Diamond grown with chemical vapor deposition (CVD) has been found to be an excellent material for detector applications. Diamond is a semiconductor with a large band gap (5.45 e V) which allows for production of detectors with very low leakage currents without the need for cooling below room temperature . The high electron and hole mobility in the diamond material ensures very fast signal response with very short rise times and total pulse width.
Detector Grade Diamond, with a nitrogen content of < 1 ppb, is available in both polycrystalline and single crystal. We can custom package your detector to meet your specific needs with our in-house design packaging and manufacturing capabilities. Connectors are available in a range of packages, include BMC/ SMA and TNC. Metalization is typically 50 nm Chromium and 200 nm Gold.
Thin polycrystalline Electronic Grade Diamond offers the advantage of up to 20 mm in diameter. The lower absorption and radiation tolerance of the diamond enables lower times between replacement, resulting in lower costs. The harsh radiation environments of third and fourth generation light sources and high energy physics have found diamond to be the ideal material for position sensitive detectors.
What Makes Diamond a Good Detector?
- Low Z
- Low Absorption
- High Thermal Conductivity
- Radiation Hardness
- Wide Band Gap
These characteristics result in diamond detectors with…. high sensitivity, good special resolution, low noise, low capacitance