Pre_ Multiple attempt quiz - week 2

Identify the correct ways to handle film.

1. Handle film with clean hands 2. Handle film in the appropriate environment/temperatures 3. Handle film gently

List the correct steps in film processing:

1. Wetting 2. Developing 3. Fixing 4. Washing 5. Drying

Match the DR elements/types with the material associated with it. 1. Direct conversion 2. Indirect conversion 3. Capture element 4. Coupling element 5. Collecting element

1.Direct conversion =Amorphous selenium 2.Indirect conversion = Amorphous silicon 3. Capture element = Sodium iodide 4. Coupling element = Fiber optics 5. Collecting element = Photodiode

About what percentage of latent image do we expect to lose in 8 hours?

25%

Identify each step in the CR process: Answers

A. Expose B. Stimulate C. Read D. Erase

Identify each step in the CR process.

A.? B. ? C. ? D. ? Answers: OnNext slide

Identify the base layer.

Lowest level (Black Arrow)

Which of the following is known as picture elements in individual boxes?

Pixels

Which of the following artifacts is caused by inadequate exposure?

Quantum mottle

Which part of a cassetteless indirect digital radiography (DR) image receptor produces light photons?

Scintillation layer

Which of the following is the most common silver halide used in radiographic film?

Silver bromide

___________ is controlled by the size of the matrix and how many pixels can be displayed on the monitor.

Spatial Resolution

Typically, an increase in kVp warrants a: __________ in mAs due to the ________ rule.

decrease & 15%

Which technique is especially useful for scoliosis studies of the spine, long bone studies, or angiographic imaging of peripheral vasculature?

Image stitching

Increased margin for error in overexposure and underexposure to the digital receptor is due to what?

Increased latitude

Which of the following describes the faithful representation of the patient on a medical radiograph?

Diagnostic efficacy

Identify the type of image capture based on the image below.

Direct conversion

What layer is made of gelatin in which photosensitive silver halide crystals are suspended?

Emulsion

Which of the following reflects the amount of x-ray exposure to an image receptor, which looks at the quantity of photons that strike the detector?

Exposure indicators

Increasing kVp, decreases patient dose.

TRUE

What is the first step in establishing an exposure technique system?

The use of a phantom to produce a series of test exposures