A 3D diamond detector for particle tracking

Bachmair, F.; Bäni, L.; Bergonzo, P.; Caylar, Benoit; Forcolin, G. T.; Haughton, I.; Hits, D.; Kagan, H.; Kass, R.; Li, L.; Oh, A.; Phan, S.; Pomorski, M.; Smith, D. S.; Tyzhnevyi, V.; Wallny, R.; Whitehead, David

doi:10.1016/j.nima.2015.03.033

Cited by 57 publications

(49 citation statements)

References 8 publications

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“…Diamond detectors with conductive wires in the bulk, so called 3D diamond detectors, have been demonstrated to work as position sensitive, segmented detectors [1], and to exhibit superior radiation hardness compared to conventional planar diamond detectors [2]. In this study we examine the charge collection properties of a novel generation of 3D diamond detectors fabricated with a femto-second laser and aberration correcting optics.…”

Section: Introductionmentioning

confidence: 99%

Study of cubic and hexagonal cell geometries of a 3D diamond detector with a proton micro-beam

Booth

Forcolin

Grilj

et al. 2017

Diamond and Related Materials

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A detector from single crystal synthetic diamond with conducting wires has been prepared with an improved femto-second laser process. The detector was characterised with a 4.5 MeV proton micro-beam (Ruder Bosković Institute, Zagreb). The charge collection efficiency and the transient current response have been investigated with high spatial resolution. A hexagonal and square cell geometry is investigated. Both cell geometries show full charge collection at 40V bias voltage, and little charge sharing between neighbouring cells. The experimental data is compared to a simulation and qualitative agreement is observed.

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Section: Introductionmentioning

confidence: 99%

Study of cubic and hexagonal cell geometries of a 3D diamond detector with a proton micro-beam

Booth

Forcolin

Grilj

et al. 2017

Diamond and Related Materials

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“…The so called 3D detector geometry promises to have superior radiation hardness compared to the conventional planar electrode geometry. 3D prototype detectors have been investigated with beta particles [2], high energy protons [3], alpha particles [4], and irradiation studies with neutrons seem to confirm the improved radiation hardness [5].…”

Section: Introductionmentioning

confidence: 94%

Study of a 3D diamond detector with photon and proton micro-beams

Forcolin

Grilj

Hamilton

et al. 2016

Diamond and Related Materials

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To form a 3D diamond detector electrodes were produced in diamond by a femtosecond laserinduced phase transition of diamond to graphite. The process parameters were varied to study the influence on electrode resistivity and induced stress. A technique for a relative measurement of stress induced in 3D diamond detectors is described. The detector was characterised with a 15 keV photon micro-beam (Diamond Light Source, Oxford) and a 4 MeV proton micro-beam (Ruđer Bosković Institute, Zagreb). The detector shows characteristics consistent with full charge collection. Spatially resolved transient current measurements were obtained with protons for the first time, and the results were compared to simulations of the detector.

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“…This means building 3D cells with high precision and substantially reduce the variability between their sensitive volumes. Because of their small dimensions and very precise sensitive volumes [18], the "3D" detectors are potentially applicable to small field dosimetry. For such fields, the dose changes noticeably across the detector because the size of standard detectors is large compared to the beam dimensions.…”

Section: Device Fabricationmentioning

confidence: 99%

Evaluation of a 3D diamond detector for medical radiation dosimetry

Kanxheri

Servoli

et al. 2017

J. Inst.

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Synthetic diamond has several properties that are particularly suited to applications in medical radiation dosimetry. It is tissue equivalent, not toxic and shows a high resistance to radiation damage, low leakage current and stability of response. It is an electrical insulator, robust and realizable in small size; due to these features there are several examples of diamond devices, mainly planar single-crystalline chemical vapor depositation (sCVD) diamond, used for relative dose measurement in photon beams. Thanks to a new emerging technology, diamond devices with 3-dimensional structures are produced by using laser pulses to create graphitic paths in the diamond bulk. The necessary bias voltage to operate such detector decreases considerably while the signal response and radiation resistance increase. In order to evaluate the suitability of this new technology for measuring the dose delivered by radiotherapy beams in oncology a 3D polycrystalline (pCVD) diamond detector designed for single charged particle detection has been tested and the photon beam profile has been studied. The good linearity and high sensitivity to the dose observed in the 3D diamond, opens the way to the possibility of realizing a finely segmented device with the potential for dose distribution measurement in a single exposure for small field dosimetry that nowadays is still extremely challenging.

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A 3D diamond detector for particle tracking

Cited by 57 publications

References 8 publications

Study of cubic and hexagonal cell geometries of a 3D diamond detector with a proton micro-beam

Study of cubic and hexagonal cell geometries of a 3D diamond detector with a proton micro-beam

Study of a 3D diamond detector with photon and proton micro-beams

Evaluation of a 3D diamond detector for medical radiation dosimetry

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