ABSTRACT
A new facility for neutron tomography has been installed at the IEA-R1 nuclear research reactor of IPEN-CNEN/SP. A tomography can be obtained in 400 s and the spatial resolution in the image is 263 µm. The neutron dose per tomography, in the video camera used for image capture, is only 21 µSv, assures very few damages in its CCD sensor. Some selected objects were investigated and the obtained 3D images demonstrate the capability of the facility to investigate hydrogenous substances.
Subject(s)
Neutrons , Tomography, X-Ray Computed/instrumentation , Wood/chemistry , Animals , Brazil , Equipment Design , Explosive Agents/analysis , Hydrogen , Imaging, Three-Dimensional , Isoptera/metabolism , Radiation DosageABSTRACT
A neutron tomography (NT) facility was installed at the IEA-R1 nuclear research reactor of the Nuclear and Energy Research Institute IPEN-CNEN/SP. According to the determined operational characteristics, the time spent to obtain a complete tomography is 4,000s at a neutron flux of 1×10(6) ncm(-2)s(-1) and the best achievable spatial resolution in the image is 347 µm. The main objectives of this paper are to describe the facility as well as to demonstrate its potential to investigate ceramic objects from the Brazilian cultural heritage left by Indians.
