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Title: Time-Resolved Hard X-Ray Spectrometer

Abstract

Wired array studies are being conducted at the SNL Z accelerator to maximize the x-ray generation for inertial confinement fusion targets and high energy density physics experiments. An integral component of these studies is the characterization of the time-resolved spectral content of the x-rays. Due to potential spatial anisotropy in the emitted radiation, it is also critical to diagnose the time-evolved spectral content in a space-resolved manner. To accomplish these two measurement goals, we developed an x-ray spectrometer using a set of high-speed detectors (silicon PIN diodes) with a collimated field-of-view that converged on a 1-cm-diameter spot at the pinch axis. Spectral discrimination is achieved by placing high Z absorbers in front of these detectors. We built two spectrometers to permit simultaneous different angular views of the emitted radiation. Spectral data have been acquired from recent Z shots for the radial and polar views. UNSPEC1 has been adapted to analyze and unfold the measured data to reconstruct the x-ray spectrum. The unfold operator code, UFO2, is being adapted for a more comprehensive spectral unfolding treatment.

Authors:
 [1];  [1];  [1];  [2]
  1. (NSTec)
  2. (Sandia)
Publication Date:
Research Org.:
National Security Technologies, LLC
Sponsoring Org.:
USDOE - National Nuclear Security Administration (NNSA)
OSTI Identifier:
917997
Report Number(s):
DOE/NV/25946-024; DOE/NV/11718-1280
TRN: US0805201
DOE Contract Number:  
DE-AC52-06NA25946
Resource Type:
Conference
Journal Name:
Hard X-Ray & Gamma Ray Detector Physics & Penetrating Radiation Systems VIII
Additional Journal Information:
Journal Name: Hard X-Ray & Gamma Ray Detector Physics & Penetrating Radiation Systems VIII
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ANISOTROPY; ENERGY DENSITY; PHYSICS; SILICON; SPECTROMETERS; X-RAY SPECTROMETERS

Citation Formats

Kenneth Moya, Ian McKennaa, Thomas Keenana, and Michael Cuneob. Time-Resolved Hard X-Ray Spectrometer. United States: N. p., 2007. Web.
Kenneth Moya, Ian McKennaa, Thomas Keenana, & Michael Cuneob. Time-Resolved Hard X-Ray Spectrometer. United States.
Kenneth Moya, Ian McKennaa, Thomas Keenana, and Michael Cuneob. Thu . "Time-Resolved Hard X-Ray Spectrometer". United States. https://www.osti.gov/servlets/purl/917997.
@article{osti_917997,
title = {Time-Resolved Hard X-Ray Spectrometer},
author = {Kenneth Moya and Ian McKennaa and Thomas Keenana and Michael Cuneob},
abstractNote = {Wired array studies are being conducted at the SNL Z accelerator to maximize the x-ray generation for inertial confinement fusion targets and high energy density physics experiments. An integral component of these studies is the characterization of the time-resolved spectral content of the x-rays. Due to potential spatial anisotropy in the emitted radiation, it is also critical to diagnose the time-evolved spectral content in a space-resolved manner. To accomplish these two measurement goals, we developed an x-ray spectrometer using a set of high-speed detectors (silicon PIN diodes) with a collimated field-of-view that converged on a 1-cm-diameter spot at the pinch axis. Spectral discrimination is achieved by placing high Z absorbers in front of these detectors. We built two spectrometers to permit simultaneous different angular views of the emitted radiation. Spectral data have been acquired from recent Z shots for the radial and polar views. UNSPEC1 has been adapted to analyze and unfold the measured data to reconstruct the x-ray spectrum. The unfold operator code, UFO2, is being adapted for a more comprehensive spectral unfolding treatment.},
doi = {},
journal = {Hard X-Ray & Gamma Ray Detector Physics & Penetrating Radiation Systems VIII},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {3}
}

Conference:
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