Publications de Albert Perez | EPFL Graph Search

Evaluation of HPK n plus -p planar pixel sensors for the CMS Phase-2 upgrade

Rakesh Chawla, Albert Perez, François Robert, Andrea Rizzi, Martin Fuchs, Stefano Michelis, Alexis Kalogeropoulos, Varun Sharma, Davide Ceresa, Ashish Sharma, David Vannerom, David Parker, Alessandro Caratelli, Thomas Muller, Yong Yang, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Ajay Kumar, Werner Lustermann, Xin Chen, Jing Li

To cope with the challenging environment of the planned high luminosity upgrade of the Large Hadron Collider (HL-LHC), scheduled to start operation in 2029, CMS will replace its entire tracking system. The requirements for the tracker are largely determine ...

Elsevier2023

Test beam performance of a CBC3-based mini-module for the Phase-2 CMS Outer Tracker before and after neutron irradiation

François Bianchi, Rakesh Chawla, Albert Perez, François Robert, Andrea Rizzi, Martin Fuchs, Stefano Michelis, Alexis Kalogeropoulos, Varun Sharma, Davide Ceresa, Ashish Sharma, David Vannerom, David Parker, Alessandro Caratelli, Simone Scarfì, Thomas Muller, Yong Yang, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Ajay Kumar, Werner Lustermann, Xin Chen, Jing Li

The Large Hadron Collider (LHC) at CERN will undergo major upgrades to increase the instantaneous luminosity up to 5-7.5 x 1034 cm-2s-1. This High Luminosity upgrade of the LHC (HL-LHC) will deliver a total of 3000-4000 fb-1 of proton-proton collisions at ...

2023

Beam test performance of a prototype module with Short Strip ASICs for the CMS HL-LHC tracker upgrade

François Bianchi, Rakesh Chawla, Albert Perez, François Robert, Andrea Rizzi, Stefano Michelis, Chun Xia, Tian Cheng, Qian Wang, Varun Sharma, Jessica Prisciandaro, Davide Ceresa, Francesco Fiori, Ashish Sharma, David Vannerom, David Parker, Alessandro Caratelli, Simone Scarfì, Yong Yang, Muhammad Ahmad, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Ajay Kumar, Werner Lustermann, Davide Di Croce, Hui Wang, Xin Chen, Jing Li

The Short Strip ASIC (SSA) is one of the four front-end chips designed for the upgrade of the CMS Outer Tracker for the High Luminosity LHC. Together with the Macro-Pixel ASIC (MPA) it will instrument modules containing a strip and a macro-pixel sensor sta ...

2022

The CMS Phase-1 pixel detector upgrade

François Bianchi, Rakesh Chawla, Albert Perez, François Robert, Andrea Rizzi, Stefano Michelis, Tian Cheng, Qian Wang, Varun Sharma, Jessica Prisciandaro, Davide Ceresa, Francesco Fiori, David Vannerom, Abhisek Datta, Alessandro Caratelli, Simone Scarfì, Yong Yang, Matthias Weber, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Ajay Kumar, Werner Lustermann, Ali Harb, Giorgia Rauco, Davide Di Croce, Hui Wang, Xin Chen, Jing Li

The CMS detector at the CERN LHC features a silicon pixel detector as its innermost subdetector. The original CMS pixel detector has been replaced with an upgraded pixel system (CMS Phase-1 pixel detector) in the extended year-end technical stop of the LHC ...

2021

Beam test performance of prototype silicon detectors for the Outer Tracker for the Phase-2 Upgrade of CMS

François Bianchi, Albert Perez, François Robert, Andrea Rizzi, Stefano Michelis, Quentin Python, Tian Cheng, Meng Xiao, Qian Wang, Varun Sharma, Davide Ceresa, Francesco Fiori, David Vannerom, Abhisek Datta, Alessandro Caratelli, Simone Scarfì, Yong Yang, Matthias Weber, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Werner Lustermann, Ali Harb, Giorgia Rauco, Davide Di Croce, Hui Wang, Xin Chen

A new CMS tracker detector will be installed for operation at the High Luminosity LHC (HL-LHC). This detector comprises modules with two closely spaced parallel sensor plates and front-end ASICs capable of transmitting tracking information to the CMS Level ...

2020

Enhanced operation of the Eu Ec test facility

Stefano Alberti, Damien Fasel, Timothy Goodman, Albert Perez, Jean-Philippe Hogge, Ugo Siravo, Jérémie Dubray

A Test Facility (TF) has been designed and installed at SPC to allow for the commissioning of the EU gyrotrons developed in view of their integration to the ITER EC system. The first phase of operation of this TF was dedicated to the development of the EU ...

ELSEVIER SCIENCE SA2019

The DAQ and control system for the CMS Phase-1 pixel detector upgrade

François Bianchi, Albert Perez, François Robert, Andrea Rizzi, Stefano Michelis, Quentin Python, Tian Cheng, Meng Xiao, Qian Wang, Varun Sharma, Davide Ceresa, Francesco Fiori, David Vannerom, Chia-Chun Chen, Abhisek Datta, Alessandro Caratelli, Simone Scarfì, Thomas Muller, Yong Yang, Matthias Weber, Kai Yi, Andromachi Tsirou, Georgios Anagnostou, Konstantin Androsov, Werner Lustermann, Ali Harb, Giorgia Rauco, Davide Di Croce, Hui Wang, Xin Chen

In 2017 a new pixel detector was installed in the CMS detector. This so-called Phase-1 pixel detector features four barrel layers in the central region and three disks per end in the forward regions. The upgraded pixel detector requires an upgraded data ac ...

