Siemens SIREMOBIL Iso-C

Adjustments / Programs 5 - 7
Siemens AG SPR2-230.061.01 Page 7 of 30 SIREMOBIL Iso-C
Medical Solutions Rev. 13 12.04 CS PS 24 System Manual
• Use the key to select the dose rate (LOW / MID / HIGH, shown in the "DOSERATE"
line).
• Apply fluoro briefly until the generator finishes regulating the automatic fluoro adjust-
ment.
• Select KV STOP at the system operating console.
• Switch on fluoro.
• Set the dose rate with the [+kV] and [-kV] keys. (Dose rate * grid correction factor).
• The resulting KV value should be between 70 to 80 kV. If necessary, change the prefiltra-
tion and set the dose rate again using keys [+kV] or [-kV]. Refer to the table.
• Switch off fluoro.
• Remove the dose measurement chamber from the I.I. input screen.
• Switch on fluoro.
• Press the [>0<] at the system operating console. This starts the automatic adjustment
procedure for the TV- iris collimator.
• Wait until the message "done" appears in the "AUTO REGULATION" line.
• The "BRIGHTNESS DEVIATION" value is shown in the "BRIGHTNESS DEVIATION"
line and should be 0 +
3 .
• Switch off fluoro.
Setting the dose rate for zoom format 5
refer also to notice on previous page *
• KV-STOP remains selected.
• Center the dose measurement chamber on the I.I. input screen and attach.
• Select the I.I. zoom format (refer to "I.I. ZOOM STATUS"). The KV values remain the
same. The mA values, however, are automatically increased by a factor of 1.41.
• Use the [mA+] and [mA-] keys to set the dose rate for the zoom format (Dose rate *grid
correction factor).
• Press the [>0<] key at the system operating console. This starts the automatic adjust-
ment procedure for the TV-iris collimator.
• Wait until the message "done" appears in the "AUTO REGULATION" line.
• The "BRIGHTNESS DEVIATION" value is shown in the "BRIGHTNESS DEVIATION"
line and should be 0 +
3. Refer also to notice on previous page *
• Switch off fluoro.
• Select the next level of dose rate (LOW / MID / HIGH) and repeat the dose rate setting for
the survey and zoom format for this level.