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in subjects: "Materials 420203* -- Engineering-- Handling Equipment & Procedures"  
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Nuclear safety guide TID-7016 Revision 2

Description: The present revision of TID-7016 Nuclear Safety Guide is discussed. This Guide differs significantly from its predecessor in that the latter was intentionally conservative in its recommendations. Firmly based on experimental evidence of criticality, the original Guide and the first revision were considered to be of most value to organizations whose activities with fissionable materials were not extensive and, secondarily, that it would serve as a point of departure for members of established nu… more
Date: January 1, 1980
Creator: Thomas, J T
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Criticality safety and facility design considerations

Description: Operations with fissile material introduce the risk of a criticality accident that may be lethal to nearby personnel. In addition, concerns over criticality safety can result in substantial delays and shutdown of facility operations. For these reasons, it is clear that the prevention of a nuclear criticality accident should play a major role in the design of a nuclear facility. The emphasis of this report will be placed on engineering design considerations in the prevention of criticality. The … more
Date: June 1, 1991
Creator: Waltz, W.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Applying commercial robotic technology to radioactive material processing

Description: The development of robotic systems for glove box process automation is motivated by the need to reduce operator radiation dosage, minimize the generation of process waste, and to improve the security of nuclear materials. Commercial robotic systems are available with the required capabilities but are not compatible with a glove box environment. Alpha radiation, concentrated dust, a dry atmosphere and restricted work space result in the need for unique adaptations to commercial robotics. Impleme… more
Date: November 1, 1990
Creator: Grasz, E.L. (Lawrence Livermore National Lab., CA (USA)) & Sievers, R.H. Jr. (Science Applications International Corp., San Diego, CA (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Bag-out material handling system

Description: A bagging device for transferring material from a first chamber through an opening in a wall to a second chamber includes an outer housing communicating with the opening and having proximal and distal ends relative to the wall. An inner housing having proximal and distal ends corresponding to those of the outer housing is mounted in a concentrically spaced, sealed manner with respect to the distal end of the outer housing. The inner and outer housings and mounting means therebetween define an a… more
Date: February 26, 1982
Creator: Brak, S.B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Cutting fluid for machining fissionable materials

Description: The present invention is directed to a cutting fluid for machining fissionable material. The cutting fluid is formed of glycol, water and a boron compound in an adequate concentration for effective neutron attenuation so as to inhibit criticality incidents during machining.
Date: January 28, 1982
Creator: Duerksen, W.K.; Googin, J.M. & Napier, B. Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Effect of reflector location at array criticality

Description: The motion of a thick reflector away from a critical array of subcritical units of fissile material results in an array reactivity loss. The fraction of the total reactivity worth of a reflector is related to the distance a reflector is located from the surfaces of an array. The magnitude of reactivity associated with the reflector location may be used in the assessment of nuclear criticality safety of operations with fissile materials to establish margins of subcriticality. An equivalence is e… more
Date: November 1, 1980
Creator: Thomas, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Training facility for criticality safety

Description: The Lawrence Livermore Laboratory has established a training facility for hands-on instruction in various aspects of fissile material control. Eight hemispherical shells of 93% enriched uranium (approximately 23 kg) are used in a configuration convenient for demonstrating the effects of mass, reflectivity, separation, moderation and poison on the state of criticality. Various thicknesses of clear acrylic plastic are used as moderators in the center of the assembly and as reflectors surrounding … more
Date: August 30, 1979
Creator: Crites, T. R.; Powell, T. J. & Williams, G. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Automatic bagout system

Description: Nuclear material entrained wastes are generated at the Plutonium Facility at Los Alamos National Laboratory. These wastes are removed from the glove box lines using the bagout method. This is a manual operation performed by technicians. An automated system is being developed to relieve the technicians from this task. The system will reduce the amount of accumulated radiation exposure to the worker. The primary components of the system consist of a six degree of freedom robot, a bag sealing devi… more
Date: November 1, 1986
Creator: Whitaker, R. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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