ELENA Vacuum chambers and vacuum activities IIC meeting

ELENA – Vacuum chambers and vacuum activities IIC meeting 09 -06 -2016 G. Riddone (contribution from G. Bregliozzi, R. Kersevan, A. Mongelluzzo, A. Sapountzis, A. Sinturel. M. Thiebert) 1

Vacuum chamber productions • EN-MME – – – • LNR Dipole vacuum chambers LNI Y-vacuum chamber LNI quadrupole vacuum chambers LNI dipole vacuum chambers LNR inj-ejection vacuum chambers LNS: AD_VCPAB 0001 - AD_VCPAC 0001 Trinos – All other straight chambers for LNR, LNE 00, LNE 50, LNI and LNS • To be noticed that 4 LNE 50 chambers need management green light before launching the production (EN-MME or Trinos): VCDCU/CX/CW/CV • Details available at – https: //espace. cern. ch/TEVSCgroup/Projects/ELENAWP 25/Shared%20 Documents/Procurement%20%20 Validation%20 Test/VF%2 C%20 ST%2 C%20 NEG%20 and%20 AT%20 follow-up. xlsx? Web=1 2

Production by EN-MME Réf AD_VCQAS AD_VCQBT AD_VCQBU AD_VCQBV AD_VCBYG AD_VCBCM AD_VCPAD AD_VCBCJ (K) AD_VCBCJ (K) AD_VCBCJ AD_VCBYE AD_VCKYA AD_VCDBT AD_VCDCQ AD_VCDCR AD_VCPAB AD_VCPAC Liste chambres fabrication Atelier Principal (le 9/06/2016) Ligne N 0 Terminée Etuvage NEG Installée LNI 1 O N N O LNI 1 O N N En cours d'installation LNI 1 O N N O LNR 1 O O O Installation LNR 2 O O O Bat 113, RGA LNR 3 O O O Bat 113 LNR 4 O O O Bat 181 LNR 5 O O O Bat 181 LNR 6 S 18 Bat 113 , montage étuvage LNR 7 O Reserve SMA 18 LNR 1 O O O Bat 181, dépôt NEG LNR 1 O(S 17) O O Bat 181, dépôt NEG LNR 2 O O O Fin Test Hé à transporter 181 LNE 00 1 O O N En cours d'installation LNI 1 O(S 17) O O Bat 181, dépôt NEG LNI 1 O(S 22) O O Bat 181, dépôt NEG LNS 1 S 26 O O AP en cours de fabrication VCKYA Except for the two LNS chambers (fabrication: end of June 2016) the production of all the other chambers is completed 3

Production by Trinos • 4 th batch x 6 VC upstream and downstream the fast valves DAI under approval, shipment basic material W 24 2 nd batch x 8 AD_VCDCE 0001 x 1 AD_VCDCF 0001 x 1 AD_VCQAP 0001 x 2 AD_VCQBJ 0001 x 2 AD_VCDME 0001 x 1 AD_VCDBQ 0001 x 1 He test and cleaning done • 3 rd batch x 13 AD_VCDCI 0001 x 1 AD_VCDBU 0001 x 1 AD_VCDBV 0001 x 1 AD_VCDBW 0001 x 1 AD_VCDBY 0001 x 1 AD_VCDBZ 0001 x 1 AD_VCDCS 0001 x 1 AD_VCDDB 0001 x 1 AD_VCDBR 0001 x 1 AD_VCPAA 0001 x 1 AD_VCDBX 0001 x 1 AD_VCSPB 0001 x 1 AD_VCSPA 0001 x 1 • NEG done 1 st batch x 12 AD_VCDBS 0001 x 1 AD_VCDCG 0001 x 2 AD_VCPIB 0001 x 1 AD_VCXBA 0001 x 2 AD_VCLBA 0001 x 2 AD_VCPQA 0001 x 1 AD_VCXBB 0001 x 1 AD_VCXAA 0001 x 1 AD_VCQBK 0001 x 1 NEG done • 4

Production by Trinos He test (80%) NEG coating (batch 3 no NEG) Acceptance test (1 per batch) Batch 1 Batch 2 5

Production by Trinos He test (80100%) NEG coating Acceptance test (1 per batch) Batch 3 (No NEG) 6

Bake-out equipment • LNR dipole – Jackets are installed on all the chambers • Kickers – Jackets are installed • BPM and other chambers in the magnets – Wrapping according to magnet availability • Standard elements – Ion pumps, gauges, chambers: wrapping on-site after vacuum tests 7

NEG coating • LNR dipole vacuum chambers – #1: LNR dipole chamber # 1 (NEG completed) was installed with supports on two dipole magnets to check availability space between coils and bake out jackets. – #2: NEG coating done, masked bellows and sleeves, no peel off, transport to B 113 for acceptance tests – #3: NEG coating in W 23 – #4 to 6 : NEG coating will follow W 24, 25 and 26 • Scraper bellows: – 1 bellows with NEG successfully tested (no peel-off) – 1 bellows NEG W 23 • LNR chambers TRINOS – RUN #2 successfully coated, no peel-off at bellows or welding – RUN #3 (Week 23) • Y-chambers x 3: NEG coating W 24 to W 26 8

NEG coating • PU SCHOTTKY (Responsible Jorge Sanchez Quesada) – 4 chambers received (weight ~80 kilos each, very fragile) – Optical inspection of the 4 chambers have dust, projections, metallic shavings, oxidation, scratches and white spots. Proposed actions-> to be discussed • BPM for Tune (Responsible: Joel Albertone) – After the acceptance test there is peel-off (dust-like). – The electrodes were coated in another lab than the vacuum tanks. – Unable to confirm by eye if the peel-off is coming from the chamber only or/and the electrodes Proposed actions-> to be discussed • Try to detect Ti, Zr, V on the vacuum chamber with a portable XRF • If there is NEG on the chamber, manufacture new electrodes • If there is no NEG on the chamber, in addition the electrodes, strip the NEG from the chamber (if possible) and/or manufacture new chambers. 9

Acceptance tests • See also SP site: https: //espace. cern. ch/TE-VSCgroup/Acceptance. Tests/_layouts/15/start. aspx#/Lists/Acceptance%20 tests%202/All. Items. aspx Underway • BTV tank with NEG • Kicker tank with extra pumps: 1 Capacitorr D 2000, 1 Capacitorr D 3500, In the pipeline • Y- Chambers (2+1): available for testing end of June, W 27 • LNR dipole chambers: 1 chamber per week W 24 to 29. • SEM chambers: – assembly to be tested with vacuum chambers W 24 -25 – one vacuum chamber alone after cleaning to be tested W 23 -24 • Trinos vacuum chambers: – set#2 with NEG W 23 (1 chamber only will be tested) – set#3 with NEG W 24 (1 chamber only will be tested) 10

Installation • Focused on the sector LNI-LNE and LNR – 40, 45% of the installation of those sectors is done. • We wait for survey team to align the dipoles to continue the installation in LNR 40. • We wait for EN-MME to re-machine the support plate of the LNI. ZQNA. 0050 to connect last part of LNI. • We wait for one more SEM tank to complete sector valve installation in LNE 00. 11