Cross section measurement for the 10B(n ,t 2 α ) three-body reaction at 4.0, 4.5, and 5.0 MeV. I. Prediction of the experimental spectrum
Abstract
Cross sections of the 10B(n ,t 2 α ) three-body reaction were measured at En=4.0 ,4.5 , and 5.0 MeV using a twin gridded ionization chamber and a thin-film 10B sample. The present paper is the first part of the work. The experimental spectrum of the 10B(n ,t 2 α ) reaction measured by the gridded ionization chamber (GIC) was predicted. The 10B(n ,t 2 α ) reaction can proceed in three ways, which are referred to as 7Li**,8Be , and breakup channels. The energies and directional angles of the three particles in the final states for the 7Li**,8Be , and breakup channels were calculated, respectively. Based on these results, the one-dimensional and two-dimensional spectra were calculated through integration. Three kinds of interference reactions were taken into account, which were the 10B(n,α ) 7Li reaction, the H(n ,n )p reaction, and the (n ,α) reactions from the working gas of the GIC. Two effects were considered in the prediction of the experimental spectrum, which were the energy loss of the products in the sample and the wall effect of the sample position well. The predicted spectra play an important role in the guidance of the implementation of the experiment and the processing of the experimental data.
- Publication:
-
Physical Review C
- Pub Date:
- October 2017
- DOI:
- 10.1103/PhysRevC.96.044620
- Bibcode:
- 2017PhRvC..96d4620W