Test 6

Question 1 of 28

1

CR has both indirect and direct systems

Select one of the following:

True
False

Explanation

Question 2 of 28

1

The PSP is painted onto the SPS

Select one of the following:

True
False

Explanation

Question 3 of 28

1

Select from the dropdown lists to complete the text.

( Europium, Fluorohalide ): Keeps the electrons out of the holes
( Fluorohalide, Europium ): Holds the electrons and keeps them from going back into the hole

Explanation

Question 4 of 28

1

When electrons drop back into the "holes," they release energy in the form of light

Select one of the following:

True
False

Explanation

Question 5 of 28

1

The PSP can only keep the electrons out of the "holes" for what amount before its lost

Select one of the following:

25% / 4 hours
25% / 8 hours
15% / 2 hours
15% / 5 hours

Explanation

Question 6 of 28

1

Select from the dropdown lists to complete the text.

3 components to a CR reader
1st component: ( motor/transport system, optical system, computer system )
2nd component: ( optical system, motor/transport system, computer system )
3rd component: ( computer system, motor/transport system, optical system )

Explanation

Question 7 of 28

1

When does the SPS get scanned?

Select one of the following:

1st component
2nd component
3rd component

Explanation

Question 8 of 28

1

Select from the dropdown lists to complete the text.

( 1, 3, 4, 6 ). Scans SPS with laser
( 8, 7, 2, 5 ). Channels to ADC
( 2, 3, 6, 7 ). Light is released from phosphor
( 6, 8, 1, 3 ). PMT or CCD changes light to electrons
( 4, 3, 5, 2 ). Filter takes out any laser light
( 3, 8, 7, 1 ). Optical instrument detects reflected light
( 7, 5, 2, 8 ). Light detected and converted to electrical signals
( 5, 3, 6, 7 ). Sends to photodetector

Explanation

Question 9 of 28

1

Forming and buffering of an image happens during what component?

Select one of the following:

1st component
2nd component
3rd component

Explanation

Question 10 of 28

1

The more bits/pixel, the better the system can produce an image

Select one of the following:

True
False

Explanation

Question 11 of 28

1

Select from the dropdown list to complete the text.

The ( lower, higher ) the exposure, the higher the image noise

Explanation

Question 12 of 28

1

Select from the dropdown lists to complete the text.

Low kVp gives a ( wide, narrow ) histogram and a high kVp gives a ( narrow, wide ) histogram

Explanation

Question 13 of 28

1

CR and DR favor what type of exposure?

Select one of the following:

Over exposed
Under exposed

Explanation

Question 14 of 28

1

Select from the dropdown lists to complete the text.

( Direct, Indirect ): x-ray --> electrical signal
( Indirect, Direct ): x-ray --> light --> electrical signal

Explanation

Question 15 of 28

1

Amorphous-Selenium (a-Se) is a phosphor

Select one of the following:

True
False

Explanation

Question 16 of 28

1

Select from the dropdown lists to complete the text.

( Indirect, Direct ): a-Si (amorphous-Silicon)
( Direct, Indirect ): a-Se (amorphous-Selenium)

Explanation

Question 17 of 28

1

What part of the TFT will break if dropped?

Select one of the following:

Semiconductor
Dielectric
Substrate

Explanation

Question 18 of 28

1

DR indirect system has both CCD/EMCCD and CMOS

Select one of the following:

True
False

Explanation

Question 19 of 28

1

Select from the dropdown lists to complete the text.

( Photodiode, Monochromatic, Optical filter, Fiber optics, Tomosynthesis ): Photodetector which turns light into electrons; moves electrons in one direction
( Monochromatic, Optical filter, Fiber optics, Tomosynthesis, Photodiode ): Having one color
( Optical filter, Fiber optics, Tomosynthesis, Photodiode, Monochromatic ): Device that only lets certain light frequencies through
( Fiber optics, Tomosynthesis, Photodiode, Monochromatic, Optical filter ): Filaments or strands of material that conduct light
( Tomosynthesis, Photodiode, Monochromatic, Optical filter, Fiber optics ): Radiographic tomography with digital imaging capability

Explanation

Question 20 of 28

1

A specialized tube is needed for digital fluoroscopy

Select one of the following:

True
False

Explanation

Question 21 of 28

1

Select from the dropdown list to complete the text.

During pulse progressive, the longer the beam stays on, the ( longer, shorter ) the beams stays off

Explanation

Question 22 of 28

1

Select from the dropdown lists to complete the text.

( Interrogation time, Extinction time ): The time it takes the generator to get up to the mA and kVp setting
( Extinction time, Interrogation time ): The time it takes to turn everything off

Explanation

Question 23 of 28

1

What is the simplest form of subtraction?

Select one of the following:

Temporal
Matched filtering
Dual energy
Roadmapping

Explanation

Question 24 of 28

1

Which of the following uses mask mode subtraction?

