HydraHarp 400

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The HydraHarp 400 is a high-end, easy to use, plug and play Time Interval Analyzer (TIA) and Time-Correlated Single Photon Counting (TCSPC) system with scalability for multiple channels (covered by patent DE 10 2008 004 549). It is connected to a PC through a USB 3.0 high speed interface.



HydraHarp 400

Multichannel Picosecond Event Timer & TCSPC Module

  • Compact box with USB 3.0 connection and modular, scalable design (patented)
  • Up to 8 independent input channels and common sync channel (up to 150 MHz)
  • 65536 histogram bins per channel, minimum width 1 ps
  • Count rate up to 12.5 million counts/sec per channel
  • Adjustable input delay for each channel with 1 ps resolution
  • Multi-stop capability for efficiency at slow repetition rates
  • Histogrammer measurement ranges from 65 ns to 2.19 s
  • Time tagging with sustained count rates up to 40 Mcps
  • External synchronization signals for (fluorescence lifetime) imaging or other control events
  • External reference clock input and output
  • Drivers and demo code for custom programming
Input Channels and Sync
Discrimination Constant Fraction Discriminator (CFD) included in all channels, software adjustable
Input voltage range 0 mV to -1000 mV, optimum: -100 mV to -500 mV
Trigger point falling edge
Trigger pulse width 0.5 ns to 30 ns
Trigger pulse rise/fall time 2 ns max.
External Reference Clock
Input 10 MHz, min. 200 mV, max. 1 V pp, 50 Ohms, AC coupled
Output 10 MHz, 300 mV pp, 50 Ohms, AC coupled
Time to Digital Converters
Minimum time bin width 1 ps
Electrical time resolution < 12 ps rms
Full scale range – histogram mode 65 ns to 2.19 s (depending on chosen resolution: 1, 2, 4, …, 33 554 432 ps)
Full scale range – time-tagged mode infinite
Maximum count rate per input channel 12.5 × 106 counts/sec
Maximum sync rate 150 MHz
Adjustable delay range for each input channel ± 100 ns, resolution 1 ps
Dead time < 80 ns
Differential non-linearity < 2 % peak, < 0.2 % rms (over full measurement range)
Histogrammer
Count depth per time bin 4.294.967.296 (32 bit)
Maximum number of time bins 65536
Acquisition time 1 ms to 100 hours
TTTR Engine
T2 mode resolution 1 ps
T3 mode resolution 1, 2, 4, …, 33 554 432 ps
FiFo buffer depth (records) 2097152
Sustained throughput* (sum of all channels) typ. 40 × 106 events/sec (depending on host PC configuration and performance)
Operation
PC interface USB 3.0
PC requirements min. 1 GHz CPU clock, min. 1 GB memory
Operating system Windows 8/10
Power consumption small mainframe < 50 W, large mainframe < 100 W at 100 to 240 VAC

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