User`s guide

Instrument Settings Parameter Descriptions

Voyager

™

Biospectrometry

™

Workstation User’s Guide 5-19

Shots/Spectrum Determines the number of laser shots that each spectrum

will contain. For more information, see Section 5.4.4.4,

Setting Shots/Spectrum.

The maximum number of Shots per Spectrum for each

digitizer are as follows:

• Signatec—256

• LeCroy—1,000

• Tektronix—10,000

NOTE: The actual number of times the laser fires may be

greater than the number of Shots/Spectrum specified, due

to the limited averaging speed of the digitizer. For

example, if 250,000 data points are recorded, every other

laser shot is skipped by the digitizer. In any case, the

specified number of Shots/Spectrum will be stored in the

data file.

Spectrum Acquisition

Mass Range (Da) Determines the mass range collected.

Valid ranges are:

• Start Mass—0 to End Mass.

• End Mass—Start Mass to End Mass.

For information on the default digitizer settings used with

the mass range specified, see “Default Number of Data

Points/Bin Size settings” on page 5-48.

Table 5-4 Instrument Settings Parameters (Continued)

Parameter Description