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A Novel Diamond-like Carbon based photocathode for PICOSEC Micromegas detectors

Fuente: arXiv

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Hauptverfasser:	Wang, X., Aleksan, R., Angelis, Y., Bortfeldt, J., Brunbauer, F., Brunoldi, M., Chatzianagnostou, E., Datta, J., Degmelt, K., Fanourakis, G., Fiorina, D., Floethner, K. J., Gallinaro, M., Garcia, F., Giomataris, I., Gnanvo, K., Iguaz, F. J., Janssens, D., Kallitsopoulou, A., Kovacic, M., Kross, B., Legou, P., Lisowska, M., Liu, J., Maniatis, I., McKisson, J., Meng, Y., Muller, H., Oliveri, E., Orlandini, G., Pandey, A., Papaevangelou, T., Pomorski, M., Ropelewski, L., Sampsonidis, D., Scharenberg, L., Schneider, T., Shang, L., Shao, M., Sohl, L., van Stenis, M., Tsipolitis, Y., Tzamarias, S. E., Utrobicic, A., Vai, I., Veenhof, R., Vitulo, P., White, S., Xi, W., Zhang, Z., Zhou, Y.
Format:	Preprint
Veröffentlicht:	2024
Schlagworte:	Instrumentation and Detectors High Energy Physics - Experiment
Online-Zugang:	Acceder al recurso
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_version_	1866910547904036864
author	Wang, X. Aleksan, R. Angelis, Y. Bortfeldt, J. Brunbauer, F. Brunoldi, M. Chatzianagnostou, E. Datta, J. Degmelt, K. Fanourakis, G. Fiorina, D. Floethner, K. J. Gallinaro, M. Garcia, F. Giomataris, I. Gnanvo, K. Iguaz, F. J. Janssens, D. Kallitsopoulou, A. Kovacic, M. Kross, B. Legou, P. Lisowska, M. Liu, J. Maniatis, I. McKisson, J. Meng, Y. Muller, H. Oliveri, E. Orlandini, G. Pandey, A. Papaevangelou, T. Pomorski, M. Ropelewski, L. Sampsonidis, D. Scharenberg, L. Schneider, T. Shang, L. Shao, M. Sohl, L. van Stenis, M. Tsipolitis, Y. Tzamarias, S. E. Utrobicic, A. Vai, I. Veenhof, R. Vitulo, P. White, S. Xi, W. Zhang, Z. Zhou, Y.
author_facet	Wang, X. Aleksan, R. Angelis, Y. Bortfeldt, J. Brunbauer, F. Brunoldi, M. Chatzianagnostou, E. Datta, J. Degmelt, K. Fanourakis, G. Fiorina, D. Floethner, K. J. Gallinaro, M. Garcia, F. Giomataris, I. Gnanvo, K. Iguaz, F. J. Janssens, D. Kallitsopoulou, A. Kovacic, M. Kross, B. Legou, P. Lisowska, M. Liu, J. Maniatis, I. McKisson, J. Meng, Y. Muller, H. Oliveri, E. Orlandini, G. Pandey, A. Papaevangelou, T. Pomorski, M. Ropelewski, L. Sampsonidis, D. Scharenberg, L. Schneider, T. Shang, L. Shao, M. Sohl, L. van Stenis, M. Tsipolitis, Y. Tzamarias, S. E. Utrobicic, A. Vai, I. Veenhof, R. Vitulo, P. White, S. Xi, W. Zhang, Z. Zhou, Y.
contents	The PICOSEC Micromegas (MM) detector is a precise timing gaseous detector based on a MM detector operating in a two-stage amplification mode and a Cherenkov radiator. Prototypes equipped with cesium iodide (CsI) photocathodes have shown promising time resolutions as precise as 24 picoseconds (ps) for Minimum Ionizing Particles. However, due to the high hygroscopicity and susceptibility to ion bombardment of the CsI photocathodes, alternative photocathode materials are needed to improve the robustness of PICOSEC MM. Diamond-like Carbon (DLC) film have been introduced as a novel robust photocathode material, which have shown promising results. A batch of DLC photocathodes with different thicknesses were produced and evaluated using ultraviolet light. The quantum efficiency measurements indicate that the optimized thickness of the DLC photocathode is approximately 3 nm. Furthermore, DLC photocathodes show good resistance to ion bombardment in aging test compared to the CsI photocathode. Finally, a PICOSEC MM prototype equipped with DLC photocathodes was tested in muon beams. A time resolution of around 42 ps with a detection efficiency of 97% for 150 GeV/c muons were obtained. These results indicate the great potential of DLC as a photocathode for the PICOSEC MM detector.
format	Preprint
id	arxiv_https___arxiv_org_abs_2406_08712
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	A Novel Diamond-like Carbon based photocathode for PICOSEC Micromegas detectors Wang, X. Aleksan, R. Angelis, Y. Bortfeldt, J. Brunbauer, F. Brunoldi, M. Chatzianagnostou, E. Datta, J. Degmelt, K. Fanourakis, G. Fiorina, D. Floethner, K. J. Gallinaro, M. Garcia, F. Giomataris, I. Gnanvo, K. Iguaz, F. J. Janssens, D. Kallitsopoulou, A. Kovacic, M. Kross, B. Legou, P. Lisowska, M. Liu, J. Maniatis, I. McKisson, J. Meng, Y. Muller, H. Oliveri, E. Orlandini, G. Pandey, A. Papaevangelou, T. Pomorski, M. Ropelewski, L. Sampsonidis, D. Scharenberg, L. Schneider, T. Shang, L. Shao, M. Sohl, L. van Stenis, M. Tsipolitis, Y. Tzamarias, S. E. Utrobicic, A. Vai, I. Veenhof, R. Vitulo, P. White, S. Xi, W. Zhang, Z. Zhou, Y. Instrumentation and Detectors High Energy Physics - Experiment The PICOSEC Micromegas (MM) detector is a precise timing gaseous detector based on a MM detector operating in a two-stage amplification mode and a Cherenkov radiator. Prototypes equipped with cesium iodide (CsI) photocathodes have shown promising time resolutions as precise as 24 picoseconds (ps) for Minimum Ionizing Particles. However, due to the high hygroscopicity and susceptibility to ion bombardment of the CsI photocathodes, alternative photocathode materials are needed to improve the robustness of PICOSEC MM. Diamond-like Carbon (DLC) film have been introduced as a novel robust photocathode material, which have shown promising results. A batch of DLC photocathodes with different thicknesses were produced and evaluated using ultraviolet light. The quantum efficiency measurements indicate that the optimized thickness of the DLC photocathode is approximately 3 nm. Furthermore, DLC photocathodes show good resistance to ion bombardment in aging test compared to the CsI photocathode. Finally, a PICOSEC MM prototype equipped with DLC photocathodes was tested in muon beams. A time resolution of around 42 ps with a detection efficiency of 97% for 150 GeV/c muons were obtained. These results indicate the great potential of DLC as a photocathode for the PICOSEC MM detector.
title	A Novel Diamond-like Carbon based photocathode for PICOSEC Micromegas detectors
topic	Instrumentation and Detectors High Energy Physics - Experiment
url	https://arxiv.org/abs/2406.08712