PACS FINAL EXAM QUESTIONS
AND ANSWERS (ALREADY
PASSED)
A system that uses scintillators hat convert x-rays to light and light to electric charge
and stores the charge in capacitors is known as a: - Answer- CMOS
A solid chemical element or compound doped with impurities that make it highly
conductive is known as a: - Answer- semiconductor
Most CMOS detectors use both N-type and P-type transistors to form the electrically
controlled gate- true or false? - Answer- true
which of the two technologies, CCD or CMOS, is more susceptible to noise, has a lower
sensitivity, uses very little power and is inexpensive to manufacture? - Answer- CMOS
Which statement best describes a charge-coupled device (CCD)? - Answer- it is the
oldest indirect conversion technology used in a variety of image capture applications
The components that focus the signal from the scintillators to the CCD are - Answer-
Fiber optics
Which layer of the PSP plate sends light in a more forward direction when released in
the reader? - Answer- reflective
Which layer of the PSP plate reduces static electricity? - Answer- conductive
The barcode label is used by the reader to identify the PSP plate- true or false? -
Answer- true
The laser excites the electrons trapped in the phosphor centers so that the energy may
be released in the form of __________. - Answer- light
Which picture archival and communication system (PACS) Component interfaces with
the radiology information system and hospital information system - Answer- Image
manager
, Which term is used to describe when data are broken up into pieces and each disk
receives a "piece" of the data? - Answer- Striping
A category of disk drives that uses two or more drives in combination for fault tolerance
and performance is: - Answer- RAID
Most of the _______ levels of RAID are a combo of the original five - Answer- 11
Which device scans an analog film and produces numeric signals based on the
appearance of the film? - Answer- Film digitizer
Film digitizers use which of the following technologies to acquire digital images?
1 TFT
2 CCD
3 Laser - Answer- CCD and Laser
Which film digitizer uses a helium neon laser to convert the analog film image into a
digital image?
1. Laser film digitizer
2. CCD film digitizer
3. TFT film digitizer - Answer- 1 only
Which film digitizer uses fluorescent bulbs to aid in converting the analog film image into
a digital image?
1. Laser film digitizer
2. CCD film digitizer
3. TFT film digitizer - Answer- 2 only
Which term is used to describe the process of transferring images to remote locations
for reading by a radiologist? - Answer- Telaradiology
Dry imager film is more sensitive to what in comparison to conventional film?
1. Heat
2. Cold
3. Humidity - Answer- 1 and 3
Testing performed before newly installed or majorly repaired equipment can be
accepted but the department is called ___________ testing. - Answer- Acceptance
CQI tends to focus on _____ rather than the _______ - Answer- Process; people
Whereas QA/QC programs focus on ________ quality, CQI focuses on ______ the
process. - Answer- Maintaining; improving
CQI focuses on: - Answer- process
AND ANSWERS (ALREADY
PASSED)
A system that uses scintillators hat convert x-rays to light and light to electric charge
and stores the charge in capacitors is known as a: - Answer- CMOS
A solid chemical element or compound doped with impurities that make it highly
conductive is known as a: - Answer- semiconductor
Most CMOS detectors use both N-type and P-type transistors to form the electrically
controlled gate- true or false? - Answer- true
which of the two technologies, CCD or CMOS, is more susceptible to noise, has a lower
sensitivity, uses very little power and is inexpensive to manufacture? - Answer- CMOS
Which statement best describes a charge-coupled device (CCD)? - Answer- it is the
oldest indirect conversion technology used in a variety of image capture applications
The components that focus the signal from the scintillators to the CCD are - Answer-
Fiber optics
Which layer of the PSP plate sends light in a more forward direction when released in
the reader? - Answer- reflective
Which layer of the PSP plate reduces static electricity? - Answer- conductive
The barcode label is used by the reader to identify the PSP plate- true or false? -
Answer- true
The laser excites the electrons trapped in the phosphor centers so that the energy may
be released in the form of __________. - Answer- light
Which picture archival and communication system (PACS) Component interfaces with
the radiology information system and hospital information system - Answer- Image
manager
, Which term is used to describe when data are broken up into pieces and each disk
receives a "piece" of the data? - Answer- Striping
A category of disk drives that uses two or more drives in combination for fault tolerance
and performance is: - Answer- RAID
Most of the _______ levels of RAID are a combo of the original five - Answer- 11
Which device scans an analog film and produces numeric signals based on the
appearance of the film? - Answer- Film digitizer
Film digitizers use which of the following technologies to acquire digital images?
1 TFT
2 CCD
3 Laser - Answer- CCD and Laser
Which film digitizer uses a helium neon laser to convert the analog film image into a
digital image?
1. Laser film digitizer
2. CCD film digitizer
3. TFT film digitizer - Answer- 1 only
Which film digitizer uses fluorescent bulbs to aid in converting the analog film image into
a digital image?
1. Laser film digitizer
2. CCD film digitizer
3. TFT film digitizer - Answer- 2 only
Which term is used to describe the process of transferring images to remote locations
for reading by a radiologist? - Answer- Telaradiology
Dry imager film is more sensitive to what in comparison to conventional film?
1. Heat
2. Cold
3. Humidity - Answer- 1 and 3
Testing performed before newly installed or majorly repaired equipment can be
accepted but the department is called ___________ testing. - Answer- Acceptance
CQI tends to focus on _____ rather than the _______ - Answer- Process; people
Whereas QA/QC programs focus on ________ quality, CQI focuses on ______ the
process. - Answer- Maintaining; improving
CQI focuses on: - Answer- process
