EPJ Web of Conferences
Volume 106, 2016ISRD 15 – International Symposium on Reactor Dosimetry
|Number of page(s)||8|
|Section||Transport Calculations (Neutron and Gamma-Ray) and Modeling|
|Published online||03 February 2016|
ACS Algorithm in Discrete Ordinates for Pressure Vessel Dosimetry
Nuclear Engineering Program, Mechanical Engineering Department, Virginia Tech, 900N Glebe Rd, Arlington, VA, USA
a Corresponding author: firstname.lastname@example.org
Published online: 3 February 2016
The Adaptive Collision Source (ACS) method can solve the Linear Boltzmann Equation (LBE) more efficiently by adaptation of the angular quadrature order. This is similar to, and essentially an extension of, the first collision source method. Previously, the ACS methodology has been implemented into the TITAN discrete ordinates code, and has shown speedups of 2–4 on a simple test problem, with very little loss of accuracy (within a provided adaptive tolerance). This work examines the use of the ACS method for a more realistic problem: pressure vessel dosimetry with the VENUS-2 MOX-fuelled reactor dosimetry benchmark. The ACS method proved to be able to obtain accurate results while being approximately twice as efficient as using a constant quadrature in a standard source iteration scheme.
© Owned by the authors, published by EDP Sciences, 2016
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