Organisation de Micro-Électronique Générale Avancée

Publications

2020

  • ALTIROC 1, a 25 ps time resolution ASIC for the ATLAS High Granularity Timing Detector
    • Agapopoulou C.
    • Dinaucourt P.
    • Dragone A.
    • Gong D.
    • de La Taille C.
    • Makovec N.
    • Markovic B.
    • Martin-Chassard G.
    • Milke C.
    • Morenas M.
    • Ruckman L.
    • Sacerdoti S.
    • Schwartzman A.
    • Seguin-Moreau N.
    • Serin L.
    • Su D.
    • Ye J.
    , 2020. 1 Abstract—Designed and characterized by the HGTD collaboration, ALTIROC belongs to the family of readout ASICs used at the Large Hadron Collider (LHC) for the High Luminosity-LHC upgrade. ALTIROC1 is a 25-channel ASIC designed in CMOS 130 nm to read out the 5 x 5 matrix of 1.3 mm x 1.3 mm Low Gain Avalanche Diodes (LGAD) of the ATLAS HGTD detector. The targeted combined time resolution of the sensor and its readout electronics from 35 ps/hit (initial) to 70 ps/hit (end of operational lifetime). Each ASIC channel integrates an RF preamplifier followed by a high speed discriminator and two TDCs for Time-of-Arrival and Time-Over-Threshold measurements as well as a local memory. This front-end must exhibit an extremely low jitter noise while keeping a challenging power consumption of less than 4.5 mW per channel. This conference proceeding summarizes the ASIC's architecture, its measured performances compared to simulation, along with the requirements for the HEP experiments. (10.1109/NSS/MIC42677.2020.9507972)
    DOI : 10.1109/NSS/MIC42677.2020.9507972
  • HGCROC-Si and HGCROC-SiPM: the front-end readout ASICs for the CMS HGCAL
    • Bombardi G.
    • Marchioro A.
    • Vergine T.
    • Bouyjou F.
    • Guilloux F.
    • Callier S.
    • Dulucq F.
    • El Berni M.
    • de La Taille C.
    • Raux L.
    • Thienpont D.
    • Extier S.
    • Firlej M.
    • Fiutowski T.
    • Idzik M.
    • Moron J.
    • Swientek K.
    , 2020. The two variants of HGCROC are the ASICs designed to readout the more than 6 million channels of the future HGCAL of CMS, which will consist of hexagonal silicon sensors for a large part but also SiPM-on-scintillators tiles. The SiPM version of the chip was made from the silicon version by adapting only the first amplifier stage. The first aspect is on the performance for both versions in terms of noise, charge and timing, the DAQ and Trigger paths, as well as results from irradiation qualification with total ionizing dose and heavy ions for single-event effects. The third version of HGCROC chip is a major digital release, with RadHard solutions and an additional buffer. (10.1109/NSS/MIC42677.2020.9508012)
    DOI : 10.1109/NSS/MIC42677.2020.9508012
  • Particle identification using Boosted Decision Trees in the Semi-Digital Hadronic Calorimeter prototype
    • Boumediene D.
    • Pingault A.
    • Tytgat M.
    • Bilki B.
    • Northacker D.
    • Onel Y.
    • Cho G.
    • Kim D.-W.
    • Lee S.C.
    • Park W.
    • Vallecorsa S.
    • Deguchi Y.
    • Kawagoe K.
    • Miura Y.
    • Mori R.
    • Sekiya I.
    • Suehara T.
    • Yoshioka T.
    • Caponetto L.
    • Combaret C.
    • Ete R.
    • Garillot G.
    • Grenier G.
    • Ianigro J.-C.
    • Kurca T.
    • Laktineh I.
    • Liu B.
    • Li B.
    • Lumb N.
    • Mathez H.
    • Mirabito L.
    • Steen A.
    • Alamillo E. Calvo
    • Fouz M.C.
    • Marin J.
    • Navarrete J.
    • Pelayo J. Puerta
    • Verdugo A.
    • Corriveau F.
    • Chadeeva M.
    • Danilov M.
    • Emberger L.
    • Graf C.
    • de Silva L.M.S.
    • Simon F.
    • Winter C.
    • Bonis J.
    • Breton D.
    • Cornebise P.
    • Gallas A.
    • Jeglot J.
    • Irles A.
    • Maalmi J.
    • Pöschl R.
