Neutron shielding of the GDT (Novosibirsk) neutron generator project -- A feasibility study

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:464977

Robouch, B V; Ingrosso, L ^[1]; Brzosko, J S ^[2]; Volosov, V I; Ivanov, A A; Tsidulko, Yu A ^[3]

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1. Associazione EURATOM-ENEA sulla Fusione, Frascati (Italy). Centro Ricerche Frascati
2. Neutronics/Photonics R and D, Jersey City, NJ (United States)
3. Academy of Science of Russia, Novosibirsk (Russian Federation). Budker Inst. of Nuclear Physics

The paper presents results of extensive neutronic studies of the neutron source test facility based on the Novosibirsk Gas Dynamic Trap (GDT). The facility is to provide 10{sup 18} SDT-neutrons/s (over a continuous 10-year period) for material-test studies. The paper examines the protective-shield capacity to ensure survival of GDT vital parts and suggests design modifications when survival is in jeopardy. The numerical studies used the 3D-AMC-VINIA Monte Carlo code with a precise computer representation of the sensitive parts of the facility. Intensity maps were plotted for neutron fluences, displacements, heat deposition, etc. Shielding feasibility has been ascertained, and the lifetime of consumable components ensured beyond the recommended values. A modification is suggested to extend the irradiation space at HARD neutron energy spectra to increase the volume to 1 m{sup 3} with damage gradients <5%/cm. The design achieves neutron fluences close to 10{sup 14} n/cm{sup 2}s (3.10{sup 22} n/cm{sup 2} end-of-life) in a >100 {ell} test space.

• OSTI ID: 464977
• Report Number(s): CONF-950905--; ISBN 0-7803-2969-4
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
FEASIBILITY STUDIES
MATERIALS TESTING
NEUTRON FLUENCE
NEUTRON SOURCES
SHIELDING
TEST FACILITIES
THEORETICAL DATA
THERMONUCLEAR REACTOR MATERIALS