CERN Accelerating science

Photolab / Photolab / Accelerators CERN-PHOTO-202502-044

First beam screen and vacuum coating for High-Luminosity LHC


Date: 17-02-2025

First beam screen completed in SMA18 for the High-Luminosity LHC magnets on the Inner-triplet (IT) String. Copper thin film is deposited on components for the accelerator in a pulsed argon plasma configuration. Green light is generated by ionized copper atoms. The photo collection also features the Beam Positioning Monitor for HL-LHC, after plated in copper and gold in the surface treatment facility.


Photograph: Krishna, Chetna
Keywords: High-Luminosity LHC; vacuum

Note: General Photo

Conditions of Use © 2025 CERN
Accessing copyrighted material

Total images: 13
CERN-PHOTO-202502-044-13  -  Small, Medium, Large, Original
Copper thin film deposition on components for the accelerator in a pulsed Argon plasma configuration. Green light is generated by ionized Copper atoms.

CERN-PHOTO-202502-044-12  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-11  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-10  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-9  -  Small, Medium, Large, Original
The electron cloud problem needs to be addressed with innovative solutions for the HL-LHC. CERN’s Vacuum, Surfaces and Coatings group has greatly improved its amorphous carbon coating technique. The violet light is produced by the argon plasma used when sputtering the amorphous carbon. The beam screen is coated in this case using the magnetic field of the quadrupole itself.

CERN-PHOTO-202502-044-8  -  Small, Medium, Large, Original
The electron cloud problem needs to be addressed with innovative solutions for the HL-LHC. CERN’s Vacuum, Surfaces and Coatings group has greatly improved its amorphous carbon coating technique. The violet light is produced by the argon plasma used when sputtering the amorphous carbon. The beam screen is coated in this case using the magnetic field of the quadrupole itself.

CERN-PHOTO-202502-044-7  -  Small, Medium, Large, Original
First beam screen completed in SMA18 for the High-Luminosity LHC magnets on the Inner-triplet (IT) String.

CERN-PHOTO-202502-044-6  -  Small, Medium, Large, Original
First beam screen completed in SMA18 for the High-Luminosity LHC magnets on the Inner-triplet (IT) String.

CERN-PHOTO-202502-044-5  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-4  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-3  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-1  -  Small, Medium, Large, Original

CERN-PHOTO-202502-044-2  -  Small, Medium, Large, Original
HL-LHC BPM after Cu and gold plating in surface treatment facility





 Record created 2025-02-17, last modified 2025-02-19


Fulltext:
202502-044 12 - Download fulltextJPG
202502-044 13 - Download fulltextJPG
202502-044 11 - Download fulltextJPG
(additional files)