    • Thiebault A.
    • Richard F.
    • Zerwas D.
    • Anduze M.
    • Balagura V.
    • Boudry V.
    • Brient J.-C.
    • Edy E.
    • Gastaldi F.
    • Guillaumat R.
    • Magniette F.
    • Nanni J.
    • Videau H.
    • Callier S.
    • Dulucq F.
    • de La Taille Ch.
    • Martin-Chassard G.
    • Raux L.
    • Seguin-Moreau N.
    • Cvach J.
    • Janata M.
    • Kovalcuk M.
    • Kvasnicka J.
    • Polak I.
    • Smolik J.
    • Vrba V.
    • Zalesak J.
    • Zuklin J.
    • Duan Y.Y.
    • Li S.
    • Guo J.
    • Hu J.F.
    • Lagarde Fabienne
    • Shen Q.P.
    • Wang X.
    • Wu W.H.
    • Yang H.J.
    • Zhu Y.F.
    Journal of Instrumentation, IOP Publishing, 2020, 15 (10), pp.P10009. (10.1088/1748-0221/15/10/P10009)
    DOI : 10.1088/1748-0221/15/10/P10009
  • The Mini-EUSO telescope on board the International Space Station: Launch and first observations
    • Marcelli L.
    • Bacholle S.
    • Barrillon P.
    • Battisti M.
    • Belov A.
    • Bertaina M.
    • Bisconti F.
    • Blaksley C.
    • Blin-Bondil S.
    • Cafagna F.
    • Cambiè G.
    • Capel F.
    • Casolino M.
    • Crisconio M.
    • Churilo I.
    • Cotto G.
    • de La Taille C.
    • Djakonow A.
    • Ebisuzaki T.
    • Fenu F.
    • Franceschi A.
    • Fuglesang C.
    • Gorodetzky P.
    • Haungs A.
    • Kajino F.
    • Kasuga H.
    • Khrenov B.
    • Klimov P.
    • Kochepasov S.
    • Kuznetsov V.
    • Marszał W.
    • Mignone M.
    • Mascetti G.
    • Miyamoto H.
    • Murashov A.
    • Napolitano T.
    • Olinto A.V.
    • Ohmori H.
    • Osteria G.
    • Porfilio M.Panasyuk M.
    • Poroshin A.
    • Parizot E.
    • Picozza P.
    • Piotrowski L.W.
    • Plebaniak Z.
    • Prévôt G.
    • Przybylak M.
    • Reali E.
    • Ricci M.
    • Sakaki N.
    • Shinozaki K.
    • Szabelski J.
    • Takizawa Y.
    • Turriziani S.
    • Traïche M.
    • Valentini G.
    • Wada S.
    • Wiencke L.
    • Yashin I.
    • Zuccaro-Marchi A.
    , 2021, 44 (2-3), pp.94. Mini-EUSO is a telescope that observes the Earth from the International Space Station by recording ultraviolet emissions (290–430 nm) of cosmic, atmospheric and terrestrial origin with a field of view of 44◦ and on different time scales, from a few microseconds upwards. The scientific objectives are manifold and span several fields of research: Ultra-High Energy Cosmic Rays, atmospheric phenomena such as ELVEs, meteors and meteoroids, maps of the Earth night-time ultraviolet emissions and others. In this paper we will describe the instrument, the launching phase and we will discuss some of its first observations. (10.1393/ncc/i2021-21094-5)
    DOI : 10.1393/ncc/i2021-21094-5
  • International Large Detector: Interim Design Report
    • Abramowicz Halina
    • Agatonovic Jovin Tatjana
    • Alonso Oscar
    • Amjad Mohammad Sohail
    • An Fenfen
    • Andricek Ladislav
    • Anduze Marc
    • Anguiano Justin
    • Antonov Evgeny
    • Aoki Yumi
    • Arteche Fernando
    • Attié David
    • Büscher Volker
    • Bach Ole
    • Balagura Vladislav
    • Baudot Jérome
    • Begunov Vadim
    • Behera Subhasish
    • Behnke Ties
    • Bellerive Alain
    • Belver Daniel
    • Benhammou Yan
    • Berggren Mikael
    • Berriaud Christophe
    • Bertolone Gregory
    • Besançon Marc
    • Besson Auguste
    • Beyer Jakob
    • Bezshyyko Oleg
    • Bhattacharya Deb Sankar
    • Bhattacharya Purba
    • Blazey Gerald
    • Bocharnikov Vladimir
