Half Value Layer (HVL) | X-ray physics | Radiology Physics Course #28

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Жыл бұрын

High yield radiology physics past paper questions with video answers
Perfect for testing yourself prior to your radiology physics exam 👇
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The half-value layer (HVL) is inversely proportional to the linear attenuation coefficient (LAC). The HVL acts as a proxy for beam quality/ beam penetrability. Here we will examine the relationship between the HVL and LAC as well as go through a short example explaining the negative exponential relationship between X-ray attenuation and distance travelled through a tissue.
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Not sure if the question banks are for you?
If you're here, you're likely studying for a radiology physics exam. I've spent the last few months collating past papers from multiple different countries selecting the most commonly asked questions. You'll be surprised how often questions repeat themselves!
The types of questions asked in FRCR, RANZCR AIT, ARRT, FC Rad Diag (SA), ABR qualifying Core Physics and MICR part 1 are surprisingly similar and the key concepts remain the same throughout. I've taken the most high-yield questions and answered them in video format so that I can take you through why certain answers are correct and others are not.
Happy studying,
Michael
#radiology #radres #FOAMrad #FOAMed

Пікірлер: 23

@fazaltahir4216 Жыл бұрын

Very nicely presented, excellent presentation. I wish 10 M subscribers for this channel

@radiologytutorials Жыл бұрын

Thank you so much 😀

@ThenarRetinaculum Жыл бұрын

Ive been going back and forth in my physics in medical imaging textbook still not fully grasping the key concepts, Sir your videos are literal godsent. Suddenly my textbooks starts to make sense. Thank you!

@radiologytutorials Жыл бұрын

I’m so glad. Feel like it was what I needed when I was struggling with my textbooks the first time round! Glad they’re helpful 🙂

@delowar5972 Жыл бұрын

Really awesome sir. Very easily explained

@radiologytutorials Жыл бұрын

Thank you 🙏🏻

@bmilano1580 9 ай бұрын

Thanks for the example!

@radiologytutorials 9 ай бұрын

Glad it was helpful!

@ruthanyango4032 Жыл бұрын

Brilliant explanation

@radiologytutorials Жыл бұрын

Thank you Ruth!

@nk0074 9 ай бұрын

Undoubtedly Best video lectures available for Radiology Students.

@radiologytutorials 9 ай бұрын

I'm so glad you think so 🥳

@Lifeof-a-shortgirl 3 ай бұрын

Thanks...

@harshchoudhary7836 Жыл бұрын

USG physics And MRI PHYSICS

@Starcraft2Raum 10 ай бұрын

So, let's say I bombard a 0,9cm thick layer of lead with 1meV, it's halved after those 0,9cm. Then to reach 25% of the initial photon energy, I'll need another 0,9cm of lead?

@radiologytutorials 10 ай бұрын

Exactly! (Assuming the beam is monoenergetic) 🙂