Research pojects in Yamamoto Lab.
Development
of a high resolution, high sensitivity animal PET
We are developing a high resolution, high sensitivity detector for animal PET with depth of interaction(DOI) detection capability. We used phoswich detector of different Ce concetration for DOI detector. This idea was introduced by Yamamoto et al in 1997.
Animal PET system
Miuti-layer,
DOI, MR-compatible PETsystem
A multi-layer, DOI, MR-compatible PET system is designed and now constructed. DOI detectors are connected to optical fibers. With this PET system 2-ring (3-slices), 2-layers DOI, MR-compatible PET will be realized.
MR-compatible PET system
Positron
probes and imaging probes
Positron probes and imaging probes for FDG buided surgery are target of our research. These probes are only sensitive for positrons not for gamma photons. As a result, only positrons canbe selectively detected.
Positron imaging probe
Development
of next generation PET detectors
We are developing a high resolution detector for animal PET with depth of interaction(DOI) detection capability. A detector system for cost effective PET is also a target. Performance evaluation of newly developed scintillators are currently performed for PET detector applications.
1-D sharing block detector
Development
of radon detectors and applocation to environmental measurements
We are develping a radon detector for environmental air, a detector for underground soil, and a detector in water. We also used these radon detectors for monitoring indoor and outdoor radon concentration, radon concetration in underground soil gas. A data loggers for thses radon detectors are also developed.
Developed radon concetration monitoring system
Brain
researches using functional magnetic resonance imaging(fMRI)
We used fMRI to find out what areas of brain are activated when human generate visual mental imagery. We also develop some fMRI related instruments such as user friendly visual and auditory stimulator or EEG monitoring system that can operate in fMRI.
Development
of an event-related potentials(ERP) system and its
applocation to brain researches
We are developing a multi-channel ERP moitoring system with user friendly stimulator to measure higher order brain functions in humans. We also measure the temporal information using the ERP system for visual mental imagery task and face recognition task for estimating the speed of these functions.