[Table of Contents]

Plasma and Fusion Research

Volume 2, S1017 (2007)

Regular Articles

Monochromatic X-Ray Sampling Imager for Laser-Imploded Core Plasma Observation with Highly Spatial, Temporal, and Spectral Resolutions
Minoru TANABE, Hiroaki NISHIMURA, Shinsuke FUJIOKA, Hiroki ISHIMARU, Yuichi INUBUSHI, Keiji NAGAI, Hiroyuki SHIRAGA, Takayoshi NORIMATSU, Hiroshi AZECHI and Kunioki MIMA
Institute of laser engineering, Osaka University, Osaka 565-0871, Japan
(Received 13 December 2006 / Accepted 16 February 2007 / Published 20 November 2007)

Abstract

A novel x-ray imaging method, providing spatial resolution of 10 μm, temporal resolution 10 ps, and spectral resolution of E/ΔE = 200 (E: photon energy), is suggested to diagnose laser driven fusion plasma. This scheme consists of a monochromatic x-ray imager with the use of two-dimensional (2D) curved crystals and an imagesampling streak camera. Feasibility of the method was studied using GEKKO XII laser and chlorinated plastic shell targets. Early appearance of Cl-Heα line emission during the implosion stage was found for the present conditions, which made image reconstruction difficult.

Keywords

inertial confinement fusion, fast ignition, laser-imploded core plasma, plasma diagnostics, x-ray imaging, x-ray spectroscopy

DOI: 10.1585/pfr.2.S1017

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This paper may be cited as follows:

Minoru TANABE, Hiroaki NISHIMURA, Shinsuke FUJIOKA, Hiroki ISHIMARU, Yuichi INUBUSHI, Keiji NAGAI, Hiroyuki SHIRAGA, Takayoshi NORIMATSU, Hiroshi AZECHI and Kunioki MIMA, Plasma Fusion Res. 2, S1017 (2007).