Introduction to the Cold Powering Project for HL-LHC A. Ballarino - PowerPoint PPT Presentation

Dec 17, 2022 •630 likes •807 views

Introduction to the Cold Powering Project for HL-LHC A. Ballarino Leader of WP6a (Cold Powering) CERN, 20/06/2018 logo UU-CERN-RFR Meeting for the DFH Collaboration Protect area The project Powering the HL-LHC SC Magnets at LHC Point 5 and

Introduction to the Cold Powering Project for HL-LHC A. Ballarino Leader of WP6a (Cold Powering) CERN, 20/06/2018 logo UU-CERN-RFR Meeting for the DFH Collaboration Protect area
The project Powering the HL-LHC SC Magnets at LHC Point 5 and Point 5 Powering of LHC High Luminosity magnets at LHC Point 1 and Point 5 logo area A. Ballarino 2
The HL-LHC Tunnel Triplets Matching Section Q1 Q2 Q2 Q3 C D D2 Q4 Q6 Q5 A B P 1 Atlas logo area A. Ballarino 3
LHC Tunnel and equipment Cryostat and leads Cryostat and leads DFHX DFHM SC Link for Triplets ≈ 100 m SC Link for Matching Sections ≈ 130 m SCLINK 120<Ø< 200 D1 DFX Cryostat D2 (DFM) (connection to magnets bus-bar) Cryostat (connection to magnets bus-bar) logo area A. Ballarino 4
LHC Tunnel Configuration L  100 m L  130 m  8 m Ø 1000 logo area A. Ballarino 5
Cold Powering System (WP6a) Schematic representation 4 Current Leads (DFLH) T2  50 K HTS T1  17 K 3 MgB 2 to HTS DFH 1  -Plate DFX 2 SC Link (DSL) 4.2 K Nb-Ti – 1.9 K MgB 2 to Nb-Ti MgB 2 Nb-Ti to Nb-Ti logo area A. Ballarino A. Ballarino 6 6
Requirements for the powering of the Triplets Trim Q1a (35 A)  Local powering EDMS N. 1821907 * Able to cope with over-currents without excessive over-heating logo area A. Ballarino 7
Requirements for the powering of the Triplets Number and type of components per system Leads rated at 0.12 kA and 0.2 kA (18 in total) proposed for local powering (as in the LHC) Updated in order to take into account recent changes on the magnets circuits (HL-LHC Magnets Circuits Internal Review, EDMS N. 1807471, May 2017) EDMS N. 1821907 logo area A. Ballarino 8
DFH - Concept CERN supply DFH logo area A. Ballarino 9
Development activity at CERN Test station operational from 2014 until end 2016 – now being upgraded H  4 m L test station = 20 m/ 60 m GHe 5 K- 70 K  1 K logo area A. Ballarino 10
Industrial procurement of long cryostats SC Link cryostats @ CERN logo area A. Ballarino 11
R&D Development  SC Link  MgB 2 wire: developed with industry. Being procured  MgB 2 cable: prototyping on-going in industry  HTS Current leads  Prototypes at CERN (internal design/construction)  DFX  Small scale demonstrator being constructed  DFH  Clear baseline – changed in 2018 for simplifying cooling logo area A. Ballarino 12
DFH Functionalities 4 Current Leads (DFLH) T2  50 K HTS T1  17 K 3 MgB 2 to HTS DFH 1  -Plate DFX 2 SC Link (DSL) 4.2 K Nb-Ti – 1.9 K MgB 2 to Nb-Ti MgB 2 Nb-Ti to Nb-Ti logo area A. Ballarino A. Ballarino A. Ballarino 13 13 13
DFH Integration in the tunnel logo area A. Ballarino 14
HL-LHC Timeline Today Integration in LHC Tunnel in 2024 All large procurements of WP6a components launched in 2018 and 2019 logo area A. Ballarino 15
Looking forward to starting the collaboration Questions ? logo area A. Ballarino 16

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