Conveners
Morning Session: Opening
- Leonid Poperenko (Taras Shevchenko National University of Kyiv, Faculty of Physics, Chair of Optics)
Morning Session: Talks from Shizuoka University
- Serhii Derenko (Taras Shevchenko National University of Kyiv)
We calculated [1] a spin-polarized conductance in the almost unexplored nanostructure "high temperature ferromagnetic insulator/ graphene/ ferroelectric film" with a special attention to the control of electric polarization direction and value in a multiaxial ferroelectric film by a misfit strain. We proposed a phenomenological model taking into account the shift of the Dirac point due to the...
TlBr has been recently studied as a compound-semiconductor radiation detector operating at room temperature, because of its large atomic number (Tl:81, Br:35), high density (7.56 g/cm3) and large band gap of 2.68 eV, which makes it suitable for room temperature operation, it has the necessary low thermal noise. In addition, it has a low melting point of 460°C, which facilitates crystal growth,...
CdTe has been used as an X-ray image detector because of its high sensitivity, energy and spatial resolution, and room temperature operation. In order to build image detectors, it is necessary to bond CdTe pixel elements to a signal-reading LSI, and it is necessary to maintain the performance even if it is added heat treatment in order to use an efficient method for making contacts with the...
The standard for imaging equipment called UHD, has features such as high resolution, wide color gamut, and wide dynamic range compared with standard for HD. wide color gamut displays such as UHD compatible displays has been considering for application not only in the entertainment field but also in the medical and industrial fields. It is considered important for imaging equipment used in the...
Photon counting type detectors can record incident photons along with their energy.Spectral X-ray imaging with this photon counting type detectors, which measures X-ray photons with each energy, is expected to identify material and improve contrast by utilizing the interaction with substances that differ depending on the energy of X-rays.Due to the characteristics of the ...
X-ray imaging has been widely used in the fields of medical examinations, non-destructive testing, and security as observing the interior of objects due to its high penetrating power. Spectral CT can provide high contrast even for objects with similar densities, and can distinguish materials by using energy information. On the other hand, the amount of information about interior of objects...
X-ray imaging is used in variety of fields such as medical, industrial and security fields.
Photon counting type X-ray image detectors have been developed in our group. Compared with current-integration type detectors which is used as a conventional type detectors, photon counting type image detectors can eliminate noise such as thermal noise and leakage current by setting a threshold value...
This study is about to developing an imaging instrument using a small neutron source. X-ray penetration image and neutron penetration image have a complementary relationship. The neutron penetration imaging has advantage of structural analysis of materials containing light elements than X-ray penetration imaging, and it can image interior of thick metals due to its very high transmission...
Photon counting, which measures the energy information of X-ray photons, is an advanced imaging technique in X-ray imaging. One of the merits compared with the conventional energy integrating detectors is the high sensitivity for detecting individual X-ray photons. On the other hand, the range of detectable doses is limited by the pile-up effect in which the detection of multiple photons...
