Cross-section measurement in the reactions of 136Xe on proton, deuteron and carbon

Xiaohui Sun ,A Makinaga,Y Maeda ,Satoshi Takeuchi ,H Sakuraï ,H Otsu ,S Taniuchi ,Masanori Aikawa ,Yoshinori Shiga ,S Momiyama ,Hiroyuki Takeda ,Keita Nakano ,T Kubo ,Satoshi Kawakami ,D S Ahn ,G Lorusso ,Y Watanabe ,T Isobe ,M Nııkura ,N Fukuda ,H Wang ,S Koyama ,Hayata Yamasaki ,Pär-Anders Söderström ,Hiroshi Suzuki ,Yu Watanabe ,Kôichi Yoshida

doi:10.1051/epjconf/202023901037

Abstract

The isotopic production cross sections for the reactions of 136Xe induced by proton, deuteron and carbon at 168 MeV/u were obtained by using the inverse kinematics technique at RIKEN Radioactive Isotope Beam Factory. The target dependence of the cross sections was investigated systematically. It was found that for the light-mass products, the cross sections on carbon are larger than those on deuteron and proton. The measured cross sections on proton were compared with the previous data at higher reaction energies to study the energy dependence. The experimental results were compared with the theoretical calculations including both the intranuclear cascade and evaporation processes using PHITS and with the EPAX and SPACS empirical parameterizations.

Highlights

The spallation and fragmentation reaction play important roles in the production of the nuclei far from stability in radioactive beam facilities [1], which allow us to study the properties of both the proton-rich and neutron-rich nuclei
Σp becomes smaller than σd and σC, especially for the isotopes in the neutron-deficient side. These light-mass products are produced by the central collision, where the production cross sections mainly dependend on the excitation energy of the pre-fragments
The cross sections of the light-mass products are found to be larger for the carbon-induced reaction because of the higher deposited energy

Summary

Introduction

The spallation and fragmentation reaction play important roles in the production of the nuclei far from stability in radioactive beam facilities [1], which allow us to study the properties of both the proton-rich and neutron-rich nuclei. The production cross sections of the proton- and deuteron-induced spallation reactions for the long-lived fission products (LLFPs) 137Cs, 90Sr [2], 107Pd [3] and 93Zr [4] were measured. For both of the two aspects, having a systematic understanding of the reaction mechanisms is of great importance and the cross section data are required. By using the inverse kinematics technique, the reaction products were identified unambiguously and the target dependence can be investigated at the same reaction energy. The proton-induced cross sections were compared with the ones at 200, 500 and 1000 MeV/u to investigate the energy dependence

Experiment

Results and discussion

Summary