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  4. Development of an Event Tracking Feature in OpenMC for Neutron Spectroscopy and Scatter Camera Systems
 
conference paper

Development of an Event Tracking Feature in OpenMC for Neutron Spectroscopy and Scatter Camera Systems

Saliba, Michel  
•
Romano, Paul
•
Tramm, John
Show more
2025
Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering

This paper presents the development and application of an event tracking feature within the OpenMC Monte Carlo code, designed for advanced neutron spectroscopy and scatter camera system simulations. The newly implemented feature enables the tracking of individual neutron collisions, with potential applications in nuclear non-proliferation, reactor physics, and nuclear security. Additionally, the feature holds potential for the calibration of neutron detectors, specifically in converting light output into energy deposited within the detectors. The implementation consists of a set of filters - such as reaction type, energy, cell, and material - that constrain the set of events that are tracked, a tie-in to the Python API to enable simple user input formats, and different file format saving options as OpenMC’s native HDF5-based format or Monte Carlo particle lists (MCPL). This feature is still in development and is not yet part of an OpenMC release; it remains subject to change. The verification of the new feature is performed using a model of an optically segmented scatter camera exposed to a 252Cf source. We apply the time-of-flight analysis technique to extract the neutron spectrum and infer the direction of the incoming source by the simple back-projection method.

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Type
conference paper
DOI
10.13182/MC25-47184
Scopus ID

2-s2.0-105010220371

Author(s)
Saliba, Michel  

École Polytechnique Fédérale de Lausanne

Romano, Paul

Argonne National Laboratory

Tramm, John

Argonne National Laboratory

Knudsen, Erik B.

United Neux

Siefman, Daniel

UC Berkeley’s Department of Nuclear Engineering

Pautz, Andreas  

École Polytechnique Fédérale de Lausanne

Pakari, Oskari  

École Polytechnique Fédérale de Lausanne

Date Issued

2025

Publisher

American Nuclear Society

Published in
Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025
ISBN of the book

9780894482229

Start page

1094

End page

1103

Subjects

Event Tracking

•

Monte Carlo simulation

•

Neutron Scattering

•

OpenMC

•

Time-of-Flight

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LRS  
Event nameEvent acronymEvent placeEvent date
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering

Denver, US

2025-04-27 - 2025-04-30

Available on Infoscience
July 25, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/252655
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