Carla Aramo
(NA)
5/25/15, 4:00โฏPM
S2 - Photon Detector and PID
Poster
Negative differential resistance (NDR), the current is a decreasing function of the voltage, has been observed in the current-voltage curves of several types of structures. We measured tunnelling current and NDR by illuminating large area heterojunction obtained by growing Multi Wall Carbon Nanotubes on the surface of n-doped Silicon substrate. In the absence of light, the current flow is null...
Dr
Patrick Achenbach
(Nuclear Physics Institute, Mainz University)
5/25/15, 4:01โฏPM
S2 - Photon Detector and PID
Poster
Silicon PhotoMultipliers (SiPMs) are being considered as possible photodetectors operating at low temperatures for direct dark matter searches, neutrino detectors, telescopes in space, or at high energy beams.
When operating SiPMs or other solid-state devices for photon detection at liquid helium temperature, i.e. 4 kelvin, not only the electronic properties of Si can change, such as charge...
Mr
Mikhail Barnyakov
(Budker Institute of Nuclear Physics)
5/25/15, 4:02โฏPM
S2 - Photon Detector and PID
Poster
The Philips Digital Photon Counter (DPC) is considered as a possible photon sensor in RICH detector for Forward spectrometer of PANDA experiment at FAIR. Known issue of Geiger-mode APD is its radiation ageing. Two DPC tiles were tested using 800 MeV/c protons. Increase of dark counting rate with proton fluence up to 4*10^11 cm^-2 has been measured as well as a probability of single event...
Mr
Mateusz Baszczyk
(AGH University of Science and Technology)
5/25/15, 4:03โฏPM
S2 - Photon Detector and PID
Poster
Proposed algorithm compensates the gain by changing the bias voltage of Silicon Photomultipliers (SiPM). The signal from SiPM is amplified in fully differential preamplifier then is formed in time by the fully differential fast shaper. The compensation method was tested with four channels common cathode multi-pixel photon counter from Hamamatsu. The measurement system requires only one high...
Mr
Edoardo Bossini
(university of Siena-INFN Pisa)
5/25/15, 4:04โฏPM
S2 - Photon Detector and PID
Poster
We describe the results and status of our R\&D on timing detectors for the TOTEM Collaboration. Physics program of the TOTEM experiment will require precise time of flight detectors with a resolution better than $50~ps$, to be installed in the TOTEM Vertical Roman Pots (RPs).
To achieve such result we exploited ultra pure sCVD diamond technology, which provides fast, low noise and radiation...
Dr
Karen Byrum
(Argonne National Laboratory)
5/25/15, 4:05โฏPM
S2 - Photon Detector and PID
Poster
Microchannel plate (MCP) based photodetectors feature fast timing, good position resolution and a compact form factor. We report detailed design, fabrication and characterization of a low-cost 6 cm x 6 cm fast timing photodetector based on microchannel plates. The whole assembly is made of low cost glass materials and hermetically sealed with bialkali photocathode in vacuum. A prototype...
Riccardo De Asmundis
(NA)
5/25/15, 4:06โฏPM
S2 - Photon Detector and PID
Poster
VSiPMT (Vacuum Silicon PhotoMultiplier Tube) is an innovative design we propose for a revolutionary hybrid photon detector.
The idea is to replace the classical dynode chain of a PMT with a SiPM, which therefore acts as an electron detector and amplifier.
The aim is to match the large sensitive area of a photocathode with the performances of the SiPM technology.
The VSiPMT will have many...
Dr
Roberto Dinapoli
(Paul Scherrer Institut)
5/25/15, 4:07โฏPM
S2 - Photon Detector and PID
Poster
TMรNCH is a novel hybrid silicon pixel detector based on charge integration and analog readout featuring a challengingly small pixel size of 25x25 ฮผm2, aimed at exploring the limits of current hybrid silicon detector technology.
Two prototypes have been designed and produced in UMC 110nm technology. MOENCH02 is a fully functional prototype of 4x4mm2, containing an array of 160x160 pixels....
