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WORKSHOP ON PICO-SECOND TIMING DETECTORS FOR PHYSICS

9–11 Sept 2021
University of Zurich
Europe/Zurich timezone

Contribution List

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  1. 78. Welcome
    Christophe Royon (The University of Kansas (US)), Christopher Betancourt (Universitaet Zuerich (CH))
    09/09/2021, 09:00
  2. 71. Characterization of Novel Trench-Isolated LGADs for 4D tracking
    Ashish Bisht (Fondazione Bruno Kessler)
    09/09/2021, 09:10
  3. 72. A comparative study of LGAD radiation damage mechanisms
    Vagelis Gkougkousis (CERN)
    09/09/2021, 09:35
  4. 73. Systematic study of heavily irradiated LGAD stability using the Fermilab Test Beam Facility
    Valentina Sola (Universita e INFN Torino (IT))
    09/09/2021, 10:00
  5. 74. The CMS MTD Endcap Timing Layer: Precision Timing with Low Gain Avalanche Detectors
    Marco Ferrero (Universita e INFN Torino (IT))
    09/09/2021, 10:45
  6. 75. Precision Timing with the CMS Barrel MIP Timing Detector
    Adi Bornheim (California Institute of Technology (US)), Adolf Bornheim (California Institute of Technology (US)), Adolf Bornheim (Charles C. Lauritsen Laboratory of High Energy Physics)
    09/09/2021, 11:10
  7. 76. Scintillating sampling technologies with precision timing capabilities for the Upgrade II electromagnetic calorimeter of LHCb
    Loris Martinazzoli (Universita & INFN, Milano-Bicocca (IT)), Philipp Roloff (DESY), Philipp Roloff (Deutsches Elektronen-Synchrotron (DESY)), Philipp Roloff (CERN)
    09/09/2021, 11:35
  8. 28. Fabrication and first full characterisation of timing properties of 3D diamond detectors
    Giovanni Passaleva (INFN Florence (IT))
    09/09/2021, 13:30
  9. 29. Time resolution of an irradiated 3D silicon pixel detector
    Dario De Simone (Universitaet Zuerich (CH))
    09/09/2021, 13:55
  10. 30. Fast timing with Cherenkov photons and analog SiPMs
    Nicolaus Kratochwil (CERN)
    09/09/2021, 14:20
  11. 35. Recent results on fast 3D-trench silicon sensors and related electronics
    Adriano Lai (Universita e INFN, Cagliari (IT))
    09/09/2021, 14:45
  12. 32. 6 µm pore microchannel plates in a square photomultiplier tube and the integration of TOFPET2 electronics
    James Milnes (Photek Ltd)
    09/09/2021, 15:30
  13. 33. Performance of the FASTPIX sub-nanosecond CMOS pixel sensor demonstrator
    Eric Buschmann (CERN)
    09/09/2021, 15:55
  14. 34. Overview of CNM LGAD results with B, Ga and C diffused Si-on-Si and epitaxial wafers
    Lucia Castillo Garcia (IFAE - Barcelona (ES))
    09/09/2021, 16:20
  15. 40. Development of AC-LGADs for high-rate Particle Detection
    Hartmut Sadrozinski (University of California,Santa Cruz (US)), Hartmut Sadrozinski (SCIPP, UC santa Cruz)
    09/09/2021, 16:45
  16. 36. Discussion session
    09/09/2021, 17:10
  17. 37. Picosecond timing resolution with scintillators
    Paul Rene Michel Lecoq
    10/09/2021, 09:00
  18. 38. Performance measurements of the Large Area Picosecond PhotoDetector (LAPPD) as a timing layer for the LHCb UpgradeII electromagnetic calorimeter
    Stefano Perazzini (Universita e INFN, Bologna (IT))
    10/09/2021, 09:25
  19. 39. SoLID and ATHENA TOF systems
    Alexandre Camsonne (Jefferson Laboratory)
    10/09/2021, 09:50
  20. 31. TPA setup for temporal characterisation of silicon detectors
