Conveners
Saturday Afternoon: Light Collection, WLS
- Carlos Escobar (FNAL)
Prof.
Ernesto Kemp
(University of Campinas (BR) and Fermilab)
23/09/2017, 14:00
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
The LArIAT experiment utilizes a Liquid Argon Time Projection Chamber (LArTPC) at the Fermilab Test Beam Facility to study the response of LArTPCs to charged particles of energies relevant for planned neutrino experiments. In addition, it will help to develop and evaluate the performance of the simulation, analysis, and reconstruction software used in other LAr neutrino experiments. Particles...
Mr
Bruno Gelli
(Universidade Estadual de Campinas - UNICAMP)
23/09/2017, 14:15
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
The Time Projection Chambers with noble gases are a powerful neutrino detector. The
light emitted by the scintillation process is mostly invisible to the most common light
detection systems. The vastly used solution to this problem is to use wavelength shifters
to downshift the high energy scintillation photons into less energetic ones.
Some Wavelength shifters’ characteristics are not...
Christopher Benson
23/09/2017, 14:30
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
A key enabling technology for many liquid noble gas (LNG) detectors is the use of the common wavelength shifting medium Tetraphenyl Butadiene (TPB). TPB thin films are used to shift ultraviolet scintillation light into the visible spectrum for detection and event reconstruction. The effective wavelength shifting efficiency and emission spectrum of TPB have been previously measured down to 120...
Bruce Howard
(Indiana University)
23/09/2017, 14:45
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
As liquid argon (LAr) time-projection chamber (TPC) detectors are built to provide increased sensitivity to neutrino oscillation physics and other rare phenomena such as supernova neutrino bursts and nucleon decays, larger fiducial volumes have become necessary. While the ionization signals are detected by the TPC, the scintillation signals from LAr provide additional information about events...
Dr
Diego Garcia-Gamez
(The University of Manchester)
23/09/2017, 15:00
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
The SBND detector is a Liquid Argon Time Projection Chamber (LArTPC) being constructed on the Booster Neutrino Beamline at Fermilab as a part of the Short Baseline Neutrino Programme, which aims to definitely resolve the question of the existence of light sterile neutrinos. SBND's goals also include the development of liquid argon technology for future large scale detectors such as DUNE. One...
Mr
Jarrett Moon
(MIT)
23/09/2017, 15:15
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
Efficient collection of scintillation produced in liquid argon time projection chambers (LArTPCs) is critical for the success of upcoming neutrino experiments using this technology such as protoDUNE, DUNE, and SBND. To optimize photocoverage, a system comprising flat panel light guides read out at the ends with silicon photomultipliers will be used. In order to convert the UV LAr scintillation...
Prof.
Ernesto Kemp
(University of Campinas - UNICAMP)
23/09/2017, 15:30
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
The Liquid Argon Time Projection Chambers (LArTPCs) are the best choice for the next generation of large neutrino detectors due to their optimal performance in particle tracking and calorimetry. The detection of Ar scintillation light plays a crucial role in the event reconstruction as well as time reference for nonbeam physics such as supernovae neutrinos detection and baryon number violation...
Prof.
Ana Amelia Machado
(UFABC)
23/09/2017, 15:45
Light/charge readout (PMTs, SiPM, WLS, electronics, etc.)
Presentation
The X-ARAPUCA is an improvement of the concept of the original ARAPUCA device. The original idea remains the same in term of photon trapping inside an highy reflective box. The acceptance window is constituted by a dichroic window, which has the property of being highly transparent for wavelengths below a certain cutoff, while being highly reflective above it. The filter is coated with two...
