Vacuum system design and prototyping for the ALBA II upgrade

THP58
18 Sept 2025, 16:40
1h
The Loop

The Loop

Lund, Sweden
Poster Presentation Vacuum Thursday Poster Session

Speaker

Ricardo Parise (ALBA Synchrotron (Spain))

Description

ALBA is working on the ALBA II upgrade to transform the current storage ring, in operation since 2012, into a 4th-generation diffraction-limited synchrotron light source. The vacuum system is designed for a compact geometry with tight magnet apertures, where synchrotron power is distributed directly onto the chamber walls. Nevertheless, crotch absorbers will be used at key locations. Due to the low conductivity in such small chambers, the entire ring will be NEG coated to accelerate vacuum conditioning and achieve the required ultimate pressure. Most of the vacuum chambers of the 268.8 m long ring, divided into 16 arcs of 12.8 m each, will be made of OFHC-Cu or CuCrZr to dissipate synchrotron radiation and reduce resistive wall impedance. The chambers will have a nominal internal diameter of 16 mm, a minimum wall thickness of 1 mm, and clearances of up to 0.5 mm from magnet poles. Launched in 2021, the upgrade includes an R&D program focused on prototyping critical components. This contribution presents the overall vacuum system status, the design and production of vacuum prototypes, and initial component tests.

Funding Agency

Prototypes are Funded by the Spanish MCIN and the European Union – NextGenerationEU project 28.50.460D.74903 from the Recovery and Resilience Mechanism.

Author

Ricardo Parise (ALBA Synchrotron (Spain))

Co-authors

Oriol Traver Ramos (ALBA Synchrotron (Spain)) Gabriel Peña Calurano (ALBA Synchrotron (Spain)) Llibert Ribo (ALBA Synchrotron (Spain)) Javier Boyer (ALBA Synchrotron (Spain)) Pol Salmeron Roma (ALBA Synchrotron (Spain)) Barbara de Abreu Francisco (ALBA Synchrotron (Spain)) Liudmila Nikitina (ALBA Synchrotron (Spain)) Jon Ladrera Fernández (ALBA Synchrotron (Spain)) Andrea Fontanet (ALBA Synchrotron (Spain)) Bo Zhang (ALBA Synchrotron (Spain)) Maisui Ning (ALBA Synchrotron (Spain)) Valentí Massana Gràcia (ALBA Synchrotron (Spain)) Laura Torino (ALBA Synchrotron (Spain)) Michele Carlà (ALBA Synchrotron (Spain)) Oscar Blanco-García (ALBA Synchrotron (Spain)) Thomas Günzel (ALBA Synchrotron (Spain)) Zeus Martí (ALBA Synchrotron (Spain)) Ignasi Bellafont (ALBA Synchrotron (Spain)) Marcos Quispe (ALBA Synchrotron (Spain)) Marta Llonch Burgos (ALBA Synchrotron (Spain)) Nahikari Gonzalez (ALBA Synchrotron (Spain)) Gabriele Benedetti (ALBA Synchrotron (Spain)) Ferran Fernandez (ALBA Synchrotron (Spain)) Jordi Marcos (ALBA Synchrotron (Spain)) Ubaldo Iriso (ALBA Synchrotron (Spain)) Joan Casas (ALBA Synchrotron (Spain)) Francis Perez (ALBA Synchrotron (Spain)) Montserrat Pont (ALBA Synchrotron (Spain)) Pau Ros Bosch (ALBA Synchrotron (Spain)) Lizet Andrea Carvajal Rocha (ALBA Synchrotron (Spain)) Carles Colldelram (ALBA Synchrotron (Spain))

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