Assembled papers regarding advances in irradiation capsule technology.

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Areas of work reported include: general radiation effects; toxicity of radioelements; combating detrimental effects of radiation; studies at the molecular and cellular level; environmental radiation studies; atmospheric radioactivity and fallout; marine sciences; radiological and health physics; and radiation instruments.

Report about the study of technical and economic potential of small nuclear power plants; this volume summarizes data collected regarding the economics for nuclear plant and fuel performance capabilities.

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Data are summarized on levels of radioactivity in environmental samples collected at Hanford during 1966, including detailed data on samples collected during December. Data are included on the radioactivity in fallout from Chinese and Russian nuclear weapons test, samples of drinking water and Columbia River water, the /sup 56/Mn content of Columbia River water sampled at various locations, the /sup 131/I content of gaseous wastes and surface waters, and the radioactivity of soil samples from the chemical separations liquid waste treatment and disposal area. The radiation dose to personnel during the year from all enviromnentl sources was estimated to be less than 0.3 percent of the applicable limits. (CH)

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The diffusivities presented in the present paper are determined using the same technique and the calculated diffusivities for both TaC and Ta2C are found to be in good agreement with Resnick et. al.

This report presents details of the status of special reactor process tube loadings for the month of March 1967.

We investigated electron and gamma spectra of mixtures of isotopes of curium. This was done on a beta spectrometer with double focusing at an angle of {pi}{radical}2 and on a scintillation gamma spectrometer with a 40 {times} 40 mm NAI(Tl) single crystal detector. The observed electron spectrum are interpolated and presented. Also, experimental results of the ratio of conversion at L and M subshells are presented and compared to theoretical values.

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The following report presents data from the SALMON experiment, an experiment made to study the mechanics of a tamped nuclear detonation in a salt dome in terms of generated shock waves as they are propagated out of the dome and progressively through the crust and mantle of the earth. This experiment was made in the Tatum salt dome, Mississippi, October 22, 1964.

This report is about soviet troop withdrawal from eastern Europe.

For zero net wind transport conditions the doses obtained with th AI particle size distributions are not significantly different from those obtained with the BMI distribution. Small (< 20 micron) particle data are needed.

The objectives of this test are to determine if autoclave film has an important role in the groove and ledge corrosion mechanism, to evaluate the performance of unautoclaved fuel in corrosion environments of different severities, and to verify the importance of process water pH in regulating the frequency and severity of groove and ledge corrosion.

The purpose of this memorandum is to describe the concepts for accomplishing localized tailoring of thermal neutron flux. The application of fuel displacement and enrichment techniques in lattice cells surrounding a test facility may accelerate sample irradiation rates by an order of magnitude or more above those in the normal reactor environment. Thus, test irradiation conditions may be established by such flux tailoring techniques which are not indicative of the specific flux and power conditions characteristic of the reactor loading as a whole.

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