Question 1

It is recommended that kVp not be used to control beam quantity because:

Accepted Answer

A)   it affects scatter production
B)   it affects penetrability of the beam
C)   it is less predictable in how changing the kVp affects the image
D)   all of the aboveE) A) and D)
F) All of the above

Question 2

The x-axis for all emission spectra represents the:

Accepted Answer

A)   energy level of the photons
B)   number of photons
C)   HVL of the photons
D)   amount of transmitted radiationE) B) and C)
F) A) and B)

Question 3

The beam that is found leaving the collimator is called the:

Accepted Answer

A)   collimator beam
B)   remnant beam
C)   primary beam
D)   transmitted beamE) All of the above
F) C) and D)

Question 4

The process of a series of outer-shell electrons filling inner-shell vacancies right after the other is called:

Accepted Answer

A)   characteristic tumble
B)   characteristic x-rays
C)   characteristic sequence
D)   characteristic cascadeE) A) and B)
F) B) and C)

Question 5

The y-axis for all emission spectra represents the:

Accepted Answer

A)   energy level of the photons
B)   number of photons
C)   HVL of the photons
D)   penetrability of the radiationE) B) and C)
F) C) and D)

Question 6

Characteristic x-ray photons result:

Accepted Answer

A)   when an outer-shell electron is knocked out
B)   when an inner-shell electron is knocked out
C)   when outer-shell electrons fill the vacancy in an inner shell
D)   B and CE) B) and C)
F) A) and D)

Question 7

Filtration placed in the path of the x-ray beam:

Accepted Answer

A)   absorbs low-energy photons
B)   absorbs high-energy photons
C)   increases patient dose
D)   reduces the quantity of radiation by a factor of 2E) B) and C)
F) B) and D)

Question 8

If kVp is doubled,the quantity of radiation increases by a factor of:

Accepted Answer

A)   2
B)   3
C)   4
D)   8E) A) and B)
F) All of the above

Question 9

As the kVp increases:

Accepted Answer

A)   beam energy decreases
B)   beam energy increases
C)   beam penetrability increases
D)   B and CE) All of the above
F) None of the above

Question 10

If the kVp is changed from 30 kVp to 90 kVp,the quantity of radiation in the beam increases by a factor of:

Accepted Answer

A)   2
B)   3
C)   6
D)   9E) A) and B)
F) A) and C)

Question 11

To increase the quantity of radiation by adjusting the kVp to the same level as doubling the mAs,increase kVp by a factor of:

Accepted Answer

A)   2%
B)   5%
C)   15%
D)   25%E) A) and D)
F) All of the above

Question 12

Which of the following is the primary factor controlling quantity?

Accepted Answer

A)   kVp
B)   mAs
C)   distance
D)   filtrationE) All of the above
F) A) and D)

Question 13

The inverse square law describes the relationship between ____________ and beam intensity.

Accepted Answer

A)   kVp
B)   distance
C)   exposure timeD) B) and C)
E) A) and C)

Question 14

When the kVp is changed from 60 to 120,the discrete line on the x-ray emission spectrum shifts to the right.

Accepted Answer

A) True 
 B)False

Question 15

Changes along the x-axis of the x-ray emission spectrum reflect changes in the _________________ of the x-ray beam,whereas changes along the y-axis reflect changes in the ___________________ of the beam.

Accepted Answer

A)   quality;quantity
B)   quantity;quality
C)   quantity;quantity
D)   quality;qualityE) A) and B)
F) None of the above

Question 16

The total number of x-ray photons in a beam is referred to as the:

Accepted Answer

A)   x-ray quality
B)   x-ray number
C)   x-ray quantity
D)   x-ray beamE) None of the above
F) A) and B)

Question 17

Normal HVL of diagnostic x-ray beams is:

Accepted Answer

A)   1-2 mm Al
B)   3-5 mm Al
C)   6-10 mm Al
D)   15-25 mm AlE) B) and C)
F) A) and D)

Question 18

The stronger the attraction between the filament electron and the nucleus,the less energy the brems photon has.

Accepted Answer

A) True 
 B)False

Question 19

One HVL reduces the intensity of the x-ray beam to _______ of its original.

Accepted Answer

A)   one fourth
B)   one third
C)   one half
D)   two thirdsE) B) and C)
F) C) and D)

Question 20

When 65 kVp is set on the operating console,no K-characteristic radiation is produced.

Accepted Answer

A) True 
 B)False

Exam 6: X-Ray Production

The inverse square law describes the relationship between ____________ and beam intensity.

Correct AnswerverifiedShow Answer

Characteristic x-ray photons result:

Correct AnswerverifiedShow Answer

The total number of x-ray photons in a beam is referred to as the:

Correct AnswerverifiedShow Answer

Filtration placed in the path of the x-ray beam:

Correct AnswerverifiedShow Answer

The beam that is found leaving the collimator is called the:

Correct AnswerverifiedShow Answer

To increase the quantity of radiation by adjusting the kVp to the same level as doubling the mAs,increase kVp by a factor of:

Correct AnswerverifiedShow Answer

As the kVp increases:

Correct AnswerverifiedShow Answer

When the kVp is changed from 60 to 120,the discrete line on the x-ray emission spectrum shifts to the right.

Correct AnswerverifiedShow Answer

The x-axis for all emission spectra represents the:

Correct AnswerverifiedShow Answer

Changes along the x-axis of the x-ray emission spectrum reflect changes in the _________________ of the x-ray beam,whereas changes along the y-axis reflect changes in the ___________________ of the beam.

Correct AnswerverifiedShow Answer

The y-axis for all emission spectra represents the:

Correct AnswerverifiedShow Answer

One HVL reduces the intensity of the x-ray beam to _______ of its original.

Correct AnswerverifiedShow Answer

When 65 kVp is set on the operating console,no K-characteristic radiation is produced.

Correct AnswerverifiedShow Answer

Which of the following is the primary factor controlling quantity?

Correct AnswerverifiedShow Answer

If the kVp is changed from 30 kVp to 90 kVp,the quantity of radiation in the beam increases by a factor of:

Correct AnswerverifiedShow Answer

Normal HVL of diagnostic x-ray beams is:

Correct AnswerverifiedShow Answer

It is recommended that kVp not be used to control beam quantity because:

Correct AnswerverifiedShow Answer

The process of a series of outer-shell electrons filling inner-shell vacancies right after the other is called:

Correct AnswerverifiedShow Answer

If kVp is doubled,the quantity of radiation increases by a factor of:

Correct AnswerverifiedShow Answer

The stronger the attraction between the filament electron and the nucleus,the less energy the brems photon has.

Correct AnswerverifiedShow Answer

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Changes along the x-axis of the x-ray emission spectrum reflect changes in the _ of the x-ray beam,whereas changes along the y-axis reflect changes in the ___ of the beam.

Correct Answer
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