HIBRA: A computer code for heavy ion binary reaction analysis employing ion track detectors

Abstract

Collisions of heavy ions many times result in production of only two reaction products. Study of heavy ions using ion track detectors allows experimentalists to observe the track length in the plane of the detector, depth of the tracks in the volume of the detector and angles between the tracks on the detector surface, all known as track parameters. How to convert these into useful physics parameters such as masses, energies, momenta of the reaction products and the Q-values of the reaction?This paper describes the (a) model used to analyze binary reactions in terms of measured etched track parameters of the reaction products recorded in ion track detectors, and (b) the code developed for computing useful physics parameters for fast and accurate analysis of a large number of binary events.A computer code, HIBRA (Heavy Ion Binary Reaction Analysis) has been developed both in C++ and FORTRAN programming languages. It has been tested on the binary reactions from 12.5 MeV/u 84Kr ions incident upon U (natural) target deposited on mica ion track detector.The HIBRA code can be employed with any ion track detector for which range–velocity relation is available including the widely used CR-39 ion track detectors. This paper provides the source code of HIBRA in C++ language along with input and output data to test the program. Program summaryProgram title: HIBRACatalogue identifier: AEYB_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEYB_v1_0.htmlProgram obtainable from: CPC Program Library, Queen’s University, Belfast, N. Ireland.Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 2623No. of bytes in distributed program, including test data, etc.: 472,583Distribution format: tar.gzProgramming language: C++.Computer: PCs.Operating system: Windows.RAM: Kilobytes.Classification: 17.7, 17.11, 21.1.Nature of problem: C++ code for computation of physics parameters from ion track parameters.Solution method: The mass–velocity relationships were developed and solved using Newton Raphson method.Running time: Seconds