Investigating proton drip-line nuclei with Optical Time Projection Chamber

by Mr Marcin Pomorski (University of Warsaw)

Thursday 30 May 2013, 14:30 → 15:30 Europe/Zurich

26-1-022 (CERN)

Optical Time Projection Chamber (OTPC) is a novel detector, taking a new approach to gaseous chambers. In this detector the electrical signal is converted to light and read-out using a cutting-edge CCD camera and a fast photomultiplier. This technique allowed to register angular correlations of two protons emitted from ⁴⁵Fe. Such task was achieved for the first time and proved the three-body character of the two-proton radioactivity. In the talk I shall present data on another two-proton emitter investigated with the OTPC – ⁴⁸Ni, as well as data on beta-delayed emitters ⁴³Cr, ⁴⁴Cr and ⁴⁶Fe. The improvements in the detector itself over the last 5 years will also be mentioned.

Slides Pomorski_Isolde_seminar_2013.pdf