Conveners
II.c Neutrino: Session 1
- Glenn Horton-Smith (Kansas State University)
II.c Neutrino: Session 2
- Bruce Baller (Fermilab)
II.c Neutrino: Session 3
- Glenn Horton-Smith (Kansas State University)
Prof.
Shulin Liu
(Institute of High Energy Physics, Chinese Academy of Sciences, Rd. Yuquan 19B, 100049, Beijing, China)
6/3/14, 11:00 AM
Experiments: 2c) Detectors for neutrino physics
Oral
In order to meet the needs of JUNO, we design and manufacture a kind of electrostatic focusing MCP-PMT which has very low radioactive background by introducing pure raw materials and controlling melting and artificial fine blowing process. This MCP-PMT has high photon detection efficiency which results from using transmission photocathode and reflection photocathode simultaneously, and the...
Mr
Yusuke Suda
(Department of Physics, University of Tokyo)
6/3/14, 11:20 AM
Experiments: 2c) Detectors for neutrino physics
Oral
We have been developing new photodetectors for the Hyper-Kamiokande (Hyper-K) detector, which is proposed as a next generation Megaton class water Cherenkov detector.
There are three candidate photodetectors; One is a 20-inch venetian blind dynode type PMT (R3600) which is used in Super-Kamiokande. Second is a newly developed box and line dynode type PMT which has a better collection...
Dr
Atsumu Suzuki
(Kobe University)
6/3/14, 11:40 AM
Experiments: 2c) Detectors for neutrino physics
Oral
Neutrino energy measurement is very important not only for a neutrino oscillation experiment but for a nuclear reactor monitor requested by IAEA (International Atomic Energy Agency) as one of their safeguards against misuse of nuclear technology and nuclear materials. The requirements for the reactor monitor are to be nonflammable and nonvolatile. As such a detector, we are developping a...
Yuji Takeuchi
(University of Tsukuba)
6/3/14, 12:00 PM
Experiments: 2c) Detectors for neutrino physics
Oral
We present the development of Superconducting Tunnel Junction (STJ) detectors as far-infrared single photon detector motivated by application to a search for radiative decay of cosmic background neutrino. The photon energy spectrum from the neutrino radiative decays is expected to have a sharp edge at high energy end in a far-infrared region ranging from 14meV to 25meV (from 50um to 90um in...
Matthew Wetstein
(University of Chicago)
6/3/14, 12:20 PM
Experiments: 2c) Detectors for neutrino physics
Oral
Neutron tagging in Gadolinium-doped water may play a significant role in reducing backgrounds from atmospheric neutrinos in next generation proton-decay searches using megaton-scale Water Cherenkov detectors. Similar techniques might also be useful in the detection of supernova neutrinos. Accurate determination of neutron tagging efficiencies will require a detailed understanding of the number...
Dr
Kota Ueshima
(Tohoku University RCNS)
6/5/14, 4:10 PM
Experiments: 2c) Detectors for neutrino physics
Oral
KamLAND-Zen experiment was started data taking from October 2011 to search for neutrino less double beta decay. The Mini-balloon filled with 136Xe loaded liquid scintillator was installed in the KamLAND detector. From the first result of KamLAND-Zen, there was the BG peak at 2.6 MeV region. As a result of data analysis, it was found that 110mAg was the BG candidate. The purification system of...
Dr
Cristina M. B. Monteiro
(University of Coimbra) (on behalf of the NEXT Collaboration)
6/5/14, 4:30 PM
Experiments: 2c) Detectors for neutrino physics
Oral
The NEXT Experiment aims to detect neutrinoless double beta decay using an HPXe TPC based on electroluminescence to be deployed in the Canfranc Underground Laboratory.
New-generation experiments for double beta decay detection need to be sensitive to lifetimes longer than 1025 years. One remarkable challenge is the conception of a detector that enables an efficient and unambiguous...
