ROSSPAD

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SiPM Readout Module for x-ray and gamma-ray Spectroscopy and Imaging

Product Description

The ROSSPAD is a readout module for detecting and measuring the signals from silicon-photomultipliers / multi-pixel-photon-counters. Detector modules can easily be connected to the ROSSPAD via 2 multipin connectors. This interface offers a connection to all 64 input channels and the bias voltage. Events on each channel are detected at a high rate, with a configurable dynamic range between -400pC and -16nC. The system is designed to measure negative input charges.
In spectroscopy mode, the ROSSPAD can readout all 64 channels with a rate of up to 20 000 frames per second. The event energy is digitized with 12-bit resolution, and the pulse-height is transmitted along with the timestamp, number of channels, and frame data. The trigger threshold can be adjusted individually for each of the 64 channels.
In count mode, the number of events over the threshold is readout for all 64 channels. Each channel has a counter which increments each time a trigger pulse is detected. The maximum event detection rate is approximately 20 000 frames per second. The readout interval can be set by the system between 50µs – 1s.
The ROSSPAD provides the acquired data and is controlled via an Ethernet interface. The module is powered by a 5V power supply or a PoE (Power-over-Ethernet) module. It also offers the possibility to synchronize several systems via a sync interface. An API is available, allowing the design of customer-specific readout software. The ROSSPAD can be purchased a complete system with a scintillator and detectors from Hamamatsu or ON semiconductor (SensL). Upon request, the ROSSPAD can be made to fit the other detectors.

Product Features

Detectors Hamamatsu S14161-6050HS SiPM, SensL MICROFJ-60035-TSV SiPM
Application Gamma cameras, spectroscopic detectors, scintillator based pixelated detectors, absorber in Compton cameras
Number of inputs 64
Input charge range -400 pC / -4 nC / -8 nC / -16 nC
Shaping time 200 ns / 400 ns / 800 ns / 1600 ns
Trigger threshold Programmable. 8 bit for each channel
Power consumption Ca. 3.2 W
Max event detection rate Ca. 20 000 frames per second
Charge value ADC resolution 12 bit
Data interface Ethernet
Dimensions 50 mm x 50 mm x 48.5 mm
PoE input voltage range 36 V to 57 V DC
Power 5 V