Select one of the following:

Temporal
Hybrid
Pixel shifting
Recursive filtering

Explanation

Question 25 of 28

1

Which type of subtraction used time interval difference (TID)

Select one of the following:

Temporal
Matched filtering
Roadmapping
Hybrid

Explanation

Question 26 of 28

1

Which of the following is CM images stacked and then subtracted?

Select one of the following:

Matched filtering
Pixel shifting
Dual energy
Recursive filtering

Explanation

Question 27 of 28

1

Select from the dropdown lists to complete the text.

Recursive filtering is ( matched filtering, dual energy, hybrid, pixel shifting ) and ( TID, mask mode subtraction, roadmapping, masking ) combined

Explanation

Question 28 of 28

1

Select from the dropdown lists to complete the text.

Hybrid subtraction is a combination of ( temporal, matched filtering, pixel shifting, TID ) and ( dual energy, recursive filtering, TID, pixel shifting ) techniques

	Created by Korie Hi about 7 years ago

test6

Question 1 of 28

CR has both indirect and direct systems

Select one of the following:

Explanation

Question 2 of 28

The PSP is painted onto the SPS

Select one of the following:

Explanation

Question 3 of 28

Select from the dropdown lists to complete the text.

Europium Fluorohalide( Europium, Fluorohalide ): Keeps the electrons out of the holes Fluorohalide Europium( Fluorohalide, Europium ): Holds the electrons and keeps them from going back into the hole

Explanation

Question 4 of 28

When electrons drop back into the "holes," they release energy in the form of light

Select one of the following:

Explanation

Question 5 of 28

The PSP can only keep the electrons out of the "holes" for what amount before its lost

Select one of the following:

Explanation

Question 6 of 28

Select from the dropdown lists to complete the text.

Explanation

Question 7 of 28

When does the SPS get scanned?

Select one of the following:

Explanation

Question 8 of 28

Select from the dropdown lists to complete the text.

Explanation

Question 9 of 28

Forming and buffering of an image happens during what component?

Select one of the following:

Explanation

Question 10 of 28

The more bits/pixel, the better the system can produce an image

Select one of the following:

Explanation

Question 11 of 28

Select from the dropdown list to complete the text.

The lower higher( lower, higher ) the exposure, the higher the image noise

Explanation

Question 12 of 28

Select from the dropdown lists to complete the text.

Low kVp gives a wide narrow( wide, narrow ) histogram and a high kVp gives a narrow wide( narrow, wide ) histogram

Explanation

Question 13 of 28

CR and DR favor what type of exposure?

Select one of the following:

Explanation

Question 14 of 28

Select from the dropdown lists to complete the text.

Direct Indirect( Direct, Indirect ): x-ray --> electrical signal Indirect Direct( Indirect, Direct ): x-ray --> light --> electrical signal

Explanation

Question 15 of 28

Amorphous-Selenium (a-Se) is a phosphor

Select one of the following:

Explanation

Question 16 of 28

Select from the dropdown lists to complete the text.

Indirect Direct( Indirect, Direct ): a-Si (amorphous-Silicon) Direct Indirect( Direct, Indirect ): a-Se (amorphous-Selenium)

Explanation

Question 17 of 28

What part of the TFT will break if dropped?

Select one of the following:

Explanation

Question 18 of 28

DR indirect system has both CCD/EMCCD and CMOS

Select one of the following:

Explanation

Question 19 of 28

Select from the dropdown lists to complete the text.

Explanation

Question 20 of 28

A specialized tube is needed for digital fluoroscopy

Select one of the following:

Explanation

Question 21 of 28

( Europium, Fluorohalide ): Keeps the electrons out of the holes
( Fluorohalide, Europium ): Holds the electrons and keeps them from going back into the hole

The ( lower, higher ) the exposure, the higher the image noise

Low kVp gives a ( wide, narrow ) histogram and a high kVp gives a ( narrow, wide ) histogram

( Direct, Indirect ): x-ray --> electrical signal
( Indirect, Direct ): x-ray --> light --> electrical signal

( Indirect, Direct ): a-Si (amorphous-Silicon)
( Direct, Indirect ): a-Se (amorphous-Selenium)

During pulse progressive, the longer the beam stays on, the ( longer, shorter ) the beams stays off

( Interrogation time, Extinction time ): The time it takes the generator to get up to the mA and kVp setting
( Extinction time, Interrogation time ): The time it takes to turn everything off

Recursive filtering is ( matched filtering, dual energy, hybrid, pixel shifting ) and ( TID, mask mode subtraction, roadmapping, masking ) combined

Hybrid subtraction is a combination of ( temporal, matched filtering, pixel shifting, TID ) and ( dual energy, recursive filtering, TID, pixel shifting ) techniques