Comparative assessment of neutron flux sensor technologies for advanced reactors
S&T Accomplishment Report
·
OSTI ID:1844428
- Idaho National Laboratory
This report documents the comparative assessment of the rhodium-based self-powered neutron detectors (Rh-SPND), micro-pocket fission detectors (MPFD), and dosimetry wires in heated irradiations at the Neutron Radiography reactor facility at Idaho National Laboratory. The sensors performances are evaluated high-temperature environments (upwards of 850°C) during maximum reactor power to simulate use in advanced reactor applications. The performance of the Rh-SPNDs indicates the experiment cartridge heater power supply interferes with the SPND signals. This interference become increasingly significant at temperatures above 500°C with minimal interference observed for temperatures below 500°C. This work also demonstrated the fabrication process for the updated design of the MPFD, but issues related to the seal welds were identified and usable data was limited. Finally, the dosimetry measurements were within the expected range correlated with reactor power; thus, the dosimetry results were used to provide preliminary SPND calibration factors. The results from this experiment serves as a reference for developing and testing of flux sensors that are designed for high-temperature irradiations and advanced reactor deployments. This includes upcoming FY22 irradiations at the Massachusetts Institute of Technology Reactor and the Neutron Radiography (NRAD) reactor utilizing additional fission chambers from Photonis Technologies and fission chambers and SPNDs from The French Alternative Energies and Atomic Energy Commission.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- DOE Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1844428
- Report Number(s):
- INL/EXT-22-65635-Rev000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Irradiation Testing of Nuclear Flux Sensors - Presentation for 2021 ASI Annual Webinar
Pulse Mode Calibration of the Micro Pocket Fission Detector
Conceptual Design of Neutron Sensor Qualification Device
S&T Accomplishment Report
·
Tue Nov 16 23:00:00 EST 2021
·
OSTI ID:1837016
Pulse Mode Calibration of the Micro Pocket Fission Detector
S&T Accomplishment Report
·
Thu Aug 08 00:00:00 EDT 2019
·
OSTI ID:1547331
Conceptual Design of Neutron Sensor Qualification Device
S&T Accomplishment Report
·
Mon Sep 09 00:00:00 EDT 2024
·
OSTI ID:2477814