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Presentatie over straling

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06-07-2025

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2024/2025

straling, natuurkunde

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Ioniserende
straling
Wat betekent ioniserend?

, • Elektromagnetische straling:
• UV, röntgen, gamma
 lichtsnelheid

• Kernstraling, de belangrijkste:
• Alpha
• Beta
• Gamma (=dus ook EM straling)
Ioniserende straling
Stralingsdeeltjes (fotonen, protonen, neutronen, heliumkernen, ele
positronen, ...) met energie > 10 eV zijn doorgaans ioniserend

Energie van straling wordt in de natuurkunde vaak gegeven in elekt
(eV), die om te zetten is naar Joule (J) via (BINAS 5):

Merk op: dit is hetzelfde
GETAL als de elementaire
lading in Coulomb
1 𝑒𝑉 =1,602 ∙ 10−19 𝐽

,Straling
Begrippen:
• Doordringend vermogen
• Ioniserend vermogen

• Absorptie
• Straling(senergie) ioniseert een atoom
• Belangrijk verschil tussen EM- en deeltjes- straling
• EM-straling: kansproces fotonen 1x botsen  halveringsdikte
• Deeltjes-straling: botst sowieso en verliest per keer wat energie
aan ionisatie van ander atoom  dracht
• Transmissie
• Straling wordt doorgelaten

, Elektromagnetische Straling

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Institution: Secondary school
Level: VWO / Gymnasium
Course: Natuurkunde
School year: 4

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Uploaded on: July 6, 2025
Number of pages: 40
Written in: 2024/2025
Type: PRESENTATION
Person: Unknown

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straling

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Presentatie over straling

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