Solid radioactive wastes resulting from chemical separations processing of spent reactor fuels have been disposed by burial in trenches in the 200 Areas since 1944. Solid radioactive wastes from other Hanford facilities and from off-site AEC contractors have also been buried in the 200 Areas` Waste Burial Grounds. Since 1970, industrial wastes containing or suspected of containing transuranic radionuclides have been packaged in concrete boxes and {open_quotes}dry wastes{close_quotes} have been packaged in steel boxes or drums and buried in segregated trenches. A land area of approximately 149 acres has been used to bury 5.2 million cubic feet of contaminated solid waste through calendar year 1971. Annual reports of radioactive solid waste burials issued, beginning in 1968, have shown land area used, and volume and quantity of radioactivity grams U and/or Pu and curies buried. No corrections for radioactive decay have been reported. In July 1972, J. D. Anderson, G. L. Hanson, G. R. Kiel, B. J. McMurray, and N. P. Nisick were assigned the responsibility for a study to provide the decayed inventory of radioactivity in each solid waste burial ground in the 200 Areas. The results of this study are included as Tables 1 and 2 in this report.

From EMP technical meeting; Kirtland AFB, New Mexico, USA (25 Sep 1973). Under sponsorship of the Advanced Research Projects Agency, the Lawrence Livermore Laboratory conducted an EMP experiment in conjunction with an underground nuclear event. The purpose of the overall study of which this experiment was a part was to document the characteristics of EMP signals generated by various underground nuclear events to provide checks for theoretical models under development. A major goal was to establish how a specific event configuration affects the signals generated. For this experiment, two separate EMP source mechanisms were considered: that due to an asymmetric gamma ray distribution resulting from shielding and configuration constraints in the vicinity of the device and that due to current induced on the line-of-sight pipe. The instrumentation was not ideally located to sort out the two mechanisms because of significant differences between the planned and as-fired configuration. Nevertheless, signals characteristic of the two mechanisms seem to be apparent in the data. An impulsive (10 MHz) component of the signal is probably a result of the asymmetric gamma distribution. A ringing component (1 MHz) has been attributed to currents on the line-of- sight pipe. (auth)

Brief discussions are given for each of the following areas of research covered during this report period: solid-state laser program, design analysis, component development, diagnostics, gas lasers, chemical lasers---the iodine laser, basic studies and advanced concepts, laser propagation, laser plasmas, laser fusion, isotope separation, and program resources. (MOW)

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Beam instabilities observed in ADONE were studied. The interaction of a single particle betatron oscillation with conductive plates was analyzed. First, Fourier analysis of the field source was performed, then the usual approach to determine the plate response was used by treating the plates as transmission lines. Finally, with a process of anti-transformation the total response to the oscillation of a single particle was constructed. The wake field decays over a distance which is of the order of magnitude of the length of the plates themselves. Nevertheless, the shape of the wake field depends on the terminating independence. Several cases, for instance matched, open and shorted plates are considered. (auth)

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The 0 deg C freezing point of mercury determination based on the combined length and ultrasonic time pressure gage was completed and published. The transformation pressure obtained is P/sub T/ - 7571.2, 1.6 bars. The maximum deviation of the manganin gage from linearity is -11.6 plus or minus 0.1 bars at P/sub T/2/. A method of machining meter-long LiF single crystals was developed, and combined length and ultrasonic measurements on such a crystal are underway to determine second-pressure derivatives of elastic moduli and to determine the pressure dependence of the Gruneisen parameter. An apparatus was built to measure the pressure dependence of the yield stress of metals with small yield stress and experiments will commence shortly on potassium at liquid nitrogen temperatures. A pressure vessel was equipped with a furnace for internal heating to high temperature and experiments are underway to carry out hot isostatic compaction of very fine carbide particles under controlled conditions to obtain sintering to theoretical density with little grain growth. (auth)