Jump to content
Tutorat Associatif Toulousain
[PARRAINAGE L.AS]
'[TATOUCAPTE (PASS) RECHERCHE PHARMA]'
[GUIDE PARCOURSUP]
[EB PASS S2]

QCM 10 B

KASHLO33

By KASHLO33
in UE3 - Biophysique

 Share
Go to solution Solved by lysopaïne,

Recommended Posts

  • Responsable Matière
  • Solution
lysopaïne tic tat

lysopaïne

Posted
  • Responsable Matière
  • Solution
Posted

Tu as 6 cm de plomb soit l'équivalent de 3 CDA ( car CDA plomb = 2cm). Donc le faisceau de photons est divisé par 2 à la puissance 3 donc par 8. 

Donc sur 2000 photons, seuls 2000/8 = 250 vont passer à travers le plomb.
Donc 2000 - 250 = 1750 sont arrêtés.

 

C'est bon pour toi?

 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...