Page 25 - KFSHRC-RSO-Course
P. 25
iation Safety Officer Course Module 1.4 – Interaction of Radiation with Matter
PART 1
BASIC KNOWLEDGE
MODULE 1.4
INTERACTION OF RADIATION WITH MATTER
CONTENTS
OVERVIEW.................................................................................................... 1
LEARNING OBJECTIVES ............................................................................. 1
1. IONIZATION ........................................................................................... 2
1.1 Direct and Indirect Ionization ........................................................... 2
1.2 Strong, Moderate and Weak Ionization............................................ 3
2. EXCITATION .......................................................................................... 3
3. ALPHA INTERACTIONS ........................................................................ 3
4. BETA INTERACTIONS........................................................................... 4
4.1 Direct Ionization............................................................................... 4
4.2 Bremsstrahlung Production ............................................................. 4
SELF-CHECK 1 ............................................................................................. 5
5. GAMMA AND X-RAY INTERACTIONS .................................................. 6
5.1 The Photoelectric Effect................................................................... 7
5.2 Compton Scattering ......................................................................... 8
5.3 Pair Production ................................................................................ 9
5.4 Summary of Photon Interactions ..................................................... 9
SELF-CHECK 2 ........................................................................................... 11
6. NEUTRON INTERACTIONS ................................................................ 11
6.1 Elastic Scattering........................................................................... 11
6.2 Inelastic Scattering ........................................................................ 12
6.3 Neutron Capture ............................................................................ 13
6.4 Summary of Neutron Interactions .................................................. 14
SELF-CHECK 3 ........................................................................................... 14
7. SUMMARY OF THE INTERACTION OF RADIATION WITH MATTER 15
KEY POINTS ............................................................................................... 16
King Faisal Specialist Hospital and Research Centre – Biomedical Physics Department Page i
PART 1
BASIC KNOWLEDGE
MODULE 1.4
INTERACTION OF RADIATION WITH MATTER
CONTENTS
OVERVIEW.................................................................................................... 1
LEARNING OBJECTIVES ............................................................................. 1
1. IONIZATION ........................................................................................... 2
1.1 Direct and Indirect Ionization ........................................................... 2
1.2 Strong, Moderate and Weak Ionization............................................ 3
2. EXCITATION .......................................................................................... 3
3. ALPHA INTERACTIONS ........................................................................ 3
4. BETA INTERACTIONS........................................................................... 4
4.1 Direct Ionization............................................................................... 4
4.2 Bremsstrahlung Production ............................................................. 4
SELF-CHECK 1 ............................................................................................. 5
5. GAMMA AND X-RAY INTERACTIONS .................................................. 6
5.1 The Photoelectric Effect................................................................... 7
5.2 Compton Scattering ......................................................................... 8
5.3 Pair Production ................................................................................ 9
5.4 Summary of Photon Interactions ..................................................... 9
SELF-CHECK 2 ........................................................................................... 11
6. NEUTRON INTERACTIONS ................................................................ 11
6.1 Elastic Scattering........................................................................... 11
6.2 Inelastic Scattering ........................................................................ 12
6.3 Neutron Capture ............................................................................ 13
6.4 Summary of Neutron Interactions .................................................. 14
SELF-CHECK 3 ........................................................................................... 14
7. SUMMARY OF THE INTERACTION OF RADIATION WITH MATTER 15
KEY POINTS ............................................................................................... 16
King Faisal Specialist Hospital and Research Centre – Biomedical Physics Department Page i
