A key factor that effects the amount of scatter produced is

A radiographer can best minimize the amount of scatter radiation reaching the image receptor by restricting the beam

A radiographer can best reduce the amount of scatter radiation from reaching the receptor by

All of the following are considered beam-restricting devices EXCEPT

An effective method for reducing scatter radiation production is the

As more photons pass through the irradiated material UNATTENUATED, the resulting image receptor will

As the kilovoltage increases, the percentage of photons that undergo a ______ interaction will decrease.

As the kilovoltage increases, the percentage of x-rays that undergo _______ interactions will increase.

As the volume of irradiated tissue _____, the amount of scatter produced ____.

Automatic collimators are known as positive beam limitations (PBL) devices.

Bone absorbs more radiation and produces more scatter than soft tissue.

Cones and cylinders would be commonly employed for the following examinations EXCEPT

If an increase in kilovoltage is accompanied by a reduction in mAs, to maintain the same exit dose the overall result will be

Image quality is improved when scatter reaching the image receptor is reduced.

Lead masks may serve as beam restrictors.

PBLs may also filter the x-ray beam

Penumbra is a geometric unsharpness around the periphery of an image.

Placing a lead blocker adjacent to an obese patient’s anatomy during a lateral lumbar spine radiograph

Scatter radiation in radiography is produced during

Scattered photons from Compton interactions are of no use in demonstrating radiographic structures of interest

Scattered photons will

Soft tissue absorbs more radiation and produces more scatter than bone.

The _____ the atomic number of the irradiated material, the _____ the number of photoelectric absorption interactions that occur.

The ____ the atomic number of the irradiated material, the ____ the number of photoelectric absorption interactions will be, and the ____ the scatter produced.

The collimation assembly of a radiographic unit

The principal factors that affect the amount of scatter produced are focal spot size and the type of irradiated material.

The shutters of a collimator

The volume of the irradiated tissue increases as

When a beam - restricting device is used to limit field size, technical factors may need to _____ to compensate for the change in image receptor exposure.

When collimating down from a 14”x17” field size to a 8”x10” field size,

When kilovoltage is increased with no other changes in technical factors, fewer scattered photons will result.

When more photons are absorbed photoelectrically, the image receptor will

Which of the following is placed between the patient and the image receptor to absorb scatter radiation?

Accurate patient positioning has very little impact upon subject distortion

All of the following are related EXCEPT

All of the following are true of Compton scatter EXCEPT

All of the following pathological conditions would warrant an increase in exposure EXCEPT

All of the following refer to patient factors contributing to image quality EXCEPT

As subject density ____, image receptor exposure ____.

Attenuation is greater for elements with more ____ with which the photons may interact.

Because of its tissue composition, the human breast

Bone produces less image receptor _____ because it attenuates the x-ray beam more than soft tissue does.

Clinically speaking from a diagnostic viewpoint, the only USEFUL radiation exposure is that radiation

Distortion is the misrepresentation of the _____ of an object.

For most additive pathologies, an increase of ______ in kVp, is generally enough to compensate for the added attenuation.

For the same exposure intensity, air produces

Shape distortion can be the result of a patient's body habits.

Subject density refers to the impact the patient has on the resulting image receptor exposure.

Subject distortion occurs naturally.

The ____ the body part, the ____ the attenuation.

The beam emitted from the patient contains diagnostic information.

The degree of differential absorption is referred to as

The incident beam is significantly altered as it passes through the patient.

The patient has an impact on all the properties that affect radiographic quality.

The primary source of radiation exposure for occupational personnel is due to

The recorded detail of a structure is dependent on

The relationship between image receptor exposure and the patient is termed subject density.

The relationship between radiographic contrast and the patient is termed subject contrast.

The relationship between radiographic quality and the patient is termed image receptor exposure.

When performing a KUB on a patient with ascites, using AEC and the proper detector combination, the responsible radiographer would:

Which of the following elements would attenuate a greater percentage of the x-ray beam?

Which of the following elements would attenuate a lesser percentage of the x-ray beam?

Which of the following is the greatest attenuator of the x-ray beam?

Which of the following is the least attenuator of the x-ray beam?

With a patient in the supine position, the anatomical structure that would demonstrate the greatest subject detail would be the

With the patient in the posterior–anterior projection of the abdomen (prone),

With the perfusion of iodinated contrast material into the kidneys,

X-rays are attenuated

Patient factors include _____.

Which body habitus indicates an average patient?

Which body habitus indicates a thin, but healthy appearing patient?

Patient thickness affects radiographic technique by affecting _____.

A high quality radiographic image should always demonstrate_____.

Spatial resolution is limited to _____.

What is the formula for the magnification factor?

Distortion can be reduced by _____.

Which of these body parts has the highest subject contrast?

Radiographic image quality is improved when the ______ is increased

Radiographic technique charts embedded in the operating console are based on hypersthenic.

Patient thickness should not be guessed.

Foreshortening of the image is when the anatomical part appears smaller than normal.

The visibility of image detail is best measured by spatial resolution.

Pathology can appear with increased radiolucency or radiopacity