NJOY+NCrystal: an open-source tool for creating thermal neutron scattering libraries

التفاصيل البيبلوغرافية
العنوان: NJOY+NCrystal: an open-source tool for creating thermal neutron scattering libraries
المؤلفون: Ramic, Kemal, Damian, Jose Ignacio Marquez, Kittelmann, Thomas, Di Julio, Douglas D., Campi, Davide, Bernasconi, Marco, Gorini, Giuseppe, Santoro, Valentina
سنة النشر: 2021
المجموعة: Condensed Matter
Physics (Other)
مصطلحات موضوعية: Physics - Instrumentation and Detectors, Condensed Matter - Materials Science
الوصف: In this work we present NJOY+NCrystal, a tool to generate thermal neutron scattering libraries with support for coherent and incoherent elastic components for crystalline solid materials. This tool, which is a customized version of NJOY, was created by modifying the nuclear data processing program NJOY to call the thermal scattering software library NCrystal, and includes a proposed change in the ENDF-6 format to store both the coherent and incoherent elastic components. Necessary changes to enable this format in NJOY, as well as to sample it in the OpenMC Monte Carlo code, are detailed here. Examples of materials that are coherent-dominant, incoherent-dominant, and mixed elastic scatterers are presented, as well as the creation of novel libraries for MgH$_2$ and MgD$_2$, that are under consideration as advanced neutron reflectors in the HighNESS project at the European Spallation Source. NJOY+NCrystal simplifies greatly the process to generate thermal scattering libraries (TSL) and this is exemplified with 213 new and updated TSL evaluations.
نوع الوثيقة: Working Paper
DOI: 10.1016/j.nima.2021.166227
URL الوصول: http://arxiv.org/abs/2108.11737
رقم الانضمام: edsarx.2108.11737
قاعدة البيانات: arXiv
الوصف
DOI:10.1016/j.nima.2021.166227