Pages in this set

Page 1

Preview of page 1
Alice Smart




G485 long essay question mark points
Medical questions
MRI
Protons have spin
Precess about the magnetic field produced by a strong electromagnet at a larmor
frequency
Transmitting coil produces a radio frequency equal to the larmor frequency
Protons resonate and flip to a higher energy state
When they…

Page 2

Preview of page 2
Alice Smart



Collimator ­ vertical tubes in lead that allow only parallel gamma photos to travel up
them, gamma photos not emitted at the desired point are absorbed by the lead this
makes the image sharper
Scintillator ­ contains fluorescent material that emits light photon when struck by a
gamma…

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all resources »