Recent content by lamadwp

Thank you! Thank you for your responses, everyone! TSny, those resources were incredibly helpful, thank you!

Yes, Series 2 is with the first plate of lead (~6mm), Series 3 is with about 12mm of lead shielding, etc. Series 1 is the source without any shielding. We did not check the plates without the source :T Thanks for the information about Compton electrons--I'll look it up some more, but might...

Hi! In my lab class, we are using a photomultiplier to examine gamma ray emission lines and determine absorption coefficients of different radioactive materials. Homework Statement As we test for absorption (by layering on metals, incrementally increasing the thickness), we consider spectral...