Timing performances of a Time-of-Flight detection system for the FRACAS large acceptance mass spectrometer

Abstract

In this work, we report on the timing performances of the Time-Of-Flight (TOF) apparatus of the FRACAS large acceptance mass spectrometer designed to measure the fragmentation cross sections of a ${}^{12}$C beam in hadrontherapy. The TOF system is composed of a Parallel Plate Avalanche Counter and scintillating detectors to create so-called $\Delta$E---TOF maps used in the fragment charge identification process. From tests with an alpha source and a ${}^{12}$C beam experiment, we measured a coincidence resolving time for the apparatus below 300 ps. Those results should lead in the final design to the identification of all the fragments produced by the interaction of ${}^{12}$C ions with thin targets for energies up to 400 MeV/nucleon.

8 pages, 10 figures

References in corpus (1)

• Zero degree measurements of 12C fragmentation at 95 MeV/nucleon on thin targets