Equipment & QM Final Test

X-ray Tube

100

What will happen if the patient, tube and IR are at the chest stand, but the detectors are activated at the table? 

Tube will stay on longer

200

Which factor may increase focal spot blooming? 

High mA

300

If the AEC is not completely covered by the patient part and the primary beam hits it, the image will be: 

Underexposed

400

This is set at 150% of the expected exposure in case of operator error or equipment failure: 

Back-up Timer

500

The focal spot size on the anode is referred to as: 

Actual FS

QM

100

The accuracy of collimation light to the actual x-ray field should be within _____%. 

2%

200

SMPTE refers to checking: 

Monitors

300

The focal spot is tested to ensure the "blooming" is under _____ of the stated size. 

50%

400

The 8 penny test allows you to check: 

Collimation accuracy

500

An xray room has inconsistent exposure index # when changing from 200 mA to 400 mA. What test will lead to an accurate diagnosis of the problem and what are you looking for? 

Dosimeter

Exposure linearity

Modalities

100

Positrons for one of Nuc's machines is created by the:

Cycoltrons

200

What form of energy does sonography use to form an image? 

Sound waves

300

What are the special cooling agents used in MRI called?

Cryogens

400

Where does radioactivity use in Nuc Med originate from? 

The nucleus

500

Who is responsible for devising a treatment plan that minimizes the effect to the surrounding normal tissues in Radiation Oncology? 

Dosimetrist

Fluoroscopy

100

Fluoro tube design is different from diagnostic tubes to accommodate: 

Higher heat loads

200

To reduce patient dose, the pulse width during fluoroscopy should be:

Narrower

300

The minimum fluoro tube to entrance skin distance, for mobile fluoroscopy is?

12"

400

In fluoro, a CCD can be used in place of: 

Camera Tubes

500

Fluoroscopy allows for: 

Dynamic Information 

Wild Card

100

What part of the Image Intensifier emits electrons from the light received? 

Photocathode

200

What is the purpose of the electrostatic focusing lens? 

Focus electrons down to a smaller area

300

This refers to the amount the II can amplify the overall image and can be calculated by flux x minification

Total Brightness Gain

400

An increase in light photons due to the conversion efficiency of the output screen is referred to as: 

Flux Gain

500

There appears to be poor recorded detail on the images, which test could lead to an accurate diagnosis? 

Focal spot test tool