FAST 2023

Contribution List

14. Welcome

Angelo SCRIBANO, Christophe Royon (The University of Kansas (US))

29/05/2023, 09:00

15. Generic 4D-tracker developments in sensors and electronics and synergies with the CMS Endcap Timing Layer for HL-LHC

Artur Apresyan (Fermi National Accelerator Lab. (US))

29/05/2023, 09:10

2. MONOLITH - picosecond time stamping capabilities in fully monolithic highly granular silicon pixel detectors

Giuseppe Iacobucci (Universite de Geneve (CH))

29/05/2023, 09:40

The MONOLITH ERC Advanced project aims at producing a monolithic silicon pixel ASIC with 50µm pixel pitch and picosecond-level time stamping. The two main ingredients of the project are fast and low-noise SiGe BiCMOS electronics and a novel sensor concept, the Picosecond Avalanche Detector (PicoAD). The PicoAD uses a patented multi-PN junction to engineer the electric field and produce a...

16. High timing accuracy from a microchannel plate PMT with 256 ASIC readout channels

James Milnes

29/05/2023, 10:10

51. Precision timing measurement in CMS

Federico De Guio (Universita & INFN, Milano-Bicocca (IT))

29/05/2023, 11:10

A new timing detector in CMS will measure minimum ionizing particles (MIPs) with a time resolution of about 30-40 ps for MIP signals at a rate of 2.5 Mhit/s per channel at the beginning of HL-LHC operation. The precision time information from this MIP timing detector (MTD) will reduce the effects of the high levels of pileup expected at the HL-LHC, bringing new capabilities to the CMS...

3. Time resolution of single pixel irradiated 3D devices up to 10^{17}mn/cm^2 at 120 GeV SPS pion beams

Dr Vagelis Gkougkousis (CERN)

29/05/2023, 11:40

The proven radiation hardness of silicon 3D devices up to fluences of $1 \times 10^{17}\;n_{eq}/cm^{2}$ makes them an excellent choice for next generation trackers, providing $<10\;\mu m$ position resolution at a high multiplicity environment. The anticipated pile-up increase at HL-LHC conditions and beyond, requires the addition of < 50 ps per hit timing information to successfully resolve...

58. A real time sub-picosecond clock phase correction system with a dynamic range of 256ps

Rohith Saradhy (University of Minnesota (US))

29/05/2023, 12:05

The use of precision timing to measure time-of-flight or to distinguish events from the same bunch crossing in collider detectors has become a common feature of many modern experiments. Currently achieving a precision of 30 picoseconds is seen as an attainable goal. To move to a precision close to one picosecond will require further advances in our time measurement technology. One central...

20. Discussion

29/05/2023, 12:30

40. On the way to the 10 ps TOFPET challenge

Paul Rene Michel Lecoq (CERN)

29/05/2023, 15:30

21. Results on fast timing with scintillators

Etiennette Auffray Hillemanns (CERN)

29/05/2023, 16:00

22. High Precision Time of Flight system using Large Area Picosecond Photodetectors

Jinseo Park (The University of Chicago)

29/05/2023, 16:30

17. Advancements in Low Gain Avalanche Detectors (LGAD) performance study: latest results on very thin sensors and investigation of the new “double-LGAD” concept

Sofia Strazzi (Universita e INFN, Bologna (IT))

29/05/2023, 17:30

This presentation focuses on the specific R&D on the state-of-the-art Low Gain Avalanche Detectors (LGADs), aimed at improving their timing performance to meet the demanding requirements of future-generation experiments. In particular, the present study focuses on evaluating the performance of the first very thin LGAD prototypes produced by the Fondazione Bruno Kessler (FBK), with a thickness...

49. TCAD simulations of DC-RSD LGAD devices

Mr Alessandro Fondacci (INFN Perugia (IT))

29/05/2023, 18:00

24. Discussion

29/05/2023, 18:30

25. Experiences with picosecond level timing in large systems

Dr Stefan Ritt (Paul Scherrer Institut (Switzerland))

30/05/2023, 09:00

9. Precise timing at very high fluences

Valentina Sola (Universita e INFN Torino (IT))

30/05/2023, 09:30

Future experiments at very high-energy and high-intensity collider machines foresee the necessity to have precise timing measurements, with a resolution of the order of tens of picoseconds, in environments where particle fluence is expected to be very high, exceeding 1E16 n$_{eq}$/cm$^2$.
An innovative design of silicon sensors able to withstand very high fluences while keeping excellent...

