Specifically designed for neutron detectors as 3He or BF3 tubes in counting applications

Gain: 30 mV/fc on HiZ (15 mV/fC on 50 Ω)

Discriminator with adjustable threshold

Analog and Logic discriminator output

Compact size

External HV input on BNC connector (feeding the internal decoupling circuits)

Detector inputs on BNC or HN connectors

Input bias voltage: ± 4 kV Max

Test input on LEMO (1 pF charge injection capacitors)

Full counting acquisition system in combination with R7771 Neutron Pulse Train Recorder or R7780 Shift Register

Fast, low noise inverting preamplifier

Four available sensitivities (Si equivalent):

• 1 mV/MeV – COMING SOON

• 5 mV/MeV

• 45 mV/MeV

• 90 mV/MeV

• 400 mV/MeV

• 450 mV/MeV

Up to 1000 pF detector capacitance supported

1, 4 and 8 channel model available

Up to 2 kV (positive or negative) detector bias voltage

Fast, low noise inverting preamplifier

Gain 5 mV/MeV ^{(Si equivalent)}

Positive or negative input signals

8 input channels

Up to 200 pF detector capacitance supported

Up to 2000 V (positive or negative) detector bias voltage

Low noise input stage composed JFETs diode protected

Fast, low noise inverting preamplifier

Gain 200 mV/MeV ^{(Si equivalent)}

Positive or negative input signals

2 or 4 input channels

Up to 700V (positive or negative) detector bias voltage

Low noise input stage composed JFETs diode protected

Fast, low noise inverting preamplifier

Positive or negative input signals

Four available sensitivities (Si equivalent):

• 1 mV/MeV – COMING SOON

• 5 mV/MeV

• 45 mV/MeV

• 90 mV/MeV

• 400 mV/MeV

• 450 mV/MeV

Up to 1000 pF detector capacitance supported

Up to 800 V (positive or negative) detector bias voltage

Bandwidth: ~ 1.5 GHz (-3 dB)

Positive or negative input signals

Gain range: from +18 dB to +54 dB

Output voltage: ± 1V

Input and output impedance 50 Ω, SWR<1.5:1

Noise Figure: 7 dB @ 1 GHz

Up to 750 V (positive or negative) detector bias voltage

Fast, low noise inverting preamplifier specifically designed for Scintillation Detectors

Variable sensitivity from 0.8 to 10 mV/pC

Fast output for timing measurements

Test input for calibration

Fast, inverting preamplifier

Sensitivity of 3.6 mV/fC

ENC of 0.16 fC (1000 e)

Output impedance of 50 Ohm

Output range 0 to 1 V

Up to 1 kV (positive or negative) detector bias voltage

Fast, non-inverting preamplifier, positive output

Up to 5 mV/fC sensitivity

ENC of 0.3 fC (2000 e)

Input impedance can be matched to a 50 Ohm transmission line

Amplifier can be very far from the detector (up to 100m)

Output range 0 to 1 V

Output impedance of 50 Ohm

Up to 1 kV (positive or negative) detector bias voltage

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

64-channel

Max. output voltage: +/- 4,5V Diff on 100 Ω termination

Sensitivities: 20, 45, 90, 200, 400mV / MeV

Dimension (mm): 180 x 105 X 25 mm

Input bias voltage (± 400 V Max) (2 LEMO-00 connector)

ESD input protection

TEST pulse input (1 LEMO-00)

Low power consumption (< 50 mW for ch.)

True Differential output (with 100 Ω Diff. back termination)

Noise < 5 KeV on 0 pF input and < 35 eV/pF slope

Rise Time < 20 ns @ 0 pF, < 60 ns @ 200 pF

1/8 independent channels

6/7 Transimpedance range (*): 109, 108, 107, 106, 105, 104, 103 V/A

3nV Eq. Input Noise

Bandwidth from 10/15 kHz to 1 MHz (**)

Differential input configuration:

– CMRR > of 80 dB (A1436)

– CMRR > of 60 dB (A1436A)

Programmable 1 kHz low pass filter

All parameters remotely programmable

Bias voltage programmable up to 10 V (12-bit resolution)

Electric discharges input protection

1/8 single ended output

+12 / -12V Power Supply

Remotely programmable via an RS485 connection

16 channel or 32 channel Version available

x1 or x5 sensitivity switchable via font panel jumper

Maximum output voltage +/- 4,5 V_Diff:

• 200 MeV (Si) @ 1X

• 40 MeV (Si) @ 5X

Dimension (mm): 100 x 50 x 130

Input bias voltage (+/- 400 V Max) (1/2 LEMO 00 connector);

ESD input protection

TEST pulse input with inversion or non inversion buffer (1 or 2 LEMO 00)

Low power consumption for in vacuum use (< 1000 mW for 16 ch. version)

True Differential output (with 100 Diff. back termination)

1 or 2 Sum output, each sum of 16 channel

Noise < 5 KeV on 0 pF input and < 23 eV/pF slope

Rise Time < 10 ns @ 0 pF, < 20 ns @ 200 pF

Positive or negative input signals

Energy sensitivity range of 5, 30 or 60 mV/MeV (Si)

Low noise

Timing output

Up to 5 kV (positive or negative) detector bias voltage

Specifically designed for neutron detectors as He³ in position sensitive application

19” rack unit (height = 2U)

External HV input on SHV connector (feeding the internal decoupling circuits)

Detector inputs on SHV connectors

Test input on BNC (1 pF charge injection capacitors)

Total gain 2.25 V/pc

Rate capability: >100 kHz per tube

Differential outputs on RJ45 connectors

Three available versions:

• 32 channels – R1443A

• 64 channels – R1443B

• 32 channels with 16 independent HV inputs (1 per tube) – R1443C

Full position-sensitive 3He acquisition system in combination with R5560 digitizer

240 or 100 Vac, 50-60 Hz input available