Technical Description: System
Ion Detection
B-12
Prima PRO & Sentinel PRO Mass Spectrometers User Guide
Thermo Fisher Scientific
1.
From the Instrument Control Panel, select the Detectors tab and
Multiplier Calibration from the drop down function box (
Figure B
–8.
Multiplier Calibration
2.
Choose a suitable mass with a peak height in the range of 1 to 8 x
10
-13
amps on the Faraday detector. Start the scan (by clicking on
the
Start Scan
button) and observe the multiplier gain as a
function of the multiplier voltage.
3.
Click on the
Add Cursor
button and set the cursor to the
required gain.
4.
Click on the
Set DAC
button to set the voltage to give the
required gain.
Figure B
–9.
Micro channel plate
