Atlas Axial Radiography

Frogget, B. C.; Esquibel, D. L.; Jeffs, C. S.; Lare, G. A.; Malone, R. M.; Sutton, J. T.; Gomez, Jr, G. H.; Theuer, K. E.; Tom, Jr, C. Y.; Anderson, B. G.; Oro, D. M.; Studebaker, J. K.; Westley, D. T.

Atlas Axial Radiography

Active / Technical Report | Accession Number: ADA635827 |

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Abstract:

The Atlas pulsed-power machine is a 23-megajoule capacitor bank that delivers 28 mega-amperes in a 5 microsecond rise-time pulse into a cylindrical imploding liner, which often contains a target. It is used to study the hydrodynamic behavior of various materials under well-controlled high-energy conditions. X-ray imaging or radiography is used to infer trajectories and velocities of the shockwave and the material interfaces in the target. The axial radiography diagnostic records four high-speed flash x-ray snapshots through the target axis during an experiment. These images provide important benchmarks for various hydrodynamic codes currently used to predict the behavior of shocked materials. Four Marx-driven x-ray diode sources, designed by Los Alamos National Laboratory LANL and fabricated by Bechtel Nevada, are used. Each source has a pulse duration of 20 nanoseconds full-width half-maximum FWHM that thereby freezes the motion of the target. The x-ray images are converted into blue visible light by a scintillator. Two 8-inch-diameter doublet lenses relay this image 6 meters away into a microchannel plate image intensified framing camera, contained in a screen box. The machine energy destroys the scintillator and sometimes the first relay doublet. The optical relay is realigned for each experiment. Calibration images are stored for each shot. The image data are sent over fiber-optic cables for remote recording.

Author(s):

Frogget, B. C. ; Esquibel, D. L. ; Jeffs, C. S. ; Lare, G. A. ; Malone, R. M. ; Sutton, J. T. ; Gomez, Jr, G. H. ; Theuer, K. E. ; Tom, Jr, C. Y. ; Anderson, B. G. ; Oro, D. M. ; Studebaker, J. K. ; Westley, D. T.

Author Organization(s):

BECHTEL NEVADA INC LAS VEGAS NV

Descriptive Note:

Conference paper

Supplementary Note:

Prepared in cooperation with Los Alamos National Laboratory, Los Alamos, NM. Presented at 2005 IEEE Pulsed Power Conference in Monterey CA on 13-17 Jun 2005 and published in proceedings of the same, p1388-1391; 0-7803-9189-6/05. See also ADM002371, 2013 IEEE Pulsed Power Conference, Digest of Technical Papers 1976-2013, and Abstracts of the 2013 IEEE International Conference on Plasma Science. The original document contains color images.

Pagination:

0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

Distribution Statement:

Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

DOE/NV/11718-1037

Contract/Grant Number(s):

DE-AC08-96NV11718

Monitor Series:

NNSA/DC

Subject Terms

Joint Capability Areas:

JCA_1.2.7_Experimentation; JCA_4.5.1_Contract Support Integration; JCA_4.5_Operational Contract Support

Modernization Areas:

Microelectronics

Communities of Interest:

Energy and Power Technologies

Descriptor(s):

*RADIOGRAPHY, *SHOCK WAVES, HIGH ENERGY, HYDRODYNAMIC CODES, X RAY PHOTOGRAPHY

Field(s)/Group(s):

Operations Research, Test Facilities, Equipment and Methods, Nuclear Physics and Elementary Particle Physics, Electromagnetic Pulses

Keyword(s):

AXIAL RADIOGRAPHY, PHYSICS MODELS, SHOCKED MATERIALS, ATLAS PULSED POWER MACHINE (LOS ALAMOS NATIONAL LABORATORY)

Report Date:

2005 Jun 01

Creation Date:

2016 Aug 17