Ion backflow in thick GEM-based detectors of single photons

Alexeev, M.; Birsa, R.; Bradamante, F.; 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.; Liu, Q.; Maggiora, A.; Martin, A.; Menon, G.; Nerling, F.; Nováková, Kateřina; Nový, J.; Panzieri, D.; Pereira, F.; Santos, C.; Sbrizzai, G.; Schiavon, P.; Schill, C.; Schopferer, S.; Slunečka, M.; Sozzi, F.; Steiger, L.; Šulc, M.; Takekawa, S.; Tessarotto, F.; Veloso, J.F.C.A.

doi:10.1088/1748-0221/8/01/p01021

Cited by 28 publications

(10 citation statements)

References 39 publications

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“…Lastly, thin THGEM-based sampling elements are under development by our group for potential application in digital hadronic calorimeters (DHCAL) in future linear-collider experiments [23][24][25]. The wide interest in THGEM-based detectors has resulted in the development of production techniques and concepts (for example [26,27]), including the use of resistive films and materials for reducing the effects of occasional discharges [28][29][30]. In this context, the experience gained with various configurations of THGEM-based DHCAL sampling elements with resistive anodes [23,31] has led to the development of a particularly promising candidate -the Resistive-Plate WELL (RPWELL) [32].…”

Section: Introductionmentioning

confidence: 99%

First in-beam studies of a Resistive-Plate WELL gaseous multiplier

et al. 2016

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We present the results of the first in-beam studies of a medium size (10×10 cm 2 ) Resistive-Plate WELL (RPWELL):a single-sided THGEM coupled to a pad anode through a resistive layer of high bulk resistivity (∼10 9 Ωcm). The 6.2 mm thick (excluding readout electronics) single-stage detector was studied with 150 GeV muons and pions. Signals were recorded from 1×1 cm 2 square copper pads with APV25-SRS readout electronics. The single-element detector was operated in Ne/(5%CH 4 )at a gas gain of a few times 10 4 , reaching 99% detection efficiency at average pad multiplicity of ∼1.2. Operation at particle fluxes up to ∼10 4 Hz/cm 2 resulted in ∼23% gain drop leading to ∼5% efficiency loss. The striking feature was the discharge-free operation, also in intense pion beams. These results pave the way towards robust, efficient large-scale detectors for applications requiring economic solutions at moderate spatial and energy resolutions.

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Section: Introductionmentioning

confidence: 99%

First in-beam studies of a Resistive-Plate WELL gaseous multiplier

et al. 2016

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“…The Thick Gas Electron Multiplier (THGEM) [1] is a simple, robust and economic detector element; it can be industrially produced over large areas using standard Printed Circuit Board (PCB) technologies. Its properties and potential applications are reviewed in [2,3]; for recent works on THGEM properties in normal operation conditions see [4][5][6][7]. In the last few years, a considerable R&D effort was undertaken to evaluate the applicability of THGEM-based detectors as thin sampling elements in Digital Hadronic Calorimeters (DHCAL).…”

Section: Introductionmentioning

confidence: 99%

Beam studies of novel THGEM-based potential sampling elements for Digital Hadron Calorimetry

et al. 2013

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Beam studies of thin single-and double-stage THGEM-based detectors are presented. Several 10 × 10 cm 2 configurations with a total thickness of 5-6 mm (excluding readout electronics), with 1 × 1 cm 2 pads inductively coupled through a resistive layer to APV-SRS readout electronics, were investigated with muons and pions. Detection efficiencies in the 98% range were recorded with an average pad-multiplicity of ∼ 1.1. The resistive anode resulted in efficient discharge damping, with few-volt potential drops; discharge probabilities were ∼ 10 −7 for muons and 10 −6 for pions in the double-stage configuration, at rates of a few kHz cm 2 . These results, together with the robustness of THGEM electrodes against spark damage and their suitability for economic production over large areas, make THGEM-based detectors highly competitive compared to the other technologies considered for the SiD-DHCAL.

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“…MPGDs offer many advantages: unprecedented spatial resolution (down to tenths of a µm), high-rate capability (>10 6 Hz mm −2 ), large sensitive area, operational stability, increased radiation hardness, high time resolutions and good counting rate. GEM, MicroMega and some designs resulting from their evolution, have proven to be established technologies that meet the requirements for large area trackers [56,57], TPC [58,59], RICHs [60] and are under consideration as calorimeter active sampling planes for the experiments at the incoming linear collider. MPGDs are also widely considered for applications outside HEP: in astro-particle and neutrino physics, medical imaging, materials science and screening for homeland security.…”

Section: Gaseous Detectorsmentioning

confidence: 99%

Trends in research and development for future detectors

Cattai¹

2013

Phys. Scr.

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Development of novel detector concepts has always played a major role in supporting and enabling scientific research. In the forthcoming phase of high energy physics (HEP), the design and development of new detectors and detector concepts will be even more important than it was in the past owing to the harsh environmental conditions and the challenging requests imposed by the physicists' needs for: improved spatial and time resolution, innovative functions, acquisition speed, radiation tolerance, minimal power consumption, robustness and reliability, minimal material and more. This overview addresses the challenges that upgrades and future projects in HEP will impose in terms of novel technologies and stresses the detectors' potential and limitations in attempting to achieve the scientific goals. In addition the increasingly strong dependence on large-scale industrial production and industrial development, especially in the area of integrated electronics, sensors and large complex systems will be addressed.

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Ion backflow in thick GEM-based detectors of single photons

Cited by 28 publications

References 39 publications

First in-beam studies of a Resistive-Plate WELL gaseous multiplier

First in-beam studies of a Resistive-Plate WELL gaseous multiplier

Beam studies of novel THGEM-based potential sampling elements for Digital Hadron Calorimetry

Trends in research and development for future detectors

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