Overview of Instrumentation Feedthrough System I F S

Overview of Instrumentation Feedthrough System (I. F. S. ) for HL-LHC magnets HL-LHC Circuit Instrumentation Review 01 Sept. 2020 G. D’Angelo

Context K-mod, CLIQ boxes § Integration of Instrumentation Feedthrough System (I. F. S. ) 5 R I. F. S. box CMS Q 1 2

HL-LHC I. F. S. Types § I. F. S. for K-modulation feeders (*) out of the scope of the review. Mentioned for completeness § Q 1 A and Q 3 A 2 sets / IP side, details to be seen with L. Williams. § I. F. S. for CLIQ feeders (*) § Q 1 A, Q 1 B, Q 2 A, Q 2 B, Q 3 A and Q 3 B 6 sets / IP side, details to be seen with L. Williams § Courtesy of Lloyd Williams I. F. S. for magnet instrumentation § Q 1 A, Q 1 B, Q 2 A (x 2), Q 2 B (x 2), Q 3 A, Q 3 B, CP (x 2), D 1, and D 2 (x 2) § 13 I. F. S. / IP side § I. F. S. for cold diodes § Cold diode module for Q 1 to Q 3 § 1 I. F. S. / IP side Courtesy of Yann Leclercq 3

Cover Flanges types In order to standardize the cover flanges and I. F. S. boxes, new type of cover flanges have been designed: (Ch. Scheuerlein) § Presently we have the following two types: § Cover Flange Type L: § Diameter: 260 mm § 48 HV Feedthroughs § 4 x LV Feedthroughs (4 pins) § Cover Flange Type S(*): § Diameter: 208 mm § 18 HV Feedthroughs § 5 x LV Feedthroughs (4 pins) (*): to be further discussed and approved on the final number of feedthroughs to cover the needs regarding other HL-LHC magnets (Corrector Package). Ø First prototype PCBs to be installed inside the I. F. S. boxes have been designed according to these reference drawings. 4

Summary table for HL-LHC magnet instrumentation Ø Flange of S-type should be “upgrade” to 30 HV feedthroughs (CP-2 flange), feasible with present size of flange. Ø D 1 should use L-type (or M-type) flange instead of S-type to accommodate the numbers of additional voltage taps. 5

Summary table of I. F. S. quantity for HL-LHC Ø Updated version: HV HV Max HV Feedthrough, LV Cover Flange present Feedthrough updated type config (pins) 09. 06. 2020 30. 06. 2020 S - Type 18 5 (20) 24 30 M - Type 36 1 (4) 36 36 L - Type, including for D 1 48 4 (16) 48 48 NB/IP side 3 0 10 Total to Total NB produce needed Spares ? 12 4 16 0 2 2 40 6 46 Summary: 3 x I. F. S. of S-type and 10 x I. F. S. of L-type per I. P. side. 6

Summary table for HL-LHC instrumentation, including other elements The two I. F. S. for the DCM needs to be designed, for both: • the cold diodes instrumentation • HL-LHC magnets 7

Procurement status § P. C. B. for S-type of cover flange: (18/30 HV feedthroughs) § 3 prototypes received. They are being qualified. § Others can be manufactured within a couple of weeks if needed. § 2 Alu enclosures (280 x 230 x 110 mm) on stock. They needs to be machined for cover flange and connectors hosting. § P. C. B. for L-type of cover flange: (48 HV feedthroughs) § 3 prototypes received. They are being qualified. § Others can be manufactured within a couple of weeks if needed. § 2 Alu enclosures (402 x 310 x 110 mm) on stock. Need to be machined for cover flange and connectors hosting. § In general, MPE needs 2 -3 months notice for providing I. F. S. box system. 8

