X-ray detector equipment with semiconductor sensor

This circuit claims to be able to detect 60keV photons:

I think that it may not be suitable for detecting high dose rates like you would find with an X-ray tube.

Chris

Recently, i had some X-rays taken, 50 KEV and the imaging plate was a semiconductor (array?) with very good resolution - as good as film.

Robert Baer wrote in news:46cb5400 snipped-for-privacy@newsfeed.slurp.net:

it was probably coated with a phosphor,and the silicon just reads the light emitted from the phosphor when the Xrays strike it.

Le Wed, 22 Aug 2007 13:24:42 +0000, Jim Yanik a écrit:

Yup, except this almost surely isn't phosphor. I've done some interesting consulting for this product line

Fred Bartoli wrote in news:46cc95c1$0$432$ snipped-for-privacy@news.free.fr:

Well,that would BE one kind of phosphor. I did say "a phosphor". 8-) Just an emissive coating,usually made from rare earth elements,like TV sets use.You would select for best wavelength that the semiconductor is most sensitive to,probably shortwave IR)