DSP microcontroller 100 - 5 000 VDC | PX5-HPGe

The PX5-HPGe is a modified version of Amptek’s PX5 signal processor and power supply. A custom power supply board is installed in a standard PX5, providing the higher bias voltages needed by an HPGe detector along with the higher preamp power voltages and currents required by most HPGe preamplifiers. A custom front panel is installed, which mates with industry-standard connectors on HPGe detector/ preamp modules. The signal processing circuitry is unchanged from a standard PX5. Amptek’s PX5-HPGe combines a high performance digital pulse processor with the power supplies needed for standard cryogenic HPGe detectors. It replaces a conventional shaping amplifier and multichannel analyzer, providing very high performance signal processing in a single compact, low power module, replacing multiple bulky NIM modules in a traditional solution. The digital signal processing provides several advantages over analog solutions: lower electronic noise, reduced ballistic deficit, higher throughput, enhanced stability, and more configuration options to better optimize the system for particular applications. It supports USB, Ethernet, and RS232 communications protocols and has numerous auxiliary I/O options (MCS mode, 8 SCAs, a gate input for Compton suppression, etc). The PX5-HPGe PWR board provides a bias voltage up to ±5 kV, with a hardware plug to change polarity. It includes an HV inhibit line (to turn off the HV supply if the detector is too warm). The PX5-HPGe PWR board also provides low voltages of ±12 VDC and ±24 VDC, at 80 and 40 mA respectively, using a standard 9 pin preamp power connector.