An actinide aqueous waste treatment process using activated magnetite has been developed at Rocky Flats. The use and effectiveness of various magnetites in lowering actinide concentrations in aqueous solution are described. Experiments indicate that magnetite particle size and pretreatment (activation of the magnetite surface with hydroxyl ions greatly influence the effective use of magnetite as an actinide adsorbent. With respect to actinide removal, Ba(OH)/sub 2/-activated magnetite was more effective over a broader pH range than was NaOH-activated magnetite. About 50% less Ba(OH)/sub 2/-activated magnetite was required to lower plutonium concentration from 10/sup -4/ to 10/sup -8/ g/l. 7 refs., 8 tabs.

This documents describes the VME/FASTBUS Interface routines (VFI). These routines where designed to enable programs written in PILS running on a MVME 101 under Valet-plus to control a VME/FASTBUS Interface. The routines fall into two general types, control and transaction. The control routines, such as vmec-reset, work directly with the interface's registers. These routines set up and monitor operations between VME and FASTBUS. The transaction routines, such as vfi-write-dat, use the control routines to carry out complete functions on FASTBUS. Most FASTBUS operations are implemented except for the compound routines and some low level routines. This document is divided into seven sections, the first is the introduction. The remaining sections detail the interface's registers, the structure of operation codes, polling and interrupts, status reporting, the control routines, and the transaction routines.

The Senior Committee on Environmental, Safety, and Economic Aspects of Magnetic Fusion Energy (ESECOM) has assessed magnetic fusion energy's prospects for providing energy with economic, environmental, and safety characteristics that would be attractive compared with other energy sources (mainly fission) available in the year 2015 and beyond. ESECOM gives particular attention to the interaction of environmental, safety, and economic characteristics of a variety of magnetic fusion reactors, and compares them with a variety of fission cases. Eight fusion cases, two fusion-fission hybrid cases, and four fission cases are examined, using consistent economic and safety models. These models permit exploration of the environmental, safety, and economic potential of fusion concepts using a wide range of possible materials choices, power densities, power conversion schemes, and fuel cycles. The ESECOM analysis indicates that magnetic fusion energy systems have the potential to achieve costs-of-electricity comparable to those of present and future fission systems, coupled with significant safety and environmental advantages. 75 refs., 2 figs., 24 tabs.

Delays of up to 2 years were experienced in liquidating $9.5 million in collateral on three defaulted loans. Although the Department had paid lenders $32.5 million on these defaulted loans, it had not notified the US Attorney General. Also, it had not prepared final liquidation plans as provided by regulations. As a result of these delays, the collective value of the collateral has decreased by about $2.7 million, and the Department has incurred over $690,000 in lease maintenance and administrative costs. Furthermore, continued delays will result in an estimated $116,000 per year in additional costs and could reduce the chance of collecting approximately $7 million in potential legal damages. The delays in taking action to recover collateral, according to program officials, were due to unresolved legal issues or attempts to restructure a project. Details of findings on the three defaulted loans are given. They were NPN Partnership and Niland Geothermal, Inc. (Niland), CU-1 Venture (CU-1), and Westmorland Geothermal Associates (Westmorland).

This is an informal guide to understanding radiation, the ways in which the SSC can produce radiation, and the techniques used to shield the public from that radiation.

Nuclear Engineering Division requested estimates of the maximum PKL reactor tank pressures associated with postulated reactor accidents. Tank bottom pressures calculated in establishing confinement protection limits (CPL) in Mark 16B-31 and Mark 22 reactor charges are given in this document.

This report provides the necessary sizing for the LN{sub 2} cooling coils in the D-Zero cryostats. Natural convection from finned tubes will be the means of cooling the cryostats and their contents until such time as liquid can be made by condensing. Each cryostat will contain three separate cooling runs. Two runs will be cooldown and the other steady state. These runs will be placed in each cryostat as shown in figure 3, 4a and 4b. By assuming a 100 K tube wall temperature, tube diameter (3/4-inch) and wall thickness (0.065-inch) and the total length of tube (2 x 2940-inch + 1463-inch), the heat transfer can be calculated. Table 1 was calculated from relations in 'Handbook of Heat transfer Fundamentals' for free convection, pages 6-34 through 6-40.

The Central Calorimeter and its support cradle are to be supported by either hydraulic or mechanical jacks. If hydraulics are used, each support will use two hydraulically coupled jacks with two out of the four supports hydraulically coupled giving the effect of a three point support system. If mechanical jacks are used, all four points are used for support. Figure 2 shows two examples of jack placement on a 3.5 inch support plate. These two support scenarios lead to five jack failure cases to be studied. This report deals with the way in which a 0.25 inch drop (failed jack) at one support affects the stresses in the cradle. The stresses from each failure case were analyzed in two ways. First, stress factors, defined as quotients of stress intensities of the failed case with respect to the static case, were generated and then, hand calculations similar to those in Engineering Note 3740.215-EN-14 were done using the reaction forces from the failed case.

This report provides statistics on financial aid debt, type of financial aid, salary and percent of financial aid for the Science/Engineering students.

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending May 2 to the week ending June 6, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.

Interaction of heavy particles (alpha-recoil nuclei, fission fragments, implanted ions) with ceramics is complex because they have a wide range of structure types, complex compositions and chemical bonding is variable. Radiation damage can produce diverse results, but most commonly, crystalline periodic materials become either polycrystalline or aperiodic (metamict state). We studied the transition from crystalline to aperiodic state in natural materials that have been damaged by alpha recoil nuclei in the U and Th decay series and in synthetic, analogous structure types which have been amorphized by ion implantation. Transition from crystalline to aperiodic was followed by analysis of XRD, high resolution TEM, and EXAFS/XANE spectroscopy. Use of these techniques with increasing dose provided data on an increasing finer scale as the damage process progressed.