X-rays were discovered in 1895 in: - Correct Answers Germany
The inventor of the hot cathode X-ray tube was: - Correct Answers Crookes
The majority of radiography education programs are based in: - Correct Answers Colleges
A cassette containing photostimulable phosphor plate is one form of: - Correct Answers Image receptor
Which of the following is not a basic requirement for the production of x-rays? - Correct Answers A
photostimulable phosphor
When fast-moving electrons collide with the target of an X-ray tube, the kinetic energy of their motion is
converted into x-rays and: - Correct Answers Heat
Of the following types of electromagnetic energy, which has the shortest wavelength? - Correct
Answers Gamma rays
Which of the following is not an accurate statement regarding the characteristics of x-rays? - Correct
Answers They can be refracted by a lens
The characteristics most often used to describe the energy of an x-ray beam is its: - Correct Answers
Wavelength
An x-ray beam that has been attenuated by matter is called: - Correct Answers Remnant radiation
A device used to indicate the location of the radiation field and to control its size is called a: - Correct
Answers Collimator
,An x-ray machine that permits viewing of the x-ray image in motion in real time is called: - Correct
Answers A fluoroscope, invented by Thomas Edison
The four prime factors of radiographic exposure are exposure time, milliamperage, kilovoltage, and: -
Correct Answers Source-image distance SID
The prime factor that controls the wavelength of the x-ray beam is: - Correct Answers Kilovoltage
The prime factor that controls the rate at which x-rays are produced is: - Correct Answers
Milliamperage
The mAs value of an exposure is varied to provide control of: - Correct Answers Optical density
The imaging system that provides an instantaneous digital image on a monitor is called: - Correct
Answers Digital radiography
The hardware and software for managing digital images is called: - Correct Answers PACS
Which of the following factors is not affected by a change in the mA setting? - Correct Answers OID
Which of the following factors is used to control image contrast? - Correct Answers kVp
The inverse squares law states that radiation intensity is inversely proportional to the square of the: -
Correct Answers SID
A variation in the size or shape of the image in comparison to the object it represents is called: - Correct
Answers Distortion
The product of dose in Grays times the WF is equal to the dose equivalent, which in the SI system is
measured in units called: - Correct Answers Sieverts
, One centigray (cGy) is equal to: - Correct Answers 1 rad
The laws of Bergonie and Tribondeau state that the sensitivity of cells to radiation injury depends upon 4
principle factors. These factors are cell age, cell complexity, the rate of replication, and: - Correct
Answers The rate of energy use by the cell
Short-term, predictable radiation effects typically occur as a result of: - Correct Answers High dose of
radiation exposure, such as those received in radiation therapy
The term radiation sickness refers to: - Correct Answers Short-term gastrointestinal effects
The effective dose-equivalent limit for whole-body occupational radiation exposure to nonpregnant
radiation workers older than 18 years is: - Correct Answers 50 mSv (5 rem) per year
Long-term radiation effects that are apparently random, and have no threshold amount of exposure
that must be received for them to occur, are termed? - Correct Answers Stochastic
Genes that are expressed in the individual are said to be: - Correct Answers Dominant
Which of the following is a type of personal radiation dosimeter? - Correct Answers OSL
When a pregnant patient requires abdominal or pelvic radiography, the decision to do a limited study
and the determination of the exact limitations to be imposed are the prerogatives of the: - Correct
Answers Radiologist
The only recognized professional society open to all radiologic technologists in the US today is the: -
Correct Answers ASRT
Fee-for-service-type health insurance is often appealing to patients because: - Correct Answers Patients
can seek care from their choice of physicians and hospitals
The inventor of the hot cathode X-ray tube was: - Correct Answers Crookes
The majority of radiography education programs are based in: - Correct Answers Colleges
A cassette containing photostimulable phosphor plate is one form of: - Correct Answers Image receptor
Which of the following is not a basic requirement for the production of x-rays? - Correct Answers A
photostimulable phosphor
When fast-moving electrons collide with the target of an X-ray tube, the kinetic energy of their motion is
converted into x-rays and: - Correct Answers Heat
Of the following types of electromagnetic energy, which has the shortest wavelength? - Correct
Answers Gamma rays
Which of the following is not an accurate statement regarding the characteristics of x-rays? - Correct
Answers They can be refracted by a lens
The characteristics most often used to describe the energy of an x-ray beam is its: - Correct Answers
Wavelength
An x-ray beam that has been attenuated by matter is called: - Correct Answers Remnant radiation
A device used to indicate the location of the radiation field and to control its size is called a: - Correct
Answers Collimator
,An x-ray machine that permits viewing of the x-ray image in motion in real time is called: - Correct
Answers A fluoroscope, invented by Thomas Edison
The four prime factors of radiographic exposure are exposure time, milliamperage, kilovoltage, and: -
Correct Answers Source-image distance SID
The prime factor that controls the wavelength of the x-ray beam is: - Correct Answers Kilovoltage
The prime factor that controls the rate at which x-rays are produced is: - Correct Answers
Milliamperage
The mAs value of an exposure is varied to provide control of: - Correct Answers Optical density
The imaging system that provides an instantaneous digital image on a monitor is called: - Correct
Answers Digital radiography
The hardware and software for managing digital images is called: - Correct Answers PACS
Which of the following factors is not affected by a change in the mA setting? - Correct Answers OID
Which of the following factors is used to control image contrast? - Correct Answers kVp
The inverse squares law states that radiation intensity is inversely proportional to the square of the: -
Correct Answers SID
A variation in the size or shape of the image in comparison to the object it represents is called: - Correct
Answers Distortion
The product of dose in Grays times the WF is equal to the dose equivalent, which in the SI system is
measured in units called: - Correct Answers Sieverts
, One centigray (cGy) is equal to: - Correct Answers 1 rad
The laws of Bergonie and Tribondeau state that the sensitivity of cells to radiation injury depends upon 4
principle factors. These factors are cell age, cell complexity, the rate of replication, and: - Correct
Answers The rate of energy use by the cell
Short-term, predictable radiation effects typically occur as a result of: - Correct Answers High dose of
radiation exposure, such as those received in radiation therapy
The term radiation sickness refers to: - Correct Answers Short-term gastrointestinal effects
The effective dose-equivalent limit for whole-body occupational radiation exposure to nonpregnant
radiation workers older than 18 years is: - Correct Answers 50 mSv (5 rem) per year
Long-term radiation effects that are apparently random, and have no threshold amount of exposure
that must be received for them to occur, are termed? - Correct Answers Stochastic
Genes that are expressed in the individual are said to be: - Correct Answers Dominant
Which of the following is a type of personal radiation dosimeter? - Correct Answers OSL
When a pregnant patient requires abdominal or pelvic radiography, the decision to do a limited study
and the determination of the exact limitations to be imposed are the prerogatives of the: - Correct
Answers Radiologist
The only recognized professional society open to all radiologic technologists in the US today is the: -
Correct Answers ASRT
Fee-for-service-type health insurance is often appealing to patients because: - Correct Answers Patients
can seek care from their choice of physicians and hospitals
