Large Solid Angle 50 mm2 SDD for TEM Applications
نویسندگان
چکیده
منابع مشابه
Very Large Solid Angle Windowless SDD Applications for Nanostructure and Semiconductor Applications
The use of SDDs gives numerous advantages over conventional Si(Li) detectors. Large solid angle allows data to be acquired faster in low signal regimes, and high count rate situations are handled more easily due to inherent lower noise and excellent energy resolution [1]. Due to lower noise these detectors may also be operated at near room temperatures and only Peltier type cooling is required....
متن کاملPerformance of an Improved TEM SDD Detector
External SDD systems can also replace Si(Li) detectors on existing microscopes and offer many of the advantages of the in-situ SDD systems. Since the SDDs do not operate at liquid nitrogen temperatures, the insulation gaps in the nosepiece/collimator assemblies can be reduced or eliminated. Also, the detector window and the associated support frame are no longer used. This means that the detect...
متن کاملAngle Resolved TEM Imaging of Pt Nanoparticles
Particle shape and size are two of the most important characteristics of nanoparticulate catalysts that determined their activity and selectivity. In many studies, the shapes of nanoparticles are characterized using transmission electron micrographs obtained at a single nanoparticle orientation and thus, the shape determination is based on viewing a single cross-sectional profile of the nanopar...
متن کاملS-sdd Class of Matrices and Its Applications
S-SDD class of matrices has been introduced in [1] as a generalization of Ostrowski class, known in the literature also as doubly diagonally dominant matrices. As it was shown in [2], this class can be characterized by the special form of its “scaling” into an SDD matrix. Due to this fact, we can use S-SDD matrices as a tool for measuring and exploiting the magnitude of diagonal dominance. How ...
متن کاملProviding solid angle formalism for skyshine calculations
We detail, derive and correct the technical use of the solid angle variable identified in formal guidance that relates skyshine calculations to dose-equivalent rate. We further recommend it for use with all National Council on Radiation Protection and Measurements (NCRP), Institute of Physics and Engineering in Medicine (IPEM) and similar reports documented. In general, for beams of identical w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2010
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927610057454