Comptoneffekt, parbildning och annihilation (Impuls2 s.258-263)

Comptoneffekt, parbildning och annihilation (Impuls2 s.258-263)

Author: Håkan Nygård
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

28 Sophia partners guarantee credit transfer.

263 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 25 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Hur kan ljus/fotoner absorberas i materia?

Om du belyser materia med ljus/fotoner kan dessa fotoner växelverka med materian på olika sätt.

1) Fotonen kan avge hela sin energi till materian och "knuffa" loss en elektron. Fenomenet kallas fotoelektrisk effekt.

2)  Fotonen kan avge delar av sin energi till en elektron. Fenomenet kallas comptoneffekt.

3) Fotonen kan avge hela sin energi och av energin bildas nya partiklar. Fenomenet kallas parbildning.



Absorption av fotoner

Full Screen