Sökning: AMNE:(TEKNIK OCH TEKNOLOGIER Medicinteknik)
> (2010-2019) >
Energy filtering wi...
Energy filtering with x-ray lenses: Optimization for photon-counting mammography
-
- Fredenberg, Erik, PhD, 1979- (författare)
- KTH,Medicinsk bildfysik
-
- Cederström, Björn (författare)
- KTH,Medicinsk bildfysik,Medical Imaging
-
- Danielsson, Mats (författare)
- KTH,Medicinsk bildfysik,Medical Imaging
-
(creator_code:org_t)
- 2010-02-23
- 2010
- Engelska.
-
Ingår i: Radiation Protection Dosimetry. - : Oxford University Press (OUP). - 0144-8420 .- 1742-3406. ; 139, s. 339-342
- Relaterad länk:
-
https://kth.diva-por... (primary) (Raw object)
-
visa fler...
-
http://kth.diva-port...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Chromatic properties of the multi-prism and prism-array x-ray lenses (MPL and PAL) can potentially be utilized for efficient energy filtering and dose reduction in mammography. The line-shaped foci of the lenses are optimal for coupling to photon-counting silicon strip detectors in a scanning system. A theoretical model was developed and used to investigate the benefit of two lenses compared to an absorption-filtered reference system. The dose reduction of the MPL filter was 15% compared to the reference system at matching scan time, and the spatial resolution was higher. The dose of the PAL-filtered system was found to be 20% lower than for the reference system at equal scan time and resolution, and only 20% higher than for a monochromatic beam. An investigation of some practical issues remains, including the feasibility of brilliant-enough x-ray sources and manufacturing of a polymer PAL.
Ämnesord
- 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)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (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)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
Nyckelord
- x-ray imaging
- mammography
- x-ray optics
- multiprism lens
- prism-array lens
- energy filtering
- radiation dose
- spatial resolution
- exposure time
- Other engineering physics
- Övrig teknisk fysik
- Optical physics
- Optisk fysik
- Radiological research
- Radiologisk forskning
- Medical engineering
- Medicinsk teknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas