Program PF provides a method for a 7600 user to copy his disk files to magnetic tape(s). When at a later time the user wishes to attach a disk file which has been purged, program PF will retrieve the file from an archive tape and catalog it on disk. A disk file called ARCHIVEDIRECTORY, which contains information about each file, is maintained by PF. The program CNDENSE, which purges specified files from user archive tapes and consolidates the remaining ones, is also briefly described. (RWR)

Results of recently concluded investigations of infrared laser induced photoionization of very high lying even parity levels in atomic uranium are presented. Behavior of both Rydberg and valence states is described.

The fabrication steps are examined for a complex glass target which is designated as a Ball-in-Plate or Saturn target. The Ball-in-Plate target consists of a hollow, D-T filled glass sphere mounted in a thin glass plate. The glass plate is coplaner with a diametral plane of the sphere.

In the proposed Molten Salt Breeder Reactor flowsheet, a fraction of the rare earth fission products is removed from the fuel salt in mass transfer cells. To obtain design parameters for this extraction, the effect of cell size, blade diameter, phase volume, and agitation rate on the mass transfer for a high density ratio system (mercury/water) in nondispersing square cross section contactors was determined. Aqueous side mass transfer coefficients were measured by polarography over a wide range of operating conditions. Correlations for the experimental mass transfer coefficients as functions of the operating parameters are presented. Several techniques for measuring mercury-side mass transfer coefficients were evaluated and a new one is recommended. (auth)

High resolution (less than or equal to .5 cm/sup -1/) autoionization spectra of atomic uranium has been observed from newly identified odd parity levels between 32,660 and 34,165 cm/sup -1/. Photoionization cross sections are presented.

Over 100 new odd parity levels useful for isotope separation of U(I) were observed between 32,660--34,165 cm/sup -1/ using multistep photoionization. A tabulation of typical cross sections and radiative lifetimes for these states is given. The extension of this technique to mapping the spectra of other heavy atoms is discussed. (auth)

During 1974, approximately 1.31 x 10/sup 13/ liters of gaseous effluents were monitored for radioactivity by the stack sampling program. A summary of the measured radioactivity was as follows: alpha (assumed source--Pu)--1.62 x 10/sup -3/ Ci and beta--0.201 Ci.

The authors propose to examine in detail, using the 15-foot bubble chamber and an improved (Phase II) EMI, the characteristics of 'dimuon' events produced by neutrinos. A light neon-hydrogen filling (30% neon atoms) provides adequate target mass, good track measurements, and high detection efficiency for photons and electrons. Thus e-{mu} and e-e dileptons, as well as dimuons, can be observed with good efficiency. They estimate a yield of 100 detected dimuons in a 200 K picture expoture. They assume 400 GeV operation, 1 x 10{sup 13} protons/pulse, and a two-horn dichromatic beam focusing 100 {+-} 10 GeV/c mesons. If dimuons are made by neutrinos {ge} 30 GeV, then the yield from this dichromatic beam is about half the yield from a wide-band beam. Knowledge of neutrino energy is important in dimuon analysis. An improved two-plane EMI, as proposed by the UH-LBL group, would provide about 1 kg/cm{sup 2} absorption thickness for particles above 10 GeV/c, thus ensuring excellent dimuon identification. Another proposed EMI improvement, the Internal Picket Fence (IPF), is designed to eliminate EMI random background (mainly neutrino-induced in the internal coil-absorber). this should greatly simplify EMI analysis and reduce the misidentification of low momentum hadrons as muons. Thus they …

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Absorption of short-pulse electromagnetic energy by a resistively loaded straight wire is examined. Energy collected by the wire, load energy, peak load currents, and peak load voltages are found for a wide range of parameters, with particular emphasis on nuclear electromagnetic pulse (EMP) phenomena. A series of time-sequenced plots is used to illustrate pulse propagation on wires when loads and wire ends are encountered. (auth)

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LASNEX calculations with a modified electron conductivity show the existence of a firepolishing stabilization effect. By modifying the thermal conductivity so that K $alpha$ T/sup n//rho/sup m/, one is able to construct a situation in which the electrons deposit their energy in a thin layer at the ablation surface and closely match the zero order solutions assumed earlier. The firepolishing effect appears to require that a significant fraction of the total pressure be due to the ablation process itself rather than the thermal pressure in the corona gas. It also requires KL approximately 1 where L is the scale height for decay of thermal perturbations generated at the ablation surface. For classical electron conductivity, because the thermal flux depends linearly on the grams/cm$sup 2$ necessary to stop the electrons, (1/rho) nabla rho approximately (1/T) nabla T near the ablation surface so that the pressure is nearly constant across the ablation surface. Hence there is no ablation pressure as such and no firepolishing effect for electron-driven implosions. (auth)

An analytic model of the fusion components is used to generate a consistent set of fusion parameters, and component costs as parameters are varied. A model of the blanket, based on neutronic and thermal hydraulics, is then used to analyze the trade-offs of energy production vs plutonium production dictated by blanket type and management. An economic discussion of fuel cost is also given. (MOW)

An experiment was conducted to assess the potential hazard associated with the use of sludge containing plutonium as a soil conditioner for food crops. Conditions were chosen that would maximize exposure to the $sup 239$Pu in the sludge through resuspension and in plant content and thus approximated the maximum potential hazards due to the inhalation and ingestion pathways. The estimated 50-year radiation doses to the pulmonary region of the lung, bone, and liver based on the results of the inhalation experiment are 6 x 10$sup -4$ rem, 1.2 x 10$sup -3$ rem, and 0.55 x 10$sup -4$ rem, respectively. Similarly, the 50- year radiation doses attributable to ingestion of the sludge-grown vegetables were 2.2 x 10$sup -5$ rem to the bone and 1.5 x 10$sup -5$ rem to the liver. Thus, the inhalation pathway is the more critical of the two. The maximum permissible annual doses to the lungs, bone, and the liver for a member of the general public are 1.5, 3.0, and 1.5 rem, respectively. Thus, the maximum credible 50-year lung, bone, and liver dose commitments associated with the use of the $sup 239$Pu-contaminated sludge as a soil conditioner are approximately 4.0 x 10$sup -2$ percent of the …

Calibrations of two calorimeters used for tritium and plutonium assays were made. Data from three new standards of about 0.5, 1, and 5 W were added to the results of a previous report and analyzed together. The accuracies of both calorimeters appear to fall within the specified 0.5 percent, although the data now available for the large calorimeter is insufficient to permit a more definite conclusion. An expression of the bias correction for each calorimeter with respect to the sample power cannot be determined. The bias of the medium thermopile-type calorimeter tends to be positive, however, and that of the large resistance-bridge design appears to be negative. (auth)

The results of some experimental measurements of laser implosions are analyzed. Calculations are made of specific target irradiations and compared with experiments. A general description is given of exploding pushers and the physical processes involved are described. (MOW)

The experimental procedure for testing the samples is given. No test results are indicated. (MOW)

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