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Optical and environmentally protective coatings for potassium dihydrogen phosphate (KDP) harmonic converter crystals

Potassium dihydrogen phosphate (KDP) crystals have been used as harmonic converters on the Nova laser at LLNL for over six years. All crystals were coated with a single layer, quarterwave AR coating of porous silica with a refractive index of 1.22. This was prepared by a sol-gel process and was applied from a colloidal suspension by spin coating at room temperature. A few crystals were also coated with a methyl silicone coating prior to the application of the AR coating for environmental protec… more

Date: June 24, 1991

Creator: Thomas, I. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Fundamental studies of catalytic processing of synthetic liquids. Quarterly progress report, April 1, 1991--June 30, 1991

This project revolves around understanding the fundamental processes involved in the catalytic removal of harmful oxygenated organics present in coal liquids. We are modelling the complex type of sulfided Mo catalyst proposed for these reactions with simple single crystal surfaces. These display a controlled range and number of reaction sites and can be extensively characterized by surface science techniques. We then investigate the reaction pathways for representative simple oxygenates upon th… more

Date: June 24, 1991

Creator: Watson, P. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

Doctoral Recital: 1991-06-24 – Kim Stirzaker, flute

Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

Date: June 24, 1991

Duration: 44 minutes 49 seconds

Creator: Stirzaker, Kim

Item Type: Sound

Partner: UNT Music Library

captions transcript

[News Clip: Fireworks VO]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6 P.M.

Date: June 24, 1991

Duration: 38 seconds

Creator: KXAS-TV (Television station : Fort Worth, Tex.)

Item Type: Video

Partner: UNT Libraries Special Collections

open access

ANS-8. 23: Criticality accident emergency planning and response

A study group has been formed under the auspices of ANS-8 to examine the need for a standard on nuclear criticality accident emergency planning and response. This standard would be ANS-8.23. ANSI/ANS-8.19-1984, Administrative Practices for Nuclear Criticality Safety, provides some guidance on the subject in Section 10 titled -- Planned Response to Nuclear Criticality Accidents. However, the study group has formed a consensus that Section 10 is inadequate in that technical guidance in addition t… more

Date: June 24, 1991

Creator: Pruvost, Norman L.

Item Type: Article

Partner: UNT Libraries Government Documents Department