    Robbert Erik Geertsema (Nikhef National institute for subatomic physics (NL))
    10/09/2021, 10:15
  21. 41. Recent advancements in UFSD performances
    Nicolo Cartiglia (INFN Torino (IT))
    10/09/2021, 11:10
  22. 69. Tracking and Vertexing in 4D
    Daniel Johnson (Massachusetts Inst. of Technology (US))
    10/09/2021, 11:35
  23. 42. Discussion
    10/09/2021, 12:00
  24. 43. An LGAD-based full active target for the PiENuX experiment
    Simone Michele Mazza (University of California,Santa Cruz (US))
    10/09/2021, 14:00
  25. 44. Quartz Cherenkov Timing Detectors Revisited
    Aldo Penzo (infn), Aldo Penzo (University of Iowa (US))
    10/09/2021, 14:25
  26. 70. Single event effect study on LGAD: Present status and future prospects of femtosecond laser studies at ELI
    Gordana Lastovicka Medin (University of Montenegro (ME)), Gordana Lastovicka Medin (University of Montenegro (ME))
    10/09/2021, 14:50
  27. 45. Status of development of SAMPIC chips and modules.
    Dominique Robert Breton (Université Paris-Saclay (FR))
    10/09/2021, 15:15
  28. 46. picoTDC: A 3ps bin bize 64 channel TDC for HEP experiments
    Samuele Altruda, Samuele Altruda (Ministere des affaires etrangeres et europeennes (FR))
    10/09/2021, 15:40
  29. 47. Front-end integrated circuit to read out the thin UFSD achieving ps time resolution and its future developments
    Alejandro David Martinez Rojas (INFN - National Institute for Nuclear Physics)
    10/09/2021, 16:35
  30. 48. Timing performance of the Timepix3 and Timepix4 pixel ASICs
    Kevin Heijhoff (Nikhef National institute for subatomic physics (NL))
    10/09/2021, 17:00
  31. 49. MCP-PMT development
    Serge Duarte Pinto (Photonis)
    10/09/2021, 17:25
  32. 50. Discussion session
    10/09/2021, 17:50
  33. 51. Ultimate resolution of ToF-PET detectors – open questions and ways forward
    Krzysztof Piotrzkowski (Universite Catholique de Louvain (UCL) (BE)), Krzysztof Piotrzkowski (Universite Catholique de Louvain (UCL) (BE))
    11/09/2021, 09:00
  34. 52. Ultra Fast timing detectors with applications in cosmic ray physics, medical science and other domains
    Christophe Royon (The University of Kansas (US))
    11/09/2021, 09:25
  35. 53. Performance of a low gain avalanche detector in a medical linac and characterisation of the beam profile
    Ronan Mcnulty (University College Dublin (IE))
    11/09/2021, 09:50
  36. 54. AGILE: Development of a compact, low power, low cost and on-board detector for ion identification and energy measurement
    florian Gautier
    11/09/2021, 10:15
  37. 55. The ATLAS Forward Proton Time-of-Flight detector: results, experiences and plans
    Tomas Sykora (Charles University (CZ))
    11/09/2021, 11:10
  38. 56. Development of SiPM based fast time of flight for the AMS-100 in space
    Chan Hoon Chung (Rheinisch Westfaelische Tech. Hoch. (DE))
    11/09/2021, 11:35
  39. 68. Status of the TORCH time-of-flight detector
    Neville Harnew (University of Oxford (GB)), Neville Harnew (University of Oxford (GB))
    11/09/2021, 12:00
  40. 57. Discussion session
    11/09/2021, 12:25
  41. 58. Workshop Conclusion
    Christophe Royon (The University of Kansas (US)), Christopher Betancourt (Universitaet Zuerich (CH))
    11/09/2021, 12:55
  42. 21. 6 µm pore microchannel plates in a square photomultiplier tube and the integration of TOFPET2 electronics
    James Milnes (Photek Ltd)

