Quiz
Test 6
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Perguntas do quiz (28)
1CR has both indirect and direct systems
- AVerdadeiro
- BFalso
2The PSP is painted onto the SPS
- AVerdadeiro
- BFalso
3[blank_start]Europium[blank_end]: Keeps the electrons out of the holes
[blank_start]Fluorohalide[blank_end]: Holds the electrons and keeps them from going back into the hole- AFluorohalide
- BEuropium
- CEuropium
- DFluorohalide
4When electrons drop back into the "holes," they release energy in the form of light
- AVerdadeiro
- BFalso
5The PSP can only keep the electrons out of the "holes" for what amount before its lost
- A25% / 4 hours
- B25% / 8 hours
- C15% / 2 hours
- D15% / 5 hours
63 components to a CR reader
1st component: [blank_start]motor/transport system[blank_end]
2nd component: [blank_start]optical system[blank_end]
3rd component: [blank_start]computer system[blank_end]- Amotor/transport system
- Boptical system
- Ccomputer system
- Doptical system
- Emotor/transport system
- Fcomputer system
- Gcomputer system
- Hmotor/transport system
- Ioptical system
7When does the SPS get scanned?
- A1st component
- B2nd component
- C3rd component
8[blank_start]1[blank_end]. Scans SPS with laser
[blank_start]8[blank_end]. Channels to ADC
[blank_start]2[blank_end]. Light is released from phosphor
[blank_start]6[blank_end]. PMT or CCD changes light to electrons
[blank_start]4[blank_end]. Filter takes out any laser light
[blank_start]3[blank_end]. Optical instrument detects reflected light
[blank_start]7[blank_end]. Light detected and converted to electrical signals
[blank_start]5[blank_end]. Sends to photodetector- A1
- B3
- C4
- D6
- E8
- F7
- G2
- H5
- I2
- J3
- K6
- L7
- M6
- N8
- O1
- P3
- Q4
- R3
- S5
- T2
- U3
- V8
- W7
- X1
- Y7
- Z5
- AA2
- AB8
- AC5
- AD3
- AE6
- AF7
9Forming and buffering of an image happens during what component?
- A1st component
- B2nd component
- C3rd component
10The more bits/pixel, the better the system can produce an image
- AVerdadeiro
- BFalso
11The [blank_start]lower[blank_end] the exposure, the higher the image noise
- Alower
- Bhigher
12Low kVp gives a [blank_start]wide[blank_end] histogram and a high kVp gives a [blank_start]narrow[blank_end] histogram
- Awide
- Bnarrow
- Cnarrow
- Dwide
13CR and DR favor what type of exposure?
- AOver exposed
- BUnder exposed
14[blank_start]Direct[blank_end]: x-ray --> electrical signal
[blank_start]Indirect[blank_end]: x-ray --> light --> electrical signal- ADirect
- BIndirect
- CIndirect
- DDirect
15Amorphous-Selenium (a-Se) is a phosphor
- AVerdadeiro
- BFalso
16[blank_start]Indirect[blank_end]: a-Si (amorphous-Silicon)
[blank_start]Direct[blank_end]: a-Se (amorphous-Selenium)- AIndirect
- BDirect
- CDirect
- DIndirect
17What part of the TFT will break if dropped?
- ASemiconductor
- BDielectric
- CSubstrate
18DR indirect system has both CCD/EMCCD and CMOS
- AVerdadeiro
- BFalso
19[blank_start]Photodiode[blank_end]: Photodetector which turns light into electrons; moves electrons in one direction
[blank_start]Monochromatic[blank_end]: Having one color
[blank_start]Optical filter[blank_end]: Device that only lets certain light frequencies through
[blank_start]Fiber optics[blank_end]: Filaments or strands of material that conduct light
[blank_start]Tomosynthesis[blank_end]: Radiographic tomography with digital imaging capability- APhotodiode
- BMonochromatic
- COptical filter
- DFiber optics
- ETomosynthesis
- FMonochromatic
- GOptical filter
- HFiber optics
- ITomosynthesis
- JPhotodiode
- KOptical filter
- LFiber optics
- MTomosynthesis
- NPhotodiode
- OMonochromatic
- PFiber optics
- QTomosynthesis
- RPhotodiode
- SMonochromatic
- TOptical filter
- UTomosynthesis
- VPhotodiode
- WMonochromatic
- XOptical filter
- YFiber optics
20A specialized tube is needed for digital fluoroscopy
- AVerdadeiro
- BFalso
21During pulse progressive, the longer the beam stays on, the [blank_start]longer[blank_end] the beams stays off
- Alonger
- Bshorter
22[blank_start]Interrogation time[blank_end]: The time it takes the generator to get up to the mA and kVp setting
[blank_start]Extinction time[blank_end]: The time it takes to turn everything off- AInterrogation time
- BExtinction time
- CExtinction time
- DInterrogation time
23What is the simplest form of subtraction?
- ATemporal
- BMatched filtering
- CDual energy
- DRoadmapping
24Which of the following uses mask mode subtraction?
- ATemporal
- BHybrid
- CPixel shifting
- DRecursive filtering
25Which type of subtraction used time interval difference (TID)
- ATemporal
- BMatched filtering
- CRoadmapping
- DHybrid
26Which of the following is CM images stacked and then subtracted?
- AMatched filtering
- BPixel shifting
- CDual energy
- DRecursive filtering
27Recursive filtering is [blank_start]matched filtering[blank_end] and [blank_start]TID[blank_end] combined
- Amatched filtering
- Bdual energy
- Chybrid
- Dpixel shifting
- ETID
- Fmask mode subtraction
- Groadmapping
- Hmasking
28Hybrid subtraction is a combination of [blank_start]temporal[blank_end] and [blank_start]dual energy[blank_end] techniques
- Atemporal
- Bmatched filtering
- Cpixel shifting
- DTID
- Edual energy
- Frecursive filtering
- GTID
- Hpixel shifting
Informações
- Descrição
- test6
- Autor
- Korie Hi
- Idioma
- English
- Visualizações
- 66
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