Category : Spectroscopy, colorimetry, photometry, fluometry > Data acquisition board for multichannel scaling/photon counting

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A new data acquisition board for multichannel scaling/photon counting has been released by PicoQuant. The new product is a short PCI slot card with integrated discriminators. It is an ideal instrument for the acquisition of fluorescence/luminescence decays on the nanosecond to millisecond time scale. Other applications include Optical Time Domain Reflectometry (OTDR), Time-of-Flight Mass Spectrometry and Range Finding. The time bin resolution is 4 nanoseconds and up to 256k bins are available. This results in a usable time span of 1.04 milliseconds. The board's Multi-Stop capability allows efficient recording of long-lived fluorescence decays with correspondingly slow excitation rates. On-board histogram memory is 18-bits deep, allowing the collection of 256k counts per bin without software intervention. Software adjustable discriminators and on-board polarity switches allow the NanoHarp 250 to be interfaced to a wide range of signal and trigger sources, including all common single photon detectors such as Photomultiplier Tubes (PMT) and Single Photon Avalanche Photodiodes (SPAD). Count rates up to 50 MHz can be processed. Histogram data is transferred efficiently by means of bus-mastering DMA. The NanoHarp 250 system software runs on allrecent Windows platforms including Windows 98SE, ME, 2000 and XP. Data can be collected and visualized on-line. An intuitive and clean graphical user interface with comprehensive online help guarantees a short learning curve. The software also supports control for several types of monochromators, permitting the automated recording of Time-Resolved Emission Spectra (TRES). Fluorescence decay analysis is facilitated by direct transfer to the popular FluoFit software. A driver library, including a rich set of example programs will be separately available to support the development of custom software and to aid integration with existing automated instruments. A Linux driver is also under development. The board's powerful programmable logic is software reconfigurable and can be updated for new measurement modes and OEM applications.

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List of all articles in this sub-category Data acquisition board for multichannel scaling/photon counting

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