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Title: High energy X-ray pinhole imaging at the Z facility

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4953004· OSTI ID:1259535

A new high photon energy (hν > 15 keV) time-integrated pinhole camera (TIPC) has been developed as a diagnostic instrument at the Z facility. This camera employs five pinholes in a linear array for recording five images at once onto an image plate detector. Each pinhole may be independently filtered to yield five different spectral responses. The pinhole array is fabricated from a 1-cm thick tungsten block and is available with either straight pinholes or conical pinholes. Each pinhole within the array block is 250 μm in diameter. The five pinholes are splayed with respect to each other such that they point to the same location in space, and hence present the same view of the radiation source at the Z facility. The fielding distance from the radiation source is 66 cm and the nominal image magnification is 0.374. Initial experimental results from TIPC are shown to illustrate the performance of the camera.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; 165733; 173104
OSTI ID:
1259535
Alternate ID(s):
OSTI ID: 1420628
Report Number(s):
SAND-2015-10135J; RSINAK; 608469
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 6; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (17)

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Contrasting physics in wire array z pinch sources of 1-20 keV emission on the Z facility journal May 2014
Imaging of high-energy x-ray emission from cryogenic thermonuclear fuel implosions on the NIF journal October 2012
Implications of high-energy photons and electrons on target preheat at the Sandia “Z” facility journal January 1999
Opacity and gradients in aluminum wire array z-pinch implosions on the Z pulsed power facility journal March 2014
K-shell emission trends from 60 to 130 cm/ μ s stainless steel implosions journal October 2013
A New Method of Spectroscopy for Faint X-Radiations journal January 1928
Analysis and implementation of a space resolving spherical crystal spectrometer for x-ray Thomson scattering experiments journal April 2015
High-energy x-ray response of photographic films: models and measurement journal January 1986
Evaluation of the sensitivity and fading characteristics of an image plate system for x-ray diagnostics journal November 2008
Signatures of hot electrons and fluorescence in Mo Kα emission on Z journal March 2014

Cited By (3)

Coarse spectral characterization of warm x-rays at the Z facility using a filtered thermoluminescent dosimeter array journal April 2017
A Wolter imager on the Z machine to diagnose warm x-ray sources journal October 2018
Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories journal October 2018

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