Sensors & Quantum Components Radiation sensors
Diamond Detectors
Sensing elements that collect charge generated by incident radiation.
Good to know
- Charge collection depends on material quality, contacts and bias conditions.
- Active area and thickness influence response to the radiation field.
- Readout electronics and packaging form a separate part of the detector system.
Specifications
What we define for diamond detectors, with units and how each is typically measured. We confirm values for your application in technical review.
Request the datasheetLook up a term in the glossaryDimensions & tolerances
| Parameter | Unit | Typical test method |
|---|---|---|
| Thickness and tolerance (bulk or layer) | mm | Micrometer or optical gauge |
| Lateral size, outline or diameter, and tolerance | mm | Optical measurement |
Crystal & purity
| Parameter | Unit | Typical test method |
|---|---|---|
| Inclusions, growth sectors and defects | Cross-polarised microscopy or birefringence imaging |
Surface & finish
| Parameter | Unit | Typical test method |
|---|---|---|
| Surface roughness per side | nm Ra | Profilometry or AFM |
| Surface finish condition (as-grown, lapped or polished) | Visual inspection to drawing |
Optical performance
| Parameter | Unit | Typical test method |
|---|---|---|
| Radiation type, energy range and beam size | keV | Per application brief |
Electrical & electrochemical
| Parameter | Unit | Typical test method |
|---|---|---|
| Active area or volume | mm² | Optical measurement to drawing |
| Electrode geometry, spacing and metallization | Per drawing | |
| Bias voltage and response | V | Current–voltage and charge-collection test |
| Charge collection distance | µm | Beta-source or ion-beam induced current |
| Dark current and leakage | nA | Current–voltage measurement |
| Contact resistance and ohmic behaviour | Ω·cm² | Transfer-length method |
| Radiation hardness and response stability | Irradiation with post-test response check |
Integration & packaging
| Parameter | Unit | Typical test method |
|---|---|---|
| Packaging, cleanliness and labelling | Per drawing | |
| Certificate of conformance and traceability | Supplier declaration |
Where it is used
Requirement to review
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