MPA4T Multiparameter TOF System
Description
It can be used in ultra-fast Multi-scaler and TOF systems, in Time-of-Flight mass-spectrometry and time-resolved single ion- or photon counting. NEW !! Pulse-width evaluation with 100 ps precision enables the user to calculate the area, the pulse height of the detector pulse but also if multiple events have occurred - multiple events have a broader pulse width than single pulses. In operation the sweep is started by a user-supplied start (trigger) pulse. Then subsequent events detected at the stop inputs are recorded, each in a specific time bin corresponding to the time of arrival relative to the start pulse. Compared to non-multi-hit devices, the MPA4T can evaluate stop events at a rate of 10 GHz state changes/sec, in the pulse width mode at 5 GHz. The MPA4T is designed with fully digital circuitry capable of accepting at least 65.000 events at peak (burst) input rates of up-to 10 Gbit per second. The MPA4T has been optimized for the best possible pulse pair resolving while providing state-of-the-art time resolution available in digital designs. Six built-in discriminators can be adjusted for a wide range of signal levels. The single sweep time range enables the user to take data of up to 20 days (54 bit setting) or 30 min (44 bit setting with 16 TAG bits enabled), with a time resolution of 100 ps. In endless and wrap-around mode sweep repetitions with zero end-of-sweep dead time can be accommodated. The high-performance hardware is matched by a sophisticated WINDOWS-based software delivered with each MPA4T - providing a powerful graphical user interface for setup, data transfer and spectral data display. Drivers for LINUX are available.
MPA4T Multiparameter TOF System
Specifications |
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|---|---|
| Active Diameter: | -- mm |
| Peak Quantum Efficiency: | -- % |
| Spectral Range: | 300-2000nm |
Features
Exceptionally high count rate Time Spectrometry System with 100 ps time resolution
5 (6) input channels (START input can be used like a 6th STOP channel)
Time range from nanoseconds to 20 days with 100 ps time resolution (54 bit dynamic range)
Stop pulses are evaluated either for rising, falling edge or both at 10 GHz. For the first time this allows to obtain data on pulse-width with 100 ps precision
"Constant fraction" evaluation of input pulses - interpolates between falling and rising edge
Minimum time between rising and falling edge is 100 ps
Maximum input rates up to 10 Gbit/s
High data transfer rate to PC by dual USB bus
Six operating modes: Stop after sweep, sequential, multi start recording, pulse width (TOT - time over threshold and TUT - time below threshold) and time interval. (Autocorrelation optional)
Fully digital design, no software corrections required
Start- and Stop-Inputs via built-in -2V...+3V discriminators (threshold +/-1.5V adjustable in steps of 183µV)
No dead time between time bins, No missed events, No double counting
On-board 1024 x 6.4ns fast FIFO for ultra fast data acquisition.
Secondary 1GB FIFO (2 GB FIFO opt.) to buffer list-mode or on-line histogramming data transfer into the PC
Simultaneous acquisition and data transfer to PC
On-line sweep summing
Two versatile, software configurable Sync-outputs for triggering of external devices (FAST NIM, TTL)
Tag inputs (16) with 6.4 ns time resolution (i.e. for sequential data acquisition, multi-detector configurations, etc.)
Presettable 48 bit sweep counter; programmable acquisition delay, programmable number of time bins and programmable trigger hold-off after sweep
User configurable "GO"-line for experiment synchronization (compatible with other FAST ComTec devices)
8-bit digital I/O port
Internal test pulser
Applications
TOF Time-of-Flight Spectrometry with exceptional dynamic-range and time resolution
Position Sensitive Detectors (delay line type: start, 2 x 2 delay signals, time / anode)
Multi-scaling with very high burst count rates
Pulse width evaluation with 100 ps precision
Static TOF SIMS secondary electron Mass-spectrometry - used for example in analyzing molecules from biological samples
Quantum Cryptography research
Laser-induced fluorescence spectroscopy in biological samples
Laser-induced photo-electron spectrometry to analyze the electronic state
of gas and solid state samples
Single photon / single molecule counting
Multi-level measurements e.g.for mass spectroscopy with very strong (pile up) lines by pairing input channels
LIDAR (1.5 cm spatial resolution)
Six - channel ultra high speed and huge memory logic analyzer
Evaluation of logic circuits / search for spurious signals
"Area measurement" in high energy physics
by width measurement of pulses with constant shape
Multiparameter / correlation / coincidence measurements
Ultra fast multiparameter list mode data acquisition with up to 16 external ADCs, multiscalers or Time-of-Flight front-ends
Ultra fast single parameter list mode data acquisition
Ultra fast multi-spectrum acquisition and display
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Frequently Asked Questions
The MPA4T Multiparameter TOF System can be used in ultra-fast Multi-scaler and TOF systems, in Time-of-Flight mass-spectrometry, and time-resolved single ion- or photon counting.
The pulse-width evaluation feature of the MPA4T allows the user to calculate the area, pulse height, and detect multiple events with a broader pulse width than single pulses, with a precision of 100 ps.
The MPA4T can evaluate stop events at a rate of 10 GHz state changes/sec in the pulse width mode, and 5 GHz in general.
The MPA4T is capable of accepting at least 65,000 events at peak (burst) input rates of up to 10 Gbit per second.
The MPA4T offers six operating modes: Stop after sweep, sequential, multi start recording, pulse width (TOT - time over threshold and TUT - time below threshold), time interval, and autocorrelation (optional).