The LHCb VELO Upgrade module construction
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. A new vertex locator system, the VELO Upgrade, has b...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
IOP Publishing
2024
|
| _version_ | 1811139727526461440 |
|---|---|
| author | Akiba, K Alexander, M Bertella, C Biolchini, A Bitadze, A Bogdanova, G Borghi, S Bowcock, T Bridges, K Brock, M Burke, A Buytaert, J Byczynski, W Carroll, J Coco, V Collins, P Davis, A De Aguiar Francisco, O De Bruyn, K De Capua, S De Roo, K Doherty, F Douglas, L Dufour, L John, M Pajero, T Scantlebury Smead, L |
| author_facet | Akiba, K Alexander, M Bertella, C Biolchini, A Bitadze, A Bogdanova, G Borghi, S Bowcock, T Bridges, K Brock, M Burke, A Buytaert, J Byczynski, W Carroll, J Coco, V Collins, P Davis, A De Aguiar Francisco, O De Bruyn, K De Capua, S De Roo, K Doherty, F Douglas, L Dufour, L John, M Pajero, T Scantlebury Smead, L |
| author_sort | Akiba, K |
| collection | OXFORD |
| description | The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. A new vertex locator system, the VELO Upgrade, has been constructed. The core element of the new VELO are the double-sided pixelated hybrid silicon detector modules which operate in vacuum close to the LHC beam in a high radiation environment. The construction and quality assurance tests of these modules are described in this paper. The modules incorporate 200 μm thick, n-on-p silicon sensors bump-bonded to 130 nm technology ASICs. These are attached with high precision to a silicon microchannel substrate that uses evaporative CO2 cooling. The ASICs are controlled and read out with flexible printed circuits that are glued to the substrate and wire-bonded to the chips. The mechanical support of the module is given by a carbon fibre plate, two carbon fibre rods and an aluminium plate. The sensor attachment was achieved with an average precision of 21 μm, more than 99.5% of all pixels are fully functional, and a thermal figure of merit of 3 Kcm2W-1 was achieved. The production of the modules was successfully completed in 2021, with the final assembly and installation completed in time for data taking in 2022. |
| first_indexed | 2024-09-25T04:10:41Z |
| format | Journal article |
| id | oxford-uuid:84f5faa9-c6ef-4ddf-866a-19d9564c1517 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:10:41Z |
| publishDate | 2024 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:84f5faa9-c6ef-4ddf-866a-19d9564c15172024-06-17T20:06:12ZThe LHCb VELO Upgrade module constructionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:84f5faa9-c6ef-4ddf-866a-19d9564c1517EnglishJisc Publications RouterIOP Publishing2024Akiba, KAlexander, MBertella, CBiolchini, ABitadze, ABogdanova, GBorghi, SBowcock, TBridges, KBrock, MBurke, ABuytaert, JByczynski, WCarroll, JCoco, VCollins, PDavis, ADe Aguiar Francisco, ODe Bruyn, KDe Capua, SDe Roo, KDoherty, FDouglas, LDufour, LJohn, MPajero, TScantlebury Smead, LThe LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. A new vertex locator system, the VELO Upgrade, has been constructed. The core element of the new VELO are the double-sided pixelated hybrid silicon detector modules which operate in vacuum close to the LHC beam in a high radiation environment. The construction and quality assurance tests of these modules are described in this paper. The modules incorporate 200 μm thick, n-on-p silicon sensors bump-bonded to 130 nm technology ASICs. These are attached with high precision to a silicon microchannel substrate that uses evaporative CO2 cooling. The ASICs are controlled and read out with flexible printed circuits that are glued to the substrate and wire-bonded to the chips. The mechanical support of the module is given by a carbon fibre plate, two carbon fibre rods and an aluminium plate. The sensor attachment was achieved with an average precision of 21 μm, more than 99.5% of all pixels are fully functional, and a thermal figure of merit of 3 Kcm2W-1 was achieved. The production of the modules was successfully completed in 2021, with the final assembly and installation completed in time for data taking in 2022. |
| spellingShingle | Akiba, K Alexander, M Bertella, C Biolchini, A Bitadze, A Bogdanova, G Borghi, S Bowcock, T Bridges, K Brock, M Burke, A Buytaert, J Byczynski, W Carroll, J Coco, V Collins, P Davis, A De Aguiar Francisco, O De Bruyn, K De Capua, S De Roo, K Doherty, F Douglas, L Dufour, L John, M Pajero, T Scantlebury Smead, L The LHCb VELO Upgrade module construction |
| title | The LHCb VELO Upgrade module construction |
| title_full | The LHCb VELO Upgrade module construction |
| title_fullStr | The LHCb VELO Upgrade module construction |
| title_full_unstemmed | The LHCb VELO Upgrade module construction |
| title_short | The LHCb VELO Upgrade module construction |
| title_sort | lhcb velo upgrade module construction |
| work_keys_str_mv | AT akibak thelhcbveloupgrademoduleconstruction AT alexanderm thelhcbveloupgrademoduleconstruction AT bertellac thelhcbveloupgrademoduleconstruction AT biolchinia thelhcbveloupgrademoduleconstruction AT bitadzea thelhcbveloupgrademoduleconstruction AT bogdanovag thelhcbveloupgrademoduleconstruction AT borghis thelhcbveloupgrademoduleconstruction AT bowcockt thelhcbveloupgrademoduleconstruction AT bridgesk thelhcbveloupgrademoduleconstruction AT brockm thelhcbveloupgrademoduleconstruction AT burkea thelhcbveloupgrademoduleconstruction AT buytaertj thelhcbveloupgrademoduleconstruction AT byczynskiw thelhcbveloupgrademoduleconstruction AT carrollj thelhcbveloupgrademoduleconstruction AT cocov thelhcbveloupgrademoduleconstruction AT collinsp thelhcbveloupgrademoduleconstruction AT davisa thelhcbveloupgrademoduleconstruction AT deaguiarfranciscoo thelhcbveloupgrademoduleconstruction AT debruynk thelhcbveloupgrademoduleconstruction AT decapuas thelhcbveloupgrademoduleconstruction AT derook thelhcbveloupgrademoduleconstruction AT dohertyf thelhcbveloupgrademoduleconstruction AT douglasl thelhcbveloupgrademoduleconstruction AT dufourl thelhcbveloupgrademoduleconstruction AT johnm thelhcbveloupgrademoduleconstruction AT pajerot thelhcbveloupgrademoduleconstruction AT scantleburysmeadl thelhcbveloupgrademoduleconstruction AT akibak lhcbveloupgrademoduleconstruction AT alexanderm lhcbveloupgrademoduleconstruction AT bertellac lhcbveloupgrademoduleconstruction AT biolchinia lhcbveloupgrademoduleconstruction AT bitadzea lhcbveloupgrademoduleconstruction AT bogdanovag lhcbveloupgrademoduleconstruction AT borghis lhcbveloupgrademoduleconstruction AT bowcockt lhcbveloupgrademoduleconstruction AT bridgesk lhcbveloupgrademoduleconstruction AT brockm lhcbveloupgrademoduleconstruction AT burkea lhcbveloupgrademoduleconstruction AT buytaertj lhcbveloupgrademoduleconstruction AT byczynskiw lhcbveloupgrademoduleconstruction AT carrollj lhcbveloupgrademoduleconstruction AT cocov lhcbveloupgrademoduleconstruction AT collinsp lhcbveloupgrademoduleconstruction AT davisa lhcbveloupgrademoduleconstruction AT deaguiarfranciscoo lhcbveloupgrademoduleconstruction AT debruynk lhcbveloupgrademoduleconstruction AT decapuas lhcbveloupgrademoduleconstruction AT derook lhcbveloupgrademoduleconstruction AT dohertyf lhcbveloupgrademoduleconstruction AT douglasl lhcbveloupgrademoduleconstruction AT dufourl lhcbveloupgrademoduleconstruction AT johnm lhcbveloupgrademoduleconstruction AT pajerot lhcbveloupgrademoduleconstruction AT scantleburysmeadl lhcbveloupgrademoduleconstruction |