ACCESSORIES become blurred and were no longer visible on

ACCESSORIES

1)GRID USE FOCUSED GRID

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·        
So that
the central grid strips are parallel and as the strips move away from the
central axis they become more and more inclined

·        
Grid must
impoving the contrast without impairing the view of the patient’s anatomy

1.     
Realigned
the lead strips so they would run in only one direction.

2.     
Lead
strips thinner and therefore less abvious on the image

3.     
Designed
a device that allowed the grid to move during the exposure

4.     
Moving
the grid , the lead strips become blurred and were no longer visible on the
image

·        
Grid
materials –     lead       – inexpensive/easy to shape into very
thin foil

                                            – increases to improve contrast

                        -aluminium  -allow radiation pass easily

·        
Grid
ratio must high to allow less scatter radiation to pass through their
interspace material to reach the image receptor

·        
Grid
frequency must high to minimize the possibility seeing the grid lines on the
image

2)CASSETTE

·        
It should
be light for easy manipulation

·        
Non
flexible so as not to allow the film to bend

·        
Size must
slightly larger than the x-ray beam and area to be radiographed to easy of the
operation.

3)INTENSIFYING SCREEN

·        
Use Rare earth elements 
as they are faster and have higher absorption and conversion efficiency
from x-ray photons to the light photons.

                                 
i.           
Can
reduce dose to patient

4)FILM USE ORTHOCHROMATIC FILMS

·        
Only not
sensitive to the red spectrum .

                    -Ensures the quality of the
film as the tape is opened in a dark room.

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5)CASSETTE HOLDER

·        
 Facilitates the taking
of X-ray films, particularly lateral views,and also stabilizes the part being
x-ray during exposure of the film.

6)LEAD SHIELDING

 

                  Figure 4                                                      
Figure 5

·        
Sheild patient
from radiation and reduce the effective dose

·        
Lead can effectively attenuate radiation because its
high density and high atomic number

·        
Example – gonad shield , lead apron , and thyroid collars

 

7POSITIONING SPONGES

                  Figure 6

 

·        
Helping
the radiographer to positioning patients in various positions and angles

·        
Allowing the patient to be kept still in the required
position.

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8)STEP STOOL

                   Figure 7

·        
Help
radiographer for patient positioning especially in erect bucky because erect
bucky can not be lowered to floor

9)X-RAY MARKERS

                                                     
Figure 8

·        
Help radiographer determine anatomical side of body, date of
the procedure, and the patients name.

 

10)SAND BAGS

              
Figure 9

·        
Help
radiographer to get the criteria requested by a doctor such as open joint
space.

 

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