24.1e X-Ray Attenuation and Absorption | A2 Medical Physics | Cambridge A Level Physics

What happens to X-Ray intensity when it passes through objects?

00:00 Defining attenuation
01:55 Incident and transmitted/emergent intensity
03:54 Graph - Exponential decrease
05:04 Intensity attenuation equation
07:29 Linear absorption/attenuation coefficient
11:52 Half-value thickness derivation
17:52 Attenuation equation for collimated beam only

#A2MedicalPhysics Applications Playlist:

#A2quantumPhysics Playlist:

Practice Past Year Questions
*starred Q's are in example videos
MJ12 P42 Q10 (pg45) X-ray of finger.
MJ13 P41 Q10 (pg47) Sharpness & Intensity ratio
MJ13 P42 Q11 (pg47) Attenuation & Intensity ratio
MJ15 P41 Q11 (pg50) Blood vs Muscle Attenuation
ON15 P41 Q10 (pg50) Bone vs Muscle
ON15 P43 Q11 (pg51) Intensity Ratio & Contrast*
MJ17 P41 Q10 (pg53) Intensity Ratio
FM18 P42 Q12 (pg54) Metal Intensity Ratio & decibels*
MJ18 P41 Q12 (pg54) Thumb X-Ray*
FM20 P42 Q11 (pg55) Attenuation and Image

Tuition/Tutoring inquiries:

#CambridgeALevelPhysics

[pradiptaroy]

Everytime you saying MEUUUU.... I am with all of my power of voice saying and my family members be like, what's going on-_-
Btw, thank you for the lecture, was very helpful!

[spirall]

your mew is so cute; it's like there's a cat in my room. love it. tysm for your hard work.

[auraezahra]

you had wayy too much fun with MEUUUU😂😂😂💙💙💙

[mohammadsk]

you're amazing! thank you so much

[advaithkumar]

if the area does change though, is there a calculus variant of this equation?

[mubeenfatima]

I love her but this drilled a hole in my head in this video 😄

[manusamy]

IT IS SOOO IRITATING TO HEAR YOUR MEW SOUND . PLEASE STOP IT.