Neutron transport analysis for nuclear reactor design

Patent · Tue Nov 30 04:00:00 EST 1993

OSTI ID:5312171

Vujic, J L

Replacing regular mesh-dependent ray tracing modules in a collision/transfer probability (CTP) code with a ray tracing module based upon combinatorial geometry of a modified geometrical module (GMC) provides a general geometry transfer theory code in two dimensions (2D) for analyzing nuclear reactor design and control. The primary modification of the GMC module involves generation of a fixed inner frame and a rotating outer frame, where the inner frame contains all reactor regions of interest, e.g., part of a reactor assembly, an assembly, or several assemblies, and the outer frame, with a set of parallel equidistant rays (lines) attached to it, rotates around the inner frame. The modified GMC module allows for determining for each parallel ray (line), the intersections with zone boundaries, the path length between the intersections, the total number of zones on a track, the zone and medium numbers, and the intersections with the outer surface, which parameters may be used in the CTP code to calculate collision/transfer probability and cross-section values. 28 figures.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Univ. of Chicago, Chicago, IL (United States)
• Patent Number(s): US 5267276; A
• Application Number: PPN: US 7-792145
• OSTI ID: 5312171
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
C CODES
COMPUTER CODES
FUEL ASSEMBLIES
KINETICS
MODIFICATIONS
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
RADIATION TRANSPORT
REACTOR COMPONENTS
REACTOR CORES
REACTOR KINETICS