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Any Ideas Anyone????

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Hey all,

 

would be a massive help if anyone could shed any light on the following question? i am trying to revise for my finals but cant seem to put my finger on the answer to this:

 

Describe 3 ways in which x rays and gamma rays interact with matter - and what determines the minimum photon energy required for process?

 

cheers!!!!

 

rob xx

  • 2 weeks later...

"the minimum photon energy required for process?" i think this is the work function? (someone please correct me if i am wrong)...

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