C. Bruce Tarter. The American Lab: An Insider’s History of the Lawrence Livermore National Laboratory. (Johns Hopkins Nuclear History and Contemporary Affairs.) ix + 453 pp., bibl., index. Baltimore: Johns Hopkins University Press, 2018. $79.95 (cloth). ISBN 9781421425313.

Isis ◽  
2019 ◽  
Vol 110 (2) ◽  
pp. 437-438
Author(s):  
Catherine Westfall
Keyword(s):  
Lawrence Livermore National Laboratory ◽  
National Laboratory ◽  
Johns Hopkins University ◽  
History Of ◽  
Nuclear History

scholarly journals The role of EBIT in X-ray laser research

2008 ◽  
Vol 86 (1) ◽  
pp. 19-23 ◽  
Author(s):  
J Nilsen
Keyword(s):  
Cross Sections ◽  
Ion Trap ◽  
Lawrence Livermore National Laboratory ◽  
National Laboratory ◽  
Highly Charged Ions ◽  
Index Of Refraction ◽  
X Ray ◽  
History Of ◽  
Level Of Understanding ◽  
Charged Ions

In the early 1980s, the X-ray laser program required a new level of understanding and measurements of the atomic physics of highly charged ions. The electron beam ion trap (EBIT) was developed and built at Lawrence Livermore National Laboratory (LLNL) as part of the effort to understand and measure the cross sections and wavelengths of highly charged ions. This paper explains some of the early history of EBIT and how it was used to help develop X-ray lasers. EBIT’s capability was unique and some of the experimental results obtained over the years, related to X-ray lasers, will be shown. As X-ray lasers have now become a table-top tool, new areas of research that involve understanding the index of refraction in partially ionized plasmas will be discussed. In addition, new areas where EBIT may be able to further contribute will be suggested.PACS Nos.: 52.38.–r, 52.25.Os, 52.70.–m, 42.55.Vc, 07.60.Ly, 29.30.Kv, 31.15.–p

Lattice QCD on GPU clusters, using the QUDA library and the Chroma software system

2012 ◽  
Vol 26 (4) ◽  
pp. 386-398 ◽  
Author(s):  
Bálint Joó ◽  
Mike A. Clark
Keyword(s):  
Quantum Chromodynamics ◽  
Graphics Processing Units ◽  
Lawrence Livermore National Laboratory ◽  
National Laboratory ◽  
Application Framework ◽  
Software System ◽  
Nuclear Forces ◽  
Lattice Quantum Chromodynamics ◽  
Lattice Quantum ◽  
Strong Scaling

The QUDA library for optimized lattice quantum chromodynamics using GPUs, combined with a high-level application framework such as the Chroma software system, provides a powerful tool for computing quark propagators, a key step in current calculations of hadron spectroscopy, nuclear structure, and nuclear forces. In this contribution we discuss our experiences, including performance and strong scaling of the QUDA library and Chroma on the Edge Cluster at Lawrence Livermore National Laboratory and on various clusters at Jefferson Lab. We highlight some scientific successes and consider future directions for graphics processing units in lattice quantum chromodynamics calculations.

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