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Siemens AG
Register 3
SPB7-230.033.11
Page 1 of 4
M1000/3000 Nova
Medical Solutions
Rev. 06
05.06
CS PS SP
Installation and Start-Up
Checking the radiation field limitation
19
General
19
The nominal width of the radiation field is 248 mm (18×24 mode) and 308 mm
(24×30 mode). The nominal depth of the radiation field is 191 mm (18x24 mode) and
243 mm (24x30 mode), adjusted so that there will be no white edge on the film.
•
On the chest wall side, the radiation field must extend beyond the film edge but not more
than 9 mm. That applies for both the 18x24 and the 24x30 mode.
•
On the sides, the radiation field must not extend outside the object table and not extend
more than 13 mm outside the film.
•
On the nipple side, the radiation field must not extend beyond the film edge by more than
13 mm.
The light field must coincide with the radiation field within the following tolerances:
Left edge:
&
6.5 mm
Right edge:
&
6.5 mm
Back edge:
&
6.5 mm
Front edge:
&
6.5 mm