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Anonymous Poster

NDT Gamma-Ray vs X-Ray

07/29/2010 11:02 AM

I understand that gamma ray has higher frequency and energy than x-ray, and could penertrate more depth. But why does x-ray cost more than gamma ray for NDT service?
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JohnDG
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#1

Re: NDT gamma-ray vs x-ray

07/29/2010 11:13 AM

I imagine it's because to generate X-rays you need a very expensive HV power supply and a very expensive X-ray tube, but for gammas you only need (in simple terms) a lump of the appropriate nuclide in a lead pot.

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Re: NDT gamma-ray vs x-ray

07/29/2010 12:01 PM

I like this answer!

Milo

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