skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Uranium Accumulation Discoveries at Y-12 (Presentation)

Abstract

In June 2017, reduction operations at the Y-12 National Security Complex (Y-12) experienced a uranium accumulation event that compromised the nuclear criticality safety (NCS) of reduction operations. This event led to the execution of an extensive Extent-of-Condition (EOC) review aimed at identifying the location of other significant uranium masses in unintended locations. This paper describes the reduction process, the equipment in which unexpected accumulation was discovered, and the timeline of events leading to the discovery. It highlights the multi-disciplinary effort taken by production to recover from the event and resume operations. Lastly, it includes a description of the inconsistencies between operational conditions and Criticality Safety Evaluation (CSE) assumptions and how the EOC led to the discovery of four more accumulations within Y-12 processes.

Authors:
 [1];  [1]
  1. Y-12 National Security Complex, Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1464639
Report Number(s):
IROS5329
DOE Contract Number:  
DE-NA0001942
Resource Type:
Conference
Resource Relation:
Conference: Energy Facility Contractors Group (EFCOG) Nuclear Facility Safety Conference, Pacific Northwest National Laboratory, Richland, WA, August 11-17, 2018
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats

McCarthy, Amber, and Kupferer, Dave. Uranium Accumulation Discoveries at Y-12 (Presentation). United States: N. p., 2018. Web.
McCarthy, Amber, & Kupferer, Dave. Uranium Accumulation Discoveries at Y-12 (Presentation). United States.
McCarthy, Amber, and Kupferer, Dave. Mon . "Uranium Accumulation Discoveries at Y-12 (Presentation)". United States. https://www.osti.gov/servlets/purl/1464639.
@article{osti_1464639,
title = {Uranium Accumulation Discoveries at Y-12 (Presentation)},
author = {McCarthy, Amber and Kupferer, Dave},
abstractNote = {In June 2017, reduction operations at the Y-12 National Security Complex (Y-12) experienced a uranium accumulation event that compromised the nuclear criticality safety (NCS) of reduction operations. This event led to the execution of an extensive Extent-of-Condition (EOC) review aimed at identifying the location of other significant uranium masses in unintended locations. This paper describes the reduction process, the equipment in which unexpected accumulation was discovered, and the timeline of events leading to the discovery. It highlights the multi-disciplinary effort taken by production to recover from the event and resume operations. Lastly, it includes a description of the inconsistencies between operational conditions and Criticality Safety Evaluation (CSE) assumptions and how the EOC led to the discovery of four more accumulations within Y-12 processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {8}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: