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Optimizing Instrument Settings Parameters
Voyager
Biospectrometry
Workstation User’s Guide 5-75
5
5.4.4 Optimizing Signal-to-Noise Ratio
This section includes:
•Overview
Setting Accelerating Voltage
Setting Guide Wire Voltage%
Setting Shots/Spectrum
Setting Low Mass Gate
For more information on measuring Signal-to-Noise, see
Section 6.5.3, Calculating Signal-to-RMS Noise Ratio, and the
Data Explorer Software User’s Guide
, Section 6.5, Using
the Signal-to-Noise Ratio Calculator.
Manually
accumulating
spectra to
improve
signal-to-noise
ratio
The manual accumulation feature of the Voyager system
allows you to acquire a spectrum, examine the spectrum for
signal quality (visually, or using the Resolution or
Signal-to-Noise Ratio calculator), and then accumulate the
spectrum with other previously examined spectra, or discard
the spectrum. This process of accumulating only acceptable
spectra allows you to improve the signal-to noise ratio of the
final spectrum you save. For more information on manually
accumulating spectra, see Section 6.2.2, Manually
Accumulating Spectra from Multiple Acquisitions.
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