    We present the recently developed 2-inch square multi-anode PMT using 6 μm pore microchannel plates with results on single photon timing accuracy, gain, uniformity, magnetic field susceptibility, and count rate capability. We also discuss the development combining multi-anode PMTs with the TOFPET2 front-end ASIC; demonstrators of a 256 channel demo system with < 100 ps single photon timing are...

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  43. 59. A comparative study of LGAD radiation damage mechanisms
    Dr Vagelis Gkougkousis (CERN)

    Aiming to a sub 30 psec time resolution at fluences in excess of $6×10^{15}$ 1 MeV $n_{eq}/cm^{2}$, several dopants are explored to improve radiation tolerance of intrinsic gain sensors. Using a common mask, CNM produced LGADs with boron, boron + carbon and gallium implanted gain layers are subjected to neutron and proton irradiation ranging from $10^{14}$ to $6×10^{15}$ 1 MeV $n_{eq}/cm^{2}$...

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  44. 13. AGILE: Development of a compact, low power, low cost and on-board detector for ion identification and energy measurement.
    florian Gautier

    AGILE (Advanced enerGetic Ion eLectron tEle- scope) instrument is being developed at KU and NASA Goddard Space Flight Center to be launched on board a CubeSat in 2022. AGILE instrument aims at identifying a large variety of ions (H-Fe) in a wide energy range (1-100 MeV/nucl) in real-time using fast silicon detectors, and fast read-out electronics. This can be achieved by the first use of...

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  45. 23. An LGAD-based full active target for the PiENuX experiment
    Dr Simone Michele Mazza (University of California,Santa Cruz (US))

    PIENUX is a next-generation experiment to measure the charged-pion branching ratios to electrons vs muons, Re/μ and pion beta decay (Pib) π+→π0eν. Re/μ provides the best test of e-µ universality and is extremely sensitive to new physics at high mass scales; Pib could provide a clean high precision value for Vud. Order of magnitude improvements in precision to these reactions will probe lepton...

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  46. 60. Characterization of Novel Trench-Isolated LGADs for 4D tracking
    Ashish Bisht (University of Trento, Fondazione Bruno Kessler)

    Silicon detectors are crucial for charged particle trajectory measurements with high precision. They provide high spatial granularity using pixels, strips and are ubiquitous in High Energy Physics (HEP) experiments. In recent years, Low Gain Avalanche Detectors (LGADs) have shown the capability of timing measurements in the tens of ps range, giving a possibility to make ultra-fast silicon...

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  47. 12. Development of AC-LGADs for high-rate Particle Detection
    Hartmut Sadrozinski (University of California,Santa Cruz (US))

    We present here an evaluation of the high-rate suitability of AC-LGADs (also named Resistive Silicon Detectors RSD) that can be made with great segmentation for the charge collection while maintaining a 100% fill factor. This is achieved by employing un-segmented (p-type) gain layer and (n-type) N-layer, and a di-electric layer separating the metal readout pads. The design allows great...

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  48. 9. Development of SiPM based fast time of flight for the AMS-100 in space
    Chan Hoon Chung (Rheinisch Westfaelische Tech. Hoch. (DE))

    AMS-100 is one of the next generation high energy cosmic-ray experiment in space as a successor of AMS-02 and has a potential of improving the sensitivity by a factor of 1000 for the cosmic antimatter particles [AMS-100][1].
    It is designed as a magnetic spectrometer with a large geometrical acceptance of 100m2 sr and to be operated for ten years at Sun-Earth Lagrange Point 2.
    It consists of...

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  49. 77. Discussion
  50. 22. Fabrication and first full characterisation of timing properties of 3D diamond detectors
    Lucio Anderlini (Universita e INFN, Firenze (IT))

    Very high luminosity experiments at future accelerators will need a new generation of vertex detectors able to stand exceptionally high levels of radiation and to provide precise spatial and time reconstruction of tracks. Diamond sensors may provide a promising radiation hard solution to these challenges posed by future hadron machines.
    A 3D geometry with thin columnar resistive electrodes...

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  51. 17. Fast timing with Cherenkov photons and analog SiPMs
    Nicolaus Kratochwil (CERN)

    Time of flight positron emission tomography can strongly benefit from a very accurate time estimator, eg. due to prompt Cherenkov emission produced upon 511 keV gamma interaction in heavy inorganic scintillators. Recently it was demonstrated that coincidence time resolution (CTR) values as good as 200 ps FWHM are possible for 20 mm long BGO crystals when selecting on events with high Cherenkov...