    • Boronat Marca
    • Borysov Oleksandr
    • Bosley Robert
    • Boudry Vincent
    • Boumediene Djamel
    • Bourgeois Christian
    • Bozovic Jelisavcic Ivanka
    • Breton Dominique
    • Brianne Eldwan
    • Brient Jean-Claude
    • Briggl Konrad
    • Buesser Karsten
    • Callier Stephane
    • Calvo Alamillo Enrique
    • Carrillo Camilo
    • Catalán Ana
    • Chadeeva Marina
    • Chau Phi
    • Chera Madalina
    • Chetverushkin Boris
    • Chrzaszcz Marcin
    • Claus Gilles
    • Colas Paul
    • Colledani Claude
    • Combaret Christophe
    • Cornat Rémi
    • Corriveau Francois
    • Danilov Mikhail
    • Deguchi Yuto
    • Desch Klaus
    • Dieguez Angel
    • Diener Ralf
    • Dixit Madhu
    • Dong Mingyi
    • Dorokhov Andrei
    • Dozière Guy
    • Drutskoy Alexey
    • Dulucq Frederic
    • Dyshkant Alexander
    • Edy Evelyne
    • Eigen Gerald
    • Einhaus Ulrich
    • El Bitar Ziad
    • Elkhalii Amine
    • Emberger Lorenz
    • Esperante Danniel
    • Eté Rémi
    • Fang Yaquan
    • Fedorchuk Oleksiy
    • Firlej Miroslaw
    • Fiutowski Tomasz
    • Fleck Ivor
    • Fourches Nicolas
    • Fouz María Cruz
    • Francis Kurt
    • Fujii Kazuki
    • Fujii Keisuke
    • Fullana Esteban
    • Fusayasu Takahiro
    • Fuster Juan
    • Göttlicher Peter
    • Gadow Karsten
    • Gaede Frank
    • Gallas Alexandre
    • Ganjour Serguei
    • García Ignacio
    • García Cabrera Hector
    • Garillot Guillaume
    • Garutti Erika
    • Gastaldi Franck
    • Ghislain Patrick
    • Goffe Mathieu
    • Gomis Pablo
    • Gong Wenxuan
    • Gonnin Alexandre
    • Goswami Deepanjali
    • Goto Kiichi
    • Graf Christian
    • Gregor Ingrid-Maria
    • Grenier Gerald
    • Guillaumat Réi
    • Habermehl Moritz
    • Hagge Lars
    • Hartbrich Oskar
    • Hartjes Fred
    • Henschel Hans
    • Heuchel Daniel
    • Hidalgo Salvador
    • Himmi Abdelkader
    • Hu Tao
    • Hu-Guo Christine
    • Ianigro Jean-Christophe Tibor
    • Idzik Marek
    • Irles Adrian
    • Ishihara Hiroki
    • Ishikawa Akimasa
    • Jönsson Leif
    • Jaaskelainen Kimmo
    • Jeans Daniel
    • Jeglot Jimmy
    • Kacarevic Goran
    • Kachel Maciej
    • Kajiwara Shogo
    • Kalinowski Jan
    • Kaminski Jochen
    • Kamiya Yoshio
    • Karl Robert
    • Kato Yu
    • Kato Yukihiro
    • Kawada Shin-Ichi
    • Kawagoe Kiyotomo
    • Khan Sameen A
    • Kleinwort Claus
    • Kluit Peter
    • Kobayashi Makoto
    • Koffmane Christian
    • Komamiya Sachio
    • Korpachev Sergey
    • Kotera Katsushige
    • Krämer Uwe
    • Krüger Katja
    • Kunath Jonas
    • Kurata Masakazu
    • Kurca Tibor
    • Kvasnicka Jirí
    • Lacour Didier
    • Laktineh Imad
    • Lange Wolfgang
    • Lehtinen Suvi-Leena
    • Lesiak Tadeusz
    • Levy Aharon
    • Levy Itamar
    • Li Bo
    • Li Gang
    • Ligtenberg Cornelis
    • List Benno
    • List Jenny
    • Liu Linghui
    • Liu Yong
    • Liu Zhenan
    • Lohmann Wolfgang
    • Louzir Marc
    • Lu Shaojun
    • Lundberg Bjoern
    • Maalmi Jihane
    • Magniette Frédéric
    • Majumdar Nayana
    • Makida Yasuhiro
    • Malek Paul
    • Marín Jesús
    • Marshall John
    • Martens Stephan
    • Martin-Chassard Gisele
    • Masetti Lucia
    • Masuda Ryunosuke
    • Mathez Herve
    • Matsuda Takeshi
    • Mcdonald Kirk T
    • Mikhaylov Dmitry
    • Mirabito Laurent
    • Miroshin Sergey
    • Mitaroff Winfried
    • Miyamoto Akiya
