Large, rectangular photodiode detects electrons

OPTO DIODE AXUV300C photodiode provides a large 331mm2 rectangular active area and delivers high-performance detection of photons, electrons and radiation. Device package includes 2 anode and 2 cathode pins, which allows for more versatile connections. There is no window to allow detection of energy shorter than 200nm. Product delivers a response time of 15 microseconds. The large active area device features electron detection as low as 200eV. Storage and operating temperatures range from -10°C to +40°C (ambient) and from -20°C to +80°C in nitrogen or vacuum environments. The lead soldering temperature is 260 °C. 

click here for more info