Status and progress of novel photon detectors based on THGEM and hybrid MPGD architectures

Alexeev, M.; Birsa, R.; Bradamante, F.; Büchele, M.; Chiosso, M.; Ciliberti, P.; Torre, S. Dalla; Dasgupta, S.; Duic, V.; Finger, M.; Fischer, H.; Giorgi, M. A.; Gobbo, B.; Gregori, M.; Herrmann, F.; Königsmann, K.; Levorato, S.; Maggiora, A.; Martin, A.; Menon, G.; Nováková, Kateřina; Nový, J.; Panzieri, D.; Pereira, F.; Santos, C.; Sbrizzai, G.; Schiavon, P.; Schopferer, S.; Slunečka, M.; Sozzi, F.; Steiger, L.; Šulc, M.; Takekawa, S.; Tessarotto, F.; Veloso, J.F.C.A.

doi:10.1088/1748-0221/8/12/c12005

Cited by 15 publications

(8 citation statements)

References 50 publications

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“…They have intrinsic mechanical stiffness, and are robust against damages produced by occasional electrical discharges. Efforts have resulted in improved electrical stability by using a dedicated polishing protocol applied to the industrially-produced THGEM electrodes; an increased gain uniformity in large-size multiplier is reached by careful control of the electrode-thickness uniformity [20].…”

Section: Mpgd Progress During the Rd51 Years: The Consolidation Of Th...mentioning

confidence: 99%

R&D Proposal, RD51 Extension Beyond 2018

Torre,

Oliveri,

Ropelewski

et al. 2018

Preprint

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The RD51 Collaboration, in charge of the development and dissemination of MicroPattern Gaseous Detectors (MPGD) since 2008, proposes to extend its activity, after 2018, for a further five-year term. Since the RD51 initial years, the community of MPGD developers and users has grown considerably. It is reflected by the many MPGD-based applications in high energy and nuclear physics experiments as well as in other basic and applied-research fields. They rely on the parallel progress of detector concepts and associated technologies. The cultural, infrastructure and networking support offered by RD51 has been essential in this process. The rich portfolio of MPGD projects, under constant expansion, is accompanied by novel ideas on further developments and applications.The proposed next term of RD51 activities aims at bringing a number of detector concepts to maturity, initiating new projects and continuing the support to the community. Among leading proposed projects are ultrafast, high-rate MPGDs; discharge-free, high-resolution imaging detectors with resistive elements and highgranularity integrated electronics; novel noble-liquid detector concepts, including electroluminescence in gas bubbles; studies of environment-friendly counting gases and long-term sealed-mode operation; optical-readout detectors with radiation-hard imagers for fundamental research experiments, radiography and other domains.The proposed R&D program is also expected to enrich our basic knowledge in detector physics, to form a generation of young detector experts -paving the way to new detector concepts and applications. The vast R&D program requires acquiring additional, up-to-date expertise in advanced technologies.

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Section: Mpgd Progress During the Rd51 Years: The Consolidation Of Th...mentioning

confidence: 99%

R&D Proposal, RD51 Extension Beyond 2018

Torre,

Oliveri,

Ropelewski

et al. 2018

Preprint

View full text Add to dashboard Cite

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“…The breakdown voltage of a no-rim THGEM structure is given by the Paschen's law and reaches ∼2200 V for a 400 µmthick structure in air. Experience shows, however, that large-area THGEMs rarely reach this value due to irregular hole borders and defects related to the production procedure [7]. Therefore, a dedicated post-production treatment is necessary in order to smooth out the hole edges and remove defects or other imperfections coming from the drilling of the holes.…”

Section: Introductionmentioning

confidence: 99%

Systematic investigation of critical charge limits in Thick GEMs

Gasik,

Lautner,

Fabbietti

et al. 2022

Preprint

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We present discharge probability studies performed with a single Thick Gas Electron Multiplier (THGEM) irradiated with alpha particles in Ar-CO 2 and Ne-CO 2 mixtures. We observe a clear dependency of the discharge stability on the noble gas and quencher content pointing to lighter gases to be more stable against the development of streamer discharges. A detailed comparison of the measurements with Geant4 simulations allowed us to extract the critical charge value leading to the formation of a spark in a THGEM hole, which is found to be within the range of (3-7) ×10 6 electrons, depending on the gas mixture.Our experimental findings are compared to previous GEM results. We show that the discharge probability of THGEMs exceeds the one measured with GEMs by orders of magnitude. This can be explained with simple geometrical considerations, where primary ionization is collected by a lower number of holes available in a THGEM structure, reaching higher primary charge densities and thus increasing the probability of a spark occurrence. However, we show that the critical charge limits are similar for both amplification structures.

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“…For STCF barrel PID, it is required that the detector is able to operated at high luminosity environment, the martial budge is less than 20%, and thickness of the detector is less than 20 cm. In order to meet those requirements, the hybrid micro-patter gas detector(MPGD) [5] based RICH detector with approximate focusing design is adopted as the baseline design.…”

Section: Introductionmentioning

confidence: 99%

“…The STCF RICH detector consists of a layer of CsI coated thick gas electron multipliers (THGEM) [6] and a resistive MicroMegas (MM) [7] on a pad segmented anode. The MPGD detector has been demonstrated to be able to operate under a high counting rate with lower ion back-flow suppression while maintaining a high effective gain [5,8]. The CsI coated THGEM acts as a reflective photo-cathode.…”

Section: Introductionmentioning

confidence: 99%

Study of Hybrid MicroPattern Gas Detector with CsI Photocathode For Super Tau-Charm Factory RICH

Li¹,

Liu²,

Liu³

et al. 2022

Preprint

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Super τ -Charm facility(STCF) is a future electron-position collider operating at τ -Charm energy region aimed to study hadron structure and spectroscopy.The baseline design of the STCF barrel particle identification(PID) detector in the momentum range up to 2 GeV/c is provided by a Ring Imaging Cherenkov Counter(RICH). The architecture of the RICH is an approximately focusing design with liquid perfluorohexane sealed in the quartz container as radiator and a hybrid combination of a CsI coated layers of THGEMs and a Micromegas as the photo-electron detector. A 16 × 16 cm 2 prototype with quartz radiator has been built and tested at DESY. It was stably operated with 10 5 effective gain. In this paper, the design, the performance, the reconstruction algorithm and the systematic error for single photon electron angular resolution in the aspect of RICH detectors are discusses.

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Status and progress of novel photon detectors based on THGEM and hybrid MPGD architectures

Cited by 15 publications

References 50 publications

R&D Proposal, RD51 Extension Beyond 2018

R&D Proposal, RD51 Extension Beyond 2018

Systematic investigation of critical charge limits in Thick GEMs

Study of Hybrid MicroPattern Gas Detector with CsI Photocathode For Super Tau-Charm Factory RICH

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