전자 빔 조사 민감 물질의 전자회절분석을 위한 Imaging Plate 기술Imaging Plate Technique for the Electron Diffraction Study of a Radiation-sensitive Material under Electron Beam
An experimental comparison of the detection properties between imaging plate and film for recording the electron diffraction
pattern was carried out on a radiation-sensitive material, an aluminum trihydroxide (gibbsite, γ-Al(OH)₃), through
the electron beam irradiation. Because the imaging plate has a wide dynamic range sufficient for recording extremely
low- and high-electron intensities, the range of spatial frequency for the diffraction pattern acquired by the imaging plate
was extended to two times larger than the range by the film, especially at a low electron dose condition (‹0.1 e-/μm2). It
is also demonstrated that the imaging plate showed better resolving power for discriminating fine intensity levels even in
saturated transmitted beam. Hence, in the respect of investigating the structures of radiation-sensitive materials and cryobiological
specimens, our experimental demonstrations suggest that the imaging plate technique may be a good choice for
those studies, which have to use an extremely low electron intensity for recording.