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Optimizing Instrument Settings Parameters
Voyager
Biospectrometry
Workstation User’s Guide 5-67
5
5.4.3.4 Optimizing Delay Time
This section includes:
•Overview
Inherent Delay Time offset
Optimizing Delay Time
Setting Delay Time to resolve isotopes across a broad
mass range
Overview
Use this procedure when operating in Linear mode or
Reflector mode. Start with a standard .BIC file, optimize the
Delay Time, and leave the Grid Voltage% unchanged.
Before optimizing, read “Setting Delay Time to resolve
isotopes across a broad mass range” on page 5-71.
NOTE: You can alternatively follow the procedure in
Section 5.4.3.5, Optimizing Grid Voltage%. However,
optimizing Delay Time is a simpler procedure.
For more
information
For more information, see Section 5.3.3, Understanding
Delay Time.
Inherent Delay
Time offset
There is an inherent 177±5 nsec delay between the time the
laser fires and the time the voltage is applied. The actual time
that voltage is applied is equal to the Delay Time you enter
plus the inherent delay on your system. Changing the Delay
Time in increments smaller than 25 nsec may have no
significant impact on resolution.
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