Novel Detector Technologies for Medical Applications at the Example of Tumor Detection in BNCT

Show simple item record

dc.contributor Helsingin yliopisto, matemaattis-luonnontieteellinen tiedekunta, fysiikan laitos fi
dc.contributor Helsingfors universitet, matematisk-naturvetenskapliga fakulteten, institutionen för fysik sv
dc.contributor University of Helsinki, Faculty of Science, Department of Physics en
dc.contributor Helsinki Institute of Physics en
dc.contributor.author Winkler, Alexander fi
dc.date.accessioned 2017-09-20T12:58:09Z
dc.date.available 2017-10-10 fi
dc.date.available 2017-09-20T12:58:09Z
dc.date.issued 2017-10-20 fi
dc.identifier.uri URN:ISBN:978-951-51-3692-3 fi
dc.identifier.uri http://hdl.handle.net/10138/224382
dc.description.abstract The next evolutionary step in medical imaging and radiation therapy is to employ novel detector technologies capable of photon counting operations. These detectors allow to acquire the spectrum of the radiation for each pixel. Currently used energy integrating detectors do not allow this. Two types of detector materials capable of photon counting operation are discussed in this work. With the result that the detector technology based on CdTe and CdZnTe is more matured than GaAs. The spectral information of photon counting detectors can be used for numerous applications and diagnostic improvements. A distinct example is presented for boron neutron capture therapy (BNCT). This therapy lacks an accurate real time method to determine the 10B concentration within the patient. Previous approaches failed because of the low signal to noise ratio of the used signal. A method has been proposed to improve this therapy by employing CdTe based photon counting detectors. These detectors allow detection of a secondary signal with a higher signal to noise ratio. Additionally, efforts to produce CdTe based photon counting detector arrays, for medical applications, are described. en
dc.description.abstract The next evolutionary step in medical imaging and radiation therapy is to use novel detector technologies capable of detecting the "colour" of X-rays. These devices are called photon counting detectors. Currently used energy integrating detectors do not allow this. Two types of detector materials capable of photon counting operation are discussed in this work. With the result that the detector technology based on CdTe and CdZnTe is more matured than GaAs. These photon counting detectors can be used for numerous applications and diagnostic improvements. A distinct example is presented for boron neutron capture therapy (BNCT). This therapy lacks an accurate method to determine the 10B concentration within the patient and during the treatment. Previous approaches failed because on the low signal strength (signal to noise ratio). In this work a method has been proposed to improve the therapy by employing CdTe based photon counting detectors. These detectors allow detection of another signal that is stronger (higher signal to noise ratio). Additionally, efforts to produce CdTe based photon counting detector arrays, for medical applications, are described. fi
dc.format.mimetype application/pdf fi
dc.language.iso en fi
dc.publisher Helsingin yliopisto fi
dc.publisher Helsingfors universitet sv
dc.publisher University of Helsinki en
dc.relation.isformatof URN:ISBN:978-951-51-3691-6 fi
dc.relation.isformatof Helsinki: Unigrafia, 2017, Report Series in Physics. 0356-0961 fi
dc.rights Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. fi
dc.rights This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. en
dc.rights Publikationen är skyddad av upphovsrätten. Den får läsas och skrivas ut för personligt bruk. Användning i kommersiellt syfte är förbjuden. sv
dc.subject fi
dc.title Novel Detector Technologies for Medical Applications at the Example of Tumor Detection in BNCT en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.type.ontasot Doctoral dissertation (article-based) en
dc.type.ontasot Doktorsavhandling (sammanläggning) sv
dc.ths Savolainen, Sauli fi
dc.ths Luukka, Panja fi
dc.ths Härkönen, Jaakko fi
dc.opn Jokinen, Ari fi
dc.type.dcmitype Text fi

Files in this item

Total number of downloads: Loading...

Files Size Format View
NovelDet.pdf 8.119Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record