Microchannel Cooling for the LHCb VELO Upgrade I

Collins, Paula; Leflat, Alexander; Mapelli, Alessandro; Gallas Torreira, Abraham Antonio; Brock, Matthew; Degrange, Jordan; Castellana, Christine; Alvarez Feito, Diego; Callegari, Riccardo; Roeland, Erno; John, Malcolm; Schneider, Thomas; Van Stenis, Miranda; Verlaat, Bart; Bulat, Bartosz; Hulsbergen, Wouter; Petagna, Paolo; Noel, Jerome; Lemos Cid, Edgar; Charrier, Catherine; Jurik, Nathan Philip; Schopper, Andreas; Teisier, Jean-Francois; Romagnoli, Giulia; Teissandier, Benoit; Jedrychowski, Mariusz; Nomerotski, Andrey; Bitadze, Alexander; Button, Guillaume Stephane; Svihra, Peter; Arnau Izquierdo, Gonzalo; Schindler, Heinrich; Jalocha, Pawel; Rouchouze, Eric; Catinaccio, Andrea; Schmidt, Burkhard; Porret, Alexandre; Renaud, Denis; Dumps, Raphael; Van Overbeek, Martijn; Thomas, Eric; De Capua, Stefano; Sanders, Freek; Lindner, Rolf; De Roo, Krista; Thery, Xavier; Parkes, Chris; Buytaert, Jan; Freestone, Julian; De Oliveira, Rui; Akiba, Kazu; Franco Lima, Vinicius; Coco, Victor; De Aguiar Francisco, Oscar Augusto; Bertella, Claudia; Hynds, Daniel; Jans, Eddy; Scantlebury Smead, Luke George; Charvet, Colette; Byczynski, Wiktor

doi:10.1016/j.nima.2022.166874

LHCb Note
Report number	arXiv:2112.12763 ; CERN-LHCb-PUB-2021-010 ; LHCb-PUB-2021-010 ; CERN-LHCb-PUB-2021-010
Title	Microchannel Cooling for the LHCb VELO Upgrade I
Related title	Microchannel cooling for the LHCb VELO Upgrade I Microchannel Cooling for the LHCb VELO Upgrade
Author(s)	Collins, Paula (CERN) ; De Aguiar Francisco, Oscar Augusto (University of Manchester (GB)) ; Byczynski, Wiktor (Tadeusz Kosciuszko Cracow University of technology (PL)) ; Akiba, Kazu (Nikhef National institute for subatomic physics (NL)) ; Bertella, Claudia (University of Manchester (GB)) ; Bitadze, Alexander (University of Manchester (GB)) ; Buytaert, Jan (CERN) ; De Capua, Stefano (University of Manchester (GB)) ; Callegari, Riccardo (CERN) ; Catinaccio, Andrea (CERN) ; Charvet, Colette (CERN) ; Coco, Victor (CERN) ; Degrange, Jordan (CERN) ; Dumps, Raphael (CERN) ; Alvarez Feito, Diego (CERN) ; Freestone, Julian (University of Manchester (GB)) ; Franco Lima, Vinicius (University of Liverpool (GB)) ; Gallas Torreira, Abraham Antonio (Universidade de Santiago de Compostela (ES)) ; Hulsbergen, Wouter (Nikhef National institute for subatomic physics (NL)) ; Hynds, Daniel (University of Oxford (GB)) ; Arnau Izquierdo, Gonzalo (CERN) ; Jans, Eddy (Nikhef National institute for subatomic physics (NL)) ; John, Malcolm (University of Oxford (GB)) ; Jurik, Nathan Philip (CERN) ; Leflat, Alexander (M.V. Lomonosov Moscow State University (RU)) ; Lemos Cid, Edgar (Universidade de Santiago de Compostela (ES)) ; Lindner, Rolf (CERN) ; Mapelli, Alessandro (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Noel, Jerome (CERN) ; Nomerotski, Andrey (University of Oxford (GB)) ; De Oliveira, Rui (CERN) ; Van Overbeek, Martijn (Nikhef National institute for subatomic physics (NL)) ; Parkes, Chris (University of Manchester (GB)) ; Petagna, Paolo (CERN) ; Porret, Alexandre (CERN) ; Roeland, Erno (Nikhef National institute for subatomic physics (NL)) ; Romagnoli, Giulia (CERN) ; De Roo, Krista (Nikhef National institute for subatomic physics (NL)) ; Sanders, Freek (Nikhef National institute for subatomic physics (NL)) ; Schneider, Thomas (CERN) ; Schindler, Heinrich (CERN) ; Schmidt, Burkhard (CERN) ; Schopper, Andreas (CERN) ; Scantlebury Smead, Luke George (University of Oxford (GB)) ; Van Stenis, Miranda (CERN) ; Svihra, Peter (University of Manchester (GB)) ; Teissandier, Benoit (CERN) ; Thomas, Eric (CERN) ; Verlaat, Bart (CERN) ; Castellana, Christine (CEA, LETI, Grenoble (FR)) ; Charrier, Catherine (CEA, LETI, Grenoble (FR)) ; Renaud, Denis (CEA, LETI, Grenoble (FR)) ; Rouchouze, Eric (CEA, LETI, Grenoble (FR)) ; Teisier, Jean-Francois (CEA, LETI, Grenoble (FR)) ; Brock, Matthew (University of Liverpool (GB)) ; Bulat, Bartosz (CERN) ; Button, Guillaume Stephane (CERN) ; Jedrychowski, Mariusz (AGH University of Science and Technology (PL)) ; Jalocha, Pawel (University of Oxford (GB)) ; Thery, Xavier (CERN)
To be published in:	Nucl. Instrum. Methods Phys. Res., A 1039 (2022) 166874
DOI	10.1016/j.nima.2022.166874
Submitted by	[email protected] on 06 Dec 2021
Subject category	Particle Physics - Experiment ; Detectors and Experimental Techniques
Note type	PHYS
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Abstract	The LHCb VELO Upgrade I, currently being installed for the 2022 start of LHC Run 3, uses silicon microchannel coolers with internally circulating bi-phase \cotwo for thermal control of hybrid pixel modules operating in vacuum. This is the largest scale application of this technology to date. Production of the microchannel coolers was completed in July 2019 and the assembly into cooling structures was completed in September 2021. This paper describes the R&D path supporting the microchannel production and assembly and the motivation for the design choices. The microchannel coolers have excellent thermal peformance, low and uniform mass, no thermal expansion mismatch with the ASICs and are radiation hard. The fluidic and thermal performance is presented.
Copyright/License	publication: © 2022-2024 The Author(s) (License: CC-BY-4.0) preprint: (License: CC BY 4.0)