26. Status of FastIC developments

David Gascon (University of Barcelona (ES))

30/05/2023, 10:00

27. The need and context for a new fast wave-form ASIC

Jinseo Park (The University of Chicago)

30/05/2023, 11:00

48. Sub 100 ps Readout Electronics for Photomultiplier based Multi-Channel Detectors

David Arutinov (Physics Institute of Bonn University), Mr David Arutinov (Forschungszentrum Jülich), Mr David Arutinov (Forschungszentrum Jülich)

30/05/2023, 11:30

29. discussion

30/05/2023, 12:00

31. Status of developments on and around SAMPIC

Mrs Jihane Maalmi, Mrs Jihane Maalmi (Université Paris-Saclay (FR))

30/05/2023, 15:30

30. Looking for the best time resolution for 4D calorimetry at LHCb

Dominique Robert Breton (Université Paris-Saclay (FR))

30/05/2023, 15:55

10. Picosec Micromegas detector for precise muon timing in the Muon Collider detector

Davide Fiorina (INFN Pavia)

30/05/2023, 16:25

Picosec is a novel micropattern gaseous detector (MPGD) proposed by the RD51 Picosec MicroMegas collaboration to overcome the limitations of classical MPGDs regarding timing performance. The concept is based on detecting Cherenkov light emitted by an impinging particle in a proper radiator. A photocathode converts such light into electrons, and a double amplification stage MicroMegas detector...

32. Picosecond timing and searches for BSM long-lived particles

Aldo Penzo (infn), Aldo Penzo (University of Iowa (US))

30/05/2023, 17:20

33. Recent results on 3D diamond pixel detectors for 4D-tracking

Lucio Anderlini (Universita e INFN, Firenze (IT))

30/05/2023, 17:45

47. Using deep neural networks to improve the precision of fast-sampled particle timing detectors

Mateusz Kocot (AGH University of Science and Technology (PL))

30/05/2023, 18:10

Measurements from particle timing detectors are often affected by the time walk effect caused by statistical fluctuations in the charge of passing particles. The Constant Fraction Discriminator (CFD) is frequently used to mitigate this effect both in test setups and in running experiments, such as the CMS-PPS system at the CERN’s LHC. CFD is simple and effective but does not leverage all...

53. Exploration of fast materials and light production mechanisms for high energy charged particles time detectors

Roberto Cala' (CERN & Universita & INFN, Milano-Bicocca (IT))

30/05/2023, 18:30

Precise timing evaluation is expected to play a crucial role in particle detectors at future collider experiments, as its knowledge can improve vertices reconstruction by mitigating the pile-up effects in the harsh radiation environment expected there. A single-detector time resolution of 20 - 30 ps $\sigma$ was estimated to be needed for precise events reconstruction. In order to fulfil this...

34. Discussion

30/05/2023, 18:55

59. Status and perspective of the CMS Precision Proton Spectrometer timing system

Edoardo Bossini (INFN Pisa (IT))

31/05/2023, 09:00

The CMS Proton Precision Spectrometer (PPS), operating at the LHC, measures the kinematics of protons scattered in the very forward region with 3D silicon tracking stations. To reconstruct the longitudinal position of the proton interaction vertex and to suppress pile-up background, a timing detector based on planar single crystal CVD diamond has been developed, with a dedicated amplification...

60. Scintillating sampling ECAL technology for the LHCb PicoCal

Etiennette Auffray Hillemanns (CERN), Philipp Roloff (CERN)

31/05/2023, 09:30

The aim of the LHCb Upgrade II is to operate at a luminosity of 1.5 x 10$^{34}$ cm$^{-2}$ s$^{-1}$ to collect a data set of 300 fb$^{-1}$. The required substantial modifications of the current LHCb electromagnetic calorimeter due to high radiation doses in the central region and increased particle densities are referred to as PicoCal. A consolidation of the ECAL already during LS3 will reduce...

