Xray Phys (1)

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Xray Physics & Principles
Study online at quizlet.com/_136swu
1.

after the tone from the
control terminated, does the
screen continue to fluoresce?

no

2.

are X-rays highly penetrating?
invisible?

yes
yes

3.

does noise come from the
tube after the tone stopped?

yes, the rotor continued to
rotate

15.

what is the control
booth/door shielded with?

lead

4.

does the light field match the
X-ray beam? what principle is
this an example of?

yes

16.

what is used to absorb
radiation?

lead

xray travel in a straight line
and diverge from the point
of origin. X-rays have similar
properties to light

17.

when do X-rays produce
scatter radiation?

when they interact with
matter

18.

where are X-rays produced?

inside the X-ray tube

19.

who's responsibility is it to
keep the radiation low?

operator of the X-ray machine

14.

what is an X-ray collimator?
what is it used for?

lead shutters are moved to
restrict the area of exposure
best tool for reducing
radiation exposure to patient

during the exposure, can you
see into inside of the
phantom? what property
does this demonstrate?

yes
X-rays are highly
penetrating

20.

X-rays cause _______ of some
materials

fluorescence

6.

how fast to X-rays travel

speed of light

21.

7.

if the screen does not
fluoresce, was there any
radiation coming from the
tube after the tone stopped?

no

X-rays respond according to
______

inverse square law
decrease distance, increase
magnification

22.

X-rays travel __________ and
diverge from _____

in a straight line
their point of origin

8.

in early days of X-ray, what
often happened to the
patient?

they would get burned
possibility of electrocution

9.

is the intensity of
fluorescence of the screen
change when kVp was
increased?

yes

10.

T/F: Xray photons has a
specific energy

FALSE
they have different energies

11.

what does the radiographic
equipment consist of?

tube stand, tube &
collimator
grid holder or bucky
controls in the control booth

12.

what do you see on film that
was sitting near the
phantom? what principle
does this demonstrate?

burry image

what is a modern X-ray tube?

rotating anode radiographic
xray tube
leaded glass golds vacuum
in tube
anode rotated to cool tube

5.

13.

X-rays produce scatter
radiation. scatter radiation is
not divergent

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