Ionizing
Radiation
Division
Study of Water Transport Phenomena in a Working Fuel Cell
The NIOF has a flexible aluminum optical table located between the neutron
guide monochromator and the neutron interferometer block house. Here a variety
of optical experiments may be set up which utilize monochromatic neutrons.
Among these experimental setups are radiography and tomography applications.
Here a sample is placed in the neutron beam directly in front of a neutron
scintillation screen. The neutrons which pass through the sample are absorbed
with some efficiency and converted to light. The scintillations are then
projected by a mirror/lens system onto a CCD camera where the image
accumulates, and is finally recorded by a computer after a set period of time.
This facility has available high resolution CCD cameras, which have a
resolution of 50 µm or greater for a 2.5 cm diameter area. A
second CCD system is also available and has a 200 µm resolution over
a 10 cm square area. If the sample is mounted on a rotation stage then a
tomogram of the sample can be recorded in order to 3-dimensionally reconstruct
the sample.
Facility
| Research
| Participants
| Contacts
Pages designed and maintained by the
Office of ECSED.
Inquiries or comments:
david.gilliam@nist.gov.
Online: November 1998