« previous next »

Author Question: How will application of a larger focal spot size affect a radiographic image? alters contrast ... (Read 160 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 17, 2018
How will application of a larger focal spot size affect a radiographic image?
 
 alters contrast
  decreases recorded detail
  increases recorded detail
  alters density

Question 2

The disadvantage of a stationary grid is:
 
 image quality
  grid lines
  inability to focus
  patient dose


sierramartinez

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 17, 2018
Answer to Question 1

decreases recorded detail

Rationale: There are two focal spot sizes to choose from. Small focal spots are most ideal and result in sharper recorded detail, but with increased mAs values, increase heat production will result, therefore a larger focal spot should be selected.

Answer to Question 2

grid lines

Rationale: Stationary grids are lower ratio grids, which affect their efficiency, but grid lines are the biggest drawback. The beam must be adequately aligned to the grid to eliminate the appearance of grid lines on the image.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

washai

  • Hero Member
  • *****
  • Posts: 523
Reply #2 on: Jul 17, 2018
TY


sierramartinez

  • Sr. Member
  • ****
  • Posts: 313
Reply #3 on: Jul 17, 2018
Happy to Help


« previous next »
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

A full-term pregnancy. Image illustrates position of the fetus and the structures associated with pr A full-term pregnancy. Image illustrates position of the fetus and the structures associated with pr
Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su
Creating Red Spot Creating Red Spot
Contrast of ventilation and external and internal respiration. Contrast of ventilation and external and internal respiration.
Size-exclusion chromatography (aka gel-filtration) Size-exclusion chromatography (aka gel-filtration)
Beak size in finches during dry years increases because of strong selection Beak size in finches during dry years increases because of strong selection
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library