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Journals
Atoms
Special Issues
Feature Papers 2012/2013
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Feature Papers 2012/2013

A special issue of Atoms (ISSN 2218-2004).

Deadline for manuscript submissions: closed (1 July 2013) | Viewed by 15018

Special Issue Editor

Dr. James F. Babb

E-Mail Website
Editor-in-Chief
Institute for Theoretical Atomic and Molecular Physics, Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA 02138, USA
Interests: atomic and molecular structure; astrophysical applications of atomic and molecular physics; Casimir; relativistic; and quantum electrodynamics effects in atoms and molecules; long-range forces
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Published Papers (1 paper)

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Review

497 KiB  
Review
Emission of β+ Particles Via Internal Pair Production in the 0+ – 0+ Transition of 90Zr: Historical Background and Current Applications in Nuclear Medicine Imaging
by Marco D'Arienzo
Atoms 2013, 1(1), 2-12; https://doi.org/10.3390/atoms1010002 - 8 Mar 2013
Cited by 30 | Viewed by 14612
Abstract
90Y is traditionally considered as a pure β– emitter. However, the decay of this radionuclide has a minor branch to the 0+ first excited state of 90Zr at 1.76 MeV, that is followed by a β+/β– [...] Read more.
90Y is traditionally considered as a pure β– emitter. However, the decay of this radionuclide has a minor branch to the 0+ first excited state of 90Zr at 1.76 MeV, that is followed by a β+/β– emission. This internal pair production has been largely studied in the past because it is generated by a rare electric monopole transition (E0) between the states 0+/0+ of 90Zr. The positronic emission has been recently exploited for nuclear medicine applications, i.e. positron emission tomography (PET) acquisitions of 90Y-labelled radiopharmaceuticals, widely used as therapeutic agents in internal radiation therapy. To date, this topic is gaining increasing interest in the radiation dosimetry community, as the possibility of detecting β+ emissions from 90Y by PET scanners may pave the way for an accurate patient-specific dosimetry. This could lead to an explosion in scientific production in this field. In the present paper the historical background behind the study of the internal pair production of the 0+/0+ transition of 90Zr is presented along with most up to date measured branch ratio values. An overview of most recent studies that exploit β+ particles emitted from 90Y for PET acquisitions is also provided. Full article
(This article belongs to the Special Issue Feature Papers 2012/2013)
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