Multi-Sampling Ionization Chamber (MUSIC) for measurements of fusion reactions with radioactive beams
Multi-Sampling Ionization Chamber (MUSIC) for measurements of fusion reactions with radioactive beams
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DOI：
10.1016/j.nima.2015.07.030
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发表时间：
2015-11
影响因子：
1.4
通讯作者：
P. Carnelli;S. Almaraz-Calderon;K. Rehm;M. Albers;M. Alcorta;P. Bertone;B. DiGiovine;H. Esbensen;J. F. Niello;D. Henderson;C. Jiang;J. Lai;S. Marley;O. Nusair;T. Palchan-Hazan;R. Pardo;M. Paul;C. Ugalde
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文献类型：
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作者：
P. Carnelli;S. Almaraz-Calderon;K. Rehm;M. Albers;M. Alcorta;P. Bertone;B. DiGiovine;H. Esbensen;J. F. Niello;D. Henderson;C. Jiang;J. Lai;S. Marley;O. Nusair;T. Palchan-Hazan;R. Pardo;M. Paul;C. Ugalde
发展了一种用于低强度放射束聚变反应高效测量的检测技术。这项技术是基于多采样电离室(MUSIC)作为有源目标和探测系统运行的，其中电离气体既充当目标气体又充当计数气体。这样，我们可以在不改变束流能量的情况下，在由气体压力确定的能量范围内采样激发函数。该探测器为入射光束提供内部归一化，并大大缩短了测量时间。在第一个实验中，我们通过测量库仑势垒周围能量下的10，13，15C+12C聚变反应来测试该技术的性能。
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 the10,13,15C+12C fusion reactions at energies around the Coulomb barrier.