16,208 research outputs found
The RTA Betatron-Node Experiment: Limiting Cumulative BBU Growth In A Linear Periodic System
The successful operation of a Two-Beam accelerator based on extended
relativistic klystrons hinges upon decreasing the cumulative dipole BBU growth
from an exponential to a more manageable linear growth rate. We describe the
theoretical scheme to achieve this, and a new experiment to test this concept.
The experiment utilizes a 1-MeV, 600-Amp, 200-ns electron beam and a short
beamline of periodically-spaced rf dipole-mode pillbox cavities and solenoid
magnets for transport. Descriptions of the beamline are presented, followed by
theoretical studies of the beam transport and dipole-mode growth.Comment: 3 pages, 3 figures. Submitted to XX Int'l. LINAC Conferenc
Deep Learning in Cardiology
The medical field is creating large amount of data that physicians are unable
to decipher and use efficiently. Moreover, rule-based expert systems are
inefficient in solving complicated medical tasks or for creating insights using
big data. Deep learning has emerged as a more accurate and effective technology
in a wide range of medical problems such as diagnosis, prediction and
intervention. Deep learning is a representation learning method that consists
of layers that transform the data non-linearly, thus, revealing hierarchical
relationships and structures. In this review we survey deep learning
application papers that use structured data, signal and imaging modalities from
cardiology. We discuss the advantages and limitations of applying deep learning
in cardiology that also apply in medicine in general, while proposing certain
directions as the most viable for clinical use.Comment: 27 pages, 2 figures, 10 table
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