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High spatial resolu...
High spatial resolution measurement of depth-of-interaction of a PET LSO crystal
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Simon, A. (författare)
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Balkay, L. (författare)
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Kalinka, G. (författare)
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- Kerek, Andras (författare)
- KTH,Medicinsk teknik
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Novak, D. (författare)
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Sipos, A. (författare)
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Vegh, J. (författare)
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Tron, L. (författare)
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Molnar, J. (författare)
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 546:1-2, s. 33-36
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A new type of experimental technique to investigate the depth- of-interaction (DOI) dependence in small scintillator elements designed for high-resolution animal PET is tested. An Oxford-type nuclear microprobe was used to irradiate a lutetium oxyorthosilicate (LSO) crystal (2 x 2 x 10 mm) with a highly focused, (few micrometers diam.), 2 MeV He+ beam. Pulse height spectra from a PMT attached to one end of the LSO crystal were collected in list mode. By scanning the beam over the crystal high-resolution 2D-images are generated and thus the DOI effect in the scintillator could be investigated. The obtained results of the overall DOI dependence confirm previous findings using gamma-rays. Since the present experimental setup allows obtaining data with several orders of magnitude better spatial resolution than with collimated gamma-beam, the method can be applied for variety of problems where high spatial resolution is required.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk apparatteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Equipment Engineering (hsv//eng)
Nyckelord
- nuclear microprobe
- PET
- depth-of-interaction (DOI)
- photomultiplier
- scanning proton microprobe
- detector
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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