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Title: Heating Distributions in the Target of the Spallation Neutron Source

Heating Distributions in the Target of the Spallation Neutron Source Detailed calculation of the heat distributions in the structural parts of the target (Hg) and the target itself were made with realistic proton profiles. Preliminary current profiles of the protons coming from the accumulator ring, calculated and parameterized by the Brookhaven National Laboratory (BNL), were used as input to the Monte Carlo code LAHET. Due to limitations of the present version of the LAHET code, the real source was approximated with a nest of elliptical rings (all with the same eccentricity). The BNL's source was then fitted according to this elliptical description considering two constraints: (1) to preserve the areas of the contours of equal intensity of the real proton current density, and (2) to keep the ellipses with the same shape. In this way the best elliptical shape to describe the source was found. Because of the gaussian nature of the real current distribution, the elliptical fit is also gaussian in the elliptical coordinate.
Authors: ;
Publication Date:
OSTI Identifier:OSTI ID: 9118
Report Number(s):ORNL/CP-102789
TRN: US0102750
DOE Contract Number:AC05-96OR22464
Resource Type:Conference
Resource Relation:Conference: International Topical meeting on Applications of Accelerator Technology, AccApp'99, Gatlinburg, TN (US), 11/14/1999--11/18/1999; Other Information: PBD: 18 Nov 1999
Research Org:Oak Ridge National Lab., TN (US)
Sponsoring Org:USDOE Office of Science (US)
Country of Publication:United States
Language:English
Subject: 43 PARTICLE ACCELERATORS; CURRENT DENSITY; HEATING; NEUTRON SOURCES; PROTON BEAMS; SPALLATION; TARGETS; TEMPERATURE DISTRIBUTION; MERCURY; MONTE CARLO METHOD; L CODES SPALLATION NEUTRON SOURCE