    • Mizuno Takahiro
    • Mjörnmark Ulf
    • Mogi Takanori
    • Moortgat-Pick Gudrid
    • Morel Frédéric
    • Moreno Sergio
    • Mori Toshinori
    • Moron Jakub
    • Moya David
    • Mukhopadhyay Supratik
    • Munwes Yonathan
    • Nagamine Tadashi
    • Nanni Jérome
    • Napoly Olivier
    • Narita Shinya
    • Navarrete Jose Javier
    • Negishi Kentaro
    • Ninkovic Jelena
    • Noori Shirazi Amir
    • Ogawa Tomohisa
    • Okamura Takahiro
    • Omori Tsunehiko
    • Ono Hiroaki
    • Ootani Wataru
    • Oskarsson Anders
    • Östermann Lennart
    • Ouyang Qun
    • Pöschl Roman
    • Parraud Jean-Marc
    • Pawlik Bogdan
    • Pellegrini Giulio
    • Perello Martin
    • Perez Alejandro
    • Pham Hung
    • Piedrafita Javier
    • Pierre-Emile Thomas
    • Pingault Antoine
    • Pinto Olin Lyod
    • Polák Ivo
    • Popova Elena
    • Poulose Poulose
    • Pradas Alvaro
    • Prahl Volker
    • Price Tony
    • Provenza Ambra
    • Puerta Pelayo Jesús
    • Qi Huirong
    • Radkhorrami Yasser
    • Raux Ludovic
    • Raven Gerhard
    • Reinecke Mathias
    • Richard Francois
    • Richter Rainer
    • Riemann Sabine
    • Robles Manzano Maria Soledad
    • Rogan Christopher
    • Rolph Jack
    • Ros Eduardo
    • Rosmanitz Anna
    • Royon Christophe
    • Ruan Manqi
    • Ruiz-Jimeno Alberto
    • Sanuki Tomoyuki
    • Sasikumar Swathi Kollassery
    • Sato Yo
    • Saveliev Andrey
    • Saveliev Valery
    • Schäfer Oliver
    • Schmitt Christian
    • Schneekloth Uwe
    • Schörner-Sadenius Thomas
    • Schultz-Coulon Hans-Christian
    • Schuwalow Sergej
    • Sefkow Felix
    • Seguin-Moreau Nathalie
    • Sekiya Izumi
    • Settles Ronald
    • Shekhtman L
    • Shen Wei
    • Shiraz Ryousuke
    • Shoji Aiko
    • Simon Frank
    • Sinram Klaus
    • Smiljanic Ivan
    • Specht Matthieu
    • Stromhagen Richard
    • Sudo Yuji
    • Suehara Taikan
    • Sugimoto Yasuhiro
    • Sugiyama Akira
    • Swientek Krzysztof
    • Takahashi Tohru
    • Takeshita Tohru
    • Tamaya Yukinaru
    • Tanabe Tomohiko
    • Tauchi Toshiaki
    • Telnov Valery
    • Terlecki Pzremyslaw
    • Thiebault Alice
    • Tian Junping
    • Timmermans Jan
    • Titov Maxim
    • Tran Huong Lan
    • Tread Reima
    • Tsionou Dimitra
    • Tsuji Naoki
    • Tuchming Boris
    • Tytgat Michael
    • Ueno Takayuki
    • Uesugi Yuto
    • Uozumi Satoru
    • Valin Isabelle
    • Vallée Claude
    • Verdugo de Osa Antonio
    • Vidal Guillem
    • Videau Henri
    • Vila Iván
    • Villarrejo Miguel Angel
    • Volkov Denis
    • Vos Marcel
    • Vukasinovic Natasa
    • Wang Yan
    • Watanabe Takashi
    • Watson Nigel
    • Werthenbach Ulrich
    • Wilson Graham W
    • Wing Matthew
    • Winter Alasdair
    • Winter Marc
    • Wojtoń Tomasz
    • Yamamoto Hitoshi
    • Yamashita Satoru
    • Yonamine Ryo
    • Yoshioka Tamaki
    • Yu Boxiang
    • Yu Dan
    • Yuan Zhenxiong
    • Yumino Keita
    • Zarnecki Aleksander Filip
    • Zeitnitz Christian
    • Zerwas Dirk
    • Zhao Hang
    • Zhao Jingzhou
    • Zhao Ruiguang
    • Zhao Yüe
    • Zhu Hongbo
    • Zutshi Vishnu
