design for the superconducting linac
D. Williams,X. Geng,P. Ladd +2 more
- 25 Jun 2007
TL;DR: In this article, an overview of the insulating vacuum system (IVS) that has been installed for this purpose is provided. But the authors do not provide a detailed description of the system.
2
Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
TL;DR: The extended Q-range Small-angle Neutron Scattering Diffractometer instrument at the spallation neutron source (SNS), Oak Ridge, Tennessee, incorporates a 69 m3 detector vessel with a vacuum system which required an upgrade with respect to performance, ease of operation, and maintenance.
2