Checking The Automatic Transparency Adaption - Siemens MOMMOMAT 1000 Installation And Start-Up Instructions Manual

Start-up and functional test of the IONTOMAT

Checking the automatic transparency adaption

Check the automatic transparency adaption with a grid table with 20, 40 and 60 mm plexi
at the voltage(s) preferred by the customer (within 25-35 kV) and all anode/filter combina-
tions. If the dose rate is too low (error 013 or "Limit"), use 50 mm plexi instead of 60 mm.
Tolerance:
≤ 0.3 density difference at constant voltage and thickness 20-60 mm.
≤ 0.3 at constant thickness and 25-35 kV.
NOTICE
These limits apply for film with max. gamma 4.0 measured at the density chosen.
NOTICE
Siemens-Elema AB
Solna, Sweden
Tolerance valid for grid tables and film/screen combination
according to table 1.
The film density levels may vary from cassette to cassette. There-
fore, be sure to use one and the same cassette for all test expo-
sures.
Register 3 SP B7-230.033.07
Rev. 03
Page 9 of 12
11.99 SPS-UD
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Mammomat 1000/3000
Installation and Start-Up