Technical Specifications for the Pajarito Site Critical Experiments Facility

Technical Specifications for the Pajarito Site Critical Experiments Facility
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Total Pages:
Release: 1980
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This document is to satisfy the requirement for technical specifications spelled out in DOE Manual Chapter 0540, Safety of DOE-Owned Reactors. Technical specifications are defined in Sec. 0540-048, and the requirement for them appears in Sec. 0540-015. The following technical specifications update the document, Technical Specifications for the Pajarito Site Critical Experiments Facility (June 1975).

LACEF

LACEF
Author: Los Alamos Critical Experiments Facility
Publisher:
Total Pages: 1
Release: 1990
Genre: Criticality (Nuclear engineering)
ISBN:

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The Los Alamos Critical Experiments Facility Program

The Los Alamos Critical Experiments Facility Program
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Total Pages:
Release: 1987
Genre:
ISBN:

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Critical assemblies of precisely known materials and reproducible and easily calculated geometries have been constructed at the Los Alamos National Laboratory since the 1940s. Initially, these assemblies were built to provide information necessary for the nuclear weapons development effort. Subsequently, intensive studies of the assemblies themselves were undertaken to provide a better understanding of the physics of the fission process and other nuclear reactions in the nuclear materials from which these machine were constructed and in other materials irradiated in these assemblies. Some of these assemblies (notably Jezebel, Flattop, Big Ten, and Godiva) have been used as benchmark assemblies to compare the results of experimental measurements and computations of certain nuclear reaction parameters. These comparisons are used to validate both the input nuclear data and the computational methods. In addition to these normally fueled benchmark assemblies, other assembly machines are fueled periodically to provide specific and detailed results for parameter sensitivity studies for a large number of applications. Some of these machines and their applications are described.

Dosimetry at the Los Alamos Critical Experiments Facility

Dosimetry at the Los Alamos Critical Experiments Facility
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Total Pages: 8
Release: 1993
Genre:
ISBN:

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Although the primary reason for the existence of the Los Alamos Critical Experiments Facility is to provide basic data on the physics of systems of fissile material, the physical arrangements and ability to provide sources of radiation have led to applications for all types of radiation dosimetry. In the broad definition of radiation phenomena, the facility has provided sources to evaluate biological effects, radiation shielding and transport, and measurements of basic parameters such as the evaluation of delayed neutron parameters. Within the last 15 years, many of the radiation measurements have been directed to calibration and intercomparison of dosimetry related to nuclear criticality safety. Future plans include (1) the new applications of Godiva IV, a bare-metal pulse assembly, for dosimetry (including an evaluation of neutron and gamma-ray room return); (2) a proposal to relocate the Health Physics Research Reactor from the Oak Ridge National Laboratory to Los Alamos, which will provide the opportunity to continue the application of a primary benchmark source to radiation dosimetry; and (3) a proposal to employ SHEBA, a low-enrichment solution assembly, for accident dosimetry and evaluation.

Safety Analysis of the Los Alamos Critical Experiments Facility

Safety Analysis of the Los Alamos Critical Experiments Facility
Author: Hugh C. Paxton
Publisher:
Total Pages: 0
Release: 1976
Genre: Industrial safety
ISBN:

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The safety of Pajarito Site critical assembly operations depends upon protection built into the facility, upon knowledgeable personnel, and upon good practice as defined by operating procedures and experimental plans. Distance, supplemented by shielding in some cases, would protect personnel against an extreme accident generating 1019 fissions. During the facility's 28-year history, the direct cost of criticality accidents has translated to a risk of less than $200 per year.--P. 1.

Publications of Los Alamos Research

Publications of Los Alamos Research
Author: Los Alamos National Laboratory
Publisher:
Total Pages: 348
Release: 1983
Genre: Research
ISBN:

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