442 citations · 5.6k across the 120 of their papers we have counts for
125 papers
Gain-Layer Project
Niels G. Sorgenfrei, Anna Rita Altamura, Cristina Besleaga +18
Gain-layer degradation from exposure to radiation limits the use of Low-Gain Avalanche Diodes (LGADs) in high energy particle physics detector experiments. Proper understanding of…
On the nature and charge state of the X-Defect, a radiation-induced Silicon defect with field-enhanced charge carrier emission
Niels Sorgenfrei, Yana Gurimskaya, Anja Himmerlich +4
The elusive X-Defect, a defect found in low-resistivity -type Silicon after irradiation, observed as a low-temperature shoulder of the $\mathrm{B}_\mathrm{i}\mathrm{O}_\mathrm{i…
The CMS Phase-2 Fast Beam Condition Monitor prototype test with beam
G. Auzinger, H. Bakhshiansohi, A. E. Dabrowski +40
The Fast Beam Condition Monitor (FBCM) is a standalone luminometer for the High Luminosity LHC (HL-LHC) program of the CMS Experiment at CERN. The detector is under development and…
Is the gain-voltage dependence of SiPMs linear?
M. Antonello, L. Brinkmann, E. Garutti +2
The gain-voltage dependence for SiPMs from V. Chmill et al., Study of the breakdown voltage of SiPMs, is reanalyzed and a non-linearity at the sub-percent level is observed. Simula…
Electronics design and testing of the CMS Fast Beam Condition Monitor for HL-LHC
K. Shibin, G. Auzinger, H. Bakhshiansohi +24
The high-luminosity upgrade of the LHC (HL-LHC) brings unprecedented requirements for precision bunch-by-bunch luminosity measurement and beam-induced background monitoring in real…
Measurement of the fractional radiation length of a pixel module for the CMS Phase-2 upgrade via the multiple scattering of positrons
The Tracker Group of the CMS Collaboration
High-luminosity particle collider experiments such as the ones planned at the High-Luminosity Large Hadron Collider require ever-greater vertexing precision of the tracking detecto…
Beam Test Performance Studies of CMS Phase-2 Outer Tracker Module Prototypes
The Tracker Group of the CMS Collaboration
A new tracking detector will be installed as part of the Phase-2 upgrade of the CMS detector for the high-luminosity LHC era. This tracking detector includes the Inner Tracker, equ…
The CMS Fast Beam Condition Monitor for HL-LHC
G. Auzinger, H. Bakhshiansohi, A. Dabrowski +28
The high-luminosity upgrade of the LHC brings unprecedented requirements for real-time and precision bunch-by-bunch online luminosity measurement and beam-induced background monito…
SiPM understanding using simple Geiger-breakdown simulations
R. Klanner, J. Schwandt
The results of a 1-D Monte-Carlo program, which simulates the avalanche multiplication in diodes with depths of the order of 1 m based on the method proposed in Ref.1, are prese…
Evaluation of Planar Silicon Pixel Sensors with the RD53A Readout Chip for the Phase-2 Upgrade of the CMS Inner Tracker
The Tracker Group of the CMS Collaboration
The Large Hadron Collider (LHC) at CERN will undergo an upgrade in order to increase its luminosity to cms. The increased luminosity during this…
Investigation of high resistivity p-type FZ silicon diodes after 60Co γ-irradiation
Chuan Liao, Eckhart Fretwurst, Erika Garutti +6
In this work, the effects of Co -ray irradiation on high resistivity -type diodes have been investigated. The diodes were exposed to dose values of 0.1, 0.2, 1, a…
Investigation of the Boron removal effect induced by 5.5 MeV electrons on highly doped EPI- and Cz-silicon
Chuan Liao, Eckhart Fretwurst, Erika Garutti +8
This study focuses on the properties of the BO (interstitial Boron~-~interstitial Oxygen) and CO (interstitial Carbon~-~interstitial Oxy…
PeakOTron: A Python Module for Fitting Charge Spectra of Silicon Photomultipliers
Jack Rolph, Erika Garutti, Robert Klanner +2
A Python program has been developed which fits a published detector-response model to SiPM charge spectra to characterise SiPMs. Spectra for SiPMs illuminated by low intensity puls…
Study of the V state in neutron-irradiated silicon using photon-absorption measurements
Eckhart Fretwurst, Robert Klanner, Joern Schwandt +1
Pieces of -type silicon with 3.5 kcm resistivity have been irradiated by reactor neutrons to fluences of (1, 5 and 10) cm. Using light-transmiss…
Self-heating Effect in Silicon-Photomultipliers
E. Garutti, R. Klanner, E. Popova +3
The main effect of radiation damage in a Silicon-Photolumtiplier (SiPM) is a dramatic increase in the dark current. The power dissipated, if not properly cooled, heats the SiPM, wh…
Radiation damage uniformity in a SiPM
O. Bychkova, E. Garutti, E. Popova +5
A dedicated single-cell SiPM structure is designed and measured to investigate the radiation damage effects on the gain and breakdown voltage of SiPMs exposed to a reactor neutron…
Test beam performance of a CBC3-based mini-module for the Phase-2 CMS Outer Tracker before and after neutron irradiation
The Tracker Group of the CMS Collaboration
The Large Hadron Collider (LHC) at CERN will undergo major upgrades to increase the instantaneous luminosity up to 5-7.5 cms. This High Luminosity upgr…
Study of the band-gap energy of radiation-damaged silicon
R. Klanner, S. Martens, J. Schwandt +1
The transmission of silicon crystals irradiated by 24 GeV/c protons and reactor neutrons has been measured for photon energies, , between 0.95 and 1.3 eV. From the transmission…
Can the electric field in radiation-damaged silicon pad diodes be determined by admittance and current measurements?
R. Klanner, J. Schwandt
A method is proposed for determining the electric field in highly-irradiated silicon pad diodes using admittance-frequency (Y-f ), and current measurements (I). The method is appli…
Radiation hardness study using SiPMs with single-cell readout
E. Garutti, E. Popova, P. Parygin +5
A dedicated single-cell SiPM structure is designed and measured to investigate the radiation damage effects on the gain and turn-off voltage of SiPMs exposed to a reactor neutron f…
Depth-dependent charge collection profile of pad diodes
Mohammadtaghi Hajheidari, Erika Garutti, Joern Schwandt +1
The collected charge of two pad diodes is measured along the diode width using a 5:2 GeV electron beam at the DESY II beam test facility. The electron beam enters parallel to the r…
First measurement of large area jet transverse momentum spectra in heavy-ion collisions
CMS Collaboration
Jet production in lead-lead (PbPb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV is studied with the CMS detector at the LHC, using PbPb…
Measurement of the W production cross section in proton-proton collisions at 13 TeV and constraints on effective field theory coefficients
CMS Collaboration
A fiducial cross section for W production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb of data collected using the CMS detector…
A computer program to simulate the response of SiPMs
E. Garutti, R. Klanner, J. Rolph +1
A Monte Carlo program which simulates the response of SiPMs is presented. Input to the program are the mean number and the time distribution of Geiger discharges from light, as wel…