Preamplifiers – Detectors

Preamplifiers - Detectors

Photo of Preamplifiers – Detectors

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.

  • 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

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)