Design of auxiliary shield for remote controlled metallographic microscope
- 1. Japan Atomic Energy Agency, Nuclear Science Research Institute, Tokai, Ibaraki (Japan)
Description
The remote controlled optical microscope installed in the lead cell at the Reactor Fuel Examination Facility (RFEF) in Japan Atomic Energy Agency (JAEA) has been upgraded to a higher performance unit to study the effect of the microstructural evolution in clad material on the high burn-up fuel behavior under the accident condition. The optical pass of the new microscope requires a new through hole in the shielding lead wall of the cell. To meet safety regulations, auxiliary lead shieldings were designed to cover the lost shielding function of the cell wall. Particle and Heavy Ion Transport Code System (PHITS) was used to calculate and determine the shape and setting positions of the shielding unit. Seismic assessments of the unit were also performed. (author)
Availability note (English)
Available from JAEA; DOI: https://doi.org/10.11484/jaea-technology-2014-015
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
System files
(71.9 kB)
| Name | Size | Download all |
|---|
Additional details
Identifiers
Publishing Information
- Imprint Pagination
- 52 p.
- Report number
- JAEA-Technology--2014-015
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 46021549
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S61: RADIATION PROTECTION AND DOSIMETRY;
- Descriptors DEI
- ALLOY NUCLEAR FUELS; DESIGN; JAEA; MECHANICAL STRUCTURES; MICROSCOPES; P CODES; REMOTE CONTROL; RISK ASSESSMENT; SAFETY ANALYSIS; SHIELDING; SHIELDING MATERIALS; TEST FACILITIES
- Descriptors DEC
- COMPUTER CODES; CONTROL; ENERGY SOURCES; FUELS; JAPANESE ORGANIZATIONS; MATERIALS; NATIONAL ORGANIZATIONS; NUCLEAR FUELS; REACTOR MATERIALS; SOLID FUELS
Optional Information
- Notes
- 11 refs., 13 figs., 2 tabs.