Amplification and shaping of signals from preamplifiers of semiconductor nuclear-radiation detectors.
USES
The amplifier UIS-04 is used as part of spectrometers (SU-05P, SU-05P1) or with other sources of pulsed signals.
FEATURES
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Input pulse parameters: |
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- input pulse polarity |
+/- |
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- rise time |
No more than 200 ns |
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- decay time constant |
No less than 50 µ s |
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Input resistance |
1 k Ω |
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Output pulse parameters: |
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- output pulse polarity |
+ |
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- maximum amplitude (at RL = 1 kΩ ) |
8.2 V |
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Quasi-Gauss shaping (T is the shaping time constant)
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With vertex time 2.2T;
With total duration no longer than 6.4T for the level 0.1 |
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Shaping time constants |
1 and 3 µ s or 2 and 6 µ s |
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Output resistance |
50 Ω |
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Integral nonlinearity |
No more than В±0.04% |
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Gain is adjusted by |
|
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- “ COARSE” selector switch |
In steps of 1.277 from 1 to 16 |
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- “ CONTINUOUS” knob |
From 1 to 1.358 |
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- jumper on the circuit card with a divider |
1:1 or 1:10 |
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Basic gain setting error |
No more than В±20% |
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Noise level reduced to the input at the gain over 150 |
No more than 7 µ V at 2 µ s;
No more than 8 µ V at 1 µ s |
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Intensity characteristics at the input intensity 105 s-1 and shaping time constant 1 µ s or 2 µ s: |
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- displacement of the center of gravity of the 60Co peak (at least 90% of the full scale) |
No more than В±1% |
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- peak broadening |
No more than 50% |
