PMA Series

Application & Methods PMA Series Photomultiplier Detector Assembly DESCRIPTION SPECIFICATIONS TECHNICAL DOWNLOADS KEY BENEFITS Reliable Photon Detection Across Applications Built to Catch Every Photon PMA Series combines single-photon sensitivity, fast temporal response, and low noise in a fully integrated photomultiplier detector assembly designed for demanding photon-counting workflows. Each unit incorporates a high-performance PMT, high-voltage supply, and optimized preamplifier within a robust, RF-shielded housing designed for stable operation in complex laboratory environments. Users can choose between blue-sensitive or extended-red photocathodes covering 230–920 nm, with optional thermoelectric cooling for reduced dark counts. With integrated shutter options, overload protection, and simple 12 V operation, the PMA Series delivers reliable performance for LiDAR, TRPL, FLIM, FRET, and other time-resolved measurement techniques. Performance Highlights Blue-sensitive and red-extended photocathodes covering 230–920 nm with photocathode quantum efficiency up to 40 % Timing resolution below 180 ps FWHM with low dark noise and optional thermoelectric cooling for improved stability Large 8 mm active area for efficient light collection, easy alignment, and flexible coupling into optical setups Iron or nickel-coated housing with titanium nitride or gold refinement for strong RF and magnetic shielding Integrated HV supply, fast GHz preamplifier, safety shutter options, and robust overload protection Simple 12 V operation and seamless compatibility with PicoQuant TCSPC electronics and time-resolved spectroscopy workflows Specifications PMA 175 PMA 192 Wavelength range 230 – 700 nm 230 – 920 nm Dark counts* (uncooled) < 50 cps < 10 000 cps** Dark counts* (cooled) < 1100 cps** Transit time spread (FWHM) < 180 ps Recommended max. count rate 5 MHz Single electron response width 1.5 ns Pulse rise / fall time 750 ps Connector SMA female Impedance 50 Ohms Polarity negative Input 12 V DC Max. current consumption (uncooled) 200 mA Max. current consumption (cooled) 450 mA OEM unit 134 × 84 × 34 mm (w × d × h) PMA (uncooled) 72 × 84 × 84 mm (w × d × h) Detector active area 8 mm * at 20°C ambient temperature ** lower dark counts might be available on special selection. Please contact us for details. All Information given here is reliable to our best knowledge. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications and external appearances are subject to change without notice. Technical Downloads Datasheet PMA Series With specifications, features and applications of photomultiplier detectors for single photon counting with low noise and fast timing Latest Blog Articles