Spectroscopy Amplifier
N968
The CAEN Mod.N968 is a spectroscopy amplifier implemented in a one unit wide NIM module. It accepts the typical outputs generated from either optical feedback or resistor feedback preamplifiers connected with nuclear particle detectors. The output is Quasi-Gaussian with 0 to +10 V output dynamics.
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BNC connector 1-unit wide NIM unit, BNC type coaxial connector (Mod. N968) |
Consult our connectors reference page for technical information.
A front panel switch allows to select between positive and negative input signals. Gain setting can be performed continuously in the 10 ÷ 1500 range, product of Coarse, Fine and Superfine Gain. Two internal jumpers allow to set a x 0.1 attenuation and a further x 2 amplification, thus extending the gain range to 1 ÷ 3000. The shaping time values are 0.5, 1, 2, 3, 6, 10 µs.
The Pole Zero cancellation is performed via a front panel screw-trimmer. The module features also a Bipolar output (to be used for timing purposes), an advanced Gated Baseline Restorer circuit (with manual or automatic threshold setting) and a Pile Up Rejector which allows to reject piled up events.
Features
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Gain Range continuously variable from 1 to 3000
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Integral non-linearity < ± 0.025% for 2 µs shaping time
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Unipolar output noise < 4.0 µV rms for gain=100 and < 3.5 µV rms for gain=1000 (@ 3 µs shaping time)
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Bipolar zero cross-over walk < ± 3 ns (@ 50:1 dynamic range, 2 µs shaping time)
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LED indicator for high precision pole-zero cancellation without using oscilloscope
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Active filter networks with wide range of shaping times
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Gated baseline restorer with automatic controls of threshold and restoring rate
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Pile-up rejector and live-time corrector
N968: Manuals
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