Diamond Detector Introduction
Diamond per say as a detector is not a new technology and as early as 1920's highly selected natural diamonds were being used for UV detectors. The recent commercial available of high purity single crystal diamond with excellent bulk uniformity is however a new development and was launched in 2007 with the creation of Diamond Detectors Ltd (DDL) a spin-out from Element Six Technologies.
Reasons for selecting diamond include :-
Intrinsic Properties
- Low Z (tissue equivalent) .
- Low absorption.
- High thermal conductivity.
- Radiation Hardness.
- Wide band gap 5.5ev (no thermally generated noise).
- High Hole and Electron Mobilities.
Detector Properties
- High sensitivity.
- Good spatial and temporal resolution achievable
- Low leakage currents and stable.
- Low capacitance
Device Advantages
- Intrinsically simple device
- can fabricate robust, compact devices
- High temperature operation (no need for cooling)
Applications Include
- High Energy Physics.
- Medical Therapy/Dosimetry (X-ray & Particle Therapies).
- Synchrotrons and Cyclotrons.
- Radiation Monitoring (nuclear,medical and oil & gas)
- Deep UV (sub 240nm).