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  52. 14. Front-end integrated circuit to read out the thin UFSD achieving ps time resolution and its future developments
    Alejandro David Martinez Rojas (INFN - National Institute for Nuclear Physics)

    We present the experimental results obtained with the FAST2 ASIC. It is a picosecond resolution front-end electronics to read out Ultra-Fast Silicon detectors (UFSD). It has been optimized to achieve a combined time resolution below 45 ps. The ASIC implements the standard 110 nm CMOS technology and 20 readout channels. The ASIC power rail is at +1.2 V, achieving a power consumption of 2.4...

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  53. 8. Overview of CNM LGAD results with B, Ga and C diffused Si-on-Si and epitaxial wafers
    Chiara Grieco (Istitut de Fisica d'Altes Energies (IFAE) - Barcelona (ES))

    Low Gain Avalanche Detectors (LGADs) are n-on-p silicon sensors with an extra doped p-layer below the n-p junction which provides signal amplification. When the primary electrons reach the amplification region new electron-hole pairs are created that drift towards the p+ region increasing the generated signal. The moderate gain of these sensors, together with the relatively thin active region,...

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  54. 6. Overview oOverview of CNM LGAD results with B, Ga and C diffused Si-on-Si and epitaxial wafers
    Chiara Grieco (Istitut de Fisica d'Altes Energies (IFAE) - Barcelona (ES))

    Low Gain Avalanche Detectors (LGADs) are n-on-p silicon sensors with an extra doped p-layer below the n-p junction which provides signal amplification. When the primary electrons reach the amplification region new electron-hole pairs are created that drift towards the p+ region increasing the generated signal. The moderate gain of these sensors, together with the relatively thin active region,...

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  55. 10. Performance measurements of the Large Area Picosecond PhotoDetector (LAPPD) as a timing layer for the LHCb UpgradeII electromagnetic calorimeter
    Stefano Perazzini (Universita e INFN, Bologna (IT))

    The increase in instantaneous luminosity during the high-lumi phase of the LHC represents a significant challenge for future detectors. In order to cope with high-pileup conditions, a promising strategy is to add a fourth dimension to the measurements of the hits, by exploiting the time separation of the various proton-proton primary collisions. Such a strategy requires to achieve time...

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  56. 7. Performance of a low gain avalanche detector in a medical linac and characterisation of the beam profile
    Ronan Mcnulty (University College Dublin (IE))

    Low gain avalanche detectors can measure charged particle fluences with high speed and spatial precision, and are a promising technology for radiation monitoring and dosimetry. A detector has been tested in a medical linac where single particles were observed with a time resolution of 50 ps. The integrated response is similar to a standard ionising chamber but with a spatial precision twenty...

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  57. 24. Performance of the FASTPIX sub-nanosecond CMOS pixel sensor demonstrator
    Eric Buschmann (CERN)

    Within the ATTRACT FASTpix project, a monolithic pixel sensor demonstrator chip has been developed in a modified 180 nm imaging CMOS process technology, targeting sub-nanosecond timing measurements for single ionising particles. It features a small collection-electrode design on a 30 micron deep epitaxial layer and contains 32 mini matrices of 68 hexagonal pixels each, 4 transmitting an analog...

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  58. 4. Picosecond timing resolution with scintillators
    Prof. Paul LECOQ

    The future generation of radiation detectors is more and more demanding on timing performance for a wide range of applications, such as particle identification in nuclear physics and high energy physics detectors, high resolution hadronic calorimetry in finely segmented detectors, precise event time tagging in high luminosity accelerators, time of flight (TOF) techniques for PET cameras and a...

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  59. 3. PicoTDC: 64channel TDC with ps resolution
    Jorgen Christiansen (CERN)

    The PicoTDC is a 64channel TDC ASIC with 12 and 3 ps time binning implemented in a 65nm CMOS technology. It is available in its final production version that have been extensively characterized to have an effective RMS resolution better than 3ps across all channels. ~1ps rms time resolution has been demonstrated when tuned for a specific channel. Hit digitization is done at 1.28GHz with a 4...

