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Title: Measurements of pulsed radiation-induced fiber fluorescence and darkening

Abstract

Spectral temperature measurements were made of the DIAMOND FORTUNE event at the Nevada Test site. A large core fiber was used to gather light from the fireball produced in a large diameter cavity. To correct these spectral data for radiation effects on the fiber, a Fiber Monitor consisting of another fiber optic cable identical to that used to gather fireball light (but made blind to it) was used to measure changes in the fiber optic spectral transmission during the event. The data on the Fiber Monitor show a narrow induced-light pulse, followed by a long ({approximately}1.5 ms) decay fluorescence signal. Following these induced signals a reduction in the preshot transmitted signals, caused by fiber darkening, was measured. DIAMOND FORTUNE event data will be presented and compared with data obtained fro the Sandia National Laboratories (SNL) Hermes III gamma simulator and the SNL SPR III pulsed neutron facility. The radiation-induced fiber darkening thus determined will be presented.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org.:
Department of Defense, Washington, DC (United States)
OSTI Identifier:
10160321
Report Number(s):
SAND-93-3942C; CONF-940723-1
ON: DE94013793; BR: GB0103012; TRN: 94:012988
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Annual meeting of the Society of Photo-Optical Instrumentation Engineers,San Diego, CA (United States),24-29 Jul 1994; Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 47 OTHER INSTRUMENTATION; 36 MATERIALS SCIENCE; NUCLEAR EXPLOSIONS; NUCLEAR EXPLOSION DETECTION; OPTICAL FIBERS; PHYSICAL RADIATION EFFECTS; OPTICAL PYROMETERS; PERFORMANCE TESTING; TEMPERATURE MEASUREMENT; NEVADA TEST SITE; FIBER OPTICS; FLUORESCENCE; SHIELDING; 450300; 440500; 440600; 360206; THERMAL INSTRUMENTATION; OPTICAL INSTRUMENTATION; RADIATION EFFECTS

Citation Formats

Lockwood, G J, Bishop, L B, and Selph, M M. Measurements of pulsed radiation-induced fiber fluorescence and darkening. United States: N. p., 1993. Web.
Lockwood, G J, Bishop, L B, & Selph, M M. Measurements of pulsed radiation-induced fiber fluorescence and darkening. United States.
Lockwood, G J, Bishop, L B, and Selph, M M. 1993. "Measurements of pulsed radiation-induced fiber fluorescence and darkening". United States.
@article{osti_10160321,
title = {Measurements of pulsed radiation-induced fiber fluorescence and darkening},
author = {Lockwood, G J and Bishop, L B and Selph, M M},
abstractNote = {Spectral temperature measurements were made of the DIAMOND FORTUNE event at the Nevada Test site. A large core fiber was used to gather light from the fireball produced in a large diameter cavity. To correct these spectral data for radiation effects on the fiber, a Fiber Monitor consisting of another fiber optic cable identical to that used to gather fireball light (but made blind to it) was used to measure changes in the fiber optic spectral transmission during the event. The data on the Fiber Monitor show a narrow induced-light pulse, followed by a long ({approximately}1.5 ms) decay fluorescence signal. Following these induced signals a reduction in the preshot transmitted signals, caused by fiber darkening, was measured. DIAMOND FORTUNE event data will be presented and compared with data obtained fro the Sandia National Laboratories (SNL) Hermes III gamma simulator and the SNL SPR III pulsed neutron facility. The radiation-induced fiber darkening thus determined will be presented.},
doi = {},
url = {https://www.osti.gov/biblio/10160321}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 31 00:00:00 EST 1993},
month = {Fri Dec 31 00:00:00 EST 1993}
}

Conference:
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