From abstract: Absolute cross sections for the production of charged secondary particles is the bombardments of aluminum, nickel, silver, and gold by 332-Mev protons, 187-deuterons, and 380-Mev alpha particles have been determined.

This is the monthly report for the Hanford Laboratories Operation, March, 1956. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology; financial activities, visits, biology operation, physics and instrumentation research, employee relations, pile technology, safety and radiological sciences are discussed.

Memorandum presenting the results of an experimental investigation to determine the pressure-distribution characteristics of a conically cambered wing with and without pylon-mounted engine nacelles for Mach numbers of 1.6 and 1.9. The pressure data obtained during this investigation indicate that the low-pressure region existing on the upper surface over the forward part of the wing was spread over a larger proportion of the local chord than would be the case for an uncambered wing.

A preliminary design study, Phase I of the ALPR . project, has been made in accordance with the Army Reactors Branch specifications for a nuclear ''package'' power plant with a 200 to 260 kw electric and 400 kw heating capacity..The plant is to be installed at the Idaho Reactor Testing Station as a prototype for remote arctic installations. The ''conventiornl'' power plant as well as the exterior reactor components are described, and cost estimates are given. ''Nuclear'' components of the reactor are described. (auth)

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All HRT process piping and equipment is contained in a large tank and flanged connections with stainless steel ring gaskets are used where needed to permit the removal of values and items of equipment. Underwater remote maintenance is to be employed and special provisions are required for indicating and locating leaks at all mechanical joints in the process system. Each joint is monitored and a signal is given when a leak occurs. The valve operator stems are sealed with stainless steel bellows and a means of detecting a leak in the bellows has been included. (auth)

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Progress report of the Oak Ridge National Laboratory Biology Division providing updates on various projects, experiments, and other work. This report includes a summary of scholarly output from the division and departmental activities in cytology and genetics, mammalian genetics and development, microbial protection and recovery, mammalian recovery, pathology and physiology, general physiology, biochemistry, enzymology and photosynthesis, microbiology, plant biochemistry, and biophysics.

Memorandum presenting the results of an experimental investigation to determine the pressure-distribution characteristics of a conically cambered wing with and without pylon-mounted engine nacelles for Mach numbers of 1.6 and 1.9. Wing airfoil sections in the streamwise direction were composed of NACA 0004.08-63 sections symmetrically distributed about a cambered surface conical about the wing apex. Results regarding pressure distribution and loading are provided.

Memorandum presenting an investigation of the effect of Mach number variation from 1.8 to 7.4 on boundary-layer transition on a slender fin-stabilized ogive-cylinder body in free flight at a constant length Reynolds number of 13.8 million. Results showed that increasing Mach number had a very favorable effect of increasing the extent of the laminar boundary layer for a given surface roughness. Results regarding Mach number and surface roughness, effects of pressure rise, and long laminar runs are provided.

Memorandum presenting an investigation in the 9-inch supersonic tunnel to determine the effects of a sonic jet exhausting from a wing-mounted nacelle on the body drag of a body-wing-nacelle combination for various longitudinal, spanwise, and vertical nacelle locations and jet pressure ratios. The results indicated that the maximum variations in the total and fore drags of the body due to jet interference were about one-fourth of the basic body drag.

Report presenting an investigation made in the 4- by 4-foot supersonic pressure tunnel to determine the effects of body camber and body indentation on the longitudinal characteristics of a delta-wing-body combination at Mach number 1.61. Three bodies were tested with a 3-percent-thick 60 degree delta wing: a basic parabolic body, a body indented so as to have an improved wing-body area distribution at Mach number 1.8, and a body which was both indented and cambered. Results indicated that none of the changes had any appreciable effect at Mach number 1.61 on the minimum drag or maximum lift-drag ratios of the configurations tested.

"Two experiments concerning the transonic area rule have shown that the wing of a configuration has a powerful effect as a dividing plate. The approximation of store plus interference wave drag (near a Mach number of 1) for underwing stores was more accurately made by considering the normal area development of the configuration above and below the wing separately instead of the total area development. Indenting a fuselage on only one side of the wing to allow for the exposed wing volume gave appreciably less pressure-drag reduction than that obtained with a symmetrically indented fuselage" (p. 1).

A preliminary design study, Phase I of the ALPR project, has been made in accordance with the Army Reactors Branch specifications for a nuclear "package" power plant with a 200-260-kw electric and 400 kw heating capacity. The plant is to be installed at the Idaho Reactor Testing Station as a prototype for remote arctic installations. The "conventional" power plant as well as the exterior reactor components are described in the accompanying report and cost estimate by Pioneer Service and Engineering Company, Architect-Engineers for the project."Nuclear" components of the reactor are designed by Argonne National Laboratory as described in the present report.