This report follows the studies on the interactions of antiproton with ordinary matter.

This report follows experiments concerned with a particular proposal or set of related proposals of means for the production of plasma with density above 10-11 particles per cm-3 with a temperature of the order of a few electron volts.

Abstract: "A dc magnetic mirror machine has been built and tested by the ARC Research Group. Radiofrequency enhancement has been included in the design through the use of rf plates in the vacuum chamber of the machine. For the proton beams of the order of 1[mu]a, the mirror action has been observed as a function of both the rf voltage and the magnitude of the mirror field relative to the main magnetic field. Current measurements were performed with the aid of a Faraday cup with suitable bias grids."

"This is a selected bibliography of books, journal articles and reports published on creep and relaxation in metals and ceramics from 1950 to March 1959. Particular attention has been paid to studies on or applicable to the consideration of creep and relaxation in beryllium oxide. Emphasis has alro been placed on studies of phenomenological materials behavior and high temperature studies."

The following report records the use of the double-precision THEMIS code to integrate the motion of Mars and Venus in order to obtain a complete set of rectangular equatorial coordinates over the interval 1600-2000 A.D.

American Mining Congress 9/24/58. Summary. Results of a recent underground test by the Atomic Energy Commission indicate possible applications of nuclear energy in mining and allied industries. The safety, feasibility and economy of nuclear detonations have been demonstrated and further considerations reveal a number of interesting situations which might lend themselves to the use of this new type of explosive. Possible applications include stripping, crushing, quarrying, and the exploitation of petroleum products, water resources, and low-grade ore deposits. The heat reservoir created by the explosion might be used to produce steam (and power) to promote the recovery of oil or tar. The mining industry can supply know-how and test sites for future tests.

The work reported here is a continuation of that reported in UCRL-1962. Approximate breakdown voltages and spark damage estimates have been made for the metals Ag, Ti, Aluminum Alloy 52-SO, Stainless Steel 316 and various combinations of Inconel and Cu.