Dr
John R Fry
(University of Liverpool)
5/25/15, 4:08โฏPM
S2 - Photon Detector and PID
Poster
The CERN experiment NA62 is dedicated to the study of ultra-rare decays of the K+ in the pursuit of physics effects beyond the standard model (SM). The flagship decay K+ โ ฯ+ฮฝฮฝ has a branching fraction (BF) predicted by the SM to be (7.81 ยฑ 0.75 ยฑ 0.29 )ร10-11and the collaboration will identify more than 100 such decays during data-taking in 2015-17 to enable a measurement of the BF to better...
Dr
Silvia Gambett
(University of Edinburgh)
5/25/15, 4:09โฏPM
S2 - Photon Detector and PID
Poster
A key feature of the LHCb upgrade, scheduled for 2019, is to remove the first level trigger and its data reduction from 40MHz to 1MHz, which is implemented in the on-detector readout electronics. The consequence for the LHCb Ring Imaging Cherenkov (RICH) detectors is that the Hybrid Photon Detectors need to be replaced as the readout chip is inside the detector vacuum. The baseline for...
Dr
Gianpiero Gervino
(Dipartimento di Fisica and INFN Torino)
5/25/15, 4:10โฏPM
S2 - Photon Detector and PID
Poster
The need to perform gamma-ray spectroscopy measurements with HpGe detectors is a common technique in many fields as nuclear physics, radiochemistry, nuclear medicine and neutron activation analysis.
In other applications wide dynamic ranges in count rate may be encountered, for example samples taken after a nuclear accident are counted on a system normally used for environmental monitoring....
Dr
Eva Gimenez
(Diamond Light Source)
5/25/15, 4:11โฏPM
S2 - Photon Detector and PID
Poster
A multichip CdTe-Medipix3RX [1] MERLIN [2] detector system was developed in order to bring the advantages of photon-counting detectors to applications in the hard X-ray range of energies. The detector head consisted of a 2 x 2 Medipix3RX bump-bonded to a 28 mm x 28 mm monolithic pixel array electron collection Schottky ยฌcontact CdTe sensor. Schottky CdTe sensors undergo polarization, which...
Dr
Lukas Gruber
(Stefan Meyer Institute for Subatomic Physics and GSI Helmholtz Centre for Heavy Ion Research)
5/25/15, 4:12โฏPM
S2 - Photon Detector and PID
Poster
The barrel time-of-flight detector for the PANDA experiment at FAIR in Darmstadt is planned as a Scintillator Tile Hodoscope (SciTil) composed of several thousand plastic scintillator tiles, covering a total area of about 5 m^2 and readout by Silicon Photomultipliers (SiPMs). The system will be needed to identify the time origin of tracks to avoid event mixing at high collision rates with Navg...
Mr
Adriaan Heering
(University of Notre Dame (US)), Dr
Yuri Musienko
(University of Notre Dame (US))
5/25/15, 4:13โฏPM
S2 - Photon Detector and PID
Poster
During the last 5 years we have successfully completed the R&D for instrumentation of SiPMs for the CMS HCAL Phase 1 upgrade in 2018. Much focus was put on radiation damage during these years of R&D. For the HCAL we expect a maximum total dose of 1012 n/cm2 for an total lifetime integrated luminosity of 3000 fb-1. Good correlation between cell size and performance with high radiation was found...
Prof.
David Hitlin
(Caltech)
5/25/15, 4:15โฏPM
S2 - Photon Detector and PID
Poster
Barium fluoride crystals are the current choice for the
calorimeter of the Mu2e experiment at Fermilab.
By the fast (decay time 0.9 ns) 220 nm scintillation component and discriminating against the larger slow
(decay time 650ns) 300 nm component, it is possible to build a radiation-hard calorimeter with good energy and time
resolution and high rate capability. This requires a solid...
