C-library raft: Reconstruction algorithms for tomography. Applications to X-ray fluorescence tomography

There are many reconstruction algorithms for tomography, raft for short, and some of them are considered “classic” by researchers. The so-called raft library, provide a set of useful and basic tools, usually needed in many inverse problems that are related to medical imaging. The subroutines in raft are free software and written in C language; portable to any system with a working C compiler. This paper presents source codes written according to raft routines, applied to a new imaging modality called X-ray fluorescence tomography.Program summaryProgram title: raftCatalogue identifier: AEJY_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEJY_v1_0.htmlProgram obtainable from: CPC Program Library, Queenʼs University, Belfast, N. IrelandLicensing provisions: GNU General Public Licence, version 2No. of lines in distributed program, including test data, etc.: 218 844No. of bytes in distributed program, including test data, etc.: 3 562 902Distribution format: tar.gzProgramming language: Standard C.Computer: Any with a standard C compilerOperating system: Linux and WindowsClassification: 2.4, 2.9, 3, 4.3, 4.7External routines:raft:autoconf 2.60 or later – http://www.gnu.org/software/autoconf/GSL scientific library – http://www.gnu.org/software/gsl/Confuse parser library – http://www.nongnu.org/confuse/raft-fun: gengetopt – http://www.gnu.org/software/gengetopt/gengetopt.htmlNature of problem: Reconstruction algorithms for tomography, specially in X-ray fluorescence tomography.Solution method: As a library, raft covers the standard reconstruction algorithms like filtered backprojection, Novikovʼs inversion, Hoganʼs formula, among others. The input data set is represented by a complete sinogram covering a determined angular range. Users are allowed to set solid angle range for fluorescence emission at each algorithm.Running time: 1 second to 15 minutes, depending on the data size.

► Tomographic reconstructions using free C codes.
► X-rays fluorescence computed tomography (xfct) simulations.
► Free software for xfct called RAFT.
► Practical examples of reconstructions using RAFT.
► Short “how to” in using the proposed library.