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Title: A new data processing technique for Rayleigh-Taylor instability growth experiments

Abstract

Typical face-on experiments for Rayleigh-Taylor instability study involve the time-resolved radiography of an accelerated foil with line-of-sight of the radiography along the direction of motion. The usual method which derives perturbation amplitudes from the face-on images reverses the actual image transmission procedure, so the obtained results will have a large error in the case of large optical depth. In order to improve the accuracy of data processing, a new data processing technique has been developed to process the face-on images. This technique based on convolution theorem, refined solutions of optical depth can be achieved by solving equations. Furthermore, we discuss both techniques for image processing, including the influence of modulation transfer function of imaging system and the backlighter spatial profile. Besides, we use the two methods to the process the experimental results in Shenguang-II laser facility and the comparison shows that the new method effectively improve the accuracy of data processing.

Authors:
; ; ; ; ; ;  [1]; ; ;  [2]
  1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)
  2. Institute of Applied Physics and Computational Mathematics, Beijing 100094 (China)
Publication Date:
OSTI Identifier:
22611547
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 6; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACCURACY; AMPLITUDES; COMPARATIVE EVALUATIONS; DATA PROCESSING; DISTURBANCES; EQUATIONS; ERRORS; FOILS; IMAGE PROCESSING; IMAGES; LASER RADIATION; MODULATION; PERTURBATION THEORY; RAYLEIGH-TAYLOR INSTABILITY; TIME RESOLUTION; TRANSFER FUNCTIONS; TRANSMISSION

Citation Formats

Yuan, Yongteng, Tu, Shaoyong, Miao, Wenyong, Yin, Chuansheng, Hao, Yidan, Ding, Yongkun, Jiang, Shaoen, E-mail: jiangshn@vip.sina.com, Wu, Junfeng, Wang, Lifeng, and Ye, Wenhua. A new data processing technique for Rayleigh-Taylor instability growth experiments. United States: N. p., 2016. Web. doi:10.1063/1.4953846.
Yuan, Yongteng, Tu, Shaoyong, Miao, Wenyong, Yin, Chuansheng, Hao, Yidan, Ding, Yongkun, Jiang, Shaoen, E-mail: jiangshn@vip.sina.com, Wu, Junfeng, Wang, Lifeng, & Ye, Wenhua. A new data processing technique for Rayleigh-Taylor instability growth experiments. United States. doi:10.1063/1.4953846.
Yuan, Yongteng, Tu, Shaoyong, Miao, Wenyong, Yin, Chuansheng, Hao, Yidan, Ding, Yongkun, Jiang, Shaoen, E-mail: jiangshn@vip.sina.com, Wu, Junfeng, Wang, Lifeng, and Ye, Wenhua. Wed . "A new data processing technique for Rayleigh-Taylor instability growth experiments". United States. doi:10.1063/1.4953846.
@article{osti_22611547,
title = {A new data processing technique for Rayleigh-Taylor instability growth experiments},
author = {Yuan, Yongteng and Tu, Shaoyong and Miao, Wenyong and Yin, Chuansheng and Hao, Yidan and Ding, Yongkun and Jiang, Shaoen, E-mail: jiangshn@vip.sina.com and Wu, Junfeng and Wang, Lifeng and Ye, Wenhua},
abstractNote = {Typical face-on experiments for Rayleigh-Taylor instability study involve the time-resolved radiography of an accelerated foil with line-of-sight of the radiography along the direction of motion. The usual method which derives perturbation amplitudes from the face-on images reverses the actual image transmission procedure, so the obtained results will have a large error in the case of large optical depth. In order to improve the accuracy of data processing, a new data processing technique has been developed to process the face-on images. This technique based on convolution theorem, refined solutions of optical depth can be achieved by solving equations. Furthermore, we discuss both techniques for image processing, including the influence of modulation transfer function of imaging system and the backlighter spatial profile. Besides, we use the two methods to the process the experimental results in Shenguang-II laser facility and the comparison shows that the new method effectively improve the accuracy of data processing.},
doi = {10.1063/1.4953846},
journal = {AIP Advances},
number = 6,
volume = 6,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}