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Title: Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.

Abstract

Minimization of the radiographic spot size and maximization of the radiation dose is a continuing long-range goal for development of electron beam driven X-ray radiography sources. In collaboration with members of the Atomic Weapons Establishment(AWE), Aldermaston UK, the Advanced Radiographic Technologies Dept. 1645 is conducting research on the development of X-ray sources for flash core-punch radiography. The Hydrodynamics Dept. at AWE has defined a near term radiographic source requirement for scaled core-punch experiments to be 250 rads{at}m with a 2.75 mm source spot-size. As part of this collaborative effort, Dept. 1645 is investigating the potential of the Self-Magnetic-Pinched (SMP) diode as a source for core-punch radiography. Recent experiments conducted on the RITS-6 accelerator [1,2] demonstrated the potential of the SMP diode by meeting and exceeding the near term radiographic requirements established by AWE. During the demonstration experiments, RITS-6 was configured with a low-impedance (40 {Omega}) Magnetically Insulated Transmission Line (MITL), which provided a 75-ns, 180-kA, 7.5-MeV forward going electrical pulse to the diode. The use of a low-impedance MITL enabled greater power coupling to the SMP diode and thus allowed for increased radiation output. In addition to reconfiguring the driver (accelerator), geometric changes to the diode were also performed whichmore » allowed for an increase in dose production without sacrificing the time integrated spot characteristics. The combination of changes to both the pulsed power driver and the diode significantly increased the source x-ray intensity.« less

Authors:
; ; ; ;  [1];  [2]
  1. Voss Scientific, Albuquerque, NM
  2. K-Tech Corporation, Albuquerque, NM
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
920805
Report Number(s):
SAND2007-6324
TRN: US0800955
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 24 POWER TRANSMISSION AND DISTRIBUTION; 43 PARTICLE ACCELERATORS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; ACCELERATORS; ELECTRON BEAMS; HYDRODYNAMICS; MINIMIZATION; NUCLEAR WEAPONS; POWER TRANSMISSION LINES; PRODUCTION; RADIATION DOSES; RADIATIONS; X-RAY RADIOGRAPHY; X-RAY SOURCES; X-ray-Safety measures.; Radiography.

Citation Formats

Cordova, Steve Ray, Rovang, Dean Curtis, Portillo, Salvador, Oliver, Bryan Velten, Bruner, Nichelle Lee, and Ziska, Derek Raymond. Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.. United States: N. p., 2007. Web. doi:10.2172/920805.
Cordova, Steve Ray, Rovang, Dean Curtis, Portillo, Salvador, Oliver, Bryan Velten, Bruner, Nichelle Lee, & Ziska, Derek Raymond. Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.. United States. https://doi.org/10.2172/920805
Cordova, Steve Ray, Rovang, Dean Curtis, Portillo, Salvador, Oliver, Bryan Velten, Bruner, Nichelle Lee, and Ziska, Derek Raymond. Mon . "Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.". United States. https://doi.org/10.2172/920805. https://www.osti.gov/servlets/purl/920805.
@article{osti_920805,
title = {Demonstration of the self-magnetic-pinch diode as an X-ray source for flash core-punch radiography.},
author = {Cordova, Steve Ray and Rovang, Dean Curtis and Portillo, Salvador and Oliver, Bryan Velten and Bruner, Nichelle Lee and Ziska, Derek Raymond},
abstractNote = {Minimization of the radiographic spot size and maximization of the radiation dose is a continuing long-range goal for development of electron beam driven X-ray radiography sources. In collaboration with members of the Atomic Weapons Establishment(AWE), Aldermaston UK, the Advanced Radiographic Technologies Dept. 1645 is conducting research on the development of X-ray sources for flash core-punch radiography. The Hydrodynamics Dept. at AWE has defined a near term radiographic source requirement for scaled core-punch experiments to be 250 rads{at}m with a 2.75 mm source spot-size. As part of this collaborative effort, Dept. 1645 is investigating the potential of the Self-Magnetic-Pinched (SMP) diode as a source for core-punch radiography. Recent experiments conducted on the RITS-6 accelerator [1,2] demonstrated the potential of the SMP diode by meeting and exceeding the near term radiographic requirements established by AWE. During the demonstration experiments, RITS-6 was configured with a low-impedance (40 {Omega}) Magnetically Insulated Transmission Line (MITL), which provided a 75-ns, 180-kA, 7.5-MeV forward going electrical pulse to the diode. The use of a low-impedance MITL enabled greater power coupling to the SMP diode and thus allowed for increased radiation output. In addition to reconfiguring the driver (accelerator), geometric changes to the diode were also performed which allowed for an increase in dose production without sacrificing the time integrated spot characteristics. The combination of changes to both the pulsed power driver and the diode significantly increased the source x-ray intensity.},
doi = {10.2172/920805},
url = {https://www.osti.gov/biblio/920805}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {10}
}