International Conference on Nuclear Data for Science and Technology 2010
J. Korean Phys. Soc. 59, 1111-1114
Paper ID: ND-1767
DOI: 10.3938/jkps.59.1111
PACS: 29.85.+c
A New Format for Handling Nuclear Data
Sang In Bak1, Rene Brun2, Federico Carminati2, Jong Seo Chai1, Andrei Gheata2, Mihaela Gheata2, Seung-Woo Hong1, Yacine Kadi1,2, Vijay Manchanda1,3, Tae-Sun Park1 and Claudio Tenreiro1,4
1 Sungkyunkwan University, Suwon, Republic of Korea
2 CERN, Geneva, Switzerland
3 BARC, Mumbai, India
4 Talca University, Santiago, Chile
Abstract
The ASCII ENDF format for nuclear data has been used for four decades. It is practical for human inspection and portability, but it is not very effective for manipulating and displaying the data or for using them in Monte-Carlo applications. In this paper we present a prototype of a nuclear data manipulation package (TNudy) based on the ROOT system (http://root.cern.ch). The ROOT object-oriented C++ framework is the de-facto standard in high energy and nuclear physics since ten years. Starting from the ENDF format, the data is stored in machine-portable binary format. Root files also offer a powerful direct access capability to their different sections and compressibility upon writing, minimising the disk occupancy. ROOT offers a complete library of visualisation and mathematical routines and the Virtual Monte-Carlo system, which allows running different transport Monte-Carlo (Geant 4, Geant 3) with common scoring and geometry modellers, which comes as part of ROOT. ROOT contains isotope decay data and the possibility to describe the evolution of isotopic vectors via Bateman equations. The addition of the ENDF information to Root will allow the development of a transport code for low energy neutrons and other combination of projectile target, either stand-alone as part of the Root system or in combination with some of the other Monte-Carlo systems within the framework of the Virtual Monte-Carlo.
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