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Recent developments in high charge state heavy ion beams at the LBL 88-inch Cyclotron

Description: Recent advances in design and operation of the internal PIG sources at the LBL 88-Inch Cyclotron have led to the development of high charge state (0.4 < or approx. = to Q/A < or approx. = to 0.5) heavy ion beams between lithium and neon with energies 20 < or approx. = to E/A < or approx. = to 32 MeV per nucleon, including fully stripped ions up to /sup 16/O/sup 8 +/. Total external intensities of these beams range from 10/sup 12/ particles/s for /sup 6/Li/sup 3 +/ to 0.1 particles/s for /sup 16… more
Date: September 13, 1978
Creator: Gough, R. A.; Clark, D. J. & Glasgow, L. R.
Partner: UNT Libraries Government Documents Department
open access

Recovery capability of multifilamentary superconductors with non-uniform void distribution

Description: The effects of several abnormal conditions resulting from a possible non-uniform void distribution in a multifilamentary and cabled superconductor on the cryogenic recovery capability of a triplex, a seven strand bundle and a 19 strand bundle were studied. For a triplex, if only one of the three strands was cooled, the maximum recoverable initial normal temperature is reduced by 1/3 of the value for the nominal case in which all the three strands are cooled equally. If the outer six strands of … more
Date: September 13, 1978
Creator: Lee, A. Y.
Partner: UNT Libraries Government Documents Department
open access

Automated controlled-flow air infiltration measurement system

Description: An automated, controlled-flow air infiltration measurement system is described. This system measures total air flow, a volume per unit time, due to infiltration in a test space. Data analysis is discussed and the mixing problem is analyzed. Different modes of operating the system are considered: concentration decay, continuous flow in a single chamber; and continuous flow in a multichamber enclosure. Problems associated with the use of nitrous oxide as a tracer gas are described.
Date: March 13, 1978
Creator: Condon, P. E.; Grimsrud, D. T.; Sherman, M. H. & Kammerud, R. C.
Partner: UNT Libraries Government Documents Department
open access

Large aperture components for solid state laser fusion systems

Description: Solid state lasers for fusion experiments must reliably deliver maximum power to small (approximately .5 mm) targets from stand-off focal distances of 1 m or more. This requirement places stringent limits upon the optical quality, resistance to damage, and overall performance of the several major components--amplifiers, Faraday isolators, spatial filters--in each amplifier train. Component development centers about achieving (1) highest functional material figure of merit, (2) best optical qual… more
Date: September 13, 1978
Creator: Simmons, W.W.
Partner: UNT Libraries Government Documents Department
open access

Analytical approaches to and interpretations of data on time, rate, and cause of death of mice exposed to external gamma irradiation

Description: Young adult male and female mice of inbred strains, A, BALB/c, C57BL/6, and C57L, and B6CF/sub 1/ and F/sub 2/ hybrids were exposed to daily duration-of-life external /sup 60/Co ..gamma.. irradiation. Age at death was recorded, and most decedents were necropsied to ascertain occurrence of major types of tumors. Age- and cause-specific mortality or incidence rates were derived, and their regressions on age were fitted with polynomial equations by least-squares procedures. Age-specific and age-ad… more
Date: March 13, 1978
Creator: Grahn, D.; Sacher, G.A.; Lea, R.A.; Fry, R.J.M. & Rust, J.H.
Partner: UNT Libraries Government Documents Department
open access

Polymeric and composite materials for use in systems utilizing hot, flowing geothermal brine. II

Description: Further progress is reported on a continuing experimental program designed to select high-performance polymeric materials for use in geothermal power plants. In field tests 12 nozzles, 27 wear plates, and 2 types of polymer lined pipe were tested. Nozzles made of Teflons TFE and PFA, Tefzel, Ryton PPS and H-Resin/carbon cloth were little changed except for some scaling. The fluorocarbons scaled least rapidly. All blade type wear plates eroded, those based on Tefzel, PPQ, and PPS the least. Fluo… more
Date: April 13, 1978
Creator: Lorensen, L.E. & Walkup, C.M.
Partner: UNT Libraries Government Documents Department
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