Rhodium in-core detector sensitivity depletion, cycles 2 to 4. Interim report

Technical Report · Sun Feb 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6886712· OSTI ID:6886712

Warren, H. D.; Sulcoski, M. F.

Sensitivity depletion of two rhodium (Rh) self-powered neutron detectors (SPNDs) has been measured since July 1976 at the Oconee 2 pressurized water reactor (PWR). The detectors were positioned inside the reactor core throughout the measurement period. Depletion has been determined as a function of electric charge expended (released) by each detector. The goal of the project is the empirical definition of the depletion characteristics over the operating life-time of the Rh detector. Results to data show that the sensitivity depletion rate of the Rh detector in the PWR is highly linear with charge released from the detector. In contrast to preliminary observations reported earlier, there appears to be no effect on the depletion rate that is traceable to the beginning-of-cycle burnup of the fuel assembly in which the Rh detectors are located.

• Research Organization: Babcock and Wilcox Co., Lynchburg, VA (USA). Research and Development Div.
• OSTI ID: 6886712
• Report Number(s): EPRI-NP-1715
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IN CORE INSTRUMENTS
MEASURING INSTRUMENTS
NEUTRON DETECTORS
PERFORMANCE
POWER REACTORS
RADIATION DETECTORS
REACTOR INSTRUMENTATION
REACTORS
SELF-POWERED DETECTORS
SELF-POWERED NEUTRON DETECTORS
SENSITIVITY