Thank you for your great video! Your explanations helped me a lot😀😀

I didn't get accepted this year for the program, but im definitely applying next year. Your videos are definitely amazing though.

@RockTheRegistry

3 жыл бұрын

That's the right way to handle it! Most programs reward folks for that kind of dedication. I know mine does.

Hi, I had a question regarding blurry images. If the object were very close to the xray but far away from the image sensor, would there be a limit where the image becomes blurry? For example, if I were to shine a torch at a wall and place my finger against the wall, the shadow of my finger is very sharp. But if I placed my finger close to the torch my finger's shadow becomes blurry. Does this effect also occur with xray imaging?

@RockTheRegistry

2 жыл бұрын

Yes, the exact same thing happens in x-ray. The technical term is penumbra (or unsharpness).

😂😂 okay you deserve like and comment

why we use graphite in rotating anode x ray tubes? a. for great inertia B. Heat capacity

@RockTheRegistry

3 жыл бұрын

I'm not sure I understand the question. Regardless, graphite is a poor heat conductor. According to Carroll, high-speed x-ray tubes may include graphite bc it's lightweight. This makes it easier to begin anode rotation.

@adityasarswa

3 жыл бұрын

Thank you so much. .i got it

what's the difference between SOD and SSD? do you only use SSD when the object is a person?

@RockTheRegistry

10 ай бұрын

Sure yeah. Source to skin distance is often used in radiation therapy in calculating skin exposure and bragg peak. For the purposes of magnification calcs in radiography, SOD is generally used.

What happens when i decrease the tube to detector distance? Do i get a smaller field of view better resolution? I don't understand the effect of the Tube to detector distance and what happens if i increase and decrease it. I just wish that you could help me with that ;_;

@benstolemyname

Жыл бұрын

Great question. Decreasing SID tends to decrease resolution due to increased image blur. If no changes are made in collimation, the field will decrease in size.

@darkgreen5682

Жыл бұрын

@@benstolemyname Thank you so much for taking your time and answering my question ☺ Have a beautiful day sir!

I'm looking at distortion of curve size on Scoliosis x-rays . My thinking is the bigger the curve is in reality (further away from the centre line), the bigger it's distortion will be n the X-ray film I need to know what the standard SID, SOD and OID is for fixed hospital X-ray set ups . Does anyone know ?

@RockTheRegistry

11 ай бұрын

I'd use Merrill's Atlas for your reference on SID. My guess is 72" (180cm). SOD and OID vary significantly due to patient factors.

@DamienMearns

11 ай бұрын

@@RockTheRegistry thanks

Effect of SID on Image Density?

@NaNoWriBros

8 ай бұрын

Help me understand the question... in digital imaging image density (aka brightness) and contrast are primarily controlled by the computer. Are you asking about the relationship between OID and exposure at the image receptor?

Hi can I know what is the factor of SID ??

@RockTheRegistry

3 жыл бұрын

Hi, I don't think I understand the question. What do you mean by the factor of SID?

@d_shmoney6611

3 жыл бұрын

Do you mean MF = SID/SOD?

Hi, I don't know why I'm having such a hard time understanding SID,OID,SOD, is there any easier way for me to understand. Thank you in advance! :(

@missunderstood543

2 жыл бұрын

Hi, if you understand it now, could you explain it to me. I too am having a hard time understanding.

For solving MF, the equation is MF=SID/SOD. If the question only gives me my SID (110 SID), and no SOD. How do I determine the MF? Is the question just missing information!?

@bhsualliedhealth603

2 жыл бұрын

Possibly... does it give an OID? If so the SOD = SID - OID

You didn’t explain anything