2019

Electrical integration of two 1MW/2s dual-frequency gyrotrons into the EC-system of the TCV tokamak

Stefano Alberti, Damien Fasel, Albert Perez, Ugo Siravo, Jérémie Dubray

The electron-cyclotron heating system of the TCV tokamak is being enhanced as part of a major upgrade. Two MW-class dual-frequency gyrotrons will be installed. The first has already been delivered and will be fully commissioned on-site by the end of 2018 w ...

ELSEVIER SCIENCE SA2019

Influence Grinding Procedure, Limestone Content and PSD of Components on Properties of Clinker-Calcined Clay-Limestone Cements Produced by Intergrinding

Albert Perez, Karen Scrivener, Aurélie Rosine Favier

This paper looks at the study of intergrinding for the production of ternary cement based on clinker, calcined clay, limestone and gypsum with 50% of clinker substitution (LC3). The impact of grinding time on clinker, limestone and calcined clay PSD, and h ...

Springer2018

Neutral beam heating on the TCV tokamak

René Chavan, Basil Duval, Damien Fasel, Ambrogio Fasoli, Pierre Lavanchy, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Yves Martin, Albert Perez, Olivier Sauter, Stefano Coda, Ugo Siravo, Alexander Karpushov, Frédéric Dolizy, Matthieu Toussaint, Antoine Pierre Emmanuel Alexis Merle

2017

EMC improvement of an ECH power supplies system at TCV

Damien Fasel, Timothy Goodman, Albert Perez, Ugo Siravo, Jérémie Dubray

2017

Embedded control systems for gyrotrons applications based on NI solutions

Stefano Alberti, Philippe Cuanillon, Damien Fasel, Pierre-François Isoz, Albert Perez, Jean-Philippe Hogge, Ugo Siravo, Jérémie Dubray, Steve Couturier

2017

Commissioning of the heating neutral beam injector on the TCV tokamak

Damien Fasel, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Ugo Siravo, Alexander Karpushov, Yanis Andrebe, Jérémie Dubray

2017

Upgrade of a 30 kV/10 mA anode power supply for triode type gyrotron

Stefano Alberti, Damien Fasel, Blaise Marlétaz, Philippe Marmillod, Albert Perez, Jean-Philippe Hogge, Ugo Siravo, Jérémie Dubray

The RF power of a gyrotron with a triode type magnetron-injection-gun (MIG) can be directly controlled via the voltage applied between its anode and its cathode. Hence, the performance of this type of gyrotron relies directly on the possibilities offered b ...

Elsevier Science Sa2015

Supply equipment to the new NBH system for the TCV tokamak

Damien Fasel, Albert Perez, Ugo Siravo, Alexander Karpushov, Jérémie Dubray

The TCV tokamak is equipped with a high power real time-controllable Electron Cyclotron Heating (ECH) system, made of 9 gyrotrons capable of 500 kW RF power. One of the major scientific challenge, the TCV upgrades aimed to, will be the access to a wider ra ...

Elsevier Science2015

The Physics of the B Factories

François Bianchi, Albert Perez, Guillaume Wagner, Christian Jacoby, Jean Wicht, Aurelio Bay, Marc Kunze, Patricia Besson, Remi Léandre Albert Louvot, Jérôme Krebs, Nicolas Zwahlen, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Gerhard Raven, Mingkui Wang, Stewart Cole, Yan Yan, Nicolas Berger, Frédéric Blanc, Fang Liu, Liang Sun, Chao Wang, Yixing Chen, Yuan Yuan, Songmei Wu, Greig Alan Cowan, Doohyun Kim, Varun Sharma, Sourav Sen, Vladislav Balagura, Zhirui Xu, Sanjeev Kumar, Martin George Friedl, Yu Zheng, Bingqing Cheng, Maurizio Martinelli, Dipanwita Dutta, Junqiu Liu, Jian Wang, Ho Ling Li, Jun Yong Kim, Lei Zhang, , , , , , , , , , , , , , ,

Assessment of the ITER high-frequency magnetic diagnostic set

Thomas Maeder, René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Albert Perez, Gilbert Tonetti, Duccio Testa, Francisco Sanchez, Jérôme Guterl, Matthieu Toussaint

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with vertical bar delta B-MEAS/B-POL vertical bar similar to 10(-4) (similar to 1 G) for frequencies up to 2 MHz to resolve toroidal mode num ...

Elsevier2011

5MW CW supply system for the ITER gyrotrons Test Facility

Damien Fasel, Albert Perez, Ugo Siravo

ECH (Electron Cyclotron Heating) for ITER will deliver into the plasma 20 MW of RF power. The procurement of the RF sources will be shared equally between the three following partners: Europe, Japan and Russia. Moreover, Europe decided to develop a RF sour ...

Elsevier2011

MAGY: an innovative high voltage - low current power supply for gyrotron

Damien Fasel, Albert Perez, Ugo Siravo, Mauro Carpita

From the electrical point of view, the body and the anode of high power gyrotrons behave as capacitive loads. A highly dynamic power supply is, therefore, hard to achieve. The MAGY concept (Modulator for the Anode of a triode type GYrotron) embodies an inn ...

elsevier2011

Assessment of the ITER High-Frequency Magnetic Diagnostic Set

Thomas Maeder, René Chavan, Jonathan Bryan Lister, Jean-Marc Moret, Albert Perez, Gilbert Tonetti, Duccio Testa, Francisco Sanchez, Jérôme Guterl, Matthieu Toussaint

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with |deltaBmeas/BPOL|~1e-4 (~1G) for frequencies up to 2MHz to resolve toroidal mode numbers (n) in the range |n|=10 to |n|=50. A review of ...

2011