    , 2020. The ILD detector is proposed for an electron-positron collider with collision centre-of-mass energies from 90~\GeV~to about 1~\TeV. It has been developed over the last 10 years by an international team of scientists with the goal to design and eventually propose a fully integrated detector, primarily for the International Linear Collider, ILC. In this report the fundamental ideas and concepts behind the ILD detector are discussed and the technologies needed for the realisation of the detector are reviewed. The document starts with a short review of the science goals of the ILC, and how the goals can be achieved today with the detector technologies at hand. After a discussion of the ILC and the environment in which the experiment will take place, the detector is described in more detail, including the status of the development of the technologies foreseen for each subdetector. The integration of the different sub-systems into an integrated detector is discussed, as is the interface between the detector and the collider. This is followed by a concise summary of the benchmarking which has been performed in order to find an optimal balance between performance and cost. To the end the costing methodology used by ILD is presented, and an updated cost estimate for the detector is presented. The report closes with a summary of the current status and of planned future actions.
  • Performance of a Front End prototype ASIC for picosecond precision time measurements with LGAD sensors
    • Agapopoulou C.
    • Blin S.
    • Blot A.
    • Castillo Garcia L.
    • Chmeissani M.
    • Conforti Di Lorenzo S.
    • de La Taille C.
    • Dinaucourt P.
    • Fallou A.
    • Garcia Rodriguez J.
    • Gkougkousis V.
    • Grieco C.
    • Grinstein S.
    • Guindon S.
    • Makovec N.
    • Martin-Chassard G.
    • Pellegrini G.
    • Rummler A.
    • Sacerdoti Sabrina
    • Seguin Moreau N.
    • Serin L.
    • Tricoli A.
    Journal of Instrumentation, IOP Publishing, 2020, 15 (07), pp.P07007. For the High-Luminosity phase of LHC, the ATLAS experiment is proposing the addition of a High Granularity Timing Detector (HGTD) in the forward region, to mitigate the effects of the increased pile-up. The chosen detection technology is Low Gain Avalanche Detector (LGAD) silicon sensors that can provide an excellent timing resolution below 50 ps. The front-end read-out ASIC must exploit the large signal derivative and small noise provided by the sensor, while keeping low power consumption. This paper presents the results on the first prototype of a front-end ASIC, named ALTIROC0, which contains the analog stages (preamplifier and discriminator) of the read-out chip. The ASIC was characterised both alone and as part of a module with a 2×2 LGAD array of 1.1×1.1 mm2 pads bump-bonded to it. The various contributions of the electronics to the time resolution were investigated in test-bench measurements with a calibration setup. Both when the ASIC is alone or with a bump-bonded sensor, the jitter of the ASIC is better than 20 ps for an injected charge of 10 fC . The time walk effect, which arises from the different preamplifier response for various injected charges, can be corrected up to 10 ps using a Time Over Threshold measurement. The combined performance of the ASIC and the LGAD sensor, which was measured during a beam test campaign in October 2018 with pions of 120 GeV energy at the CERN SPS, is around 40 ps for all measured modules. All tested modules show good efficiency and time resolution uniformity. (10.1088/1748-0221/15/07/P07007)
    DOI : 10.1088/1748-0221/15/07/P07007
  • Roadmap toward the 10 ps time-of-flight PET challenge
    • Lecoq Paul
    • Morel Christian
    • Prior John O.
