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Neutron Detection

The neutron coincidence counting is one of the fundamental techniques for non-destructive assay. CAEN designed a new platform of devices that addresses the current situation of limited availability of maintainable instrumentation and reflects the recent advances in microelectronics. R777x and R7780 satisfy the needs of attended and unattended measurements, bringing improvements from all perspectives: guaranteeing nominal performances in a wider range of measurement conditions, combining bigger storage capability, modern user interfaces and low power consumption.

Overview

The new platform of devices for Neutron Detection is designed to collect the signals from neutron detectors, process and convert them into digital information and store them in data files. R7771 and R7780 share a common programmable hardware with industrial grade components for high reliability even in case of high temperature operational conditions; they embed an FPGA for generating time stamped list of neutron signals for up to 32 input channels. The internal microprocessor records the data, reproduces the functionality of shift register, multiplicity register and pulse train recorder. Each module provides a web interface for board firmware upgrade, file management, information retrieval and (R7780 only) data readout. High voltage (+2000 V / 1 mA) and Low Voltage (+5 V / 1 A) power supplies are integrated in the modules.

Moreover CAEN designed a complete readout chain tailored for 3He tube detectors. R5560, that is a waveform digitizer with programmable FPGA, combined with R1443 preamplifier. This represents a complete data acquisition system for neutron detection: thanks to its firmware/software features, it is possible to perform position reconstruction as well as energy and ToF spectra acquisition, matching the typical requests of experimental setups at neutron spallation source facilities and nuclear safety institutions.

R7780

The R7780 is a complete readout, acquisition and analysis module for up to 8 neutron detectors that can work in unattended mode. It can be operated rack mount or as a standalone unit. The device combines the functions of a Shift Register and a Pulse Train Recorder. The eight single-ended TTL inputs (LEMO) feature independent counting capability. Moreover, adjustable input thresholds give the possibility to compensate TTL signal voltage drops in case of long- distance use.

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R5560 + R1443 + R8033

The R5560 is a 2U, 19″ rack-mount 128 Channels 14-bit 125MS/s Open FPGA Digitizer Family, designed to attain programmable data processing capabilities. The R5560 + R1443 preamplifier is an ideal solution for Neutron scintillator detectors with Gamma Neutron discrimination. The platform is customizable taking advantage of the powerful SoC mounted onboard to write a custom pulse processing algorithm on the open FPGA as well as build a middleware/software that fits the needs of the application of interest.

R5560 Product page | R1443 Product page | R8033 Product page 

R7771

The R7771 is a Neutron Pulse Train Recorder for the acquisition of signals from 32 neutron detectors. It provides the time-stamped list of TTL pulses from neutron detector front-end electronics with 10ns pulse pairs resolution independently per each channel. The R7771 provides the most complete information on neutron counting, giving the capability to characterize nuclear material in passive mode and to analyse the transients in active nuclear material interrogation. The 32 independent inputs allow for the acquisition from big volume assay systems composed by multiple neutron detectors.

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Models

Model Image Operating Modes Functions Power Supply Open FPGA Communication Interface Actions
R7780 R7780 Attendend and Unattended Multiplicity Register, Pulse Train Recorder High and Low Voltage No USB2.0 and Gigabit Ethernet QUOTE
R5560 R5560 Attendend and Unattended Digital Signal Processing (ToF, Energy, Position reconstruction, PSD, etc), Pulse Train Recorder None Yes USB3.0 and 4 x 1 Gigabit Ethernet QUOTE
R7771 R7771 Attendend Pulse Train Recorder High and Low Voltage No USB2.0 and 10/100T Ethernet QUOTE

Interfaces & I/O

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Software

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Request info

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Brochure

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