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Pixie4 4通道 75MHz

发布时间:2017-01-10浏览次数:468
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  Pixie4

Four-channel 75 MHz PXI Digital Processor

  FEATURES

  •  Four channel 14 bit, 75 MSPS pulse processor.

  •  32K MCA spectrum per channel.

  •  Waveform capture and Pulse Shape Analysis.

  •  Sophisticated pile-up inspection.

  •  Front and back panel digital I/O signals.

  •  Customizable GUI and DSP.

  OVERVIEW

  The Pixie-4 is a 4-channel all digital pulse processor on a single 3U CompactPCI/PXI card. It has been designed for fast high-precision coincidence gamma-ray spectroscopy using HPGe detectors. It is well suited to work with 4-fold Clover detectors and with a large variety of other radiation detectors such as scintillators and silicon detectors. The Pixie-4 not only offers waveform acquision but also high precision pulse height measurements and time stamping for event reconstruction.

  Incoming signals are digitized at a rate of 75 MSPS with a 14-bit ADC. The digital data stream is used for triggering, pile-up inspection and filtering in real time. Waveforms with 13.3 ns sampling intervals and up to 13 μs in length can be stored in an on-board FIFO. Pulse height reconstruction, accumulation of a 32K MCA spectrum for each channel, and optional pulse shape analysis are performed on an event-by-event basis by a digital signal processor and a FPGA. Waveforms and spectra can be read out through the PCI data interface at rates of ~100 MBytes/s.


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