Ballistic impact events occur in microsecond time frame. Flash x-rays are usually not 3D and have a substantial reset time between images. Ideally, it would be most beneficial to have microsecond temporal resolution as well as 3D micron spatial resolution for a continuous interrogation of a millisecond or more. Tough requirement but something to dream for.
Dear Joe,
This is the same problem I have been dealing with for last two years and with the avilable equipments in our laboratory I think this is still an unsolved problem and will be happy to know if someone can help us.
Regards,
Hossein
Funding is often an important matter, if the money is not avaiable, this type of facility cannot be built.
The Laboratory for Ballistic Research of TNO (The Netherlands) has X-ray cinematography equipment and experience with high speed x-ray filming ballistic events. At this moment TNO is installing state-of-the-art X-ray source and imaging equipment and we are happy to work with third parties that want to use this rather unique piece of equipment. This would allow one to get up to 100 images with up to 500.000 fps time resolution. The X-ray source is very powerful and we aim for penetration of up to 100 mm (4 inches) of alumina ceramic tiles.
Earlier work with an older source provided images of projectile deformation in fabrics, as well as penetration in polymers and magnesium plates.
This is 2D-information only, however most of the normal impact processes can be considered axisymmetric and 2D-information is sufficient here.
For time resolved visualization of dynamic fracturing of ceramics during projectile impact we have another set-up that works up to 1.000.000 frams per second and shows timing and duration of several crack types in ceramic targets.
Once again, we welcome third parties to make use of our capabilities
- Badges
- Science topic
- Similar topics
- Organizational Psychology
- Training