UHM High Energy Physics Seminar
Detectors of tomorrow … and after tomorrow
by Dr. Marco Cortesi
Tuesday, 4 April 2017 from to (Pacific/Honolulu)
at WAT ( 417A )
at WAT ( 417A )
In this short seminar, I will review in details some technical aspects of new detector concepts I have recently introduced at NSCL/FRIB. This includes: 1) The parallel-plate avalanche counter with optical readout (O-PPAC). Instead of conventional method based on charge readout, the particle localization in O-PPAC detector is achieved by recording the electroluminescence light; this lead to high signal-to-noise ratio, high dynamic range and better spatial resolution compared to the conventional PPAC. I will give an overview of the operational principle of the O-PPAC, a performance evaluation through a systematic Monte-Carlo simulation study, and recent results obtained with a first prototype. I will discuss also future development in the field of fast-neutron imaging spectroscopy applications. 2) The Multi-layer THGEM. The M-THGEM is a novel hole-type gaseous electron multiplier structure produced by multilayer printed circuit board technology. I will discuss main operational properties of MTHGEM-based detectors (e.g. maximum achievable gain, long-term stability, ion-feedback suppression, energy resolution, etc.); advantages and disadvantages over conventional cascade hole-type multipliers (i.e. GEM/THGEM); current and future applications. The latter include position-sensitive charge readout in the vapor phase of a double-phase liquid-noble gas (Ar/Xe) TPC, for dark matter search, neutrinoless double-beta decay, neutrino physics, fast neutron detection etc. I will conclude the seminar with some remarks and a general overview of plans and projects focused on radiation detector development for next generation of high-energy physics experiments and beyond.