6. TORCH: a fast timing detector for LHCb

Roger Forty (CERN)

31/05/2023, 10:00

TORCH (Time Of internally Reflected Cherenkov light) is a large-area time-of-flight detector, designed to enhance the particle identification performance of LHCb in the momentum range 2-15 GeV/$c$. It forms part of the foreseen upgrade of the LHCb experiment, for installation in the next decade, to profit from the high-luminosity phase of the LHC. Cherenkov photons produced by charged tracks...

8. 2D pixelated LAPPDs for RICH Detectors with a high resolution timing capability

Dr Alexander Kiselev (BNL)

31/05/2023, 11:00

Large Area Picosecond Photodetectors (LAPPDs) are micro-channel based photosensors featuring hundreds of square centimeters of sensitive area in a single package and timing resolution on the order of 50 ps for a single photon detection. However, until recently LAPPDs did not exist in finely pixelated 2D readout configurations that in addition to the high-resolution timing would also provide...

37. The Endcap Timing Layer detector for the CMS Phase-2 upgrade

Lazar Markovic (Universita e INFN Torino (IT))

31/05/2023, 11:30

38. Latest feasibility studies of LAPPD as a timing layer for the LHCb Upgrade-2 ECAL

Daniele Manuzzi (Universita e INFN, Bologna (IT))

31/05/2023, 12:00

39. Discussion

31/05/2023, 12:30

4. Towards a second generation of metascintillators with nanophotonics and AI

Paul Rene Michel Lecoq (CERN)

31/05/2023, 15:30

Scintillator detectors are the gold standard for radiation detection in industry, security and medical imaging. After decades of steady progress, the performance of ionizing radiation detectors is reaching a limit imposed by physical barriers at the level of the scintillation mechanisms. Present X-ray and γ-ray detector technologies are based on monolithic sensors (scintillating crystals or...

41. Picosecond timing at the AIC-144 hadrontherapy cyclotron

Ronan Mcnulty (University College Dublin (IE))

31/05/2023, 16:00

42. Machine Learning for Analysis of Fast Particle Detector Data for Proton Therapy Application

Krzysztof Misan (AGH University of Science and Technology (PL))

31/05/2023, 16:30

43. Space and medical applications

Christophe Royon (The University of Kansas (US))

31/05/2023, 17:20

57. Applications of FAST detectors in Positron Emission Tomography

Luca Presotto (University of Milano Bicocca)

31/05/2023, 17:50

Excellent timing resolution ($<20\,ps$) solves the need for tomographic reconstruction when working with true coincidences in Positron Emission Tomography (PET). However, the impact of events where at least one photon undergoes Compton scattering increases, especially if very fast detector compromise energy resolution. In a human adult abdomen, $511\;keV$ photons travel up to 5 mean free paths...

7. Timing studies of 65 nm CMOS monolithic silicon pixel structure for the ALICE tracker upgrade

Roberto Russo (Nikhef National institute for subatomic physics (NL))

31/05/2023, 18:15

The CERN Experimental Physics Department R&D develops monolithic sensors for high energy physics and is currently investigating sub-100 nm CMOS imaging processes. In collaboration with the ALICE Inner Tracking System (ITS3) upgrade project, a Tower Partner Semiconductor Co. 65 nm ISC process is studied for the next generation sensors.
In view of the LHC Run 4, the innermost three of the seven...

12. Performance studies of Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector

Lucia Castillo Garcia (IFAE - Barcelona (ES)), Yunyun Fan (Chinese Academy of Sciences (CN))

31/05/2023, 18:40

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...

50. Status and perspective of the Barrel Timing Layer project for the Phase II upgrade of the CMS detector

Flavia Cetorelli (INFN, Milano-Bicocca (IT))

31/05/2023, 19:05

An upgrade of the CMS detector is essential to maintain its current performance in event reconstruction during the High Luminosity phase of LHC (HL-LHC or Phase II), which will be characterized by about 200 interactions per bunch crossing (pileup). The upgrade project includes the new MIP Timing Detector (MTD) to deal with the increased pileup level. The MTD will achieve a time resolution of...

