Single channel PICOSEC Micromegas detector with improved time resolution
Abstract
This paper presents design guidelines and experimental verification of a single-channel PICOSEC Micromegas (MM) detector with an improved time resolution. The design encompasses the detector board, vessel, auxiliary mechanical parts, and electrical connectivity for high voltage (HV) and signals, focusing on improving stability, reducing noise, and ensuring signal integrity to optimize timing performance. A notable feature is the simple and fast reassembly procedure, facilitating quick replacement of detector internal components that allows for an efficient measurement strategy involving different detector components. The paper also examines the influence of parasitics on the output signal integrity. To validate the design, a prototype assembly and three interchangeable detector boards with varying readout pad diameters were manufactured. The detectors were initially tested in the laboratory environment. Finally, the timing performance of detectors with different pad sizes was verified using a Minimum Ionizing Particle (MIP) beam test. Notably, a record time resolution for a PICOSEC Micromegas detector technology with a CsI photocathode of 12.50.8 ps was achieved with a 10 mm diameter readout pad size detector.
Keywords
Cite
@article{arxiv.2406.05657,
title = {Single channel PICOSEC Micromegas detector with improved time resolution},
author = {A. Utrobicic and R. Aleksan and Y. Angelis and J. Bortfeldt and F. Brunbauer and M. Brunoldi and E. Chatzianagnostou and J. Datta and K. Dehmelt and G. Fanourakis and D. Fiorina and K. J. Floethner and M. Gallinaro and F. Garcia and I. Giomataris and K. Gnanvo and F. J. Iguaz and D. Janssens and A. Kallitsopoulou and M. Kovacic and B. Kross and P. Legou and M. Lisowska and J. Liu and M. Lupberger and I. Maniatis and J. McKisson and Y. Meng and H. Muller and E. Oliveri and G. Orlandini and A. Pandey and T. Papaevangelou and M. Pomorski and L. Ropelewski and D. Sampsonidis and L. Scharenberg and T. Schneider and L. Sohl and M. van Stenis and Y. Tsipolitis and S. E. Tzamarias and I. Vai and R. Veenhof and P. Vitulo and X. Wang and S. White and W. Xi and Z. Zhang and Y. Zhou},
journal= {arXiv preprint arXiv:2406.05657},
year = {2024}
}