Abstract Radiation detection and imaging are used for nondestructive testing in the field of production technology, diagnosis treatment medical field, security activities at airports nuclear facilities. To improve sensitivity resolution radiation imaging, light scattering self-absorption scintillator media should be suppressed. Thick film scintillators with a thickness several tens micrometers ...

Although the size effect in ferroelectric thin films has been known for long time, the underlying mechanism is not yet fully understood and whether or not there is a critical thickness below which the ferroelectricity vanishes is still under debate. Here, we directly measure the thickness-dependent polarization in ultrathin PbZr0.2Ti0.8O3 films via quantitative annular bright field imaging. We ...