Outstanding Multichannel Analyser
- Fast MCA for all scintillators
- Programmable, autonomous gain stabilization
- AI-powered neutron detectors
- Low-noise SiPM operation
- Autonomous Analyse and Alarm
- Customizable firmware
- Field upgradable
- Post-COVID design avoids chip shortages
Outstanding Capabilities
- Gain stabilization keeps gain, trigger threshold and maximum measurable energy a constant.
- With built-in statistical analysis the detector acts as a portal monitor without a host computer.
- Embedded neural network for very efficient neutron detectors, or improved energy resolution in SrI2(Eu)
- Designed for PMT and SiPM, the MCA includes the sensor power supply.
Outstanding design
- Fully updated designs use reliable supply chain.
- The MCA can operate autonomously, creating alarms and storing thousands of energy spectra.
- A Tensorflow toolchain is used to train the embedded neural network for pulse shape discrimination. To support that, the MCA can record the necessary pulses.
- Embedded code is safe against reverse engineering. At the same time, it can be upgraded in the field via USB commands and encrypted files.
Applied Radiation Measurements in:
- Industry: Mining, Surveys, Monitoring
- Security: Portal monitors, Area monitors
- Research: Scintillators and Algorithms
- Environment: Soil analysis, Carbon sequestration
- Satellite: Pulsars, Solar flares
- Phenomena: Terrestrial Gamma-Flashes
Equipment for Instrument Developers
- We provide multichannel analysers for gamma ray spectroscopy as well as complete detector systems.
- We serve developers with open-source software and offer customization to let you build unique instrumentation with a comeptitive advantage.
- An embedded 32-bit ARM processor performs preprogrammed and custom analysis.
Single-Board MCA for SiPM
Without the connectors, the board stack for MCA and SiPM is only 13mm tall.
Low Noise ⇒ Low Triggerthreshold
Single-Board MCA for SiPM
- The SiPM-2000 is an all new design that fits the MCA and the SiPM power supply onto the same board.
- With the SiPM carrier board, the entire board stack is only 13mm tall.
- The low-noise design allows incredibly small trigger thresholds – at a full energy range of 1.6MeV.
- Built-in autonomous gain stabilization: Keeps gain, trigger threshoold and maximum measurable energy constant over temperature.
Measurements:
- Energy spectra: 4K×32-bit and narrower
- Count rates, dead times at up to 4M γ/s
- Embedded gain stabilization, with LED where necessary
- List mode with programmable time resolution
- Scintillator pulse capture at 24MHz to 120MHz
Intelligent Instrument Cores
- We empower instrument builders who want to focus on building a business without having to re-invent the wheel.
- Our instrument core technology delivers physics data and statistical analysis.
- Adaptive gain stabilization preserves MCA gain, trigger threshold, and maximum measurable energy over the entire temperature range. So your spectra always look the same.
Response to a passing source, in 50ms time steps; closest approach at T=3s.
Built-in Analysis:
- On board sample and background measurement
- Built-in statistical analysis to compare sample activity against background
- Built-in portal monitor with background tracking and programmable false-alarm probability
- 2-channel logger, 1024 samples, for raw data and computed quantities
- 50ms to 12.5s time slices
- Logger provides pre-alarm history.
Search and Alarm
- To search for meaningful differences in radioactivity, you can first store a background spectrum on the MCA. Then switch to sample mode and repeatedly measure new samples or locations. For each sample the MCA reports the likelihood that the sample is more radioactive than the background.
- In portal monitor mode, you can walk around with the detector. The MCA tracks slowly changing backgrounds without causing an alarm. But a sudden increase in activity, due to a passing source will cause an alarm.
- In both cases the user can set a threshold by choosing a false-alarm probability.
NaI-pulses recorded on a PMT-2000
Pulse shape capture
- 1024 samples, 12-bit depth
- Pulse shape trigger aligns pulses at their peaks.
- Up to 512 16-bit weights can be used.
- Use weights for pulse shape discrimination.
- Use weights for improving energy resolution in SrI2(Eu).
Pulse shape discrimination
- Capture pulses of different classes of radiation; eg alpha/beta, neutron/gamma, etc.
- Use an AI/ML tool to compute the weights for a perceptron (1-layer neural network)
- Download the weights to the MCA.
- Program cuts on the perceptron output to classify incoming events.