Thomas Brunner
(S)
6/5/14, 4:50 PM
Experiments: 2c) Detectors for neutrino physics
Oral
The nature of the neutrino, i.e. whether it is a Dirac or Majorana particle, remains a mystery. Decay experiments that search for the lepton-number violating neutrino-less double decay ($0\nu\beta\beta$) are an experimental approach to answer this question. EXO-200 is one such experiment, searching for a $0\nu\beta\beta$ signal in the $\beta\beta$ decay of $^{136}$Xe to its daughter isotope...
Gabriele Piperno
6/5/14, 5:10 PM
Experiments: 2c) Detectors for neutrino physics
Oral
The Neutrinoless Double Beta Decay ($0\nu$DBD) is a powerful tool to test physics beyond the Standard Model and to get insights on the Majorana neutrino nature and mass. Bolometers are excellent detectors to search for this rare decay, thanks to their good energy resolution and to the low background conditions in which they can operate. The current challenge consists in the reduction of the...
Andrey Elagin
(University of Chicago)
6/5/14, 5:30 PM
Experiments: 2c) Detectors for neutrino physics
Oral
We present initial studies of a technique for separating scintillation and
Cherenkov light in a large liquid scintillator detector in order to
reconstruct directionality for electrons with energies typical of
neutrino-electron scattering (5 MeV) and double-beta decay (2.1 MeV
and 1.4 MeV).
On average scintillation light is delayed with respect to the direct
Cherenkov light due to...
erik ramberg
(Fermilab)
6/6/14, 2:00 PM
Experiments: 2c) Detectors for neutrino physics
Oral
A recent study showed background limits to future dark matter searches coming from Coherent Elastic Neutrino Nucleus Scattering (CENNS) interactions of astrophysical and atmospheric neutrinos. There are a few possible ways to improve the limits by using directional measurements of the neutrino interactions and/or measuring time variation of the interactions. However, this CENNS background...
Mr
Mykhaylo Filipenko
(Erlangen Center for Astroparticle Physics - ECAP)
6/6/14, 2:20 PM
Experiments: 2c) Detectors for neutrino physics
Oral
Many experiments, especially low-background experiments like the search for
neutrinoless double beta decay, and applications, like Compton-imaging, would highly benefit from a room-temperature semiconductor voxel detector technology. A voxel detector is a 2D pixelated device which is able to determine the 3d coordinate (the depth of interaction) in every pixel. Thus, it can be used to...
Delia Tosi
(UW Madison / WIPAC)
6/6/14, 2:40 PM
Experiments: 2c) Detectors for neutrino physics
Oral
The IceCube neutrino observatory is composed of more than five thousand Digital Optical Modules (DOMs), installed on the surface and at depths between 1500 and 2500 m in clear ice at the South Pole. Each DOM incorporates a 10” diameter photomultiplier tube (PMT) intended to detect light emitted when high energy neutrinos interact with atoms in the ice. Depending on the energy of the neutrino...
Diego Gonzalez Diaz
(Universidad de Zaragoza (ES))
6/6/14, 3:00 PM
Experiments: 2c) Detectors for neutrino physics
Oral
Microbulk-Micromegas constitutes a new generation of Micromegas (MICRO MEsh GAseous Structure) used for the detection and tracking of particles. Its simplicity, inherited from its constituent element --a double copper-clad kapton foil--, enhances its radiopurity, making it particularly well suited for Rare Event searches. The energy resolution is amongst the best obtained with Micro-Pattern...
Michael DuVernois
(University of Wisconsin)
6/6/14, 3:20 PM
Experiments: 2c) Detectors for neutrino physics
Oral
The Askaryan Radio Array (ARA), currently under construction at the South Pole, is a large-scale cosmogenic neutrino detector designed to observe the coherent radio pulses associated with neutrino-induced cascades in the radio-transparent cold Antarctic ice. The detector incorporates novel bore-hole antenna designs, RF over fiber technology, custom ASIC digitizer, FPGA-based triggering, and...
