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open access

Low-exposure tritium radiotoxicity in mammals

Description: Studies of tritium radiotoxicity involving chronic /sup 3/H0H exposures in mammals demonstrate in both mice and monkeys that biological effects can be measured following remarkably low levels of exposure - levels in the range of serious practical interest to radiation protection. These studies demonstrate also that deleterious effects of /sup 3/H beta radiation do not differ significantly from those of gamma radiation at high exposures. In contrast, however, at low exposures tritium is signific… more
Date: February 11, 1982
Creator: Dobson, R.L.
Partner: UNT Libraries Government Documents Department
open access

Detection and sizing of underbead cracks using ultrasonic nondestructive examination

Description: Ultrasonic nondestructive examination (NDE) will detect three mil deep underbead cracks in welds joining thin walled iridium hemishells. A correlation was developed to relate the amplitude of the signal reflected from the crack with crack wall area. The observed cracks occur in the weld underbead in the arc taper area during encapsulation of /sup 238/PuO/sub 2/ pellets for thermoelectric generators used in deep space exploration.
Date: February 11, 1982
Creator: Scarbrough, J.D. & Wierzbicki, W.M.
Partner: UNT Libraries Government Documents Department
open access

Front-lighted shadowgraphic method and apparatus

Description: High contrast silhouette images of a substantially opaque object are obtained using front illumination techniques. The object is frontally illuminated by light of a first polarization. A frontal surface of the object reflects the incident light to an observation station. The polarization of incident light bypassing the object and incident on a background is changed. The background light is reflected to the observation station, and the intensity of one of the two, differently polarized, reflecte… more
Date: February 11, 1982
Partner: UNT Libraries Government Documents Department
open access

Improved eddy current angle probe

Description: Apparatus is described for detecting flaws in a tubular workpiece in a single scan. The coils of a dual coil bobbin eddy current inspection probe are wound at a 45/sup 0/ angle to the transverse axis of the probe, one coil having an angular position about the axis about 90/sup 0/ relative to the angular position of the other coil, and the angle of intersection of the planes containing the coils being about 60/sup 0/.
Date: February 11, 1982
Creator: Nance, R.A.; Hartley, W.H. & Caffarel, A.J.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Cancer]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 1:00 p.m.
Duration: 1 minute 38 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Mexia hearing]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 37 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Rookies / NFL]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 35 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Negative-ion generator

Description: This negative ion generator comprises a magnetically insulated transmission line having at least one hole in the cathode to permit negative ions to escape the transmission line, and a device for removing electrons from the negative ion flow.
Date: February 11, 1982
Creator: Stinnett, R.W.
Partner: UNT Libraries Government Documents Department
open access

Cyclotron Axial Ion-Beam-Buncher System

Description: Adiabatic ion bunching is achieved in a cyclotron axial ion injection system through the incorporation of a radio frequency quadrupole system, which receives ions from an external ion source via an accelerate-decelerate system and a focusing einzel lens system, and which adiabatically bunches and then injects the ions into the median plane of a cyclotron via an electrostatic quadrupole system and an inflection mirror.
Date: February 11, 1982
Creator: Hamm, Robert W.; Swenson, Donald A. & Wangler, Thomas P.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Fort Parker Extra]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 2 minutes 59 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Car thefts]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 03 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: NFL rookies #2]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 1 minute 46 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Penalties folo]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 30 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Euless runway]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 10:00 p.m.
Duration: 1 minute 07 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Air wars]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 2 minutes 06 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Lincoln Awards]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 10:00 p.m.
Duration: 1 minute 18 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Academy Awards]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 1 minute 15 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: City budget]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 1 minute 28 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Murder folo]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 17 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Miller bond]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 1 minute 13 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Pot holes]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 6:00 p.m.
Duration: 1 minute 42 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Pregnancy law]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 11, 1982, 5:00 p.m.
Duration: 1 minute 51 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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