Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 24 - Problems: 24.68

Answer

See explanation below.

Work Step by Step

In the positron-emission tomography (PET), the isotope emits positrons which annihilate a closer electron and simultaneously two γ photons are also emitted. 180° apart from each other. Detectors locate the sites and the image is analyzed by computer.
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