Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Tue., October 28, 2014, at 11:00 AM - 12:00 PM (refreshments served at 10:40 AM)

Experiments with MUSIC, a MultiSampling Ionization Chamber

K. Ernst Rehm, Argonne National Laboratory, Argonne, IL
ORNL, Bldg. 6008 Large Conference Room

The fusion of neutron-rich carbon, oxygen or neon isotopes plays an important role for the explanation of the so-called X-ray superbursts which occur in the carbon-enriched outer layers of accreting neutron stars. While measurements of many of the critical fusion reactions (e.g., 24C + 24C) are outside today’s experimental capabilities, some systems closer to the valley of stability can already be measured using existing technologies. In this contribution I will report on measurements of the fusion cross sections of 10,12,13,14,15C on 12C with an active target-detector system consisting of a methane-filled MUlti-Sampling Ionization Chamber (MUSIC) and stable and radioactive beams obtained from the Argonne In-flight facility. The principle of this detector will be described and experimental results and future plans for similar studies with MUSIC will be discussed.

Contact: Alfredo Galindo-Uribarri, (865) 574-6124