44. Discussion

31/05/2023, 19:30

45. Informal discussions

01/06/2023, 10:00

46. Workshop conclusion

Angelo SCRIBANO, Christophe Royon (The University of Kansas (US))

01/06/2023, 12:00

1. Experiences with picosecond level timing in large systems

Dr Stefan Ritt (Paul Scherrer Institut (Switzerland))

The MEG II experiment searches for rare muon decays at PSI, Switzerland. One of the challenges of this experiment is to measure timing of calorimeter and timing counters with a precision down to a few pico seconds. This is accomplished by using the DRS4 Switched Capacitor Array and a high precision timing system using a custom crate standard synchronizing more than 30 crates with over 9000...

23. High-injection carrier dynamics generated by fs-laser in segmented LGAD and enhanced charge multiplication observed in "no-gain" region under certain conditions

Gordana Lastovicka Medin (University of Montenegro (ME))

18. Latest feasibility studies of LAPPD as a timing layer for the LHCb Upgrade-2 ECAL

Stefano Perazzini (Universita e INFN, Bologna (IT))

52. Latest feasibility studies of LAPPD as a timing layer for the LHCb Upgrade-2 ECAL

Daniele Manuzzi (Universita e INFN, Bologna (IT))

The target of the Upgrade-2 of the LHCb experiment is operating with an instantaneous luminosity a factor seven higher than the current one to reach ultimate precision in several domains of its physics program. This objective challenges the development of subdetectors able to cope with the high-occupancy regime foreseen.
The time-of-arrival of the particles at the various subdetectors is a...

11. Picosecond-precision superconducting detectors and new developments in readout ASIC technology

Si Xie (Fermilab & Caltech)

Superconducting nanowire detectors, widely used for precision single photon detection, are being developed to enable ultra low-threshold detection of axions, dark photons, and dark matter. Due to their intrinsic signal formation process, they exhibit extremely fast signals and naturally have picosecond time precision. We will discuss the state-of-the-art timing performance of superconducting...

35. PPS timing detector

Edoardo Bossini (INFN Pisa (IT))

13. Recent results on 3D diamond pixel detectors for 4D-tracking

Lucio Anderlini (Universita e INFN, Firenze (IT))

The unprecedented density of charged particles foreseen at the next generation of experiments at future hadronic machines poses a significant challenge to the tracking detectors, that are expected to stand extreme levels of radiation as well as to be able to efficiently reconstruct a huge number of tracks and primary vertices. To meet this challenge new extremely radiation hard materials and...

19. Solid state pixels and electronics with 1-10 picosecond resolution: challenges, developments and applications to photodetection techniques

Adriano Lai (Universita e INFN, Cagliari (IT))

28. tba

Nicola Neri (Università degli Studi e INFN Milano (IT))

54. TCAD simulations of DC-RSD LGAD devices

Alessandro Fondacci (INFN Perugia (IT))

Future HEP experiments will consider measuring concurrently the location and the time of a particle hit with very good accuracy, i.e., 4D-trackers should be the basic option for future detection systems. DC-coupled Resistive Silicon Detectors (DC-RSD), an evolution of the AC-coupled design, are considered a very promising option within this framework. They combine two different design...

36. The ATLAS Forward Proton Time-of-Flight detector, its performance in Run3 and its future development

Tomas Sykora (Charles University (CZ))

55. The Endcap Timing Layer detector for the CMS Phase-2 upgrade

Lazar Markovic (Universita e INFN Torino (IT))

For the Phase 2 upgrade, the CMS experiment foresees the installation of a MIP Timing Detector (MTD) to assign a precise timestamp to every charged particle up to pseudorapidity |eta| = 3. The target timing resolution of MTD, 40 ps per track, will help to mitigate effects from the challenging pile-up conditions expected at the High-Luminosity LHC and empower the CMS detector with unique and...

56. The LHCb VELO Upgrade II: design and development of the readout electronics

Stefano De Capua (University of Manchester (GB))

The LHCb Upgrade-I detector is currently operating at the Large Hadron Collider at CERN and it is expected to collect about 50 fb$^{−1}$ by the end of Run 4 (2032), when many sub-systems of the detector will reach their end of lifetime. The LHCb collaboration proposes a Phase-II Upgrade of the detector, such that the High-Luminosity LHC potential in flavour physics can be fully exploited. The...