Quality – testing - robustness § Continuity tests § Each I. F. S. system will be qualified from continuity test point of view: from the outside connector up to the feedthrough soldering pad. § Continuity test report will be issued and data stored. § High voltage tests § Each I. F. S. system will be qualified from high voltage test point of view: from the outside connector up to the feedthrough soldering pad. § High voltage test report will be issued and data stored. § Quench heater discharge tests § Each prototype I. F. S. system will be qualified with high current discharges simulating multiple Quench Heater discharges (max current of 350 A). During the multiples discharges, the temperature of tracks will be measured. For the series production, still t. b. c. § Detailed test report will be issued and data stored. 9

Next steps to go forward § Converging about number of signals and their routing, hopefully fixed after the review. Definition of the flanges for series magnet. § Detailed definition of twisted pairs needed per magnet type (definition of connectors and final PCB design), in agreement with MPE/EP. § Validation of the final choice of connectors to be used for HL-LHC, in agreement with MPE/EP. § Verification of magnet delivery roadmap in order to define the I. F. S. roadmap delivery. § Quality plan and test procedures for the acceptance of the HL-LHC I. F. S. to be prepared. 10

Conclusions § The project is well advanced, according to schedule but some details need to be finalized. § The total number of feedthroughs for the cover flange type-S should be revised and finally approved (Review & MCF). § The change of flange for D 1 from S-type to L-type (or M-type) should be assessed. § The procurement of the parts for the series production will be launched once all details are finalized. § Quality, robustness and reliability are key element of the IFS box due to access constraint and high radiation doses during HLLHC, therefore: § Once assembled the I. F. S. systems will undergo high quality verifications and testing before their installation on cover flanges. 11

Many thanks ! 12

Back-up slides Circuit schemes with instrumentation (26. 08. 2020) https: //edms. cern. ch/document/2411822/1 S. Pemberton, F. Rodriguez Mateos 13

Inner triplet circuit busbar v-taps proposal ver. 4 Mg. B 2 Protection vtaps Cu HEX Protection vtaps Nb-Ti/Mg. B 2 Monitoring vtaps Nb-Ti/Nb-Ti Monitoring vtaps Vtap EE 161 Q 2 a CP HTS DFHx 2 Proposed vtaps via D 1 Q 3 Cu D 1 2 Proposed vtaps via DCM DFX Plug Q 2 b Cu HTS Protection vtaps HTS Proposed vtap Vtap EE 161 Q 1 Protection vtaps Proposed vtap Vtap EE 211 Vtap EE 162 Vtap EE 154 Vtap EE 162 Vtap EE 211 Vtap EE 111 DSH Proposed vtap Vtap EE 154 logo area Vtap EE 111 S. Pemberton & F. Rodriguez Mateos 14

Q 1 magnet vtaps proposal ver. 4 CLIQ Units leads Trim – K Modulation leads Q 1 EE 161 CLIQ Unit leads EE 212 EE 121 EE 113 EE 214 EE 211 EE 114 EE 221 EE 111 MQXFA. A EE 112 MQXFA. B EE 213 Pole 3 Busbars to Q 2 & Q 3 Pole 3 EE 122 EE 222 EE 123 EE 223 Pole 2 EE 131 EE 124 EE 134 EE 141 Pole 2 EE 231 EE 224 EE 234 EE 241 EE 233 EE 142 Pole 4 EE 143 EE 242 Pole 4 EE 243 Pole 1 EE 154 Pole 1 EE 253 EE 153 EE 254 DFX Trim Lead Q 1 – Q 2 A EE 252 EE 152 EE 244 EE 144 EE 251 EE 151 logo Vtaps routed via magnet IFS-1: 21 area Vtaps routed via SC link: 0 (? ) Vtaps routed via magnet IFS-1: 20 Vtaps routed via SC link: 0 (? ) Felix Rodriguez Mateos 15

