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Detection of a leaking boron-carbide control rod in a TRIGA Mark I reactor

Abstract

During a routine quarterly inspection of the boron-carbide control rods of the Omaha Veterans Administration Hospital 18 kW Triga Mark I reactor, a pin hole leak was detected approximately 3 mm from the chamfered edge. The leak was found by observing bubbles when the rod was withdrawn from the reactor tank for visual observation, and could not be seen with the naked eye. This suggests that pin hole leaks could occur and not be visually detected in control rods and fuel elements examined underwater. A review of the rod calibrations showed that the leak had not caused a loss in rod worth. Slides will be presented showing the bubbles observed during the inspection, together with an unmagnified and magnified view of the pin hole. (author)
Authors:
Blotcky, A J; Arsenault, L J [1] 
  1. General Medical Research, Veterans Administration Hospital, Omaha (United States)
Publication Date:
Jul 01, 1974
Product Type:
Conference
Report Number:
INIS-US-09N0328; TOC-5
Resource Relation:
Conference: 3. TRIGA owners' conference, Albuquerque, NM (United States), 25-27 Feb 1974; Other Information: Country of input: International Atomic Energy Agency (IAEA); 3 figs; Related Information: In: 3. TRIGA owners' conference. Papers and abstracts, 432 pages.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BORON CARBIDES; BUBBLES; CALIBRATION; CONTROL ELEMENTS; FAILED ELEMENT DETECTION; FUEL ELEMENTS; HOSPITALS; INSPECTION; LEAKS; LOSSES; TANKS; TRIGA TYPE REACTORS; UNDERWATER
OSTI ID:
21217726
Research Organizations:
General Atomic Co., San Diego, CA (United States)
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
TRN: US09N0333086510
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 1.54-1.57
Announcement Date:
Oct 17, 2009

Citation Formats

Blotcky, A J, and Arsenault, L J. Detection of a leaking boron-carbide control rod in a TRIGA Mark I reactor. United States: N. p., 1974. Web.
Blotcky, A J, & Arsenault, L J. Detection of a leaking boron-carbide control rod in a TRIGA Mark I reactor. United States.
Blotcky, A J, and Arsenault, L J. 1974. "Detection of a leaking boron-carbide control rod in a TRIGA Mark I reactor." United States.
@misc{etde_21217726,
title = {Detection of a leaking boron-carbide control rod in a TRIGA Mark I reactor}
author = {Blotcky, A J, and Arsenault, L J}
abstractNote = {During a routine quarterly inspection of the boron-carbide control rods of the Omaha Veterans Administration Hospital 18 kW Triga Mark I reactor, a pin hole leak was detected approximately 3 mm from the chamfered edge. The leak was found by observing bubbles when the rod was withdrawn from the reactor tank for visual observation, and could not be seen with the naked eye. This suggests that pin hole leaks could occur and not be visually detected in control rods and fuel elements examined underwater. A review of the rod calibrations showed that the leak had not caused a loss in rod worth. Slides will be presented showing the bubbles observed during the inspection, together with an unmagnified and magnified view of the pin hole. (author)}
place = {United States}
year = {1974}
month = {Jul}
}