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  60. 2. picoTDC: A 3ps bin bize 64 channel TDC for HEP experiments
    Samuele Altruda (Ministere des affaires etrangeres et europeennes (FR))

    We present the ASIC development and test results of the picoTDC, a 64 channel time tagging Time-to-Digital Converter (TDC) with 3ps bin size. The ASIC runs from a single 40MHz reference clock, can be configured very flexible. Reference clock is fed to a PLL generating an internal 1.28GHz, then split into 256 phases through a 64 element DLL and a resistive interpolation resulting in the 3.05ps...

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  61. 63. Precision Timing with the CMS Barrel MIP Timing Detector
    Adi Bornheim (California Institute of Technology (US))

    The MIP Timing Detector (MTD) is a new sub-detector planned for the Compact Muon Solenoid (CMS) experiment at CERN, aimed at maintaining the excellent particle identification and reconstruction efficiency of the CMS detector during the High Luminosity LHC (HL-LHC) era. The MTD will provide new and unique capabilities to CMS by measuring the time-of-arrival of minimum ionizing particles with a...

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  62. 25. Quartz Cherenkov Timing Detectors Revisited
    Aldo Penzo (University of Iowa (US))

    In the selective category of timing detectors with few picoseconds precision, quartz (fused silica) Cherenkov radiators associated with fast photodetectors, hold a well-established position.
    Such detectors satisfy criteria for timing measurements at picosecond level, such as an instantaneous production of almost isochronous photons, relatively small geometrical dimensions, giving time spread...

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  63. 20. Recent results on fast 3D-trench silicon sensors and related electronics
    Adriano Lai (Universita e INFN, Cagliari (IT))

    In the last three years the TimeSPOT Collaboration has developed innovative silicon pixels allowing to reach a time resolution better than 20~ps on minimum ionizing particles. Such new devices are 3D silicon pixels with trench-shaped electrodes. They achieve such an outstanding time resolution thanks to both a highly uniform electric field inside the pixel and electrons and holes drift...

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  64. 26. Recents advancements in UFSD performances
    Nicolo Cartiglia (INFN Torino (IT))

    This presentation focuses on 2 aspects of UFSD performances: the improved temporal resolution obtained with thinner sensors and the higher radiation resistance of sensors with deep gain implants.
    Using sensors produced by FBK, the temporal resolution of sensors with an active thickness of 25, 35, 45, and 55 microns will be shown and the radiation hardness of gain implants position at 0.5 -...

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  65. 64. Scintillating sampling technologies with precision timing capabilities for the Upgrade II electromagnetic calorimeter of LHCb
    Philipp Roloff (CERN)

    The aim of the LHCb Upgrade II is to operate at a luminosity in the range of 1 to 2 x 10$^{34}$ cm$^{-2}$ s$^{-1}$ to collect a data set of 300 fb$^{-1}$. This will require a substantial modification of the current LHCb ECAL due to high radiation doses in the central region and increased particle densities. Timing capabilities with O(10) ps precision for neutral electromagnetic particles and...

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  66. 66. Single event effect study on LGAD: Present status and future prospects of femtosecond laser studies at ELI
    Gordana Lastovicka Medin (University of Montenegro (ME))

    Currently, a majority of the research has been focused on LGAD stability and irreversible breakdown. Single event effect has been extensively researched in femtosecond laser studies at ELI Beamlines. In this presentation we will mainly focus on future activities aiming to aid us in bettering our understanding of the underlying mechanism causing the destruction. An overview of the present...

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  67. 11. SoLID and ATHENA TOF systems
    Dr Alexandre Camsonne (Jefferson Laboratory)

    I will present the detectors systems, requirements and expected performance of the SOLID and ATHENA detectors time of flight systems.

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  68. 65. Status of the TORCH time-of-flight detector
    Neville Harnew (University of Oxford (GB))

    The TORCH time-of-flight detector is designed to provide a 15 ps timing resolution for charged particles, resulting in pi/K particle identification up to 10 GeV/c momentum over a 10 m flight path. Cherenkov photons, produced in a quartz plate of 10 mm thickness, are focused onto an array of micro-channel plate photomultipliers (MCP-PMTs) which measure the photon arrival times and spatial...

