Radiation hardness of three-dimensional polycrystalline diamond detectors
Creators
- 1. Department of Physics and Astronomy, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy)
- 2. National Institute of Nuclear Physics (INFN), Via B. Rossi, 1-3, 50019 Sesto Fiorentino (Italy)
- 3. Istituto Nazionale di Ottica (INO-CNR), Largo Enrico Fermi 6, 50125 Firenze (Italy)
- 4. European Laboratory for Non-Linear Spectroscopy, Via Nello Carrara 1, 50019 Sesto Fiorentino (Italy)
- 5. Jozef Stefan Institute, Jamova cesta 39, 1000 Ljubljana (Slovenia)
- 6. Department of Physics, University of Perugia, Via A. Pascoli, 06123 Perugia (Italy)
- 7. National Institute of Nuclear Physics (INFN), Via A. Pascoli, 06123 Perugia (Italy)
- 8. Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia (Italy)
- 9. GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt (Germany)
Description
The three-dimensional concept in particle detection is based on the fabrication of columnar electrodes perpendicular to the surface of a solid state radiation sensor. It permits to improve the radiation resistance characteristics of a material by lowering the necessary bias voltage and shortening the charge carrier path inside the material. If applied to a long-recognized exceptionally radiation-hard material like diamond, this concept promises to pave the way to the realization of detectors of unprecedented performances. We fabricated conventional and three-dimensional polycrystalline diamond detectors, and tested them before and after neutron damage up to 1.2 ×1016 cm−2, 1 MeV-equivalent neutron fluence. We found that the signal collected by the three-dimensional detectors is up to three times higher than that of the conventional planar ones, at the highest neutron damage ever experimented
Additional details
Identifiers
- DOI
- 10.1063/1.4921116;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 106
- Journal Issue
- 19
- Journal Page Range
- p. 193509-193509.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46104762
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- CHARGE CARRIERS; DIAMONDS; ELECTRIC POTENTIAL; ELECTRODES; FABRICATION; MEV RANGE; NEUTRON FLUENCE; PHYSICAL RADIATION EFFECTS; POLYCRYSTALS; RADIATION DETECTORS; RADIATION HARDNESS; SENSORS; SOLIDS; SURFACES; THREE-DIMENSIONAL LATTICES
- Descriptors DEC
- CARBON; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; ELEMENTS; ENERGY RANGE; MEASURING INSTRUMENTS; MINERALS; NONMETALS; RADIATION EFFECTS
Optional Information
- Notes
- (c) 2015 AIP Publishing LLC