Speaker
Description
The operational parameters of gaseous detectors have historically been dictated by the noise level of the readout electronics. Using detailed simulations, we demonstrate that an ultra-low-noise pixelated ASIC, coupled to an integrated-grid amplification structure, could unlock an entirely new performance regime: High-efficiency single-electron detection at reduced electric field strengths. Our modeling indicates that lowering the detection threshold permits moderate gas gains (<80) without sacrificing detection efficiency. This addresses critical bottlenecks in diverse experimental conditions. In high-rate detectors, a lower gain naturally suppresses the space-charge effects of backflowing ions; and for negative-ion drift applications, the lower fields mitigate sparking risks while still achieving high efficiency. We evaluate the key design elements for such a detector, including the geometry of the amplification grid and the analog front-end electronics.
| Name of the speaker | Tanner Polischuk |
|---|---|
| Eligible for the Georges Charpak Young Scientist Award. | yes |