This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is not a form of beam restriction? collimators wedge filter cones ... (Read 71 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 17, 2018
Which of the following is not a form of beam restriction?
 
 collimators
  wedge filter
  cones
  aperture diaphragms

Question 2

Which of the following factors would not indicate the need for a grid?
 
 higher kVp
  a thicker part
  increased SID
  increased OID


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jesse.fleming

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Jul 17, 2018
Answer to Question 1

wedge filter

Rationale: A wedge filter will not serve as a means of beam restriction, but rather a means to create a more uniform density on parts of uneven part thickness, e.g., foot, t-spine.

Answer to Question 2

increased SID

Rationale: A grid is suggested with parts measuring over 10 cm and with higher kVp. Increased kVp values influence the amount of scatter radiation produced. In cases where increased OID is a factor with a thicker part, the theory of the air-gap technique could apply, avoiding the need for a grid.


washai

  • Member
  • Posts: 523
Reply 2 on: Jul 17, 2018
Excellent

tuate

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Relation between form, particular objects, and images in Plato’s Line. Relation between form, particular objects, and images in Plato’s Line.
Advance Beneficiary Notice Form (ABN). Advance Beneficiary Notice Form (ABN).
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
First-Pass Effect: Oral Drug Is Metabolized to an Inactive Form Before It Has an Opportunity to ... First-Pass Effect: Oral Drug Is Metabolized to an Inactive Form Before It Has an Opportunity to ...
The dissociation equilibrium constants for the protonated form of alanine (a diprotic amino ... The dissociation equilibrium constants for the protonated form of alanine (a diprotic amino ...
form unit form unit
Video: Introduction to Sleep Apnea

For a complete list of videos, visit our video library