Figure 22 shows the correct setting of the P/Z control. Figures 23 and 24 show under- and
over-compensation for the preamplifier decay time constant. As illustrated in Figure 22, the AMP
OUT signal should have a clean return to baseline with no bumps, overshoots or undershoots.
38
Performance Adjustments
Figure 22 Correct Pole/Zero
Compensation
Figure 23 Undercompensated Pole/Zero
Figure 24 Overcompensated Pole/Zero
Scope
Vertical: 50 mV/div
Horizontal: 10 µs/div
Source
55
Fe
5.9 kev peak: 7 V amplitude
Count rate: ≈ 2 kcps
Shaping: 2 µs
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