In many cases digital fluoroscopy eliminates which of the following

what is the smallest particle of an element that retains the characteristics of an element

In a digital fluoroscopy ,the image must be turned into digital form by what device

X-rays travel as bundles of energy called

What is atomic mass

What device may be used to ensure the consistency of radiographic quality from one exposure to the next

When a predetermined level of ionisation is reached in the ionization chamber ,what does the machine do

what type of current is required for the proper operation of the x-ray tube

The law stating that the outer shell of an atom contain no more than eight electrons is called

Examples of particulate radiation are

Electro magnetic radiation travels

Electromagnetic radiations travels in bundles of energy called

At what speed do X-rays travel

Waves of radiation are called

Wave length is defined as the distance from

Frequency is defined as

Speed of x-rays is based on

wavelenght and frequency are

The x-ray beam changes as it trvaels through the patient by a process called

The intensity of the radiation is inversly proportional to the square of the distance between the source of radiation and the person receving it .This descibes the

As radiation strikes matter

What type of x-ray machine uses a continually decreasing mA for the shortest time possible

Which of the followimg statements true regarding electrostatic charges

which of the following statements are false

Electromagnetic induction is the process of causing

Two types of electromagnetic induction are

Self induction is used in the operation of what device

The strength of the magnetic fields in transformer is increased by

Electricity is supplied to the imaging department by a

The electricity provided to the radiology department is

The electricity provided at radiology department operates at

Hgh-frequency power

Primary advantage of three -phase power is that

A variable transformer that is used to select kVp for the x-ray circuit is the

A transformer that has more turns in the secondary than primary is called a

What is the transformer used to boost voltage to kilovoltage levels called

Voltage coming to the x-ray machine is kept constant through the use of a(n)

A step-down transformer

Where does thermionic emission occur

Which of the following device is prereading

Which device is electronic,with increments of 0.001 second

What changes AC to DC

Which device reduces voltage and provides current to produce an electron or space charge at the filament

Which of the following is surrounded by a negatively charged focusing cup

Which of the following is composed of solid-state,silicon-based diodes

What regulates the duration of x-ray production

What is located in the x-ray circuit between the high voltage transformer and the x-ray tube

Which of the following measures tube current

What does spins at 3300 to 10,000 rpm

What devices uses maximum heat storage ability of the tube to deliver mAs

What is the source of bremsstrahlung and characteristic rays

What devices increases voltage approximately 500 times

What is commonly used AEC

What device always delivers the shortest exposure time possible

What device is turned by a rotar

Which of the following is located between the patient and the image receptor

Filament is kept warm up by

Activating the rotor:

when making an exposure,the radiographer should:

The process of thermionic emission causes :

The electron stream passes from cathode to anode because of ———passing through the x-ray tube.

Heat is produced in the x-ray tube as :

Most of the energy conversions in the xray tube produces:

X rays are produced as incident electrons interact with target atoms by a process called:

Xrays are produced as incident electrons interact with inner shell electrons in target atoms by a process called :

What percentage of energy in the Xray tube is converted to Xrays?

Which of the following are properties of Xrays?

The x-ray beam is :

The Xray emission spectrum consists of:

The Primary purpose of filtration is:

The amount of material needed to reduce the intensity of beam by 1/10 is called:

Which of the following statements regarding filtration is true??

Calculating heat units for three phase,12 pulse equipment requires the use of —– as a constant ;

Calculating heat units for single phase equipment requires the use of —- as a constant ;

Calculating heat units for three phase,6 pulse equipment requires the use of —– as a constant ;

When a quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate ,the result must be within what amount of the control panel setting?

The primary type of grid used in diagnostic imaging is:

The portion of the image intensifier tube that converts electron energy to visible lights is the:

The portion of the image intensifier tube that converts visible light to an electron image is the:

The input phosphor of the image intensifier tube converts:

Total brightness gain achieved using an image intensifier equals:

Single phase ,full wave rectification produces:

Three phase,6 pulse full wave rectification produces:

Three Phase,12 pulse full wave rectification produces:

The increase in average photon energy when using three phase ,6 pulse equipment compared with single phase equipment is:

The increase in average photon energy when using three phase ,12 pulse equipment compared with single phase equipment is:

Programs that deal with the safe and reliable operation of equipment and programs that address all aspects of the delivery of radiology services are called:

Examples of dedicated Xray equipment include:

The collimator must be accurate to a level of:

kVp must be accurate to within :

Exposure linearity must be accurate within :

Exposure reproducibility must be accurate to within:

When a spinning top test is performed on single phase equipment,a radiograph exhibiting four dots would indicate:

when a spinning top test is performed on three phase equipment,a timer setting of 1/60 second should indicate the following on the resultant radiographs:

The test that measures the accuracy of adjacent mA station is:

The test that measures the accuracy of successive exposures is:

Effective focal spot size may be measured using the following tools:

Resolution of the television system may be measured during the folowing tool

AEC s are tested during:

The amount of mA used for fluoroscopy is:

Marks on the focal track of the anode resulting from bombardment of electrons are called:

Effective quality control and quality assurance programs are required for accreditation by: