A Multi-Sampling Ionization Chamber (MUSIC) for measurements of fusion reactions with radioactive beams

CARNELLI, PATRICIO FRANCISCO FLORENCIO; ALMARAZ CALDERÓN, S.; REHM, K.E.; ALBERS, M.; ALCORTA, M.; BERTONE, P.F.; DIGIOVINE, B.; ESBENSEN, H.; FERNÁNDEZ NIELLO, JORGE O.; HENDERSON, D.; JIANG, C.L.; LAI, J.; MARLEY, S.T.; NUSAIR, O.; PALCHAN HAZAN, T.; PARDO, R.; PAUL, M.; UGALDE, C.

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH A - ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPAMENT

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2015 vol. 799 p. 197 - 202

0168-9002

A detection technique for high-efficiency measurements of fusion reactions with low-intensity radioactive beams was developed. The technique is based on a Multi-Sampling Ionization Chamber (MUSIC) operating as an active target and detection system, where the ionization gas acts as both target and counting gas. In this way, we can sample an excitation function in an energy range determined by the gas pressure, without changing the beam energy. The detector provides internal normalization to the incident beam and drastically reduces the measuring time. In a first experiment we tested the performance of the technique by measuring the 10,13,15C+12C fusion reactions at energies around the Coulomb barrier.