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Pixie-500e 4通道 500MHz

发布时间:2017-01-10浏览次数:467
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  Four-channel 500 MHz PXI Express Digital Processor

  FEATURES

  •  Four channel 14 bit 500 MSPS pulse processor.

  •  32k MCA spectrum per channel.

  •  Processor peaking times adjustable from 0.048 - 63.4 μs.

  •  Waveform capture and Pulse Shape Analysis.

  •  Sophisticated pile-up inspection.

  •  Sub-nanosec Timing Resolution.

  •  PXI Express platform: x4 link.

  •  Front and back panel digital I/O signals.

  OVERVIEW

  The Pixie-500 Express is a 4-channel digital pulse processor on a single 3U CompactPCI/PXI Express card. Designed for fast detectors such as LaBr3 , fast silicon strip detectors, plastic scintillators, or high rate HPGe applications, the Pixie-500 Express not only offers very high speed waveform acquisition but also pulse height measurements and time stamping for event reconstruction.

  Incoming signals are digitized at a rate of 500 MSPS with a 14-bit ADC. The digital data stream is used for triggering, pile-up inspection and filtering in real time. Waveforms with 2 ns sampling intervals can be stored in an on-board 256 MB FIFO. Pulse height reconstruction, accumulation of a 32k MCA spectrum for each channel, and optional pulse height analysis are performed on an event-by-event basis by a SHARC digital signal processor and a Virtex-4 FPGA. Waveforms and spectra can be read out through the x4 PCI Express data interface at rates of several hundred MByte/s (theoretical limit 800 MByte/s per slot). The readout does not interfere with the data acquisition.


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