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range
100%
therapy
100%
iterative methods
100%
rings
100%
verification
100%
protons
100%
positron computed tomography
100%
design
55%
maximum-likelihood fit
33%
beams
33%
comparative evaluations
22%
algorithms
22%
images
22%
implementation
22%
delivery
22%
phantoms
22%
modifications
11%
data
11%
matrices
11%
roots
11%
monitoring
11%
errors
11%
devices
11%
constraints
11%
irradiation
11%
neoplasms
11%
isotopes
11%
Keyphrases
Iterative Reconstruction
100%
Open Ring
100%
Range Verification
100%
Ring Design
37%
Maximum Likelihood Expectation Maximization Algorithm
25%
Fixed Position
25%
In-beam Positron Emission Tomography
25%
Multiple Isotopes
12%
Post-irradiation
12%
3D Imaging
12%
One Field
12%
Inter-field
12%
Beam Direction
12%
Maximum Likelihood Expectation Maximization
12%
Tomography System
12%
Multiple Fields
12%
Data Reconstruction
12%
Engineering
Fixed Position
66%
Expectation Maximization Algorithm
66%
System Matrix
33%
Computational Technique
33%
Computer Science
positron emission tomographic scan
100%
Proof
16%
Beam Direction
16%
Design Constraint
16%
3D Imaging
16%
Neuroscience
Positron Emission Tomography
100%
Medicine and Dentistry
Image Quality
16%
3D Imaging
16%