LMRT Core Review
Study online at
https://quizlet.com/_35zrv0
1.restrict the XR beam to the clinical area of interest: As a professional
radiog- rapher, the practice of ALARA requires you to
2.prime: The factors that affect XR emission under the direct control of
the radiog- rapher are called_ factors
3.beam quality: Milliamperage-second (mAs) directly affects all of the
following EXCEPT
4.mA & filtration: The factors that directly affect XR quantity are
5.kVp & beam filtration: The factors that directly affect XR quality are
6.6.3 x 10(18): If 1 coulomb is equal to 6.3 x 10(18) electron charges,
how many electrons flow from cathode to anode 1 second
7.6.3 x 10(15): If 1 ampere equals a flow of 6.3 x 10(18) electrons per
second, how many electrons flow from cathode to anode in 1
milliampere?
8.increase 2-fold: As the mA doubles, the number of electrons flowing
from cath- ode to anode
9.XR beam quantity: The product of tube current 7 exposure time is equa
to
10.change the mAs from 15-21 mAs: In order to increase radiographic film
density by 40% the radiographer would
11.directly proportional: The relationship between mAs & exposure is
12.the reciprocity law: The reaction of a photographic film to light is
equal to the product of the intensity of the light and the duration of the
light exposure.
13.cause the electrons to travel faster from cathode to anode: Increasing
the kVp for an exposure will
14.greater energy: Increasing the energy of an incident electron will
result in the production of an XR photon with
15.radiographic film density: Kilovoltage is the primary controlling factor o
16.contrast: Adjustments in kVp should be used to control radiographic
17.kVp: XR beam penetrability is primarily controlled by
18.400 mA, 200 ms, 40" SID: All factor remaining constant, which of the
following set of exposure conditions would yield an image with
GREATEST radiographic film density
19.motion: The length of the exposure time (S) for a radiograph, is used
to primarily control
20.400 mA,0.110 sec, 80 kVp: A radiograph is taken 400 mA, 55 ms, 95
kVp. A second image could be taken to improve contrast at
21.attenuation: When an XR photon passes through matter, it
undergoes a process called
1/
7
, LMRT Core Review
Study online at
22.reduce in number:
https://quizlet.com/_35zrv0 During the process of attenuation, XR photons in th
beam
23.lead (Z=82): In which element are the inner-shell electrons more
tightly bound to the nucleus?
2/
7
Study online at
https://quizlet.com/_35zrv0
1.restrict the XR beam to the clinical area of interest: As a professional
radiog- rapher, the practice of ALARA requires you to
2.prime: The factors that affect XR emission under the direct control of
the radiog- rapher are called_ factors
3.beam quality: Milliamperage-second (mAs) directly affects all of the
following EXCEPT
4.mA & filtration: The factors that directly affect XR quantity are
5.kVp & beam filtration: The factors that directly affect XR quality are
6.6.3 x 10(18): If 1 coulomb is equal to 6.3 x 10(18) electron charges,
how many electrons flow from cathode to anode 1 second
7.6.3 x 10(15): If 1 ampere equals a flow of 6.3 x 10(18) electrons per
second, how many electrons flow from cathode to anode in 1
milliampere?
8.increase 2-fold: As the mA doubles, the number of electrons flowing
from cath- ode to anode
9.XR beam quantity: The product of tube current 7 exposure time is equa
to
10.change the mAs from 15-21 mAs: In order to increase radiographic film
density by 40% the radiographer would
11.directly proportional: The relationship between mAs & exposure is
12.the reciprocity law: The reaction of a photographic film to light is
equal to the product of the intensity of the light and the duration of the
light exposure.
13.cause the electrons to travel faster from cathode to anode: Increasing
the kVp for an exposure will
14.greater energy: Increasing the energy of an incident electron will
result in the production of an XR photon with
15.radiographic film density: Kilovoltage is the primary controlling factor o
16.contrast: Adjustments in kVp should be used to control radiographic
17.kVp: XR beam penetrability is primarily controlled by
18.400 mA, 200 ms, 40" SID: All factor remaining constant, which of the
following set of exposure conditions would yield an image with
GREATEST radiographic film density
19.motion: The length of the exposure time (S) for a radiograph, is used
to primarily control
20.400 mA,0.110 sec, 80 kVp: A radiograph is taken 400 mA, 55 ms, 95
kVp. A second image could be taken to improve contrast at
21.attenuation: When an XR photon passes through matter, it
undergoes a process called
1/
7
, LMRT Core Review
Study online at
22.reduce in number:
https://quizlet.com/_35zrv0 During the process of attenuation, XR photons in th
beam
23.lead (Z=82): In which element are the inner-shell electrons more
tightly bound to the nucleus?
2/
7
