X-rays were discovered on what date & by who

X-rays are classified as what type of radiation

X-rays also act like what 2 things

Roentgen conducted his experiment through a glass low vacuum tube called

Roentgen noticed on Nov. 8 that the electrical glow from cathode rays came from what

Roentgen noticed a faint glow coming from a certain material of paper called

What is the instantaneous production of light resulting from x-rays

the 1st x-ray known was what

Roentgen called his discovery x-rays (x) meaning

Wavelength is measured in what

Frequency is measured in what

Wavelength & Frequency are

Frequency represents

in what year did they realize x-rays can cause biologic damage (erythema)

Energy is

the electrical energy applied to an x-ray tube comes out with what 2 things

Electromagnetic Radiation is radiation that has both

Wavelength represents

Photon is

Photons are measured in

Properties of X-rays (13)

ALARA means

Was the x-ray discovery accidental (T/F)

our goal as x-ray technologists is to

we want the x-rays to be optimal because

with patient dose we want our x-rays to have the

erythema is

the x-ray tubes are now in metal housing why

the Crooke's Tube is made of

Law of Conservation of Energy means

Penetration is

low penetration has

high penetration has

every x-ray is the same (T/F)

when x-rays interact with matter that act more like what

2 ways you can prevent SCATTER:

you can remove scatter 100% (T/F)

scatter is apart of x-rays (T/F)

higher the mAs , higher the

best combo for technique

3 fundamentals for RADIATION PROTECTION:

collimating to the part doesn't eliminates unnecessary radiation and protects the patient (T/F)

what is mostly caused by lots of absorptions

certain parts of your body aren't going to absorb more radiation than others (T/F)

as a student you can't hold a patient (T/F)

what is the most important part because that's where x-rays are produced

Radiographers must understand the operation of the tube why

is the negatively charged electrode with 1 cord

cathode contains the

is a coiled tungsten wire, which is the source of electrons during X-ray production (small & large)

only one filament is energized at one time during x-ray production (T/F)

is made of nickel and nearly surrounds the filament

purpose of the focusing cup

is the positively charged electrode with 2 cords

anode has a

is made of tungsten/rhenium alloy that abruptly decelerates and stops electrons in the tube current

rotating anodes rotate at a set speed from

most of the energy produced in the x-ray tube is

made of copper is rigidly connected to the target through the anode stem, causing the target to rapidly rotate during xray production

is made of copper, supporting area of the target

is an electric motor that turns the rotor at a very high speed during x-ray production process called electromagnetic induction

rotating anodes can't withstand high heat loads (T/F)

refers to the boiling off of electrons from the filament (more mA you give more of this)

the electrons liberated from the filament during thermionic emission form a cloud around the filament called

refers to the tendency of the space charge to prevent more electrons to be boiled off of the filament

refers to the flow of electrons from cathode to anode and is measured in units called milliamperes (mA)

electrons flow only in one direction from cathode to anode (T/F)

main purpose of the tube housing is

anode's purpose