Open AccessRadiation model and experimental research on novel pinhole-assisted point-projection backlight
Author(s) -
Jiwang Yan,
Minxi Wei,
Yudong Pu,
Shenye Liu,
Zhan Xia-Yu,
Lin Zhang,
Zheng Jian-Hua,
Jiang Shao-En
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.015204
Subject(s) - backlight , optics , brightness , pinhole (optics) , hohlraum , laser , projection (relational algebra) , physics , inertial confinement fusion , radiation , plasma , computer science , liquid crystal display , algorithm , quantum mechanics
High flux, Multi-keV X-rays, can be efficiently produced from nano-second laser interaction with metal target. Multi-keV backlight X-ray source is very important in inertial confinement fusion and high-energy density physics research. The one-dimensional numerical simulation results propose a laser plasmas radiation model, and the model is compared well with Shenguang II experimental results. The pinhole-assisted point-projection (PAPP) backlight is improved by the model; the rear-on PAPP backlight for low-Z metal target and the side-on PAPP backlight for middle-Z metal target are developed. The experiment is performed on Shenguang II 9th laser facility. The static stream line obtained with novel PAPP backlight provides high-quality capsule image, and the spatial resolution is better than 10 μm. Results show that novel PAPP backlight has advantages of traditional PAPP in source brightness, spatial resolution and image contrast.