Design and characterization of large area position sensitive radiation detectors
Hietanen, Iiro (2012-11-23)
Väitöskirja
Hietanen, Iiro
23.11.2012
Lappeenranta University of Technology
Acta Universitatis Lappeenrantaensis
Julkaisun pysyvä osoite on
https://urn.fi/URN:ISBN:978-952-265-319-2
https://urn.fi/URN:ISBN:978-952-265-319-2
Tiivistelmä
Planar, large area, position sensitive silicon detectors are widely utilized in high energy
physics research and in medical, computed tomography (CT). This thesis describes
author's research work relating to development of such detector components. The key
motivation and objective for the research work has been the development of novel,
position sensitive detectors improving the performance of the instruments they are
intended for.
Silicon strip detectors are the key components of barrel-shaped tracking instruments
which are typically the innermost structures of high energy physics experimental
stations. Particle colliders such as the former LEP collider or present LHC produce
particle collisions and the silicon strip detector based trackers locate the trajectories of
particles emanating from such collisions.
Medical CT has become a regular part of everyday medical care in all developed
countries. CT scanning enables x-ray imaging of all parts of the human body with an
outstanding structural resolution and contrast. Brain, chest and abdomen slice images
with a resolution of 0.5 mm are possible and latest CT machines are able to image
whole human heart between heart beats.
The two application areas are presented shortly and the radiation detection properties of
planar silicon detectors are discussed. Fabrication methods and preamplifier electronics
of the planar detectors are presented.
Designs of the developed, large area silicon detectors are presented and measurement
results of the key operating parameters are discussed.
Static and dynamic performance of the developed silicon strip detectors are shown to be
very satisfactory for experimental physics applications. Results relating to the
developed, novel CT detector chips are found to be very promising for further
development and all key performance goals are met.
physics research and in medical, computed tomography (CT). This thesis describes
author's research work relating to development of such detector components. The key
motivation and objective for the research work has been the development of novel,
position sensitive detectors improving the performance of the instruments they are
intended for.
Silicon strip detectors are the key components of barrel-shaped tracking instruments
which are typically the innermost structures of high energy physics experimental
stations. Particle colliders such as the former LEP collider or present LHC produce
particle collisions and the silicon strip detector based trackers locate the trajectories of
particles emanating from such collisions.
Medical CT has become a regular part of everyday medical care in all developed
countries. CT scanning enables x-ray imaging of all parts of the human body with an
outstanding structural resolution and contrast. Brain, chest and abdomen slice images
with a resolution of 0.5 mm are possible and latest CT machines are able to image
whole human heart between heart beats.
The two application areas are presented shortly and the radiation detection properties of
planar silicon detectors are discussed. Fabrication methods and preamplifier electronics
of the planar detectors are presented.
Designs of the developed, large area silicon detectors are presented and measurement
results of the key operating parameters are discussed.
Static and dynamic performance of the developed silicon strip detectors are shown to be
very satisfactory for experimental physics applications. Results relating to the
developed, novel CT detector chips are found to be very promising for further
development and all key performance goals are met.
Kokoelmat
- Väitöskirjat [1036]