Materials transparent to x-rays?

Hi mike

Can I suggest a carbon fibre reinforced epoxy. This can be made robust enough to support your castings, but thin enough not to obscure any defects and may be even transparent depending upon your x-ray energy.

Hope this helps

Fred

Glass is mostly transparen at "X" ray.

Aerogel is about as transparent to x-rays as anything you'll find, and it's strong:

Timber-Bamboo-Plastic would be transparent(or almost).

Why not 3 or4 delicate Steel pins--they will be definitely opaque posts.

You know these are there for sure. So no ambiguity due to these.

Ceramicshield

ceramiccementcorp.com

Carbon Fiber would not be a good choice for most X-Ray applications - there are numerous examples of medical imaging applications which utilize either glass or quartz fiber re-inforced composites. Another option might also be Lexan.

Obviously you have no experience with radiography... contact a NondestructiveTest (NDT) company that does radiography, and have them develop the full procedure... including fixture design. Radiographic interpretation is not like looking for a surface crack or a bad finish, it takes training and experience.

With all do respect, I agree with your response, but at the same time it bothers me. We do use outside consultants, but I don't think that relieves us of our responsibility to learn things for ourselves to make informed decisions about what they are telling us.

From my experience, a lot of consultants aren't very creative or concerned with the big picture. They simply want to achieve the measurables for the project and get paid. As long as it works adequately, they don't have to live with the results or be concerned about the next steps or how to leverage the benefits of the project to other areas.

Thanks,
Mike