Roentgen discovered x-rays while working with a(n) ____ tube

An electron cloud surrounding the filament of the cathode is referred to as a:

Free electrons for x-ray production come from the

The creation of the space charge in the x-ray tube produces

The majority of photons in the x-ray beam are created by which process?

More than 99% of the energy of the electron stream is converted into

The high speed rotation (10,000 rpm) of the anode enables

The degree of angulation of the x-ray tube target will determine the

A dual-focus x-ray tube has: 1. Two filaments 2. Two focal spot sizes 3. Two anodes

The anode heel effect is a phenomenon of x-ray production that results in

To take advantage of the anode heel effect when making a radiograph of the femur in recumbent Anteroposterior on a 14 x17 inch image receptor (IR) at a 40 inch SID, the patient should be placed so that the

The penetrating power of the x-ray beam is controlled by varying the:

The rate of current flow across the x-ray tube is measured in

Doubling the mA will result in: 1. Increased patient dose 2. Twice as many photons in the x-ray beam 3. Increased radiographic density

The unit used to indicate the total quantity of x-ray exposure is

An x-ray exposure is made using the following factors: 200 mA, 0.02 seconds, 80 kVp, 40 inches SID. The value of the mad for this exposure is

The device for removing long-wavelength radiation from the primary x-ray beam is the

X-ray equipments that are able to produce 70 kVp or more is required to have total filtration of at least:

The purpose of rotating the anode of the x-ray tube is to:

Image sharpness is determined by

Above 70 kVp, what % of photons is created by bremsstrahlung radiation?

The amount of detail seen in an x-ray image is referred to as

When electrons in the outer most orbital shells move so far from the nucleus that they are no longer held in orbit but are flung out the atom.

How much target is needed in a general purpose tube?

What is the effect on the x-ray beam of the kVp is increased?

If the x-ray tube had 0.5 mm AL equiv inherent filtration , and the collimator provides an additional 1.25 mm AL equiv, how much additional filtration must be added to meet minimum safety requirements?

What is the standard rotation speed of the x-ray tube’s anode?

What is the % of characteristic radiation that produced below 70 kVp?

What is the difference in radiation intensity between the anode and cathode end of the x-ray beam when a 14-17 inch IR is used at a 40 inch SID

The primary purpose of filtration is to

Name the tree components that contribute to inherent filtration.

If a patient has a body part that has a very thick portion and a very thin portion, which aspect of the x-ray tube should be placed over the thinnest area?

Label the following image

Label the following image

Of what material is the filament made?

Of what material of target/anode made?

What is added to the port to remove the king-wavelength radiation?

What is the term used to describe the heating of an element to a hot temperature and the expanding of the electrons in the atom?

Is the cathode side of the x-ray tube positive or negative?

Is the anode side of the x-ray positive or negative?

What are the two rotation speeds for the anode?

What type of radiation production makes up the greatest portion of the x-ray beam, bremsstrahlung or characteristic?

Characteristic radiation is not produced below which kVp level?

What is the name of the radiation produced when an incoming electron into the anode is suddenly braked and deviated?

The degree of angulation of the z-ray tube target (anode) will determine the

How is the volume or the intensity of x-rays affected by the heel effect?

The power and speed of the electrons inside the x-ray tube and the energy of the x-rays that emerge are controlled by the

The current, or volume, of x-ray production is measured in units of

The mA or mAs used for an exposure determines

What type of motor is used to turn the anode inside the x-ray tube?

When is the large focal spot used?