    • Visvikis Dimitris
    • Gundacker Stefan
    • Auffray Etiennette
    • Križan Peter
    • Turtos Rosana Martinez
    • Thers Dominique
    • Charbon Edoardo
    • Varela Joao
    • de La Taille Christophe
    • Rivetti Angelo
    • Breton Dominique
    • Pratte Jean-François
    • Nuyts Johan
    • Surti Suleman
    • Vandenberghe Stefaan
    • Marsden Paul
    • Parodi Katia
    • Benlloch Jose Maria
    • Benoit Mathieu
    Physics in Medicine and Biology, IOP Publishing, 2020, 65 (21), pp.21RM01. Since the seventies, positron emission tomography (PET) has become an invaluable medical molecular imaging modality with an unprecedented sensitivity at the picomolar level, especially for cancer diagnosis and the monitoring of its response to therapy. More recently, its combination with x-ray computed tomography (CT) or magnetic resonance (MR) has added high precision anatomic information in fused PET/CT and PET/MR images, thus compensating for the modest intrinsic spatial resolution of PET. Nevertheless, a number of medical challenges call for further improvements in PET sensitivity. These concern in particular new treatment opportunities in the context personalized (also called precision) medicine, such as the need to dynamically track a small number of cells in cancer immunotherapy or stem cells for tissue repair procedures. A better signal-to-noise ratio (SNR) in the image would allow detecting smaller size tumours together with a better staging of the patients, thus increasing the chances of putting cancer in complete remission. Moreover, there is an increasing demand for reducing the radioactive doses injected to the patients without impairing image quality. There are three ways to improve PET scanner sensitivity: improving detector efficiency, increasing geometrical acceptance of the imaging device and pushing the timing performance of the detectors. Currently, some pre-localization of the electron-positron annihilation along a line-of-response (LOR) given by the detection of a pair of annihilation photons is provided by the detection of the time difference between the two photons, also known as the time-of-flight (TOF) difference of the photons, whose accuracy is given by the coincidence time resolution (CTR). A CTR of about 10 picoseconds FWHM will ultimately allow to obtain a direct 3D volume representation of the activity distribution of a positron emitting radiopharmaceutical, at the millimetre level, thus introducing a quantum leap in PET imaging and quantification and fostering more frequent use of 11C radiopharmaceuticals. The present roadmap article toward the advent of 10 ps TOF-PET addresses the status and current/future challenges along the development of TOF-PET with the objective to reach this mythic 10 ps frontier that will open the door to real-time volume imaging virtually without tomographic inversion. The medical impact and prospects to achieve this technological revolution from the detection and image reconstruction point-of-views, together with a few perspectives beyond the TOF-PET application are discussed. (10.1088/1361-6560/ab9500)
    DOI : 10.1088/1361-6560/ab9500
  • Beam test performance of the highly granular SiW-ECAL technological prototype for the ILC
    • Kawagoe K.
    • Miura Y.
    • Sekiya I.
    • Suehara T.
    • Yoshioka T.
    • Bilokin S.
    • Bonis J.
    • Cornebise P.
    • Gallas A.
    • Irles A.
    • Pöschl R.
    • Richard F.
    • Thiebault A.
    • Zerwas D.
    • Anduze M.
    • Balagura V.
    • Boudry V.
    • Brient J-C
    • Edy E.
    • Fayolle G.
    • Frotin M.
    • Gastaldi F.
    • Guillaumat R.
    • Lobanov A.
    • Louzir M.
    • Magniette F.
    • Nanni J.
    • Rubio-Roy M.
    • Shpak K.
    • Videau H.
    • Yu D.
    • Callier S.
    • Dulucq F.
    • de La Taille C.
    • Seguin-Moreau N.
    • Augustin J.E.
    • Cornat R.
    • David J.
    • Ghislain P.
    • Lacour D.
    • Lavergne L.
    • Parraud J.M.
    • Chai J.S.
    • Jeans D.
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2020, 950, pp.162969. The technological prototype of the CALICE highly granular silicon–tungsten electromagnetic calorimeter (SiW-ECAL) was tested in a beam at DESY in 2017. The setup comprised seven layers of silicon sensors. Each layer comprised four sensors, with each sensor containing an array of 256 5.5×5.5 mm 2 silicon PIN diodes. The four sensors covered a total area of 18 × 18 cm and comprised a total of 1024 channels. The readout was split into a trigger line and a charge signal line. Key performance results for signal over noise for the two output lines are presented, together with a study of the uniformity of the detector response. Measurements of the response to electrons for the tungsten loaded version of the detector are also presented. (10.1016/j.nima.2019.162969)
    DOI : 10.1016/j.nima.2019.162969