Fast non inverting preamplifier, negative output (EOUT)
Input impedance: 50 Ω AC coupled
Output high impedance (EOUT)
Bipolar output high impedance (FOUT)
Test input (TEST IN) impedance: 50 Ω, negative polarity
FOUT/DET IN gain (FOUT negative lobe):
FC version: 700÷2500
PR version: 500÷1500
FOUT/TEST IN gain: 1/100 of DET IN gain
Output noise (peak to peak) < 40 mV
Up to 3 kV detector bias voltage (HV IN)
Rbias: 200 kΩ
The CAEN Mod.A1427 is a fast and low noise current preamplifier with AC coupled input. It hosts two outputs: EOUT (unipolar) that can be integrated to calculate the energy associated to the input signal and FOUT (bipolar) that can be used to calculate the rate of the input signal, discriminating the negative pole using the A1428 discriminator that is specifically designed to fit with A1427. The discriminator thresholds is settable from -1 to -100 mV via a 10 turn rotary handle with lock.
A1427 Kit configuration is also available, it includes the A1427 and the A1428 assembled together, both for fission chambers and for proton recoil detectors.
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Image
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Name
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FORM FACTOR
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NO. OF CHANNELS
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DESCRIPTION
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SENSITIVITY
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COMPATIBLE DETECTORS
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A1422H |
Single in-line package |
1 |
Low Noise Fast Rise Time Charge Sensitive Preamplifiers (SIP) |
1/5/45/90/400/450<br>mV/MeV (Si) |
Silicon (Si) |
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A1424 |
Desktop |
1 |
Fast Charge Sensitive Preamplifier |
3.6 mV/fC |
Diamond |
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A1422C/D |
Desktop |
8 |
Low Noise Fast Rise Time Charge Sensitive Preamplifier |
5 (mV/MeV) (Si) |
He3 / BF3 Tubes |
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A1422 |
Desktop |
1 / 4 / 8 |
Low Noise Fast Rise Time Charge Sensitive Preamplifiers |
1/5/45/90/400/450<br>mV/MeV (Si) |
He3 / BF3 Tubes<br>Proportional Counters<br>Ionization Chambers<br>Segmented Silicon <br>Silicon (Si) |
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A1429 |
Desktop |
64 |
Charge Sensitive Preamplifier |
20/45/90/200/400<br>mV/MeV (Si) |
GEM Segmented Silicon |
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A1427 |
Desktop |
1 |
Low Noise Fast Current Neutron Flux Preamplifier |
FC: 700÷2500<br>(Trimmer adjustable)<br>PR: 500÷1500<br>(Trimmer adjustable) |
Fission Chambers<br>Proton Recoil |
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A1422E/F |
Desktop |
2 / 4 |
Low Noise Fast Rise Time Charge Sensitive Preamplifiers |
200 mV/MeV (Si) |
Silicon (Si) |
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A1442 |
Desktop |
16 / 32 |
Charge Sensitive Preamplifier |
Selectable 20/100<br>mV/MeV (Si) |
GEM Segmented Silicon |
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New A1421 |
Desktop |
1 |
Preamplifier and Discriminator for 3He tubes |
30 mV/fC on HiZ<br>(15 mV/fC on 50 Ω) |
He3 / BF3 Tubes |
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R1443 |
19” rack unit |
32 / 64 |
Preamplifier Unit for 3He tubes |
2.25 V/pC |
He3 / BF3 Tubes |
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A1423B |
Desktop |
1 |
Wideband Preamplifier |
Selectable From<br>+18 dB to +54 dB |
Diamond PMT<br>Scintillators<br>SiPM / MPPC |
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A1426 CARDARELLI |
Desktop |
1 |
Matched Charge Preamplifier |
Up to 5 mV/fC |
Diamond |
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A1436 / A1436A |
Desktop |
1 / 8 |
Differential Input Low Noise Transimpedance Amplifiers |
Programmable<br>10<sup>9</sup>/10<sup>8</sup>/10<sup>7</sup>/10<sup>6</sup>/10<sup>5</sup>/10<sup>4</sup>/10<sup>3</sup><br>(V/A), 10<sup>9</sup> V/A (A1436 only) |
Diamond PMT / Scintillators<br>Silicon (Si) |
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A1425 |
Desktop |
1 |
Fast Charge Sensitive Preamplifier |
3.6 mV/fC |
Diamond |
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A422A |
Desktop |
1 |
Charge Sensitive Preamplifier with Timing |
5/30/60 mV/MeV (Si) |
Proportional Counters<br>Ionization Chambers<br>Silicon (Si) |
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Packaging |
Shielded box, Dimensions: |
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No. of Channels |
1 |
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Detector Input |
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HV Input |
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Test Input |
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Fast Out |
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Energy Out |
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GAIN Voltage |
Trimmer adjustable:
(referred to amplitude of FOUT negative lobe, with DET IN signal; with TEST IN input, GAIN = 1/100 of nominal value)
FOUT/EOUT amplitude ratio:
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Output noise |
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Power requirements |
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