BGC Collaboration Meeting at CERN

Tuesday 31 Mar 2020, 09:00 → 22:00 Europe/Zurich

CERN

The aims of the meeting are to:

 

• For the V2 instrument in Cockcroft: Summarise the measurements of 2019 and define the measurement priorities for 2020
• For the V3 instrument LHC tunnel installation: Give the status on the tunnel installation and V3 instrument design
• For the HEL test stand with V3 design: Define the objectives of the tests, what can be the expected performance, define work share on the HEL test stand with BGC V3 and planning
• HLLHC instrument: Identify design limits with integration constraints, optimise gas jet creation and choice of gas, expected performance, view of schedule and tasks
• Review status of the collaboration, publications, manpower and budget planning
• Fluorescence tests in LHC with distributed gas: Review results and expectations with run 3.
• Discuss alternative gas jet generation.

___________________________________________________________________________________

Previous collaboration meetings:

• June 2019, Cockroft Institute
• March 2018, GSI
• June 2017, Cockcroft Institute
• October 2016, CERN

 

BGC_Workshop_0320-3.pdf

09:00 → 09:10 Welcome to CERN

HL-LHC status

Speaker: Rhodri Jones (CERN)

HL-LHC_Status_BGC Collaboration Meeting March 2020.pdf

HL-LHC_Status_BGC Collaboration Meeting March 2020.pptx

09:10 → 09:25 Review of actions from last meeting and objectives of the workshop

i. Review actions from Liverpool collaboration meeting
ii. Milestones for the project at CERN
iii. Summary of future goals for the collaboration

Speaker: Raymond Veness (CERN)

Review of the June 2019 workshop and Objectives.pdf

Review of the June 2019 workshop and Objectives.pptx

09:25 → 09:45 Cockroft collaboration

i. Status of the collaboration
ii. Recruitment situation and plans, financial situation, main milestones
iii. Payments for V3 model of stages 1 and 2 including designers
iv. Foreseen publications for 2020

Speaker: Carsten Peter Welsch (Cockcroft Institute / University of Liverpool)

09:45 → 10:45 Experimental results in 2019 from Cockcroft (50min + 10min)

i. Neon, Argon and Nitrogen gas jet formation
1. Measured density and dimensions
2. Light yield comparison
ii. Integration times comparison for different gases:
1. Measured vs predicted
2. Estimation of integration time to work as an overlap instrument
3. Estimation of integration time to work as a profile monitor
iii. Optimisations performed
1. Distances between skimmers and nozzles
2. Diameters of the nozzle diameters 20-30-50 μm
3. Nozzle design
iv. 2020 Experimental Program on V2
1. Nozzle design
2. Alternative skimmer diameters
3. Performance check of V3 instrument (Where, who, how)
v. Design and procurement of BGC V3 parts by Cockcroft Institute
1. Design
2. Procurement

Speakers: Amir Salehilashkajani (Liverpool University), Dr Hao Zhang (University of Liverpool/Cockcroft Institute), Narender Kumar (University of Liverpool)

Cockcroft update and plan_v3.pdf

Cockcroft update and plan_v3.pptx

10:45 → 11:05 ☕ Coffee Break ☕

11:05 → 11:25 Experimental results in 2019 from LHC fluorescence measurements (15min + 5min)

i. Up-date on data analysis
ii. Fluorescence measurements on V3 instruments start Run 3

Speaker: Stefano Mazzoni (CERN)

2020.03.31_CollabMeeting.pdf

2020.03.31_CollabMeeting.pptx

11:25 → 11:45 Developments by GSI (15min + 5min)

iUp-date table of gas yields comparison

Speaker: Serban Udrea (GSI Darmstadt)

BGC_BIF_integration_times.xlsx

optics_SU_20200316.pdf

11:45 → 12:05 BGC and HEL: status of tunnel and lab activities

Speaker: Eric Page (CERN)

LHC_BGC-tunnel_status_TE-VSC-BVO.pdf

LHC_BGC-tunnel_status_TE-VSC-BVO.pptx

12:05 → 13:35 🍽️ Lunch 🍽️

13:35 → 14:35 HEL test stand update (40min + 20min)

i. Schedule for the HEL test stand
ii. Update on HEL and electron beam diameter
iii. Update on e-lens parameters and interface
iv. HEL test stand parameters
v. Expected background light with foreseen blackening and light reducing orifices
vi. BGC design in HEL test stand
vii. BGC V3 operation: Foreseen time window, infrastructure space for racks and controls, pumps, power

Speakers: Adriana Rossi (CERN), Sergey Sadovich (CERN)

BGC collaboration meeting _ HEL test stand update v2.pdf

BGC collaboration meeting _ HEL test stand update v2.pptx

14:35 → 15:00 LS2 BGC Installation & Integration (Stage 1 and 2) (20 + 5 min)

i. Installation design and status
ii. ECR Progress
iii. Blackening of V3.
iv. Steps towards Stage 2
v. Next nozzles - CD Nozzle & alternatives.

Speaker: Ioannis Papazoglou (Ministere des affaires etrangeres et europeennes (FR))

BGC Collaboration meeting at CERN 31-3-2020.pdf

BGC Collaboration meeting at CERN 31-3-2020.pptx

15:00 → 15:25 b. Optimisation for V3 (20 + 5 min)

i. Estimation of gas density for V3 LHC and HEL design
ii. Dump optimisation
iii. Optimisation for skimmer diameters for V3 design with expected interaction gas density
iv. Up-date on synchrotron light estimations with V3 design

Speaker: Marton Ady (CERN)

20200331 bgc collab meeting pressure profiles.pdf

20200331 bgc collab meeting pressure profiles.pptx

15:25 → 15:45 ☕ Coffee Break ☕

15:45 → 16:05 Acceptance criteria for the final instrument discussion (5' + 15')

Speaker: Raymond Veness (CERN)

BGC_Acceptance_criteria_v2.docx

BGC_Acceptance_criteria_v2.pdf

16:05 → 16:20 Planning (10min + 5min)

i. Milestones
ii. To-do list (infrastructure requirements, cabling, gas piping)

Speaker: Gerhard Schneider (CERN)

BGC_Planning_in_2020 03 31.pdf

BGC_Planning_in_2020 03 31.pptx

16:20 → 16:45 Alternative Gas Jet creation (20 + 5 min)

Speaker: Roberto Kersevan (CERN)

Alternative Gas Jet creation for the BGV - BGC Collaboration Meeting - 31March2020.pdf

Alternative Gas Jet creation for the BGV - BGC Collaboration Meeting - 31March2020.pptx

16:45 → 17:05 BGV Status (15 + 5 min)

Speaker: James Storey (CERN)

BGV-Status-20-03-2020.pdf

BGV-Status-20-03-2020.pptx

17:05 → 17:35 Wrap-Up discussion

BGC0320-wrap-up.pdf

BGC0320-wrap-up.pptx