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Imagery from Infrared Scanning of the East and Southwest Rift Zones of Kilauea and the Lower Portion of the Southwest Rift Zone of Mauna Loa, Island of Hawaii

Description: From July 31 through August 4, 1973 night time flights for obtaining infrared imagery along the east and southwest rift zones of Kilauea and the southwest rift zone of Mauna Loa were undertaken on the island of Hawaii. Flights were also made on Hualalai and Kohala volcanoes but because of inconclusive results, they are not included in this report. Ground control stations had been established during daylight hours several days prior to starting the flight program. Students stationed at the ground central points guided the aircraft on predetermined flight paths by the use of directional lights which were visible to the plane's navigator. Results of the infrared scanning program are considered to be very successful. Events leading up to the final imagery on 8 x 10 color prints are discussed. The sum of $23,900 was designated by the NSF to be expended on aerial photogeologic work on the Hawaii Geothermal Project. Infrared scanning was the only aerial technique employed in this phase.
Date: January 1, 1974
Creator: Abbott, A. T.
Partner: UNT Libraries Government Documents Department

Distributions of Rapidity Intervals, Jet Ranges and Maximum Rapidity Gaps in Proton - Proton Interactions at 200-GeV/c

Description: The semiinclusive reaction p+p {yields} n charged particles + anything was investigated with nuclear emulsions irradiated with 200 GeV/c protons at the NAL accelerator (Batavia, US). They measured angles {Theta} of all charged particles. In every event particles were ordered on rapidity which was approximated by the value y = -lntg {Theta}lab/2. In every event particles were numbered on increasing the rapidity. Let us consider, for example, distributions of ordered rapidities and distributions of differences of various ordered rapidities and try to make a physical conclusion from the analysis of these distributions.
Date: January 1, 1974
Creator: Adamovich, M.I.; Dobrotin, N.A.; Larionova, V.G.; Tretyakova, M.I.; Kharlamov, S.P.; Chernyavsky, M.M. et al.
Partner: UNT Libraries Government Documents Department

Analytic pulsar models

Description: An analytic and fully general relativistic solution to Einstein's field equations is given. This analytic model of a slowly rotating neutron star can describe differentially as well as uniformly rotating stars. (auth)
Date: January 16, 1974
Creator: Adams, R.C.; Cohen, J.M.; Adler, R.J. & Sheffield, C.
Partner: UNT Libraries Government Documents Department

Acquisition, processing and display of gated cardiac scintigrams

Description: An improved method for non-traumatic and essentially noninvasive evaluation of left ventricular (LV) function with /sup 99m/Tc as the tracer was developed. This method combines previously used EKG gating techniques for cardiac blood pool visualization with new computerized acquisition, processing and display techniques. An Anger camera, a small computer, and a physiological synchronizer are used to acquire a sequence of eight scintigrams which span the entire cardiac cycle. Under our present protocol two twenty-minute sequences are obtained, one an LAO (50$sup 0$) projection, the other an RAO (30$sup 0$) projection. Subsequently these images are processed on-line with a digital filter to increase definition of the cardiac borders. The eight images are then displayed sequentially on a specially designed electronic monitor to give an impression of the beating heart somewhat analogous to that obtained with invasive contrast angiography. (auth)
Date: January 1, 1974
Creator: Alpert, N. M.; Chesler, D. A.; McKusick, K. A.; Potsaid, M. S.; Pohost, G. M. & Dinsmore, R. A.
Partner: UNT Libraries Government Documents Department

Energy deposition by 45-GeV photons in H, Be, Al, Cu, and Ta

Description: Electron--photon cascade calculations have been carried out for zero- width beams of 45-GeV photons normally incident on semi-infinite slabs of hydrogen, beryllium, aluminum, copper, and tantalum. The energy deposition is given as a function of both depth and radius in the slabs. (auth)
Date: January 1, 1974
Creator: Alsmiller, R.G. Jr. & Barish, J.
Partner: UNT Libraries Government Documents Department