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- Fredenberg, Erik,PhD,1979-KTH,Medicinsk bildfysik,Medical Imaging (author)
A Tunable Energy Filter for Medical X-Ray Imaging
- Article/chapterEnglish2008
Publisher, publication year, extent ...
- Hindawi,2008
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-11633
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11633URI
- https://doi.org/10.1155/2008/635024DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-105884URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
Classification
Notes
- QC 20100713
- A multiprism lens (MPL) is a refractive X-ray lens, and its chromatic properties can be employed in an energy filtering setup to obtain a narrow tunable X-ray spectrum. We present the first evaluation of such a filter for medical X-ray imaging. The experimental setup yields a 6.6 gain of flux at 20 keV, and we demonstrate tunability by altering the energy spectrum to center also around 17 and 23 keV. All measurements are found to agree well with ray-tracing and a proposed geometrical model. Compared to a model mammography system with absorption filtering, the experimental MPL filter reduces dose 13–25% for 3–7 cm breasts if the spectrum is centered around the optimal energy. Additionally, the resolution is improved 2.5 times for a 5 cm breast. The scan time is increased 3 times but can be reduced with a slightly decreased energy filtering and resolution.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Annan teknik Övrig annan teknik hsv//swe
- ENGINEERING AND TECHNOLOGY Other Engineering and Technologies Other Engineering and Technologies not elsewhere specified hsv//eng
- TEKNIK OCH TEKNOLOGIER Medicinteknik Medicinsk laboratorie- och mätteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Medical Engineering Medical Laboratory and Measurements Technologies hsv//eng
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Radiologi och bildbehandling hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine Radiology, Nuclear Medicine and Medical Imaging hsv//eng
- NATURVETENSKAP Fysik Atom- och molekylfysik och optik hsv//swe
- NATURAL SCIENCES Physical Sciences Atom and Molecular Physics and Optics hsv//eng
- x-ray imaging
- mammography
- x-ray optics
- multiprism lens
- energy filtering
- radiation dose
- Other engineering physics
- Övrig teknisk fysik
- Medical engineering
- Medicinsk teknik
- Radiological physics
- Radiofysik
- Optical physics
- Optisk fysik
Added entries (persons, corporate bodies, meetings, titles ...)
- Cederström, BjörnKTH,Medicinsk bildfysik,Medical Imaging(Swepub:kth)u1oerth9 (author)
- Åslund, Magnus (author)
- Ribbing, CarolinaUppsala universitet,Fasta tillståndets elektronik,Department of Engineering Sciences(Swepub:uu)cri26208 (author)
- Danielsson, Mats,ProfessorKTH,Medicinsk bildfysik,Medical Imaging(Swepub:kth)u1m3qe0f (author)
- KTHMedicinsk bildfysik (creator_code:org_t)
Related titles
- In:X-Ray Optics and Instrumentation: Hindawi20081687-76321687-7640
Internet link
- https://doi.org/10.1155/2008/635024Fulltext
- http://www.hindawi.com/journals/xroi/2008/635024.htmlA Tunable Energy Filter for Medical X-Ray Imaging
- http://downloads.hindawi.com/archive/2008/635024.pdf
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11633
- https://doi.org/10.1155/2008/635024
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-105884
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