DT5771

ANALOG IN (front panel)

• Analog signal input connector BNC type

• DC or AC coupled with 300 ns, 2 µs or 22 µs AC time constant options

• Impedance: 50 Ω / 1 kΩ (sw selectable)

• Accepts positive or negative input signals from PMT Anode, Resistive Feedback or Transistor Reset associated preamplifiers and Gaussian or pseudo-Gaussian shaping amplifiers

• The Input range can be 2 V_pp or 10 V_pp when Analog Input Division is activated, divided by the selected gain:

  • AC Gain: x5, x7.5, x12.5, x18, x30, x45, x60, x80

  • DC Gain: x1, x1.5, x2.5, x3, x4.5, x6, x7.5, x9, x12, x15, x18, x22, x27, x36, x45, x54

• The Analog Input Impedance, Coupling, Polarity, Division and Gain options can be defined via Web Interface

Number of Inputs
1

PREAMPLIFIER POWER SUPPLY (rear panel)

• Preamplifier power supply output connector, DB9 type;

• Provides two power rails:

  • ±12 V (± 5%) @ 100 mA (pin 4/ pin 9)

  • ±24 V (± 10%) @ 50 mA (pin 7/ pin 6)

  • ground for standard preamplifiers on pin1 and 2

• Analog output connector, Lemo-00 type.

• A signal from the list of internal analog probes, selectable by the Web Interface, can be provided for monitoring usage:

  • the input signal (after smoothing and polarity inversion)

  • Timing Filter Output

  • Energy Filter Output

  • Baseline

  • Energy Value

• Digital input connector, Lemo-00 type, TTL standard.

• The user can choose via Web Interface the polarity, impedance (1 kΩ/50 Ω), and functionality of the provided digital input signal (minimum pulse width 15 ns):

  • External Time-Stamp Reset

  • External Acquisition (Acquisition Start/Stop)

  • External Reset (Acquisition Reset)

  • External Trigger

  • Veto

  • Gate

• Digital output connector, Lemo-00 type, TTL standard, 50 Ω termination required.

• The user can choose via Web Interface which digital signal of the processing chain can be provided for monitoring purpose:

  • Trigger

  • Energy Valid

  • Energy Gate

  • Baseline Hold

  • Time over Threshold (for Leading Edge Trigger)

  • PUR Valid

  • PUR Inhibit

  • PUR Rejected

  • Run (Acquisition Status)

  • Reset (Acquisition Reset)

  • T0 (Time-Stamp Reset)

POWER (front panel)

• Power LED, color green. It is illuminated when the board power is on.

GPO (front panel)

• Digital Output LED, color green. It blinks when a digital signal of the software-selectable type is generated at the GPO digital output.

ANALOG IN (front panel)

• Trigger LED, color green. It blinks when a trigger is detected on the analog input.

GPI (front panel)

• Digital Input LED, color green. It blinks when a digital signal of the software-selected type is provided at the GPI digital input.

ANALOG INPUT SETTINGS

• Preamplifier Type/Coupling: DC for Resistive Feedback and AC for Transistor Reset (300 μs, 2 μs and 22 μs shaping constant)

• Impedance: 1 kΩ or 50 Ω

• Division: x0.2 (input range 2 V_PP or 10 V_PP)

• Gain:

  • DC Gain: x1, x1.5, x2.5, x3, x4.5, x6, x7.5, x9, x12, x15, x18, x22, x27, x36, x45, x54;

  • AC Gain x5, x7.5, x12.5, x18, x30, x45, x60, x80;

• Smoothing: filter applied on 2¹-2⁹ samples

• Polarity: negative or positive signals

• DC Offset: adjustable in the whole input range, expressed in percentage

ANALOG OUTPUT SETTINGS

• Type: selection of a signal of the data processing to be provided at the analog output

DIGITAL INPUT SETTINGS

• Impedance: 1 kΩ or 50 Ω

• Polarity: negative or positive signals

• Functionality: signal selected from a list of available signals to be used in data processing

DIGITAL OUTPUT SETTINGS

• Type: signal selected from a list of available data processing signals to be provided at the digital output

• Width and Delay: in case of Trigger signal selected, the width and the delay can be defined by the user

PROCESSING SETTINGS

• Trigger Mode: Internal, External, Logic OR/COINCIDENCE/ANTI-COINCIDENCE of Internal and External (width and delay programmable)

• Trigger Algorithm: Leading Edge Trigger (Threshold and Inhibit selectable) or Fast Trigger for Internal Trigger (Shaping Time, Flat Top and Threshold selectable)

• Energy: Peak Detection in case of Leading-Edge Trigger with programmable Energy Gate and Trapezoidal Filter in case of Fast Trigger with selectable Shaping Time, Flat Top, Energy Sampling, Tau and Gain.

• Pileup Rejector: automatic double pileup rejection with paralyzable behavior and PUR Guard Time selectable for Trapezoidal Filter, External signal or automatic simple pileup rejection for Peak Detection  

• Baseline Restorer: moving average configurable from 2¹ to 2¹⁴ samples and Hold Time for Trapezoidal Filter and adjustable Constant value for Peak Detection

• Saturation: automatic Saturation Rejection enable and Saturation Inhibit Time definable

ACQUISITION SETTINGS

• Waveform: selectable analog trace to monitor, definable trigger source, trigger position, decimation factor and acquisition mode, automatic or manual saving

• Energy Histogram: channels re-binning configurable from 1k to 32k, fitting and calibration available, logarithmic scale applicable and automatic or manual saving

• Time Histogram: number of channels selectable from 1k to 16k and definable Time Bin Resolution, logarithmic scale applicable and automatic or manual saving

• MCS: Dwell Time from 1 s to 3600 s with 1 s resolution

USB (rear panel)

• USB 2.0 connector, type C. Allows both for a serial communication port and virtual network connection to a PC.
  USB cable included in the kit.

10/100/1000T (rear panel)

• Ethernet connector, type RJ45. Supports 10, 100 and 1000 Mbit/s connection to a PC or Ethernet hub.
  FTP cableincluded in the kit.

OPERATING SUPPLY VOLTAGE

• +12 VDC (power jack on rear panel)

POWER CONSUMPTION (Typ. @ +12 VDC)

• 15 W