[en] Portable gloveboxes and containments have been used in the Navy Nuclear Power programs for many years. Their primary application has been to allow maintenance access to radioactive piping systems while limiting the spread of contamination to the immediate environment. The applications have spread to other areas of the nuclear industry and to other industries with similar contamination control problems. The general application is to keep the contaminants in, but other uses keep the contamination out. The devices can best be classified by material types and construction. They range from the relatively inexpensive polyethylene glove bags for asbestos removal to the semi-permanent aluminum and lexan hard-sided containment structures. There are free-standing open-quotes tentclose quotes structures, support ring devices and tube or bag designs. Only the cost seems to limit the size of these items. The key to the effective use of these devices lies in the planning and control of their application. Proper training of maintenance personnel will greatly facilitate their use, since the main objection seems to be in the exposure received during the rigging of these containments. When all of these considerations are accounted for, a program of contamination control can be quite successful. A brief description of the set-up and use of a specific application is described

[en] The fast-neutron hodoscopes at TREAT and proposed for STF can be adapted to perform high-resolution radiography, in addition to their role of time-resolved test fuel imaging. Time resolution may be traded for increased spatial resolution by remote motorized scanning of the collimator, simulataneous collection of data from the detector array over extended time intervals, and deconvolution of the data from the collimator response function. Calculations and analysis of initial scanning experiments at TREAT indicate that an acceptable level of fuel density resolution can be achieved for TREAT and STF in-situ radiography

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No abstract available

[en] Short communication

[en] Pulmonary embolism is a frequent and potentially life-threatening complication of venous thromboembolism. Despite numerous modern diagnostic methods, the diagnosis of pulmonary embolism remains problematic, especially in view of the nonspecific clinical presentation. In this educational review, current diagnostic methods and their role in the diagnostic workup of pulmonary embolism will be discussed. In addition, practical guidelines are given for the diagnostic cascade contingent on the clinical probability for pulmonary embolism. (orig.)

No abstract available

No abstract available

[en] The fast-neutron hodoscope at the Transient Reactor Test Facility detects fuel motion in thick opaque capsules during in-core destructive transient tests. Counts from several hundred detectors, each with rates up to a megahertz, are collected at intervals as short as a millisecond for up to tens of seconds. The large amount of data must be decoded, normalized, represented in suitable forms, and analyzed. A computer-controlled magnet disk data acquisition system has been installed which provides shorter data collection intervals, simplifies decoding, and permits immediate data analysis. Data normalizations and representations have been developed which significantly increase the dynamic range, yield sensitive quantitative indications of fuel mass motion, and render the data intuitively comprehensible. The improved hodoscope system performance level is demonstrated by results from a recent transient test, Pinex-2, which show the quantitative evolution of fuel mass motion from 1515 MW peak reactor power through a 1 MW post-scram radiation level

No abstract available