New test beam results of 3D and pad detectors constructed with poly-crystalline CVD diamond

M. Reichmann , A. Alexopoulos , M. Artuso , F. Bachmair , L. Bäni , M. Bartosik , J. Beacham , H. Beck , V. Bellini , V. Belyaev , B. Bentele , A. Bes (1) , J.M. Brom (2) , M. Bruzzi , G. Chiodini , D. Chren , V. Cindro , G. Claus (2) , J. Collot (1) , J. Cumalat , A. Dabrowski , R. d'Alessandro , D. Dauvergne (1) , W. de Boer , S. Dick , C. Dorfer , M. Dünser , G. Eigen , V. Eremin , G.T. Forcolin , J. Forneris , L. Gallin-Martel (1) , M.L. Gallin-Martel (1) , K.K. Gan , M. Gastal , C. Giroletti , M. Goffe (2) , J. Goldstein , A. Golubev , A. Gorišek , E. Grigoriev , J. Grosse-Knetter , A. Grummer , B. Gui , M. Guthoff , B. Hiti , D. Hits , M. Hoeferkamp , T. Hofmann , J. Hosselet (2) , J.-Y. Hostachy (1) , F. Hügging , C. Hutton , J. Janssen , H. Kagan , K. Kanxheri , G. Kasieczka , R. Kass , M. Kis , G. Kramberger , S. Kuleshov , A. Lacoste (1) , S. Lagomarsino , A. Lo Giudice , I. López Paz , E. Lukosi , C. Maazouzi (2) , I. Mandic , A. Marino , C. Mathieu (2) , M. Menichelli , M. Mikuž , A. Morozzi , J. Moss , R. Mountain , A. Oh , P. Olivero , D. Passeri , H. Pernegger , R. Perrino , M. Piccini , F. Picollo , M. Pomorski (3) , R. Potenza , A. Quadt , F. Rarbi (1) , A. Re , S. Roe , D.A. Sanz Becerra , M. Scaringella , C.J. Schmidt , E. Schioppa , S. Schnetzer , S. Sciortino , A. Scorzoni , S. Seidel , L. Servoli , D.S. Smith , B. Sopko , V. Sopko , S. Spagnolo , S. Spanier , K. Stenson , R. Stone , B. Stugo , C. Sutera , B. Tannenwald , M. Traeger , W. Trischuk , D. Tromson (3) , M. Truccato , C. Tuve , J. Velthuis , N. Venturi , S. Wagner , R. Wallny , J.C. Wang , J. Weingarten , C. Weiss , N. Wermes , M. Yamouni (1) , M. Zalieckas , M. Zavrtanik , P.S. Salter , M. Chmeissani , S. Grinstein , D. Vazquez Furelos

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 IPHC - Institut Pluridisciplinaire Hubert Curien
3 LCD (CEA, LIST) - Laboratoire Capteurs Diamant (CEA, LIST)

Chemical Vapour Deposition (CVD) diamond is being considered as a material for particle detectors in a harsh radiation environment. This article presents beam test results of 3D pixel detectors fabricated with poly-crystalline CVD diamonds. The cells of the devices had a size of 50 µm × 50 µm with columns 2.6 µm in diameter. The cells were ganged in a 3 × 2 and 5 × 1 pattern to match the layouts of the pixel read-out electronics currently used in the CMS and ATLAS experiments at the Large Hadron Collider, respectively. In beam tests, using tracks reconstructed with a high precision tracking telescope, a tracking efficiency of 99.3 % was achieved. The efficiency of both devices plateaus at a bias voltage of 30 V. Also irradiated poly-crystalline CVD diamond pad detectors were investigated. In high rate beam tests with particle fluxes up to 20 MHz/cm$^2$ and irradiations up to 8 ⋅ 10$^{15}$n/cm$^2$ it was shown that the pulse height of irradiated poly-crystalline CVD diamonds does not depend on flux to the $\mathcal{O}$ (2%).

Mots clés: efficiency; irradiation; performance; radiation: damage; ATLAS; CMS; detector: design; detector: pixel; Chemical Vapour Deposition; pCVD diamond; Diamond detectors; 3D diamond detectors; 3D sensors; Radiation tolerant detectors; Particle flux; solid-state counter: diamond

Domaines: Physique [physics]

M. Reichmann, A. Alexopoulos, M. Artuso, F. Bachmair, L. Bäni, et al.. New test beam results of 3D and pad detectors constructed with poly-crystalline CVD diamond. 15th Vienna Conference on Instrumentation, Feb 2019, Vienna, Austria. pp.162675, ⟨10.1016/j.nima.2019.162675⟩. ⟨hal-02497803⟩