Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

So it turns into Np, and electrons just falling into 'free new' levels and emmiting, right?

enter image description here

Give me a link where to read, please, if it's very easy to answer.

share|improve this question

2 Answers 2

up vote 0 down vote accepted

This is a complicated decay with many possible modes--there are one or more gamma associated with every alpha line (except, perhaps the highest energy one).

It is essentially impossible to compute the photon spectrum from first principles; they must be measured and doing so well is a delicate experiment.

share|improve this answer
    
Thank you! Can you say, what is the reason of 26.3 keV (Am gamma peak)? –  Alej Mar 6 '13 at 18:02
    
That's a prompt gamma in coincidence with the alpha decay. –  dmckee Mar 6 '13 at 18:06

241-Am emits several gamma rays, but 35.9% gamma rays will have 59.5412 keV energy that can be easily detected with a scintillation detector fitted with NaI (Tl) crystal.

The following Reference also provides various alpha energies from 241-Am.

Reference: WWW Table of Radioactive Isotopes http://ie.lbl.gov/toi/nuclide.asp?iZA=950241

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.