RADIOLOGY PHYSICS FINAL EXAMS 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔benefits of rectification - ✔✔higher makes it more efficient so lower mAS = less ESE
✔✔films are made of - ✔✔base - holds emulsion
adhesive - on top of base
emulsion - gelatinous material with a suspension of photosensitive silver halide
supercoat - protects film
✔✔Gurney mott theory - ✔✔latent image
photon strikes emulsion and is absorbed by crystal
produces a physical change so as to release electrons which attrack silver
Ag(silver) atom is black
✔✔developing process - ✔✔process that supplies electrons that are used to develop a
latent image into a visible image. Temp at 68 - room temp
developer
rinse
fixer (2x develop time)
final wash (2x fixer time)
dry
✔✔how to decrease processing time - ✔✔increase temp
high chem concentration
higher drying temp
not rising
✔✔developing solution - ✔✔alkaline hydroquinone (Q) for blackening
Metol (MQ) for manual
Phenidone (PQ) for automatic, also has a hardener
✔✔fixer - ✔✔stops developing process
acidic
✔✔film fog causes - ✔✔light leak
unsealed dark room
storage bin door left open - exposed film ix 7x more sensitive to light
age of flim
contamination
storage temp
✔✔causes of too light of film - ✔✔low mAS - if you can see the bone outline
low kVp
low temp
, inverted grid
HYFOB - hold your finger on the button
✔✔legal film info - ✔✔pt identification #
pt name
age or DOB
gender
xray location
date taken
marked R/L, standing supine
✔✔flitration - ✔✔1 - inherent = glass, insulating oil, mirror, exit port
2 - added aluminum = 2.5mm in MN (absorbs low energy xrays decreasing ESE and
improves quality)
✔✔Name the parts of the atom - ✔✔Neutron proton electron
✔✔2 energy that orbiting electron possesses - ✔✔Binding and centripetal force which
are inversely related
✔✔Difference between xray and radiowaves - ✔✔
✔✔3 parts of EMS - ✔✔
✔✔Amperes control what in the tube? - ✔✔The amount of electrons boiled off
Measured in mA
✔✔Voltage controls what in the tube - ✔✔Measured in kV
Amount of force
✔✔3 interaction that occur in the tube when the exposure button is pushed -
✔✔Brenstrulum
Heat = 99%
Characteristic
✔✔Compute heat unites - ✔✔Time x kV x mA
✔✔How do you double the density - ✔✔Double the mAS
OR
increased kVp by 15%
✔✔remove an electron and what do you get? - ✔✔Ion
✔✔the electron in an inner shell of an atom has a high?
AND SOLUTIONS RATED A+
✔✔benefits of rectification - ✔✔higher makes it more efficient so lower mAS = less ESE
✔✔films are made of - ✔✔base - holds emulsion
adhesive - on top of base
emulsion - gelatinous material with a suspension of photosensitive silver halide
supercoat - protects film
✔✔Gurney mott theory - ✔✔latent image
photon strikes emulsion and is absorbed by crystal
produces a physical change so as to release electrons which attrack silver
Ag(silver) atom is black
✔✔developing process - ✔✔process that supplies electrons that are used to develop a
latent image into a visible image. Temp at 68 - room temp
developer
rinse
fixer (2x develop time)
final wash (2x fixer time)
dry
✔✔how to decrease processing time - ✔✔increase temp
high chem concentration
higher drying temp
not rising
✔✔developing solution - ✔✔alkaline hydroquinone (Q) for blackening
Metol (MQ) for manual
Phenidone (PQ) for automatic, also has a hardener
✔✔fixer - ✔✔stops developing process
acidic
✔✔film fog causes - ✔✔light leak
unsealed dark room
storage bin door left open - exposed film ix 7x more sensitive to light
age of flim
contamination
storage temp
✔✔causes of too light of film - ✔✔low mAS - if you can see the bone outline
low kVp
low temp
, inverted grid
HYFOB - hold your finger on the button
✔✔legal film info - ✔✔pt identification #
pt name
age or DOB
gender
xray location
date taken
marked R/L, standing supine
✔✔flitration - ✔✔1 - inherent = glass, insulating oil, mirror, exit port
2 - added aluminum = 2.5mm in MN (absorbs low energy xrays decreasing ESE and
improves quality)
✔✔Name the parts of the atom - ✔✔Neutron proton electron
✔✔2 energy that orbiting electron possesses - ✔✔Binding and centripetal force which
are inversely related
✔✔Difference between xray and radiowaves - ✔✔
✔✔3 parts of EMS - ✔✔
✔✔Amperes control what in the tube? - ✔✔The amount of electrons boiled off
Measured in mA
✔✔Voltage controls what in the tube - ✔✔Measured in kV
Amount of force
✔✔3 interaction that occur in the tube when the exposure button is pushed -
✔✔Brenstrulum
Heat = 99%
Characteristic
✔✔Compute heat unites - ✔✔Time x kV x mA
✔✔How do you double the density - ✔✔Double the mAS
OR
increased kVp by 15%
✔✔remove an electron and what do you get? - ✔✔Ion
✔✔the electron in an inner shell of an atom has a high?