Q 2 A & Q 2 B magnet vtaps proposal ver. 4 EE 161 CLIQ Unit Leads Q 2 A Busbar from Q 1 passing through to Q 3 CLIQ Unit Leads Q 2 B EE 121 EE 114 EE 112 EE 111 EE 113 EE 121 Busbar from Q 1 MQXFB. A EE 113 MQXFB. B EE 112 Busbar to Q 3 EE 162 Pole 3 EE 122 EE 123 MCBXFB. A Pole 2 EE 123 EE 132 EE 131 EE 124 MCBXFB. B EE 141 EE 133 EE 142 EE 124 EE 134 EE 141 Pole 4 Pole 1 EE 142 EE 143 EE 153 EE 154 EE 152 EE 153 EE 152 EE 144 EE 151 Vtaps routed via magnet IFS-1: 22 logo Vtaps routed via SC link: 0 (? ) area DFX Trim Lead Q 2 A – Vtaps routed via magnet IFS-1: 22 Vtaps routed via SC link: 0 (? ) Felix Rodriguez Mateos 16

Q 3 magnet vtaps proposal ver. 4 Trim Leads CLIQ Unit Leads Q 3 CLIQ Unit Leads EE 212 EE 121 EE 113 EE 214 EE 111 Busbar from Q 1 Proposed vtap EE 211 EE 114 EE 221 MQXFA. A EE 112 MQXFA. B EE 213 Proposed vtap EE 161 Busbar from Q 2 Pole 3 EE 122 EE 222 EE 123 EE 223 Pole 2 EE 131 EE 124 EE 134 EE 141 Pole 2 EE 231 EE 224 EE 234 EE 241 EE 233 EE 142 Pole 4 DFX Trim Q 2 B – Q 3 EE 143 EE 242 Pole 4 EE 243 Pole 1 EE 154 Busbars to Corrector Package Pole 1 EE 253 EE 153 EE 254 EE 252 EE 152 EE 244 EE 144 EE 251 EE 151 Vtaps routed via magnet IFS-1: 21 logo Vtaps routed via SC link: 1 (? ) area Vtaps routed via magnet IFS-1: 20 + 2 = 22 Vtaps routed via SC link: 0 (? ) Felix Rodriguez Mateos 17

MCBXFB (Q 2 a/Q 2 b) circuit vtaps proposal ver. 4 Mg. B 2 Protection vtaps Cu HEX Protection vtaps Nb-Ti/Mg. B 2 Monitoring vtaps Nb-Ti/Nb-Ti Monitoring vtaps Vtap EE 821 Vtap EE 812 Propose d vtaps In total, 8 Proposed vtaps via D 1 MQXFB (Q 2 a or Q 2 b) Vtap EE 822 Q 3 CP D 1 Protection vtaps Cu Cu Cu HTS Protection vtaps HTS In total, 8 Proposed vtaps via DCM Cu DFHx DFX DCM H up Vtap EE 823 Vtap EE 814 Vtap EE 824 V left V right Plug Vtap EE 813 V right H down DSH Vtap EE 825 Proposed vtaps Vtap EE 816 Vtap EE 815 Vtap EE 826 logo area Vtaps routed via magnet IFS-2: 12 + 4 = 16 Vtaps routed via D 1 IFS: +8 Vtaps routed via DCM IFS: +8 S. Pemberton & F. Rodriguez Mateos 18

MCBXFA Corrector Package circuit vtaps proposal ver. 4 Mg. B 2 Protection vtaps Cu HEX Protection vtaps Nb-Ti/Mg. B 2 Monitoring vtaps Nb-Ti/Nb-Ti Monitoring vtaps Vtap EE 821 Vtap EE 811 Protection vtaps Cu Cu HTS Protection vtaps HTS Vtap EE 812 Propose d vtaps In total, 4 Proposed vtaps via D 1 Vtap EE 822 MQXFA CP D 1 In total, 4 Proposed vtaps via DCM DFHx DCM DFX H up Vtap EE 823 V left Vtap EE 813 Vtap EE 814 Plug V right Vtap EE 824 H down DSH Vtap EE 826 Vtap EE 825 Proposed vtaps Vtap EE 816 Vtap EE 815 logo area Vtaps routed via CP IFS-2: 12 + 4 = 16 + …next slide Vtaps routed via D 1 IFS: +4 Vtaps routed via DCM IFS: +4 S. Pemberton & F. Rodriguez Mateos

