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Cranex® D Site Ceph Beam Alignment (White Panel Version)

Rev. 1

Cranex

D Ceph Beam Alignment (White Panel)

Page

Vertical alignment:

If the beam is above or below the bottom horizontal line, loosen
the Two mounting screws and then adjust the top screw.

Tilt:

If the beam is going in a diagonal direction, adjust the side screw
to get the beam straight.

Содержание Cranex D

Страница 1: ...ex D Ceph beam alignment procedure White Panel Unit Only This procedure is a quick guide that goes through the beam alignment procedure To make this easier the tech should have the beam alignment tool Part 203603 when performing the alignment Step 1 Be sure the main pan unit ceph arm and head are level before beginning ...

Страница 2: ... Ceph Beam Alignment White Panel Page 2 of 13 Step 2 Get into service mode by doing the following Select Sr 11 EPS and press the E key and let go do not hold the button Press the left or right upper arch button to select the different technique factors and exposure time ...

Страница 3: ...White Panel Version Rev 1 Cranex D Ceph Beam Alignment White Panel Page 3 of 13 Press the return button Three times to ensure the pan head and ceph head are aligned properly Step 3 Install the beam alignment tool on the Ceph sensor now ...

Страница 4: ...nel Page 4 of 13 Step 4 Remove the secondary collimator from the Ceph head by removing the lock bolts and unplugging the ribbon cable Step 5 With the unit now in EPS mode and centered make sure the display reads 85 kV 10 mA and 2 00 seconds This gives you a long enough exposure time to see the beam ...

Страница 5: ... Cranex D Ceph Beam Alignment White Panel Page 5 of 13 Step 6 Take an exposure what s needed is for the beam to be within the Two outer vertical lines on the beam alignment tool and also at the bottom line as shown below Remember the secondary collimator is off ...

Страница 6: ...eam Alignment White Panel Page 6 of 13 Step 7 If the beam is not within the lines horizontally Loosen the Four Torx screws that hold the Ceph head onto the arm Slide the head in or out until the beam is centered properly Be sure to lock the screws down once the beam is aligned ...

Страница 7: ... Alignment White Panel Page 7 of 13 Step 8 If the beam is not touching the bottom line in the tool loosen the Two bolts on the collimator that is in front of the tubehead and then adjust both alignment screws Be sure to adjust these screws the same amount so the beam stays level ...

Страница 8: ...tach the secondary collimator and ribbon cable Step 10 With the unit still in EPS mode and the beam tool attached to the ceph sensor take another exposure The beam needs to fall on the entire Three inner vertical lines on the beam tool and also on the bottom line If the beam is way off redo steps 7 8 and 9 again to ensure the beam is correctly aligned ...

Страница 9: ...Panel Page 9 of 13 Step 11 If the beam is out of alignment then do the following Horizontal alignment A Loosen the screw on the belt cog wheel B Insert a slotted screwdriver into the cog wheel end while holding the belt turn the screw in the desired direction to get the secondary aligned properly ...

Страница 10: ...eam Alignment White Panel Page 10 of 13 Vertical alignment C If the beam is above or below the bottom horizontal line loosen the Two mounting screws and then adjust the top screw Tilt D If the beam is going in a diagonal direction adjust the side screw to get the beam straight ...

Страница 11: ...of 13 Step 12 With the alignments now done Turn all Three trimpots on the beam detector board Two turns fully counter clockwise This increases the sensitivity of the board so it can detect the beam at low and high settings Step 12 Try a Ceph now in normal scan mode Be sure the scan goes all of the way through ...

Страница 12: ...n if needed and see where the ear rods are at this point The small ring should be in the larger ring to be properly aligned Step 14 Vertical ear rod alignment procedure 1 Loosen the M6 fixing bolt behind the Ceph head motor This allows the head to be tilted 2 Adjust the vertical position with the adjustments screw in the ceph head Step 15 Horizontal Ear Rod alignment ...

Страница 13: ...Alignment White Panel Page 13 of 13 1 Loosen the fixing screw at the rear of the Ceph head 2 Adjust the horizontal position by moving the rod located behind the up down membrane in the Ceph head Take a final exposure and make sure the scan and ear rods are all set Unit is now done ...