skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A compact source producing doses of kilorad/minute delivered below 1A in pulses of nanoseconds duration

Abstract

A flash x-ray source was designed, developed and characterized and is presented as an alternative generator to existing machines. It combines many desirable, and heretofore mutually exclusive, characteristics of several currently available devices into a single compact system. Key to the development of such a resource was the incorporation of three critical subassemblies: (1) a cold-cathode vacuum diode; (2) a Blumlein pulse-forming line; and (3) a commutation system capable of operation at high-repetition rates. Devices of different-length Blumleins, having a range of capacitance and voltage capabilities were constructed to establish those parameters having the greater impact on performance. Outputs from more than one device could be synchronized, yielding very high fluence levels directed towards a target. Spectral characteristics of these generators were also determined, using an energy-dispersive spectrometer. It was found that the ratio of K-line energy to the total output energy was 32%. The combination of all aspects resulted in a source with an energy range that spanned from 5 to 100 keV, average powers, and a spectral flux exceeding 0.5 W and 10{sup 11} photons/sec/0.1% bandwidth, respectively.

Authors:
Publication Date:
Research Org.:
Texas Univ., Dallas, TX (USA)
OSTI Identifier:
5283211
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; X-RAY EQUIPMENT; SYNCHRONIZATION; X-RAY SOURCES; DESIGN; PULSES; TESTING; EQUIPMENT; RADIATION SOURCES; 070201* - Radiation Sources- Design, Fabrication & Operation; 655002 - Medical Physics- Radiation Source Calibration & Standardization

Citation Formats

Bowen, T S. A compact source producing doses of kilorad/minute delivered below 1A in pulses of nanoseconds duration. United States: N. p., 1988. Web.
Bowen, T S. A compact source producing doses of kilorad/minute delivered below 1A in pulses of nanoseconds duration. United States.
Bowen, T S. 1988. "A compact source producing doses of kilorad/minute delivered below 1A in pulses of nanoseconds duration". United States.
@article{osti_5283211,
title = {A compact source producing doses of kilorad/minute delivered below 1A in pulses of nanoseconds duration},
author = {Bowen, T S},
abstractNote = {A flash x-ray source was designed, developed and characterized and is presented as an alternative generator to existing machines. It combines many desirable, and heretofore mutually exclusive, characteristics of several currently available devices into a single compact system. Key to the development of such a resource was the incorporation of three critical subassemblies: (1) a cold-cathode vacuum diode; (2) a Blumlein pulse-forming line; and (3) a commutation system capable of operation at high-repetition rates. Devices of different-length Blumleins, having a range of capacitance and voltage capabilities were constructed to establish those parameters having the greater impact on performance. Outputs from more than one device could be synchronized, yielding very high fluence levels directed towards a target. Spectral characteristics of these generators were also determined, using an energy-dispersive spectrometer. It was found that the ratio of K-line energy to the total output energy was 32%. The combination of all aspects resulted in a source with an energy range that spanned from 5 to 100 keV, average powers, and a spectral flux exceeding 0.5 W and 10{sup 11} photons/sec/0.1% bandwidth, respectively.},
doi = {},
url = {https://www.osti.gov/biblio/5283211}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}

Thesis/Dissertation:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this thesis or dissertation.

Save / Share: