Fundamental limits of spatial resolution in PET
نویسندگان
چکیده
منابع مشابه
Fundamental x-ray interaction limits in diagnostic imaging detectors: Spatial resolution.
The practice of diagnostic x-ray imaging has been transformed with the emergence of digital detector technology. Although digital systems offer many practical advantages over conventional film-based systems, their spatial resolution performance can be a limitation. The authors present a Monte Carlo study to determine fundamental resolution limits caused by x-ray interactions in four converter m...
متن کاملThermodynamic Limits of Spatial Resolution in Active Thermography
Thermal waves are caused by pure diffusion: their amplitude is decreased by more than a factor of 500 within a propagation distance of one wavelength. The diffusion equation, which describes the temperature as a function of space and time, is linear. For every linear equation the superposition principle is valid, which is known as Huygens principle for optical or mechanical wave fields. This li...
متن کاملSpatial resolution limits in electron-beam-induced deposition
Electron-beam-induced deposition EBID is a versatile microand nanofabrication technique based on electron-induced dissociation of metal-carrying gas molecules adsorbed on a target. EBID has the advantage of direct deposition of three-dimensional structures on almost any target geometry. This technique has occasionally been used in focused electron-beam instruments, such as scanning electron mic...
متن کاملSpectrum Sensing: Fundamental Limits
Cognitive radio systems need to be able to robustly sense spectrum holes if they want to use spectrum opportunistically. However, this problem is more subtle than it first appears. It turns out that real-world uncertainties make it impossible to guarantee both robustness and high-sensitivity to a spectrum sensor. A traditional time-domain perspective on this is relatively straightforward, but t...
متن کاملFundamental limits of optical microrheology.
We estimate the fundamental limits of different microrheological techniques based on optical detection. It is suggested that particle tracking systems using nondifferential detection have a minimum detectable displacement given by 0.2(lambda0/NA)(1/square root of (SNR)), where lambda0 is the wavelength, NA is the numerical aperture of the focusing objective, and SNR is the signal-to-noise ratio...
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: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2011
ISSN: 0168-9002
DOI: 10.1016/j.nima.2010.11.092