The division of energy among the various competing processes is discussed in the sequence from the collection of the solar flux, to the production of electrical power at a busbar output'' for the Shallow Solar Pond scheme. The solar collector utilizes shallow flowing water to transfer thermal energy to a hot water reservoir (at approximates 95 deg C). Several layers of plastic sheet cover the collection area to suppress heat losses. A Rankine Cycle thermodynamic system converts part of the heat energy to shaft work and thence to electricity. It would utilize a Freon gas turbine, along with evaporator, condenser and pressurizing pump; the rejected heat would be removed by an evaporation pond (at approximates 25 deg C). The fiducial system used for this analysis is assumed to have an area of 1 km/sup 2/. It would figuratively deliver an output of 81/2 MW; its mean efficiency for the reference input is 2.8%. The reference operating point corresponds to equinoctial noon, 33 deg N lat. (No attempt was made to include a summer- winter optimization). The various losses and power expenses are summarized, (MCW)

The Brookhaven Linac Isotope Producer (BLIP) produces neutrons from 200 MeV proton bombardment of a transparent (relative to 200 MeV protons) Be target. Threshold foil dosimetry techniques were utilized to characterize the BLIP neutron spectra which includes neutrons with energies greater than 15 MeV. Some operational characteristics of spallation neutron sources were also determined. The derived BLIP neutron spectrum has a hard component (neutrons between 6 to q2 MeV which peaks at 8 to 9 MeV) and a soft component characteristic of neutron scattering. Between 10 and 30% of the neutrons have energies below 0.25 MeV and less than 0.1% of the neutrons have energy in excess of 15 MeV. The derived neutron flux is 8.0 plus or minus 3 x 10/sup 9/ n/cm/sup 2/ mu C. (auth)

From national safety congress and exposition meeting; Chicago, Illinois, USA (29 Oct 1973). Results are reported from a survey of the local presidents of US Oil, Chemical, and Atomic Workers Union of the extent to which employees of research and development organizations are complying with Federal occupational safety and health standards. (CH)

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BS>Breaking-strength data from one-inch gage-length specimens and Weibull statistical techniques are used to characterize the probability of failure dependence on the length of brittle tungstencore and carbon-core boron monofilaments. Experimental results, using longer-gage-section specimens, are in good agreement with the failure probability predicted by the Weibull function. Strain-rate effects on the probability of failure of both materials are investigated over the quasistatic range from 3.3 x 10/sup -5/ to 3.3 x 10/sup 1/ sec/sup -1/. Failure probability is shown to be independent of the strain rate for both materials. (auth)

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During 1973, approximately 4.79 x 10/sup 11/ ft/sup 3/ of gaseous effluents were monitored for radioactivity by the stack sampling program. The sum of the measured radioactivity was as follows: alpha (assumed source--Pu)--1.34 x 10/sup -3/ Ci and beta--0.263 Ci.

This report provides a reassessment of the Kra Canal Project as prepared in December 1972. This reassessment differs in that thirty- four salvos with a total yield of about 170 MT were assumed; acceptable firing days were selected from actual meteorological data when the winds at all levels up to the expected debris cloud top blew toward the west plus or minus thirty degrees; and the lead in the devices was assumed to be from monazite sand. The doses are considerably less than those estimated in the earlier assessment.

This report contains a reassessment of the Kra Canal Project. This latest assessment differs from the original study in that: Thirty- four salvos with a total yield of about 170 MT were assumed; `Acceptable` firing days were selected from actual meteorological data when the winds at all levels up to the expected debris cloud top blew toward the west, +/- 30 degrees; and the lead in the devices was assumed to be from monazite sand. The doses are considerably less than those estimated in the earlier report. The reasons for this are: A longer trajectory to Sumatra was assumed such that the debris clouds traveled 1600 Km before crossing the west coast of Sumatra; Residents of the Nicobar Islands and Sumatra to our knowledge do not consume milk, hence the forage-cow-milk pathway is not included; The use of lead from monazite sands reduced the total dose; Some of the latest dose conversion constants used are smaller than those in the earlier report; and the effects of precipitation scavenging were based on an improved assessment.

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