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 the latter.
More Information
Channel Count | 10 |
Bit Resolution | 14 |
Sampling Frequency (MHz) | 100 / 250 |
Analog Inputs | LEMO (Max 2Vpp input) |
Waveform Length | Up to: 81.92 μs (100MHz), 32.7 us (250MHz) |
Trigger Modes | Hit Pattern, Multiplicity |
Real-Time Pulse Processing | 4-part pulse integration, Pulse height, Trigger height, Timestamping |
Data Products | Waveforms, Histograms (in-firmware), Pulse Summaries Additional customization available on a contract-basis |
Analog Outputs | Arbitrary Waveform Generator (LEMO) Filter Output (LEMO) |
Readout Options | Internal Storage (future: 1 Gbps streaming ethernet) |
Physical Dimensions (cm) | 20.3 x 25.4 x 7.0 |
Weight (kg) | 1.35 |
Form Factor | Benchtop |
Digital I/O | 4 LEMO Input 4 LEMO Output |
Synchronization | Sync Timestamp Input (ideal for White Rabbit or GPS pulse-per-second) External Clock Input |
Computer Interfaces | USB and Mini-USB Serial barrel jack Gigabit Ethernet |
Detector Bias | 10-90V, 4mA |
Power | 5V DC Barrel Jack |
User Interface | Easy-to-use Web-based interface (no installation required!) |
API | Full-function C API Bash Utilities for Quick Operation |
Operating System | Embedded Linux |