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 EELS of hexagonal boron nitride (h-BN). E0 =100keV,


beam current=170 pA, 10s exposure, 0.28 eV/ch. Raw data (no dark subtraction or gain normalizati- on).


Momentum-resolved EELS of h-BN showing phonon dispersion curves S(q, ω) acquired in 6.7 minutes (100 frames x 4 seconds, aligned) using a slot ent- rance aperture. E0


energy resolution 10 meV. =60 keV, beam current=10 pA,


Detector sensitivity test with no signal. Top: With short exposure times, there is no background. Bottom: With long exposure times, cosmic rays (typi- cally muons) are detected.


DECTRIS ELA on Nion Iris EELS


A new direct detector for 30-200 keV EELS


DECTRIS hybrid pixel detector


– 1030 x 516 pixels of 75 μm each – 2,250 full frames/s and faster for sub-areas – PSF @ 100 keV ~ 1.3 pixels, better at lower keV – DQE ~ 0.8 (without super-resolution) – Dynamic range > 106


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– Can use >100 pA while counting single electrons – Optimized for 30-200 keV operation


sales@dectris.com | www.dectris.com


sales@nion.com | www.nion.com


Visit our booths DECTRIS #1002 / Nion #1102


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