ORTEC digiBASE-E, Руководство пользователя

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digiBASE-E ™ High-Performance Power-over-Ethernet Multichannel Analyzer / PMT Base for Scintillation Detectors
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Figure 9. digiBASE-E Amplifier 2 Tab.
3.1.2. Amplifier 2
Figure 9 shows the Amplifier 2 tab,
which contains the shaping controls
and accesses the InSight™ Virtual
Oscilloscope mode.
The choice of Rise Time allows
you to precisely control the tradeoff
between resolution and throughput.
Increase the rise time for better reso-
lution at expected lower count rates.
When unusually high count rates are
anticipated, reduce the rise time for
higher throughput with somewhat
worse resolution.
Valid settings range from 600 ns
to 2
μ
s in 40 ns steps. Note that the Rise Time setting is both the rise and fall times; thus,
changing the rise time has the effect of spreading or narrowing the quasi-trapezoid
symmetrically.
The Flattop Width adjusts the width of the top of the quasi-trapezoid from 40 ns to 2.0
μ
s in
40 ns steps.
The dead time per pulse is
For the more advanced user, the InSight mode allows you to directly the digiBASE-E’s
advanced shaping parameters and adjust them interactively while collecting live data. To access
the InSight mode, click on Start, then refer to the discussion in the MAESTRO User’s Manual.
Note that only the None, PosBLDisc, and Peak mark types are available; and the shaping
parameter controls on the InSight sidebar are not functional.
3.1.3. ADC
This tab (Fig. 10) contains the Gate, Lower Level Discriminator, and Upper Level
Discriminator controls. In addition, the current real time and live time are monitored at the
bottom of the dialog.
The digiBASE-E operates at a Conversion Gain of 256, 512, 1024, or 2048 channels.