8 research outputs found
A Proof-of-principle for Time-Of-Flight Positron Emission Tomography Imaging
Time-Of-Flight (TOF) is a noble technique that is used in Positron Emission
Tomography (PET) imaging worldwide. The scintillator based imaging system that
is being used around the world for TOF-PET is very expensive. Multi-gap
Resistive Plate Chambers (MRPCs) are gaseous detectors which are easy to
fabricate, inexpensive and have excellent position and timing resolution. They
can be used as a suitable alternative to highly expensive scintillators. For
the sole purpose of TOF-PET, a pair of 18 cm 18 cm, 5 gap, glass-based
MRPC modules have been fabricated. Our main aim was to determine the shift in
the position of the source (Na-22) with these fabricated MRPCs. In this
document, the details of the experimental results will be presented
Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)
The upcoming 50 kt magnetized iron calorimeter (ICAL) detector at the
India-based Neutrino Observatory (INO) is designed to study the atmospheric
neutrinos and antineutrinos separately over a wide range of energies and path
lengths. The primary focus of this experiment is to explore the Earth matter
effects by observing the energy and zenith angle dependence of the atmospheric
neutrinos in the multi-GeV range. This study will be crucial to address some of
the outstanding issues in neutrino oscillation physics, including the
fundamental issue of neutrino mass hierarchy. In this document, we present the
physics potential of the detector as obtained from realistic detector
simulations. We describe the simulation framework, the neutrino interactions in
the detector, and the expected response of the detector to particles traversing
it. The ICAL detector can determine the energy and direction of the muons to a
high precision, and in addition, its sensitivity to multi-GeV hadrons increases
its physics reach substantially. Its charge identification capability, and
hence its ability to distinguish neutrinos from antineutrinos, makes it an
efficient detector for determining the neutrino mass hierarchy. In this report,
we outline the analyses carried out for the determination of neutrino mass
hierarchy and precision measurements of atmospheric neutrino mixing parameters
at ICAL, and give the expected physics reach of the detector with 10 years of
runtime. We also explore the potential of ICAL for probing new physics
scenarios like CPT violation and the presence of magnetic monopoles.Comment: 139 pages, Physics White Paper of the ICAL (INO) Collaboration,
Contents identical with the version published in Pramana - J. Physic