Chickadee-32
32 Channel Digitizer
The CHK-32 is a high performance data acquisition system with embedded Linux. Standard GammaSphere firmware has been ported to this digitizer. It is serving all 32 channels. The firmware can also integrate the HPGe signal with several running windows, in order to perform pole-zero compensation of the RC-reset preamplifier signal.
GammaSphere BGO scintillators are also served with the same firmware. Other scintillators can be used as well: CsI(Tl), NaI(Tl), LYSO, or BC400. Sub-nanosecond time resolution can be achieved with fast detectors.
Additional specifications below
| Channel Count | 32 |
| Bit Resolution | 14 |
| Sampling Frequency (MHz) | 100 |
| Analog Inputs | Individual LEMO’s or flat ribbon cable (FERA pinout) – specified while placing the order |
| Waveform Length | Up to: 81.92 μs (100MHz) |
| Trigger Modes | Hit Pattern, Multiplicity |
| Real-Time Pulse Processing | 4-part pulse integration, Pulse height, Trigger height, Timestamping |
| Waveforms & Histograms | Waveforms, Histograms (in-firmware), Pulse Summaries Additional customization available on a contract-basis |
| Analog Outputs | Arbitrary Waveform Generator (LEMO) Internal Filter Output (LEMO) |
| Readout Options | Internal Storage 1 Gbps streaming ethernet 10 Gbps streaming optional |
| Physical Dimensions (cm) | 20.3 x 25.4 x 7.0 |
| Weight (kg) | 1.35 |
| Form Factor | VME board (power only from the VME backplane) |
| Digital I/O | 4 LEMO Input 4 LEMO Output |
| Synchronization | Sync Timestamp Input (White Rabbit or GPS) External Clock Input |
| Computer Interfaces | USB and Mini-USB Serial UART Gigabit Ethernet |
| Power | VME +5V from the backplane |
| API | Full-function C API Bash Utilities for Quick Operation |
| Operating System | Embedded Linux |