High Speed, High Resolution Imaging Spectrometers Based on pnCCDs for XRF and XRD Applications
نویسندگان
چکیده
منابع مشابه
High Speed, High Resolution pnCCDs as Two Dimensional Imaging Spectrometers for X-rays and Electrons
Since several years pnCCDs are well known as radiation detectors for spectroscopic imaging in many fields of science: X-Ray Fluorescence analysis (XRF), X-ray astronomy, X-ray Free Electron Laser science, synchrotrons and in the visible range as wave front sensors in adaptive optics systems. For direct electron detection in the focal plane of (S)TEMs they have delivered remarkable results in an...
متن کاملAtmospheric Correction Iterative Method for High Resolution Aerospace Imaging Spectrometers
The increasing radiometric accuracy and spectral resolution of the new aerospace optical imagers for Earth observation could allow a better characterization of the environment. This is true if accurate radiometric calibrations of the sensor are performed and atmospheric effects on the acquired data are carefully accounted for. To obtain spectral surface reflectance maps from the at-sensor radia...
متن کاملHigh Speed, High Throughput Two Dimensional Direct Electron Detector Based on the Concept of pnCCDs
Two dimensional direct detection electron imaging solid state sensor systems, subject to intense radiation, suffer from charge overflow to neighbouring pixels. This not only affects the dynamic range and linearity, but also the position precision of e.g. the electron impinging on the detector. Various techniques have been proposed to overcome the problem of charge overflowing the pixels. Severa...
متن کاملVortextm – a New High Performance Silicon Drift Detector for Xrd and Xrf Applications
A new class of silicon drift detectors (SDD), called “VortexTM”, with a large active area (~ 0.5 cm), high-energy resolution (<150 eV FWHM) and high-count rate capability (>1 Mcps) has been developed for X-ray diffraction (XRD) and X-ray fluorescence (XRF) applications. The VortexTM design allows for a relatively large active area while still maintaining a very low anode capacitance (~ 60 fF). ...
متن کاملPhase Frequency Detector Using Transmission Gates for High Speed Applications
In this paper a new phase-frequency detector is proposed using transmission gates which can detect phase difference less than 500ps. In other word, the proposed Phase-frequency Detector (PFD) can work in frequencies higher than 1.7 GHz, whereas a conventional PFD operates at frequencies less than 1.1 GHz. This new architecture is designed in TSMC 0.13um CMOS Technology. Also, the proposed PFD a...
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: 2016
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927616001355