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Title: Overview of Activities at SNL Technical Area V with a focus on calorimeter studies at the Annular Core Research Reactor.

Abstract

Abstract not provided.

Authors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1241684
Report Number(s):
SAND2014-18133PE
537752
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Tech Talk at North Carolina State University held October 1, 2014 in Raleigh, NC.
Country of Publication:
United States
Language:
English

Citation Formats

Hehr, Brian Douglas. Overview of Activities at SNL Technical Area V with a focus on calorimeter studies at the Annular Core Research Reactor.. United States: N. p., 2014. Web.
Hehr, Brian Douglas. Overview of Activities at SNL Technical Area V with a focus on calorimeter studies at the Annular Core Research Reactor.. United States.
Hehr, Brian Douglas. Mon . "Overview of Activities at SNL Technical Area V with a focus on calorimeter studies at the Annular Core Research Reactor.". United States. doi:. https://www.osti.gov/servlets/purl/1241684.
@article{osti_1241684,
title = {Overview of Activities at SNL Technical Area V with a focus on calorimeter studies at the Annular Core Research Reactor.},
author = {Hehr, Brian Douglas},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}

Conference:
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  • Abstract not provided.
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  • The Annular Core Research Reactor (ACRR) at Sandia National Laboratories is a water-moderated pool-type reactor designed for testing many types of objects in the pulse and steady-state mode of operations. Personnel at Sandia began working to improve the repeatability of pulse operations for experimenters in the facility. The ACRR has a unique UO{sub 2}-BeO fuel that makes the task of producing repeatable pulses difficult with the current operating procedure. The ACRR produces a significant quantity of photoneutrons through the {sup 9}Be({gamma}, n){sup 8}Be reaction in the fuel elements. The photoneutrons are the result of the gammas produced during fission andmore » in fission product decay, so their production is very much dependent on the reactor power history and changes throughout the day/week of experiments in the facility. Because the photoneutrons interfere with the delayed-critical measurements required for accurate pulse reactivity prediction, a new operating procedure was created. The photoneutron effects at delayed critical are minimized when using the modified procedure. In addition, the pulse element removal time is standardized for all pulse operations with the modified procedure, and this produces less variation in reactivity removal times. (authors)« less
  • Sandia National Laboratories Annular Core Research Reactor (ACRR) is undertaking a new mission for the Department of Energy: production of the radioisotope {sup 99}Mo used in nuclear medicine applications. Isotope production is significantly different from previous programs conducted at the ACRR that typically required high intensity, short duration pulses. The current UO{sub 2}-BeO fuel will power the initial startup phase of the production program, and can perform exceptionally well for this mission. However, this type of fuel is no longer available, commercially or otherwise. This paper presents the results of some preliminary studies of commercially available fuels.