GALADRIEL: A facility for advancing engineering science relevant to rep-rated high energy density physics and inertial fusion energy experiments

被引：0
|
作者：
Collins, G. W. [1 ]
McGuffey, C. [1 ]
Jaris, M. [1 ]
Vollmer, D. [1 ]
Dautt-Silva, A. [1 ]
Linsenmayer, E. [1 ]
Keller, A. [1 ]
Ramirez, J. C. [2 ]
Sammuli, B. [1 ]
Margo, M. [1 ]
Manuel, M. J. -E. [1 ]
机构：
[1] Gen Atom, San Diego, CA 92121 USA
[2] Univ Calif San Diego, San Diego, CA 92093 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2024年 / 95卷 / 11期
关键词：
LASER-MATTER INTERACTION; HIGH-REPETITION-RATE; WAVE-FRONT-SENSOR; ELECTRON ACCELERATION; KHZ; PW;
D O I：
10.1063/5.0220160
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Many current and upcoming laser facilities used to study high-energy-density (HED) physics and inertial fusion energy (IFE) support operating at high rep-rates (HRRs) of similar to 0.1-10 Hz, yet many diagnostics, target-fielding strategies, and data storage methods cannot support this pace of operation. Therefore, established experimental paradigms must change for the community to progress toward rep-rated operation. To this end, we introduce the General Atomics LAboratory for Developing Rep-rated Instrumentation and Experiments with Lasers, or GALADRIEL, to serve as a test bed for developing and benchmarking the engineering science advancements required for HRR experiments. GALADRIEL was constructed from the ground up around a commercial 1 TW (similar to 25 mJ in similar to 25 fs at 800 nm) laser with diverse experimental applications in mind. Assembly of the basic framework of GALADRIEL concluded with commissioning shots generating similar to 1-4 MeV electrons via laser-wakefield acceleration (LWFA) using a nitrogen gas jet. Subsequent LWFA experiments operated at 1 Hz, utilized instrument feedback for optimization, and stored all data in a custom-built NoSQL database system. From this database called MORIA, or the MOngodb Repository for Information Archiving, data are retrievable via individual files or en masse by query requests defined by the user. GALADRIEL focuses on outstanding questions in engineering science, including targetry, diagnostics, data handling, environmental and materials studies, analysis and machine learning algorithm development, and feedback control systems. GALADRIEL fills a niche presently missing in the US-based user-facility community by providing a flexible experimental platform to address problems in engineering science relevant to rep-rated HED and IFE experiments.
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页数：11
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