Mr
Adriaan Heering
(University of Notre Dame (US))
5/25/15, 4:16โฏPM
S2 - Photon Detector and PID
Poster
The CMS Barrel (HB) and Endcap (HE) Hadron Calorimeters are scintillator sampling calorimeters with embedded wavelength shifting fibers (WLS) in scintillator tiles. The fibers from the sampling layers are ganged together to form towers whose light is currently detected by HPDs. In 2012 the HCAL SiPM photo sensor upgrade was approved for the increased luminosity (5*1034) of SLHC. A key aspect...
Dr
Evgeniy Kravchenko
(Budker INP)
5/25/15, 4:18โฏPM
S2 - Photon Detector and PID
Poster
Particle identification power of modern developed aerogel RICH detectors strongly depends on optical quality of radiators. It was shown that wavelength dependence of aerogel tile transparency after polishing can not be described by standard Hunt formula. The Hunt formula has been modified to describe scattering in a thin layer of silica dust on the surface of aerogel tile. Several procedures...
Massimo Rossella
(PV)
5/25/15, 4:19โฏPM
S2 - Photon Detector and PID
Poster
The development of liquefied noble gas-based detectors is mandatory for experiments dedicated to study physics beyond the Standard Model. For this purpose, it is fundamental to provide a mean to detect the Vacuum Ultra Violet (VUV) scintillation light, produced after the passage of ionizing particles inside the detector sensitive volume, which is used for trigger, timing and calorimetry...
Prof.
shulin liu
(The Institute of High Energy Physics, Chinese Academy of Sciences)
5/25/15, 4:20โฏPM
S2 - Photon Detector and PID
Poster
In order to realize electron scrubbing and subsequent testing for microchannel plate (MCP) , several electron sources uniformly distributed in the plane are developed.
The first solution is that the electron gun designed into tray shaped filament structure is installed in the proper location within the shielded metal cylinder. A metal mesh is located in the electron emitting end and a...
Ms
Ilaria Sacco
(Heidelberg University)
5/25/15, 4:21โฏPM
S2 - Photon Detector and PID
Poster
We present two versions of single photon sensitive 2D camera chips containing 88 ร 88 avalanche photo diodes.
The center-of-gravity of a photon cloud can be immediately reconstructed on-chip or full image frames can be read with up to 400.000 frames per second. The sensors have imaging areas of โ 5ร5 mm2 covered by square pixels of 56.44ร56.44 ฮผm2 with a โ 55% fill factor in the latest chip...
Angela Papa
(Paul Scherrer Institut)
5/25/15, 4:22โฏPM
S2 - Photon Detector and PID
Poster
Scintillating fibers coupled to photosensors provide flexible, fast and high granularity detectors which are able to work in a high rate environment. We will report about the performances obtained with several detector prototypes (single and multi-layers) based on 250 $\rm{\mu m}$ multi clad square scintillating fibers coupled to Hamamatsu SiPMs.
Current measurements show results never...
Mr
Azar Sadigov
(National Nuclear Research Center, Baku, Azerbaijan)
5/25/15, 4:23โฏPM
S2 - Photon Detector and PID
Poster
Results of simulation based on a new iterative model of avalanche process in micropixel avalanche photodiodes with low pixel capacitance (or high pixel density) are presented. The new model describes development of the avalanche process in time, taking into account change of electric field within the depleted region and the effect of parasitic capacitance shunting individual quenching...
Prof.
Hulin Liu
(Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences)
5/25/15, 4:24โฏPM
S2 - Photon Detector and PID
Poster
Large-area MCP-PMT is an essential device for the neutrino detection experiment. The PMT requirements for this experiment are listed as follows: (1) Large size, high cathode coverage, and single PMT cathode as possible as covering its inner surface in 20 inches. (2) High detection efficiency. (3) Good single photoelectron detection capability and a large dynamic range. (4) Low radioactive...
Mr
Azar Sadigov
(National Nuclear Research Center, Baku, Azerbaijan)
5/25/15, 4:25โฏPM
S2 - Photon Detector and PID
Poster
A novel design and principle of performance of silicon photo-multipliers are presented. The new design comprises a semiconductor substrate and an array of independent micro-photo-transistors formed on the semiconductor substrate. Each micro-photo-transistor contains a photosensitive base operating in Geiger mode and an individual micro-emitter covering a small part of the base layer, thereby...
