Speaker
Description
A systematic study was performed on a single Thick Gas Electron Multiplier (THGEM) detector to optimize its time response. The detector consisted of a 0.8 mm double sided THGEM electrode with 0.5 mm diameter perforated holes with 0.1 mm rim, ordered in an hexagonal array with pitch of 1 mm, operated in Ar/CO$_{2}$ gas mixture. The induction gap was varied in the range between 0.1 to 2 mm. Signals were induced on the readout anode through an electrostatic dissipative glass of $\sim 10^{10}$ $\Omega$.cm bulk resistivity. Signals were recorded with a fast current amplifier and a charge-sensitive preamplifier and were analyzed to extract time- and charge-related properties. The best time performance in terms of rise time and pulse width was obtained with 0.2 mm induction gap. A detailed characterization of this configuration was performed including time resolution measurement with cosmic muons.
| Position | PhD student |
|---|---|
| Affiliation | Weizmann Institute of Science |
| Country | Israel |
