VX1751

The CAEN Mod.VX1751 is a digitizer able to record waveforms along with performing advanced algorithms for online digital pulse processing (DPP) of charge integration and pulse shape discrimination with constant fraction timing and zero-length encoding.

Data is read by a Flash ADC, 10-bit resolution and 1 GS/s sampling rate (2 GS/s using half of the channels in DES mode*), which is well suited for fast signals as the ones coming from fast organic, inorganic and liquid scintillators coupled to PMTs or Silicon Photomultipliers, Diamond detectors and others. The acquisition can be channel independent and it is possible to make coincidence/anti-coincidence logic among different channels and external veto/gating. Multiple boards can be synchronized to build up complex systems.

In the case of DPP mode, data can be saved in time-stamped list mode to support higher input rates and improving the throughput performances.
Piled-up events can be rejected or saved for offline analysis. The acquisition in DPP mode is fully controlled by the CoMPASS software, which manages the algorithm parameters, builds, plots and saves the relevant energy, time, and PSD spectra. In the case of waveform recording mode, the user can take advantage of the CAENScope and WaveDump software to access and save the waveforms.

Libraries and demo software in C and LabView are available for integration and customization of specific acquisition systems.

The VX1751 comes in a VME64X form factor with 4/8 input channels (4 channels in case of DES mode*). The communication to and from the board is provided through the VMEBus and Optical Link interfaces.

(*) NOTE: DES mode is not available with DPP firmware

×Note: VX1751 can be operated with VME8004B / VME8004X / VME8008B / VME8008X / VME8010 / VME8011 / VME8100 / VME8200.
Never use this digitizer with crates VME8001, VME8002, VME8004 and VME8004A. Overheat may damage the module.

The VX1751 fits in the single-slot CAEN VME64X u-crate, which allows you to convert the VME digitizer into a desktop board for lab tests.