MCQSXF 200 A Corrector Package circuit vtaps proposal ver. 4 Cu Protection vtaps Vtap EE 821 Cu Cu Vtap EE 822 MCQSXF Proposed Vtap Pole 1 Proposed Vtap Pole 2 Vtap EE 823 Vtap EE 824 Pole 3 Proposed Vtap Pole 4 Proposed vtap Vtap EE 825 logo area Vtap EE 826 Vtaps routed via CP IFS-2: 6 + 4 = 10 + 16 from previous slide, total: 26 S. Pemberton & F. Rodriguez Mateos

MCSSXF* 120 A Corrector Package circuit vtaps proposal ver. 4 Cu Protection vtaps Cu Cu MCQSXF Vtap EE 822 Vtap EE 821 Pole 1 * Same layout proposal for all other 120 A Corrector Package circuits Pole 2 Pole 3 Vtap EE 824 Pole 5 Pole 6 Vtap EE 825 Vtap EE 826 logo area Vtaps routed via CP IFS-1: 6 x 8 = 48 S. Pemberton & F. Rodriguez Mateos

D 1 circuit vtaps proposal ver. 4 Mg. B 2 Protection vtaps Cu HEX Protection vtaps Nb-Ti/Mg. B 2 Monitoring vtaps Nb-Ti/Nb-Ti Monitoring vtaps Vtap EE 112 D 1 CP HTS Cu HTS DFHx 2 Proposed vtap via DCM Vtap EE 111 Cu HTS Protection vtaps DFX DCM Upper EE 121 EE 122 Plug Q 3 Protection vtaps Lower EE 123 EE 124 Vtap EE 132 Vtap EE 131 logo area DSH Proposed vtap Vtaps routed via D 1 IFS: 8 + 17 from previous slides, total: 25 17 are : 3 for Trim lead + 2 main IT + 12 2 k. A corr. S. Pemberton & F. Rodriguez Mateos 22

Mg. B 2 Protection vtaps C u D 2 MBRD circuit vtaps proposal ver. 4 Cu HEX Protection vtaps Cu HTS Nb-Ti/Mg. B 2 Monitoring vtaps HTS Protection vtaps Nb-Ti/Nb-Ti Monitoring vtaps Protection vtaps Vtaps routed via D 2 IFS-1: 20 EE 121 DFHM DFM EE 111 EE 113 EE 112 D 2 MBRD EE 122 EE 114 Upper pole V 1 EE 123 Plug EE 131 EE 132 MATCHING SECTION LINK logo area EE 124 Lower pole V 1 EE 213 EE 214 EE 221 Upper pole V 2 EE 222 Lower pole V 2 EE 234 EE 224 EE 233 EE 231 EE 223 S. Pemberton & F. Rodriguez Mateos 23

DFH M D 2 MCBRD circuit vtaps proposal ver. 4 Cu Cu HEX Protection vtaps HTS Protection vtaps HT S Vtaps routed via D 2 IFS-2: 48 EE 151 Nb-Ti/Mg. B 2 Monitoring vtaps EE 24 1 EE 24 2 EE 152 EE 131 Mg. B 2 Protection vtaps EE 161 EE 222 EE 212 EE 23 2 EE 14 1 EE 112 EE 162 EE 14 2 EE 221 EE 211 DFM EE 23 1 EE 132 EE 111 Nb-Ti/Nb-Ti Monitoring vtaps EE 222 EE 251 EE 221 EE 252 EE 121 EE 251 EE 262 EE 252 EE 261 EE 122 D 2 MCBRD EE 212 Vertical V 1 Horizontal V 2 Vertical V 2 EE 151 EE 211 Plug Cu Mg. B 2 Protection vtaps logo area MATCHING SECTION LINK EE 152 EE 261 EE 161 EE 112 EE 162 EE 23 1 EE 23 2 EE 24 1 EE 122 EE 24 2 EE 14 1 EE 14 2 EE 13 1 S. Pemberton & F. Rodriguez Mateos 24