International Review on the e-lens concept readiness for integration into the HL-LHC baseline

Session

Technical development and R&D plans

19 Oct 2017, 14:10

6/2-024 - BE Auditorium Meyrin (CERN)

19. Safety aspects in IR4 (access constraints for operating the e-beam complex)

Christelle Gaignant (CERN)

19/10/2017, 14:10

This presentation will address the safety-related aspects of the HEL during commissioning and operations based on the present design. Both conventional and radiation hazards will be covered. The possible risk control measures to implement during design, commissioning and operations will be presented.

20. Q&A

19/10/2017, 14:25

21. Simulation studies for the e-dynamics and discussion on the range of interesting e-currents (4-5A) and solenoid fields (4-6T), summary of BINP studies and range of required parameters

Adriana Rossi (CERN)

19/10/2017, 14:30

This talk will present simulations (from BINP) on electron beam transport showing the interplay between electron current, the required extraction voltage and solenoid field on electron dynamics and stability.

22. Q&A

19/10/2017, 14:55

23. Beam Gas Jet monitor

Raymond Veness (CERN)

19/10/2017, 15:00

The gas jet monitor is beam profile measurement diagnostic that would allow simultaneous on-line imaging of both electron and proton beams. The principles and development is described along with plans for integration and test in the LHC.

24. Q&A

19/10/2017, 15:15

28. Superconducting Magnet System Conceptual Design for the Hollow e-lens (HEL) proposed for HL-LHC

Glyn Kirby (CERN)

19/10/2017, 15:20

During the summer of 2017 a number of coil designs have be studied with the aim of finding a configuration of coils and a cryostat design that will fulfill the many requirements associated with the proposed HEL system. We can state that the final fully detailed coil configurations are yet to be reached and are still under optimization. This talk presents the latest design that covers the...

29. Q&A

19/10/2017, 15:45

25. Injector and dump design details and developments

Giorgia Gobbi (CERN)

19/10/2017, 16:20

The hollow electron beam is injected by a cathode immersed in the magnetic field generated by a set of solenoids. The sum of these components is called electron gun and its geometry evolved over time in order to guarantee sufficient performance in terms of electron density, hollow beam dimensions and gun compactness.
The energy carried by the electrons is dissipated in a dump system in charge...

26. Q&A

19/10/2017, 16:35

27. List of ongoing studies and topics for a potential test facility and expected benefits for the reference design.

Adriana Rossi (CERN)

19/10/2017, 16:40

This talk will illustrate tests to be carried out in an electron lens test facility, aimed at validating simulations and size effects of bends, compression, imperfections, misalignment, . . .
A staged approach is proposed, starting with a test-stand with all resistive solenoid magnets that will allow to complement ongoing tests characterizing e-guns with higher extraction energy, while...

30. Q&A

19/10/2017, 17:05

31. Planning, budget and schedule proposal for reference design, Discussion on required spares and maintenance scenarios

Stefano Redaelli (CERN)

19/10/2017, 17:10

The figures from the different presentations to this review are wrapped up in a summary that collects budget and planning implications for the deployment of 2 hollow electron lenses at HL-LHC, for the operation in Run IV. Various scenarios are considered taking also into account the procurement needs for prototypes and spares. Open points and possible sources of uncertainties are also discussed.

32. Q&A

19/10/2017, 17:35