CMOS MAPS upgrade for the Belle II Vertex Detector
| العنوان: | CMOS MAPS upgrade for the Belle II Vertex Detector |
|---|---|
| المؤلفون: | M. Babeluk, M. Barbero, J. Baudot, T. Bergauer, F. Bernlochner, S. Bettarini, F. Bosi, Y. Buch, G. Casarosa, J. Dingfelder, T. Fillinger, C. Finck, A. Frey, C. Hu, C. Irmler, C. Marinas, M. Massa, L. Massaccesi, M. Minuti, H. Pham, G. Rizzo, C. Schwanda, B. Schwenker, M. Schwickardi, C. Wessel |
| المساهمون: | Austrian Academy of Sciences (OeAW), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universität Bonn = University of Bonn, University of Pisa - Università di Pisa, University of Goettingen, Universitat de València (UV), Belle II VTX, European Project: 101004761,AIDAinnova |
| المصدر: | Nucl.Instrum.Meth.A 15th Pisa Meeting on Advanced Detectors 15th Pisa Meeting on Advanced Detectors, May 2022, La Biodola, Italy. pp.168015, ⟨10.1016/j.nima.2023.168015⟩ |
| بيانات النشر: | HAL CCSD, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | safety, Nuclear and High Energy Physics, geometry, vertex detector, BELLE, length, Upgrade, KEK-B, pixel, VTX, structure, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, DMAPS, detector, background, carbon, Belle II, CMOS, tracks, matter, radiation, fibre, technology, PXD, semiconductor detector, SVD, VXD, performance |
| الوصف: | International audience; The success of the Belle II experiment in Japan relies on the very high instantaneous luminosity, close to 6 × 1035cm−2s−1, expectedfrom the SuperKEKB collider. The corresponding beam conditions at such luminosity levels generate large rates of backgroundparticles and creates stringent constraints on the vertex detector, adding to the physics requirements. Current prospects for theoccupancy rates in the present vertex detector (VXD) at full luminosity fall close to the acceptable limits and bear large uncertainties.In this context, the Belle II collaboration is considering the possibility to install an upgraded VXD system around 2027 to providea sufficient safety margin with respect to the expected background rate and possibly enhance tracking and vertexing performance.The VTX collaboration has started the design of a fully pixelated VXD, called VTX, based on fast and highly granular DepletedMonolithic Active Pixel Sensors (DMAPS) integrated on light support structures.The two main technical features of the VTX proposal are the usage of a single sensor type over all the layers of the system and theoverall material budget below 2 % of radiation length, compared to the current VXD which has two different sensor technologiesand about 3 % of radiation length. A dedicated sensor (OBELIX), taylored to the specific needs of Belle II, is under development,evolving from the existing TJ-Monopix2 sensor. The time-stamping precision below 100 ns will allow all VTX layers to take part inthe track finding strategy contrary to the current situation. The first two detection layers are designed according to a self-supportedall-silicon ladder concept, where 4 contiguous sensors are diced out of a wafer, thinned and interconnected with post-processedredistribution layers. The outermost detection layers follow a more conventional approach with a cold plate and carbon fibresupport structure, and light flex cables interconnecting the sensors.This document will review the context, technical details and development status of the proposed Belle II VTX. |
| اللغة: | English |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::446c64ad8453d984bae4eb87c1e6f0d2Test https://hal.science/hal-03931052/file/BelleII_CMOS_Upgrade_final.pdfTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....446c64ad8453d984bae4eb87c1e6f0d2 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |