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Preamplifiers – Detectors

Preamplifiers - Detectors

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Overview

The Preamplifiers – Detectors family provides a comprehensive set of front-end solutions for reading out a wide range of radiation and particle detectors, including silicon and diamond sensors, photodiodes, scintillators, neutron tubes, and large segmented arrays. These modules convert detector charge or current signals into low-noise voltage outputs while preserving timing and energy information, ensuring optimal coupling with shaping amplifiers, discriminators, and digitizers.

The family spans single-channel to high-density multi-channel systems, with architectures optimized for applications such as spectroscopy, fast timing, position-sensitive neutron detection, and large-area detector arrays. Solutions include charge-sensitive, transimpedance, and wideband preamplifiers with configurable gain, bandwidth, and biasing options. Many units integrate programmable parameters, differential signaling for noise immunity, and support for remote control and long-distance detector cabling. Designed for demanding environments—including high radiation, vacuum systems, and high counting rates. These preamplifiers deliver stable operation, low equivalent noise, and flexible integration into modern DAQ chains.

Highlights

  • Charge-sensitive, transimpedance, and wideband preamplifiers for diverse detector types

  • Configurable gain, shaping, and biasing with low-noise, high-rate performance

  • Multi-channel and high-density solutions for segmented and position-sensitive detectors

  • Designed for harsh environments with long-cable operation and robust detector coupling


Preamplifiers – Detectors Models

Grid Compare
Image
Name
FORM FACTOR
NO. OF CHANNELS
DESCRIPTION
SENSITIVITY
COMPATIBLE DETECTORS
A1422H

A1422H

Single in-line package

1

Low Noise Fast Rise Time Charge Sensitive Preamplifiers (SIP)

1/5/45/90/400/450
mV/MeV (Si)

Silicon (Si)

A1424

A1424

Desktop

1

Fast Charge Sensitive Preamplifier

3.6 mV/fC

Diamond

A1422C/D

A1422C/D

Desktop

8

Low Noise Fast Rise Time Charge Sensitive Preamplifier

5 (mV/MeV) (Si)

He3 / BF3 Tubes

A1422

A1422

Desktop

1 / 4 / 8

Low Noise Fast Rise Time Charge Sensitive Preamplifiers

1/5/45/90/400/450
mV/MeV (Si)

He3 / BF3 Tubes
Proportional Counters
Ionization Chambers
Segmented Silicon
Silicon (Si)

A1429

A1429

Desktop

64

Charge Sensitive Preamplifier

20/45/90/200/400
mV/MeV (Si)

GEM Segmented Silicon

A1427

A1427

Desktop

1

Low Noise Fast Current Neutron Flux Preamplifier

FC: 700÷2500
(Trimmer adjustable)
PR: 500÷1500
(Trimmer adjustable)

Fission Chambers
Proton Recoil

A1422E/F

A1422E/F

Desktop

2 / 4

Low Noise Fast Rise Time Charge Sensitive Preamplifiers

200 mV/MeV (Si)

Silicon (Si)

A1442

A1442

Desktop

16 / 32

Charge Sensitive Preamplifier

Selectable 20/100
mV/MeV (Si)

GEM Segmented Silicon

A1421
New

A1421

Desktop

1

Preamplifier and Discriminator for 3He tubes

30 mV/fC on HiZ
(15 mV/fC on 50 Ω)

He3 / BF3 Tubes

R1443

R1443

19” rack unit

32 / 64

Preamplifier Unit for 3He tubes

2.25 V/pC

He3 / BF3 Tubes

A1423B

A1423B

Desktop

1

Wideband Preamplifier

Selectable From
+18 dB to +54 dB

Diamond PMT
Scintillators
SiPM / MPPC

A1426 CARDARELLI

A1426 CARDARELLI

Desktop

1

Matched Charge Preamplifier

Up to 5 mV/fC

Diamond

A1436 / A1436A
Coming Soon

A1436 / A1436A

Desktop

1 / 8

Differential Input Low Noise Transimpedance Amplifiers

Programmable 10⁹/10⁸/10⁷/10⁶/10⁵/10⁴/10³ (V/A), 10⁹ V/A (A1436 only)

Diamond PMT / Scintillators Silicon (Si)

A1425

A1425

Desktop

1

Fast Charge Sensitive Preamplifier

3.6 mV/fC

Diamond

A422A

A422A

Desktop

1

Charge Sensitive Preamplifier with Timing

5/30/60 mV/MeV (Si)

Proportional Counters
Ionization Chambers
Silicon (Si)