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Celliers PM, Millot M. Imaging velocity interferometer system for any reflector (VISAR) diagnostics for high energy density sciences. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:011101. [PMID: 36725591 DOI: 10.1063/5.0123439] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/28/2022] [Indexed: 06/18/2023]
Abstract
Two variants of optical imaging velocimetry, specifically the one-dimensional streaked line-imaging and the two-dimensional time-resolved area-imaging versions of the Velocity Interferometer System for Any Reflector (VISAR), have become important diagnostics in high energy density sciences, including inertial confinement fusion and dynamic compression of condensed matter. Here, we give a brief review of the historical development of these techniques, then describe the current implementations at major high energy density (HED) facilities worldwide, including the OMEGA Laser Facility and the National Ignition Facility. We illustrate the versatility and power of these techniques by reviewing diverse applications of imaging VISARs for gas-gun and laser-driven dynamic compression experiments for materials science, shock physics, condensed matter physics, chemical physics, plasma physics, planetary science and astronomy, as well as a broad range of HED experiments and laser-driven inertial confinement fusion research.
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Affiliation(s)
- Peter M Celliers
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Marius Millot
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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Ye Q, Hu Y, Duan X, Liu H, Zhang H, Zhang C, Sun L, Yang W, Xu W, Cai Q, Wang Z, Jiang S. Theoretical development and experimental validation on the measurement of temperature by extended X-ray absorption fine structure. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:436-445. [PMID: 32153282 DOI: 10.1107/s1600577520000752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
A systematic investigation on the theoretical framework of the ultra-fast measurement of temperature by extended X-ray absorption fine structure (EXAFS) applied in laser-driven-compression experiments has been carried out and a new temperature measurement scheme based on the EXAFS cumulant expansion analysis and anharmonic correlated Debye model has been advanced. By considering the anharmonic effect of thermal vibration and avoiding the employment of the empirical model as well as parameters which have large inherent uncertainties in the temperature determination, this new scheme is theoretically more accurate than traditional ones. Then the performance of the new measurement scheme and traditional methods were validated on a synchrotron radiation platform by temperature-dependent EXAFS (TDEXAFS) experiments on Au, Fe, V and Ti; the results showed that the new scheme could provide the most accurate measured temperatures with much lower uncertainties. This accurate scheme gives a firmer physical ground to the EXAFS temperature measurement technique and can expect to be applied in laser-driven compression experiments and promote the development of matter state research at extreme conditions.
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Affiliation(s)
- Qing Ye
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Yun Hu
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Xiaoxi Duan
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Hao Liu
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Huan Zhang
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Chen Zhang
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Liang Sun
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Weiming Yang
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Wei Xu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, CAS, Beijing 100049, People's Republic of China
| | - Quan Cai
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, CAS, Beijing 100049, People's Republic of China
| | - Zhebin Wang
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Shaoen Jiang
- Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
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