منابع مشابه
Décomposition de spectres en motifs paramétriques par approximation parcimonieuse
We consider the decomposition of a series of spectra such as those acquired in photoelectron spectroscopy [16]: the data consist of several spectra acquired at different times. The peaks in the spectra are assumed to be Gaussian with positive amplitudes and their characteristics vary slowly between two consecutive spectra. This work aims at estimating the peak parameters and their evolution to ...
متن کاملQuality Assurance / Phantoms
Gamma index pass rates were evaluated for an anthropomorphic phantom using both 2D and 3D calculations. The phantom was irradiated with the traditional dosimetry insert loaded with radiochromic film and TLD, and then with a 3D dosimetry insert. A comparison with the calculated dose distribution showed that both the PRESAGE® dosimeter and the film and TLD system agreed with the plan to within 5%...
متن کاملDynamic digital phantoms
The construction parameters and the composition of phantoms are strictly specified. Hence comparing the results from repeated imaging of a phantom with different imaging parameters allows isolation of the effect of the varied parameter. With this knowledge one can assign settings for optimum imaging of that particular phantom. Ideally the phantom would be exactly the same for every scan to allo...
متن کاملPhantoms in the brain
After amputation many people experience vivid sensations of the body part they have lost. These “sensory ghosts” can arise within hours of the loss of the limb and are often painful. Such phenomena have been a mysterious part of medical lore for over a century, but recent research suggests that phantoms can teach us substantial lessons about the organisation and plasticity of the brain. We stan...
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: French Studies
سال: 2005
ISSN: 1468-2931,0016-1128
DOI: 10.1093/fs/kni143