What makes CVD diamond(tyep IIa single crystal ) a good detector?

Low z

Low absorption

High thermal conductivity

Radiation hardness

Wide band gab

These charateristics result in diamond detectors with... high sensitivity, good special resolution, low noise, low capacitance.

CVD diamond (also known as Synthetic diamond, Chemical vapor deposition diamond,  laboratory-grown diamond,  laboratory -created diamond )is diamond produced in an artificial process, as opposed to natural diamonds, which are created by geological processes. 

The advantages of CVD diamond growth include the ability to grow diamond over large areas and on various substrates, and the fine control over the chemical impurities and thus properties of the diamond produced. Unlike HPHT, CVD process does not require high pressures, as the growth typically occurs at pressures under 27 kPa

 Specification of  CVD diamond plate . 

Advantages

1.Large size(up to 12 * 12 * 3 mm)
2.Hardness and high mechanical stability 
3. Scratch proof and wear resistance.
4.Wide spectral transparency UV to THz
5.High Strength and Great Thermal Stability
6.White Color (from brown to colorless)
7.Other quality index could reach the international standard.