Speaker
Description
A preliminary study for a novel detector development, designed for integration as a fast veto system in the ACTAR TPC chamber [1],
will be presented. The primary goal of this study is to optimize the detection of low-energy charged beam particles while
ensuring minimal interference by positioning the sensor as far as possible from the TPC’s active region.
The detector consists of a fast thin plastic scintillator coupled to a silicon photomultiplier (SiPM) via a light guide. To
improve sensitivity to low-energy particles, minimizing their energy losses, a very thin platinum layer (34 nm thickness)
has been deposited on the scintillator surface, by using the DC Magnetron sputtering source at the DFA of Catania University.
This layer serves as a light-tight window, ensuring optimal functionality.
We will present the results of the prototype functional testing, emphasizing its performance and its suitability for
this specific application.
[1] T. Roger et al. Nuclear Inst. and Methods in Physics Research, A 895 (2018) 126
