Dear Alesya,

- seems you use HPGe detector with the ~1ml well?

Really gamma-ray attenuation coefficients for all atoms and many molecules/mediums, first of all H2O, are given in numerous Radiation protection and Radiochemistry text- and hand -books. In your case, if a sample doesn’t contain essential mass of heavy elements [Z more 20] the sample is practically completely transparent for gammas with energy more 50 keV.

Cheers

Dear Sergey Shevchenko ,

Thank you for the response. We have a BE3830P, that looks a lot like 1ml from dimensions in the specification.

The books I scrolled through so far tend to give equations and and graphs one needs to solve to get an answer. In that way, one can get a very precise information for each particular sample type. But I'd rather had it more general but more transparent for a wide range of people looking it up - that is with words, similar to how you put it in your message.

At least, it's nice to have a confirmation from a knowledgeable person. And I'll give the books a better look.

Thank you!

Dear Alesya, as a follow up of the previous answer, please consider using a very easy application for computing attenuation of water and mean free paths at different energies.

You will find information here:

http://shape.ing.unibo.it/html/muplot.htm

Kind regards

Jorge

Dear Jorge,

Thank uou so much, will try it. Easy is exactly what I need :)

Alesya

Dear Alesya Maruk,

in addition to the link given by Jorge Eduardo Fernández you may also have a look at the NIST/XCOM page(s)*) for the acquisition of energy dependent x-ray optical parameters of the elements and compounds...

https://physics.nist.gov/PhysRefData/Xcom/html/xcom1.html

*) some hints for omitting handling errors (e.g. units and decimal points) are summarized in:

Presentation How to use XCOM

Best regards

G.M.

Thank you, Gerhard Martens!

This is both easy to use and refer to.

Great help, thanks again!