We performed a study to determine the dynamic behavior of the Nova Target Chamber. We conducted a free vibration analysis to determine the natural frequencies of vibration and the corresponding modeshapes of the target chamber. Utilizing the free vibration results, we performed forced vibration analysis to predict the displacements of the chamber due to ambient vibration. The input support motion for the forced vibration analysis was defined by a white noise acceleration spectrum which was based on previous measurements of ground noise near the Nova site. A special purpose computer program was prepared to process the results of the forced vibration analysis. The program yields distances by which the lines of sight of the various laser beams miss the target as a result of ambient vibrations. We also performed additional estimates of miss distance to provide bounds on the results. A description of the finite element model of the chamber, the input spectrum, and the results of the analyses are included.

As a part of an ongoing, EPRI-sponsored project whose aim is the quantification and reduction of fluence uncertainties in the pressure vessel of operating PWR's, this work describes the calculation of sensitivities necessary for the propagation of PWR core source distribution uncertainties to the flux spectrum at locations of interest (e.g., the cavity or T/4 pressure vessel locations) in the AN0l reactor. In this case standard perturbation theory requires an adjoint run to be made for each group flux since each group flux is a response. An alternate approach has been developed by Cacuci which should be more efficient than the standard approach although it has not yet been applied to a flux spectrum response.

It is observed with the ETA electron beam propagating in air that the net current exceeds the beam current for pressures between 20 and 500 Torr. Microwave measurements indicate that this current enhancement is distinctly different than that associated with the two-stream instability at low pressure. Detailed measurements of its dependence on pressure, current, beam size, and propagation distance are given. A theory is proposed that attributes the additional forward current to energetic secondary electrons pushed forward by the beam self-magnetic field. Detailed comparison of measurements with the results of a non-local Boltzmann code are made.

It is shown that the use of octopole stabilization in a tandem mirror allows a large reduction in end-cell length. A novel feature of the method proposed in this report is the placement of the minimum IBI region coonsiderably off axis, thus rendering the core plasma more axisymmetric. The region from the core to the field minimum is bridged by a mirror-confined hot-electron mantle. Low ..beta.., ideal magnetohydrodynamic stability, as evaluated with the interchange criterion, yields an upper limit to the required mantle peak ..beta.. of 78% for a center-cell peak ..beta.. of 75% and barrier peak ..beta.. of 30%. Estimates for the worst type of classical radial diffusion - with stochastic displacements per bounce - show that such radial losses are negligible for this configuration. First estimates of power balance indicate Q approx. 10 for a reactor producing 500 MW of fusion power and Q approx. 25 for one producing 1000 MW, using conservative assumptions regarding mantle ..beta.. requirements and synchrotron radiation losses.

The Seismic Safety Margins Research Program (SSMRP) was a program conducted to develop a complete, fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake induced radioactive release from a commercial nuclear power plant. The analysis procedure was based on a state-of-the-art evaluation of then current seismic analysis and design processes, and it explicitly attempted to account for some of the uncertainties inherent in such processes. This report identifies some of the files used in the analysis.

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This report describes Coarse Aperture Study for the Window Frame Dipoles in RHIC.

This note compilation talks about Aperture Requirements and Proton Performance in RHIC

The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. Table 5 here shows competitive leasing of federal lands for geothermal uses, by state, for 1974-1976, and annually for 1977 through 1983. By the end of FY 1983, 972,492 acres were under competitive lease. Bonus bids collected from these sales totaled more than $77 million. (DJE 2005)

Compilation of monthly reports from departments in the city of San Antonio, Texas providing statistics, project updates, and other information about services and activities.

Much attention has recently been focused on the chemical ethylene dibromide (EDB). This chemical has been widely used in leaded gasoline, and has also been used to treat grains, citrus and other crops. It has been found in foods and in groundwater. This paper examines the possible health effects of exposure to EDB, as well as its regulation. The possible health effects and regulation of various chemical and physical alternatives to EDB are also examined. This paper concludes with some policy considerations pertinent to EDB.