Neutron transport analysis for nuclear reactor design

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:869045

Vujic, Jasmina L ^[1]

---

1. Lisle, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: University of Chicago (Chicago, IL)
• Patent Number(s): US 5267276
• OSTI ID: 869045
• Country of Publication: United States
• Language: English

Related Subjects

neutron
transport
analysis
nuclear
reactor
design
replacing
regular
mesh-dependent
ray
tracing
modules
collision
transfer
probability
ctp
code
module
based
combinatorial
geometry
modified
geometrical
gmc
provides
theory
dimensions
2d
analyzing
control
primary
modification
involves
generation
fixed
inner
frame
rotating
outer
contains
regions
assembly
assemblies
set
parallel
equidistant
rays
lines
attached
rotates
allows
determining
line
intersections
zone
boundaries
path
length
total
zones
track
medium
surface
parameters
calculate
cross-section
values
reactor design
path length
nuclear reactor
outer surface
reactor assembly
ray tracing
outer frame
tracing module
/376/