Multiple-sampling and tracking proportional chamber for nuclear reactions with low-energy radioactive isotope beams

Nuclear reactions with radioactive isotope beams at low energy near to the Coulomb barrier are very important for studying nuclear astrophysics, nuclear structure and the reaction mechanism involving unstable nuclei. Due to the limited intensity of low-energy radioactive isotope beams, a new device is required to carry out experiments with reasonable statistics. A multiple-sampling and tracking proportional chamber was constructed for measuring these reactions and tested with radioactive isotope beams. In addition, read-out electronics and a data-acquisition system were developed and tested along with the detector. It was proved that they are useful for detecting nuclear reactions in the low-energy region, like a fusion reaction and astrophysical nuclear reactions. (author)