How does it work?

Libera Spectra processes signals from semiconductor detectors in analog and digital domain.

Outputs from detector preamplifiers are directly connected to signal inputs on Libera Spectra instrument. The analog part performs pulse shaping and amplification (50 dB) of input signal. Fast 16 bit ADCs sample all input channels at 100 MHz or 150 MHz sampling rate.


All the digital signal processing is done in Xilinx Virtex-6 FPGA:

• pulse height calculation
• time-stamping
• pile-up rejection
• dead-time statistics

Processed data is transferred to the end user as a histogram or list mode data via ethernet.

Spectroscopy data can be visualized trough the provided GUI or integrated in the control system.