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  69. 61. Systematic study of heavily irradiated LGAD stability using the Fermilab Test Beam Facility
    Valentina Sola (Universita e INFN Torino (IT))

    LGAD sensors will be employed in the ATLAS High-Granularity Timing Detector and the CMS MIP Timing Detector upgrades to mitigate the high levels of pileup expected in the High-Luminosity phase of the LHC. Over the last several years, much attention has focused on designing radiation-tolerant gain implants to ensure these sensors survive the fluences expected, in excess of 1–2E15...

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  70. 5. The ATLAS Forward Proton Time-of-Flight detector: results, experiences and plans
    Lydia Audrey Beresford (CERN)

    The Time-of-Flight (ToF) detectors of the ATLAS Forward Proton (AFP) system are designed to measure the primary vertex z-position of the pp -> pXp processes by comparing the arrival times measured in the ToF of the two intact protons in the final state. We present the results obtained from a performance study of the AFP ToF detector operation in 2017 and discuss plans for LHC Run 3 as well as...

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  71. 62. The CMS MTD Endcap Timing Layer: Precision Timing with Low Gain Avalanche Detectors
    Marco Ferrero (Universita e INFN Torino (IT))

    The MIP Timing Detector (MTD) of the Compact Muon Solenoid (CMS) will provide precision timestamps with 40 ps resolution for all charged particles up to a pseudo-rapidity of |η|=3. This upgrade will mitigate the effects of pile-up expected under the High-Luminosity LHC running conditions and bring new and unique capabilities to the CMS detector. The endcap region of the MTD, called the Endcap...

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  72. 16. Time resolution of an irradiated 3D silicon pixel detector
    Dario De Simone (Universitaet Zuerich (CH))

    We report on the measurements of time resolution for double-sided 3D pixel sensors with a single cell of 50 µm × 50 µm and thickness of 285 µm, fabricated at IMB-CNM and irradiated with reactorn neutrons to different radiation doses up to 1e16 MeV neq/cm2.

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  73. 15. Timing performance of the Timepix3 and Timepix4 pixel ASICs
    Kevin Heijhoff (Nikhef National institute for subatomic physics (NL))

    Precise timing will be an important part of future detector upgrades in order to prepare particle physics experiments for the High-Luminosity LHC. The higher luminosity, which is essential to observe rare phenomena, is obtained through higher pile-up rates making it more difficult to distinguish between collisions. Precise time measurements will help tracking algorithms separate spatially...

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  74. 19. TPA setup for temporal characterisation of silicon detectors
    Robbert Erik Geertsema (Nikhef National institute for subatomic physics (NL))

    Historically, transient current measurements mainly used single-photon absorption (SPA). In contrast, two-photon absorption (TPA) is limited to a small voxel and allows for three-dimensional imaging of the detector volume. TPA requires strong focusing optics to achieve beam waists of the order of micrometers. This small voxel enables the characterisation of the detector volume in detail. Using...

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  75. 67. Tracking and Vertexing in 4D
    Kazuyoshi Carvalho Akiba (Nikhef)

    LHCb has recently submitted a physics case to upgrade the detector to be able to run at instantaneous luminosities of 2$\times 10^{34} cm^{-2}s^{-1}$, an order of magnitude above Upgrade I, and accumulate a sample of more than 300 fb$^{-1}$. At this intensity, the mean number of interactions per crossing would be 56, producing around 2500 charged particles within the LHCb acceptance. The...

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  76. 1. Ultimate resolution of ToF-PET detectors – open questions and ways forward
    Krzysztof Piotrzkowski

    An overview will be given of the recent progress towards achieving an ultimate 10 ps CRT resolution for the ToF-PET detectors. Emphasis will be put on understanding of the obtained results, and on the status of advanced Monte Carlo simulations in this filed. The open issues will be discussed in this context and ways of attacking this challenge will be proposed for discussion.

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  77. 18. Ultra Fast timing detectors with applications in cosmic ray physics, medical science and other domains
    Christophe Royon (The University of Kansas (US))

    In this talk, we will describe the use of fast Silicon detectors and the fast sampling method in high energy physics and applications in medicine and cosmic ray physics.

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  78. 27. Welcome
    Christopher Betancourt (Universitaet Zuerich (CH))