Siemens MOBILETT Plus HP Service Manual

Replacement and repairs on the collimator 9 - 3
Siemens AG SPR8-220.061.03 Page 3 of 10 MOBILETT Plus HP
Medical Solutions Rev. 03 09.03 CS PS 24
Light field relative to the X-ray field 9
• Load a 35 x 35 cm (14" x 14") cassette with film.
• Place the cassette on a table or a similar surface.
• Set a SID of 100 cm (39"). Use a measuring tape.
• Switch on the collimator lamp and align the cassette. Collimate the light field to
25 x 25 cm (10" x 10").
• Mark the four corners with coins and mark one of the corners with two coins (Fig. 5).
• Set 52 kV, 2.0 mAs on the control panel.
• Release an exposure.
• Develop the film and measure the deviation between the light and the radiation field.
Acceptable deviation ± 1.7% of SID, (Fig. 6).
• If the deviation is more than 1.7%, adjust with the screws marked C and D (Fig. 2) to
move the light field closer to the radiation field.
• Repeat the test with a new exposure.
• If necessary, adjust again until the deviation between the light field and the radiation field
is within the tolerance specified.
• Reattach cover 1 (Fig. 1).
Equipment required: Cassette, X-ray film and coins
If the MOBILETT is equipped with a DAP measuring system,
remove the DAP ionization chamber first.
X-ray radiation!
If not observed, risk of radiation exposure.
Use radiation protection!
NOTE
CAUTION

Siemens MOBILETT Plus HP Specifications

General

Brand	Siemens
Model	MOBILETT Plus HP
Category	Medical Equipment
Language	English