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Statistical Computing in Nuclear Imaging
book

Statistical Computing in Nuclear Imaging

by Arkadiusz Sitek
December 2014
Intermediate to advanced content levelIntermediate to advanced
275 pages
9h 12m
English
CRC Press
Content preview from Statistical Computing in Nuclear Imaging
Basics of nuclear imaging 149
x
y
FIGURE 5.13 Voxel representation of imaged volumes.
Chapter 3, we provide the definition because it is a key quantity used in
the
imaging field. How this quantity relates to the theory used in this book is
important. We will use symbol a to denote the activity. The radio de nsity and
activity are closely related. For example, if r is the number of nuclei in a voxel,
the activity of this voxel is
a = λr (5.9 )
where λ is the decay constant. The value of activity a is proportional to dis-
crete quantity r (Equation (5.9)) and it is frequently assumed that it is a
continuous quantity for larg e r. However, it should be clear ...
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Publisher Resources

ISBN: 9781439849347