Study of 16O dissociation through alpha scattering in inverse kinematics with the Active Target Time Projection Chamber (AT-TPC)

Abstract

The E20020 experiment uses an 16O beam over an active target of 4He from NSCL’s ReAccelerator facility ReA6 linear accelerator (linac) at 10 MeV/u. The experiment was carried out in the Facility for Rare Isotope Beams (FRIB) at Michigan State University with the Active Target Time Projection Chamber (AT TPC) [1] placed at the centre of the SOLARIS solenoid magnet. The experimenters used an 16O beam from the linear accelerator facility at 10 MeV/u. The AT-TPC was placed in the centre of the SOLARIS magnet, which was then ramped up to a field of 3 teslas (T). This magnetic field has field lines parallel to the beam propagation, causing the charged particles to bend and facilitating their containment in the detector for further analysis. The AT-TPC was filled with 700 Torr of pure helium gas, which was used as the reaction target and the detector media.