EBSD Analysis of Beam Sensitive Materials by Direct Detection
EBSD Analysis of Beam Sensitive Materials by Direct Detection
EBSD pattern collection on beam-sensitive materials is limited by the beam current and accelerating voltage that can be applied without damaging the crystal structure. In this webinar, we will use a Clarity™ detector to explore the minimum number of electrons required to produce indexable diffraction patterns as a function of backscatter coefficient, fraction of diffracted electrons, and accelerating voltage. In many cases, indexable patterns can already be obtained using beam currents in the pA range with less than 20 electrons per pixel. When the obtained diffracted intensity is still insufficient to get good indexing, the quality of extremely poor patterns can be enhanced using NPAR™ by considering adjacent EBSD patterns without the need to increase the beam current. Unmatched performance for low-dose mapping will be illustrated with examples of biominerals and perovskite photovoltaic materials, along with applications in lithium battery technology and more.
EBSD pattern collection on beam-sensitive materials is limited by the beam current and accelerating voltage that can be applied without damaging the crystal structure. In this webinar, we will use a Clarity™ detector to explore the minimum number of electrons required to produce indexable diffraction patterns as a function of backscatter coefficient, fraction of diffracted electrons, and accelerating voltage. In many cases, indexable patterns can already be obtained using beam currents in the pA range with less than 20 electrons per pixel. When the obtained diffracted intensity is still insufficient to get good indexing, the quality of extremely poor patterns can be enhanced using NPAR™ by considering adjacent EBSD patterns without the need to increase the beam current. Unmatched performance for low-dose mapping will be illustrated with examples of biominerals and perovskite photovoltaic materials, along with applications in lithium battery technology and more.