Neutron Radiography

Posted by Sina Ev Yemekleri | Tuesday, November 27, 2007 | | 1 comments »


Neutron radiography provides a very efficient tool for investigations in the field of non - destructive testing as well as for many applications in fundamental research. A neutron beam penetrating a specimen is attenuated by the sample material and detected by a two dimensional imaging device. The image contains information about material and structure inside the sample because neutrons are attenuated according to the basic law of radiation attenuation. Contrary to X – rays, neutrons are attenuated by some light materials, as i.e. hydrogen, boron and lithium but penetrate many heavy materials. Neutrons are able to distinguish between different isotopes and neutron radiography is an important tool for studies of radioactive materials.
At the Atominstitute der österreichischen Universitäten (ATI) neutron radiographic investigations are performed for more then 35 years. The detectors mainly used are converter / film assemblies. However, these detectors are limited regarding their sensitivity, dynamic range and linearity. Due to rapid development of detector and computer technology as well as deployments in the field of digital image processing, new technologies are nowadays available which have the potential to improve the performance of neutron radiographic investigations enormously. Therefore, the aim of this work is to identify and develop two and three dimensional digital image processing methods suitable for neutron radiographic and tomographic applications, and to implement and optimize them within data processing strategies.

1 comments

  1. Anonymous // February 8, 2008 at 1:32 PM  

    I am trying to identify industries that experience the highest amount of waste in the materials testing process and industries that generally have the highest environmental concerns when testing the quality/integrity of their materials.