Measurements for the JASPER Program Flux Monitor Experiment

Technical Report · Mon Feb 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/432824· OSTI ID:432824

Muckenthaler, F J; Spencer, R R; Hunter, H T; Hull, J L ^[1]; Shono, A ^[2]

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1. Oak Ridge National Lab., TN (United States)
2. Power Reactor and Nuclear Fuel Development Corp., Oarai, Ibaraki (Japan). Oarai Engineering Center

The Flux Monitor Experiment was conducted at the Oak Ridge National Laboratory (ORNL) Tower Shielding Facility (TSF) during the months of May and June 1992, as part of the continuing series of eight experiments planned for the Japanese-American Shielding Program for Experimental Research (JASPER) program that was started in 1986. This series of experiments was designed to examine shielding concerns and radiation transport effects pertaining to in-vessel flux monitoring systems (FMS) in current reactor shield designs proposed for both the Advanced Liquid Metal Reactor (ALMR) design and the Japanese loop-type design. The program is a cooperative effort between the United States Department of Energy (US DOE) and the Japanese Power Reactor and Nuclear Fuel Development Corporation (PNC). The Tower Shielding Reactor H (TSR-II) neutron source was altered by the spectrum modifier (SM) used previously in the Axial Shield Experiment, and part of the Japanese Removable Radial Shield (RRS) before reaching the axial shield. In the axial shield were placed six homogeneous boron carbide (B{sub 4}C) hexagons around a center hexagon of aluminum used to represent sodium. Shield designs to be studied were placed beyond the axial shield, each design forming a void directly behind the axial shield. Measurements were made in the void and behind each slab as successive slabs were added.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 432824
• Report Number(s): ORNL/TM--12171; ON: DE97003409
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
ALUMINIUM
BORON CARBIDES
COORDINATED RESEARCH PROGRAMS
DESIGN
EXPERIMENTAL DATA
JAPAN
LMFBR TYPE REACTORS
MONITORING
NEUTRON FLUX
RADIATION TRANSPORT
REACTOR MONITORING SYSTEMS
SHIELDING
SHIELDING MATERIALS
TSR-2 REACTOR
USA