Chinese Journal of Lasers, Volume. 45, Issue 7, 0704007(2018)

Time Sequence Diagnosis of Implosion Physics Experiment Based on Electromagnetic Radiation

Ying Yan1,2, Shaoen Jiang2, Tao Yi2, Yougen Yi1、*, and Yongkun Ding2
Author Affiliations
  • 1 Hunan Key Laboratory for Super-Microtructure and Ultrafast Process, College of Physics and Electronics, Central South University, Changsha, Hunan 410083, China
  • 2 Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
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    In the implosion physics experiment, several groups of laser pulses interact with the target at different times and produce several transient physical processes. Accurately diagnosing the time sequence relationship between these lasers and the transient process generated by the laser and the target is very important for successfully obtaining the relevant parameters of the experimental state. A time sequence diagnosis method of implosion physics experiment based on the electromagnetic radiation is proposed. It can produce intense electromagnetic pulse radiation when the laser is interacting with metal targets. The time sequence relationship between different lasers and target action processes can be obtained. It provides an important basis for judging and controlling the time sequence between different lasers and target actions. The experimental tests on Shenguang III host large laser devices show that the time sequence diagnosis method of the implosion physical experiment based on the electromagnetic radiation can accurately determine the time sequence relationship between the preliminary pulse laser, the main pulse laser and the interaction between backlight laser and cavity target and flat backlight target. This method has the advantages of simple operation and high measurement precision. It is of great significance to accurately grasp the time relationship between laser and target interaction and improve experimental accuracy.

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    Ying Yan, Shaoen Jiang, Tao Yi, Yougen Yi, Yongkun Ding. Time Sequence Diagnosis of Implosion Physics Experiment Based on Electromagnetic Radiation[J]. Chinese Journal of Lasers, 2018, 45(7): 0704007

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    Paper Information

    Category: measurement and metrology

    Received: Jan. 24, 2018

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Yi Yougen (yougenyi@csu.edu.cn)

    DOI:10.3788/CJL201845.0704007

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