Conveners
LGAD: 1
- Nicolo Cartiglia (INFN Torino (IT))
LGAD: 2
- Gregor Kramberger (Jozef Stefan Institute (SI))
LGAD sensors have proven to be an excellent solution for 4D-tracking in HEP experiments thanks to the presence of internal gain that provides good time resolution also at high fluences (up to $\sim 2 \cdot 10^{15}$ neq/cm$^2$). However, approaching $10^{16}$ neq/cm$^2$, the internal gain is completely lost due to the acceptor removal effect, leading to a deterioration of the time...
The High Granularity Timing Detector (HGTD) is designed for the mitigation of pile-up effects in the ATLAS forward region and for bunch per bunch luminosity measurements. HGTD, based on Low Gain Avalanche Detector (LGAD) technology and covering the pseudorapidity region between 2.4 and 4.0, will provide high precision timing information to distinguish between collisions occurring close in...
The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase 2 upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). The addition of the MIP timing detector (MTD) to CMS will be critical to mitigate the impact of high pileup collisions anticipated during the HL-LHC. The MTD will provide timing...
The Low Gain Avalanche Detector (LGAD) is developed with the aim to serve as a timing detector for two leading HEP experiments in CERN, CMS and ATLAS. This means that it is adjusted for work with Minimum Ionizing Particles (MIP). However, its excellent timing resolution and good spatial resolution, have made LGAD an attractive solution in experiments where much higher charge is generated than...
We report an experimental investigation on charge multiplication in a no-gain (inter-pad) region in a multi-pad Ultra Fast Silicon Detector (UFSD). The UFSD sample we measured is not a standard segmented UFSD that is now accepted as CMS LGAD. It is a sample that has been produced in the Ti-LGAD RD50 production batch. Furthermore, this UFSD is not a trench LGAD (Ti-LGAD). This tested UFSD has...
In this work, we present a comprehensive analysis of the spatial and temporal resolutions of RSD sensors belonging to the second FBK RSD production (RSD2). The RSD2 production results from the optimization process performed on the FBK RSD1 sensor production. Specifically, RSD2 sensors have innovative read-out electrode layouts geared toward reaching a uniform response over the whole surface....
In this contribution, the performance of a Resistive Silicon Detector (RSD) measured with 4 GeV electrons at the DESY beam test facility is presented. The device-under-test comes from the second RSD production manufactured at FBK (RSD2). The RSD2 sensors feature a different design with respect to the previous production (RSD1), in order to improve the sharing of signals produced by ionizing...
Capacitive-coupled Low-Gain Avalanche Diode (AC-LGAD) is a semiconductor tracking detector with precise timing resolution and spatial resolution developed by KEK and Tsukuba group collaborating with Hamamatsu Photonics K.K. (HPK). A 100um x 100um pitch pixel type sensor and 80um pitch with 10mm length strip type sensor with 50um active thickness have been successfully developped with fully...
We will present the first beam test results with centimeter-scale AC-LGAD strip sensors, using the Fermilab Test Beam Facility, and a study of the performance of AC-LGAD sensors as a function of their thickness. Sensors of this type are envisioned for applications that require large-area precision 4D tracking coverage with economical channel counts, including timing layers for the Electron Ion...
The present study focuses on the performance evaluation of the first very thin Low Gain Avalanche Detectors (LGADs) prototypes produced by the Fondazione Bruno Kessler (FBK), with a thickness of 25 and 35 $\mu$m, and the introduction of a new concept that consists of two similar LGADs connected to the same board.
Despite its already impressive timing performance, for which this technology...
