The MCA527 is a battery powered high performance 16K Multi-Channel Analyzer/Multi-Channel Scaler module with the performance of a laboratory grade MCA. High voltage supply for detector and preamplifier power supply are integrated as well as an internal coarse amplifier and digital filtering and analysis. Together with a detector it forms a small-size gamma spectroscopy system, which is well suited to the demands of field measurements for international safeguards, environmental monitoring, nuclear waste treatment facilities, radioactive transport control and similar applications.

Amplifier: 

• Coarse amplifier prefilter with amplifications in steps of 2, 5, 10, 20, 50, 100, 200, 500, 1000, corresponding to a full scale ADC;
• Input signal positive or negative;
• Linearity better than 0.1%.
• ADC:
• 14bit, 10 MSps;
• Integral Nonlinearity <0.025%;
• temperature stability TK 50.
• Digital signal processing:
• double differential trigger filter, or single differential low energy low count rate trigger filter;
• Pile-up-suppression, pulse pair resolution ~400ns, depending on trigger filter;
• Automated and manual adjustment of trigger threshold;
• Channel splitting 128, 256, 512, 1k, 2k, 4k, 8k or 16k;
• Differential nonlinearity <1% for 4k channels and 2μs peaking time;
• Automated PZC adjustment, detector decay time constants from 40μs to 1ms can be compensated;
• TRP preamplifier or Resistive feedback selectable
• High voltage:
• Detector HV up to ±5kV, polarity depends on module inserted.
• Power supply:
• Li-Ion batteries, operation time 10-25h, depending on detector connected (tbd).
• Computer Interface:
• USB, RS-232 (38.4, 115.2, 307.2 kBd and 3MBd), Ethernet.
• Mechanical:
• Housing 164 mm x 111 mm x 45 mm without connectors; weight 820g.
• Environmental:
• operational: at least 0 - 50 °C, eventual larger range;
• humidity up to 90%, non condensing, IP42.

Особенности

• Automated base line restorer and threshold adjustment
• Automated or manual pole zero adjustment without oscilloscope
• System dead time and count rate indication
• Dead time correction
• Automated spectrum recording
• Peak stabilization
• Basic analysis functions (energy calibration, FWHM, peak area and integral calculations, spectrum stripping and smoothing)
• File menu: write/read functions with drive/path - and file pick list functions
• Setup menu: ADC, Amplifier, Presets, Memory splitting, MCA mode, MCS mode, Multi spectral recording mode, automated instrument configuration using setup file
• Analysis menu: Energy calibration und further analysis functions defined according the purpose. Energy calibration with linear calibration curve using 2 peaks or energy channel pairs
• Acquire control: Start, Stop, Erase, Presets Incorporated Help texts Print screen for print via system printer (Windows) quick documentation
• Display functions: Automated vertical full scale (VFS), manual and logarithmic VFS, cursor functions, expand and unexpand, ROI setting
• Detection limit formalism: more than 17