Dr
Giovanni Paternoster
(Fondazione Bruno Kessler)
5/25/15, 4:26โฏPM
S2 - Photon Detector and PID
Poster
New high-density (HD) cell silicon photomultipliers (SiPM) for near-ultraviolet light detection have been recently produced at Fondazione Bruno Kessler. The NUV-HD SiPMs are an evolution of the standard NUV technology, based on a p-on-n junction and featuring peak detection efficiency in the region between 380 and 480 nm. With respect to the standard NUV SiPMs, the HD technology implements a...
Marcello Simonetta
(PV)
5/25/15, 4:27โฏPM
S2 - Photon Detector and PID
Poster
The measurement system and characterization of more than 1000 SiPMs
intended to be used in the MEG high resolution timing counter is
presented.
After a brief a description of the aim of the MEG project and the
motivation of the reasons which led to the choice of the devices, the
hardware measurement system is described. SiPMs will be grouped by 12 to form a single pixel of the MEG timing...
Mr
Marco Mirra
(NA)
5/25/15, 4:28โฏPM
S2 - Photon Detector and PID
Poster
The NA62 experiment at CERN aims to measure with an error of 10% the decay fraction of the very rare process , studying the decay in flight of the contained in an intense secondary beam of positive particles of 75GeV / c momentum, produced using the proton beam of the CERN SPS. A particularly insidious source of background is due to events produced by the inelastic interactions of the beam...
Dr
Sebastian White
(Princeton University)
5/25/15, 4:29โฏPM
S2 - Photon Detector and PID
Poster
There is a growing interest in applying timing measurement of physics objects (leptons, jets, photons) in the high pileup environment planned for the next decade at the LHC. Time of occurrence of events within the same bunch (โin-time pileupโ) can be used analogously to the more commonly used โevent vertex positionโ tagging to resolve events of interest in this busy environment. Extending to...
Prof.
Sen Qian
(The Institute of High Energy Physics, Chinese Academy of Sciences)
5/25/15, 4:30โฏPM
S2 - Photon Detector and PID
Poster
The JUNO (Jiangmen Underground Neutrino Observatory) designed to build an underground lab on the location of JiangMen in south China as a generic underground national lab for many applications. The new promising neutrino programs request the higher performance of the detectors, especially the photo detector PMT (Photomultiplier Tube), need effectively large area, high quantum efficiency.
It...
Susan Walker
(Universitร degli Studi di Napoli "Federico II" & INFN Napoli)
5/25/15, 4:31โฏPM
S2 - Photon Detector and PID
Poster
Next generation multi-ton scale noble liquid experiments have the unique opportunity to discover dark matter particles at the TeV scale, reaching the paramount sensitivity of 10^-48 cm^2 in the WIMP nucleon scattering cross section. A prerequisite will be the reduction of radiogenic background sources to negligible levels, only possible if ultrapure high efficiency photosensors are available...
Prof.
Mose Mariotti
(INFN Sezione di Padova)
5/25/15, 4:32โฏPM
S2 - Photon Detector and PID
Poster
SiPm photo detectors are nowadays commonly used in many applications. It
has been shown that SiPm are "nearly ideals" light sensors for Imaging
Atmospheric Cherenkov Telescopes (IACT), however this was proven only
for small size telescopes.
For large size telescopes like MAGIC or the future Large Size Telescope
(LST) of the Cherenkov Telescope Array project (CTA), a pixel size of some cm2...
Dr
Vladimir Yurevich
(Joint Institute for Nuclear Research)
5/25/15, 4:33โฏPM
S2 - Photon Detector and PID
Poster
A system of Cherenkov detectors with picosecond time resolution are developed for study of heavy ion collisions with beams of Nuclotron and collider NICA at LHEP/JINR, Dubna. The detectors will be applied in two large scale setups BM@N and MPD with aim of production of a start signal for TOF detector and generation of an effective L0 trigger for nucleus โ nucleus collisions. The detectors are...
