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Charge collection properties of prototype sensors for the LHCb VELO upgrade
An extensive sensor testing campaign is presented, dedicated to measuring the charge collection properties of prototype candidates for the Vertex Locator (VELO) detector for the upgraded LHCb experiment. The charge collection is measured with sensors exposed to fluences of up to 8×1015 1 MeV neq cm-...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1748-0221/16/02/P02029 http://cds.cern.ch/record/2742574 |
| _version_ | 1780968514847244288 |
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| author | Geertsema, R. Akiba, K. van Beuzekom, M. Buchanan, E. Burr, C. Byczynski, W. Collins, P. Dall'Occo, E. Evans, T. Lima, V.Franco Heijhoff, K. Kopciewicz, P. Marinho, F. Price, E. Rachwal, B. Richards, S. Saunders, D. Schindler, H. Snoek, H. Szumlak, T. Tsopelas, P. Velthuis, J. Williams, M.R.J. |
| author_facet | Geertsema, R. Akiba, K. van Beuzekom, M. Buchanan, E. Burr, C. Byczynski, W. Collins, P. Dall'Occo, E. Evans, T. Lima, V.Franco Heijhoff, K. Kopciewicz, P. Marinho, F. Price, E. Rachwal, B. Richards, S. Saunders, D. Schindler, H. Snoek, H. Szumlak, T. Tsopelas, P. Velthuis, J. Williams, M.R.J. |
| author_sort | Geertsema, R. |
| collection | CERN |
| description | An extensive sensor testing campaign is presented, dedicated to measuring the charge collection properties of prototype candidates for the Vertex Locator (VELO) detector for the upgraded LHCb experiment. The charge collection is measured with sensors exposed to fluences of up to 8×1015 1 MeV neq cm-2, as well as with nonirradiated prototypes. The results are discussed, including the influence of different levels of irradiation and bias voltage on the charge collection properties. Charge multiplication is observed on some sensors that were nonuniformly irradiated with 24 GeV protons, to the highest fluence levels. An analysis of the charge collection near the guard ring region is also presented, revealing significant differences between the sensor prototypes. All tested sensor variants succeed in collecting the minimum required charge of 6000 electrons after the exposure to the maximum fluence. |
| id | cern-2742574 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27425742023-03-14T16:50:13Zdoi:10.1088/1748-0221/16/02/P02029http://cds.cern.ch/record/2742574engGeertsema, R.Akiba, K.van Beuzekom, M.Buchanan, E.Burr, C.Byczynski, W.Collins, P.Dall'Occo, E.Evans, T.Lima, V.FrancoHeijhoff, K.Kopciewicz, P.Marinho, F.Price, E.Rachwal, B.Richards, S.Saunders, D.Schindler, H.Snoek, H.Szumlak, T.Tsopelas, P.Velthuis, J.Williams, M.R.J.Charge collection properties of prototype sensors for the LHCb VELO upgradephysics.ins-detDetectors and Experimental TechniquesAn extensive sensor testing campaign is presented, dedicated to measuring the charge collection properties of prototype candidates for the Vertex Locator (VELO) detector for the upgraded LHCb experiment. The charge collection is measured with sensors exposed to fluences of up to 8×1015 1 MeV neq cm-2, as well as with nonirradiated prototypes. The results are discussed, including the influence of different levels of irradiation and bias voltage on the charge collection properties. Charge multiplication is observed on some sensors that were nonuniformly irradiated with 24 GeV protons, to the highest fluence levels. An analysis of the charge collection near the guard ring region is also presented, revealing significant differences between the sensor prototypes. All tested sensor variants succeed in collecting the minimum required charge of 6000 electrons after the exposure to the maximum fluence.An extensive sensor testing campaign is presented, dedicated to measuring the charge collection properties of prototype candidates for the Vertex Locator (VELO) detector for the upgraded LHCb experiment. The charge collection is measured with sensors exposed to fluences of up to $8 \times 10^{15}~1~\mathrm{\,Me\kern -0.1em V}~ \mathrm{ \,n_{eq}}~{\mathrm{ \,cm}}^{-2}$, as well as with nonirradiated prototypes. The results are discussed, including the influence of different levels of irradiation and bias voltage on the charge collection properties. Charge multiplication is observed on some sensors that were nonuniformly irradiated with 24 GeV protons, to the highest fluence levels. An analysis of the charge collection near the guard ring region is also presented, revealing significant differences between the sensor prototypes. All tested sensor variants succeed in collecting the minimum required charge of 6000 electrons after the exposure to the maximum fluence.arXiv:2010.10147oai:cds.cern.ch:27425742020-10-20 |
| spellingShingle | physics.ins-det Detectors and Experimental Techniques Geertsema, R. Akiba, K. van Beuzekom, M. Buchanan, E. Burr, C. Byczynski, W. Collins, P. Dall'Occo, E. Evans, T. Lima, V.Franco Heijhoff, K. Kopciewicz, P. Marinho, F. Price, E. Rachwal, B. Richards, S. Saunders, D. Schindler, H. Snoek, H. Szumlak, T. Tsopelas, P. Velthuis, J. Williams, M.R.J. Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title | Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title_full | Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title_fullStr | Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title_full_unstemmed | Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title_short | Charge collection properties of prototype sensors for the LHCb VELO upgrade |
| title_sort | charge collection properties of prototype sensors for the lhcb velo upgrade |
| topic | physics.ins-det Detectors and Experimental Techniques |
| url | https://dx.doi.org/10.1088/1748-0221/16/02/P02029 http://cds.cern.ch/record/2742574 |
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