Aller au contenu principal
  • Paul Scherrer Institut PSI
  • PSI Research, Labs & User Services

Digital User Office

  • Digital User Office
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI)
Rechercher
Paul Scherrer Institut (PSI)

Hauptnavigation

  • Research at PSIOuvrir ce point de menu principal
    • Research Initiatives
    • Ethics and Research integrity
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • PSI-FELLOW
    • PSI Data Policy
  • Research Divisions and LabsOuvrir ce point de menu principal
    • Overview
    • Research with Neutrons and Muons
    • Photon Science
    • Energy and Environment
    • Nuclear Energy and Safety
    • Biology and Chemistry
    • Scientific Computing, Theory and Data
    • Large Research Facilities
  • Facilities and InstrumentsOuvrir ce point de menu principal
    • Overview
    • Large Research Facilities
    • Facilities
    • PSI Facility Newsletter
  • PSI User ServicesOuvrir ce point de menu principal
    • User Office
    • Methods at the PSI User Facilities
    • Proposals for beam time
    • Proposal Deadlines
    • Data Analysis Service (PSD)
    • EU support programmes
  • New ProjectsOuvrir ce point de menu principal
    • SLS 2.0
    • IMPACT
  • DE
  • EN
  • FR

Digital User Office (mobile)

  • Digital User Office

Vous êtes ici:

  1. PSI Home
  2. Labs & User Services
  3. NUM
  4. LNS
  5. NIAG
  6. What is Neutron Imaging ?
  7. Neutron Imaging Techniques and Methods
  8. Neutron Tomography

Navigation secondaire

Neutron Imaging and Applied Materials

  • People
  • What is Neutron Imaging ? Sous-menu élargi
    • Neutron Imaging Setup
    • Neutron Physics
      • Neutron Interaction with Matter
      • Comparison to X-ray
    • Neutron Imaging Techniques and Methods Sous-menu élargi
      • Neutron Imaging Detectors
      • Neutron Tomography
      • Dynamic Neutron Imaging
      • Advanced Neutron Imaging Techniques
  • Beamlines
  • Research and Development
  • Industrial Services
  • Gallery
    • Movies
    • Bronze Sculptures
  • Publications
  • News / Events
    • News Archive
  • Links

Info message

Ce contenu n'est pas disponible en français.

Neutron Tomography

Figure 10: Experimental setup for neutron tomography at NEUTRA
Figure 10: Experimental setup for neutron tomography at NEUTRA
Figure 11: Tomography data acquisition
Figure 11: Tomography data acquisition
Figure 12: Computer tomography reconstruction
Figure 12: Computer tomography reconstruction
Computed tomography is a method to acquire three dimensional information about the structure inside a sample. The method applies to neutron as well as the more known X-ray imaging. It uses radiographic projection images from many views to reconstruct the distribution of materials in the sample. Mostly, the projections are acquired with equiangular steps over either 180o or 360o to cover the whole sample. Figure 9 shows an experiment setup used for neutron tomography (NT). In contrast to medical imaging the samples is rotated instead of the beamline. The projection images are acquired using a combination of a scintillator to convert the neutrons to visible light and a CCD camera. The transform of the projection data into a three dimensional image is a computationally intensive task handled by special reconstruction software. During the reconstruction process, slices perpendicular to the rotation axis are produced. When these slices are stacked in a sequence they form a three-dimensional volume image of the sample. The reconstructed volume data can be visualized using three-dimensional rendering graphics software. Using such tools, regions can be segmented based on their attenuation coefficients and geometry. This can be used to reveal details inside the sample in three dimensions.

Figure 13: Visualization of 3D neutron tomography data of a horseflyzoom
Figure 13: Visualization of 3D neutron tomography data of a horsefly

Sidebar

Neutron Imaging Brochure

NI Brochure
En savoir plus


Download Flyer

Contact

Applied Materials Group
Paul Scherrer Institut
LNS WBBA/118
5232 Villigen PSI

Prof. Dr. Markus Strobl
Group leader

Phone: +41 56 310 5941
E-mail: markus.strobl@psi.ch

Secretary: R. Bercher
Phone: +41 56 310 3402
Fax: +41 56 310 3131
E-mail: renate.bercher@psi.ch
 

Additional Information

  • Research with neutrons, synchrotron light and muons
    More about the most important tools in PSI's research on the structure of matter.
  • Research with PSI's large-scale facilities
    The institute's main experimental facilities
top

Pied de page

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Suisse

Téléphone: +41 56 310 21 11
Téléfax: +41 56 310 21 99

Comment nous trouver 
Contact

Centre de visiteurs psi forum
Laboratoire élèves iLab (en allemand)
Centre de protonthérapie
Centre de Formation du PSI
PSI Guest House (en anglais)
PSI Gastronomie (en allemand)
psi forum shop

Service & Support

  • Annuaire
  • User Office
  • Accelerator Status
  • Publications du PSI
  • Fournisseurs
  • E-facture
  • Computing (en anglais)
  • Sicherheit (en allemand)

Carrière

  • Travailler au PSI
  • Offres d'emploi
  • Formation initiale et formation continue
  • Career Center
  • Formation professionnelle (en allemand)
  • Centre de Formation du PSI

Pour les médias

  • Le PSI en bref
  • Chiffres et faits
  • Le coin médias
  • Communiqués de presse
  • Réseaux sociaux

Suivez le PSI: Twitter (in English) LinkedIn Youtube Facebook Instagram Issuu RSS

Footer legal

  • Impressum
  • Conditions d'utilisation
  • Login éditeurs