FCC Week 2022

Session

Technology

31 May 2022, 11:00

Conveners

Technology: SRF: Directions for R&D

• Olivier Brunner (CERN)

Technology: SRF Technologies 01

• Anne-Marie Valente-Feliciano

Technology: SRF Technologies 02

• Thomas Proslier

Technology: first session

• Giorgio Apollinari (Fermi National Accelerator Lab. (US))

Technology: second session

• Roberto Losito (CERN)

Technology: R&D

• Tatiana Pieloni (EPF Lausanne)

110. Baseline & Cavity options for FCC-ee

Franck Peauger (CERN)

31/05/2022, 11:00

Oral presention (by invitation only)

111. Beam-cavity interaction studies for the FCC-ee – RF frequency considerations

Ivan Karpov (CERN)

31/05/2022, 11:20

Oral presention (by invitation only)

217. RF frequency considerations

Linhao Zhang (Chinese Academy of Sciences (CN))

31/05/2022, 11:40

Oral presention (by invitation only)

112. The SRF program in the SNOWMASS 2021 strategy

Anne-Marie Valente-Feliciano

31/05/2022, 11:55

Oral presention (by invitation only)

113. Innovative superconducting thin film coated cavities (IFAST)

Claire Antoine (CEA)

31/05/2022, 12:15

Oral presention (by invitation only)

114. The Ell Cavities program at CERN: Short Intro (strategy & goals)

Guillaume Jonathan Rosaz (CERN)

31/05/2022, 14:00

Oral presention (by invitation only)

115. The Ell Cavities program at CERN: Baseline cavities designs for FCC_ee

Sosoho-Abasi Udongwo

31/05/2022, 14:09

Oral presention (by invitation only)

145. Elliptical Cavities Production Technologies

Marco Garlasche (CERN)

31/05/2022, 14:18

SRF Programme

Current strategy and ongoing activities will be presented, in relation to R&D and preparation of production for the elliptical cavities needed by FCC

60. Electropolishing 1300 & 400 MHz SRF copper substrates

Gloria Bellini (Ministere des affaires etrangeres et europeennes (FR))

31/05/2022, 14:27

SRF Programme

Oral presention (by invitation only)

In the frame of the Future Circular Collider (FCC) study, CERN is modelling the copper electropolishing process. The aim is to foresee and optimise the process parameters such as cathode geometry, bath flow and temperature, and minimum potential input, namely on the 400 MHz single cell FCC type cavities and thus contributing in achieving the ultimate performance on the Nb/Cu technology. In...

52. Temperature Mapping System For Niobium Coated Copper Cavities

Antonio Bianchi (CERN)

31/05/2022, 14:36

SRF Programme

Oral presention (by invitation only)

Since the late 80’s, CERN has pioneered development of thin film superconducting radio-frequency cavities for particle accelerators. This technology, used in LEP II, LHC and more recently in HIE-ISOLDE, presents many advantages. As a consequence, many efforts are put in place at CERN in view of its potential implementation in the FCC machines. However, niobium thin film cavities historically...

80. Nb/Cu thin film HiPIMS coatings optimization for SRF applications

Carlota Pereira Carlos (FCT Fundacao para a Ciencia e a Tecnologia (PT))

31/05/2022, 14:45

SRF Programme

Oral presention (by invitation only)

The Future Circular Collider (FCC) study focuses on the design and technology developments of a new research infrastructure capable of hosting the next generation of particle colliders at CERN. CERN developed significant know-how in the design and fabrication of niobium-coated copper superconducting radiofrequency (SRF) cavities for accelerators, from the Large LEP, to the LHC, and HIE-ISOLDE....

66. RF tests of Nb/Cu 1.3 GHz elliptical cavities

Lorena Vega Cid (CERN)

31/05/2022, 14:54

SRF Programme

Oral presention (by invitation only)

The Nb/Cu SRF cavities offer several advantages with respect to the bulk Nb cavities. However, their application has been limited due to a degradation in the performance systematically observed at high accelerating gradients. In recent years, a vast R&D campaign has been devoted to the optimization of the manufacturing process of 1.3 GHz cavities at all levels, from the production of the...

154. The Ell Cavities program at CERN: Atomic layer deposition

Thomas Proslier

31/05/2022, 15:03

Oral presention (by invitation only)

59. Progress with bipolar HiPIMS-deposited Nb3Sn films on Cu for SRF applications

Stewart Leith (CERN)

31/05/2022, 15:12

SRF Programme

Oral presention (by invitation only)

CERN has successfully operated a number of Nb coated Cu cavities for a number of years, most notably in the LEP, LHC and HIE ISOLDE accelerators. In order to meet the requirements for the Future Circular Collider (FCC), an increase in the quality factor of the accelerating cavities, while maintaining the operating temperature of 4.5 K, is required. Because of its lower BCS resistance and...

117. Discussion

31/05/2022, 15:21

37. Two Stage High Efficiency Klystron for FCC-ee

Zaib Un Nisa Zaib Un Nisa (CERN)

31/05/2022, 16:00

SRF Programme

Oral presention (by invitation only)

The innovative concept of two-stage multi-beam Klystron has been previously proposed and studied for a 1GHz 20MW Klystron for CLIC. This technology utilizes low voltage electron beam in its first stage to reduce the overall tube length, followed by DC post acceleration in the second stage to ensure ultra-high efficiency. This topology is very practical to provide compact design at a low...

42. The SWELL Cavities program

Mr Franck Peauger (CERN), Graeme Campbell Burt (Lancaster University (GB)), Marc Timmins (CERN), Mathieu Therasse (CERN), Shahnam Gorgi Zadeh (CERN), Torsten Koettig (CERN)

31/05/2022, 16:25

SRF Programme

Oral presention (by invitation only)

An innovative superconducting cavity topology has been recently proposed at CERN and at Lancaster University. It integrates longitudinal slots crossing perpendicularly the RF surface. The RF current lines run along the slots, inducing no perturbation of the accelerating mode. Thanks to this approach, the cavity can be built using halves or quadrants, which is well appropriate to precise...

118. The SWELL Cavities program at CERN: The SWELL cavity RF development

Shahnam Gorgi Zadeh (CERN)

31/05/2022, 16:35

Oral presention (by invitation only)

119. The SWELL Cavities program at CERN: Mechanical design and challenges

Marc Timmins (CERN)

31/05/2022, 16:45

Oral presention (by invitation only)

120. The SWELL Cavities program at CERN: Preparation of the 1.3 GHz SWELL tests

Mathieu Therasse (CERN)

31/05/2022, 16:55

Oral presention (by invitation only)

121. Heat transfer studies of a SWELL mock-up geometry to its helium cooling loop

Torsten Koettig (CERN)

31/05/2022, 17:05

Oral presention (by invitation only)

218. The SWELL Cavities program at CERN: Experience with slotted cavities at ULAN

Graeme Campbell Burt (Lancaster University (GB))

31/05/2022, 17:15

Oral presention (by invitation only)

122. Discussion

31/05/2022, 17:25

82. Status of Collider and Booster Magnets for FCC-ee

Jeremie Bauche (CERN)

01/06/2022, 11:00

Technology R&D

Oral presention (by invitation only)

Coupled aperture magnet designs have been proposed for the dipole and quadrupole of the FCC-ee collider during the CDR phase. They are characterized by a high energy efficiency but the aperture coupling brings additional challenges to achieve the field quality requirements, in particular for the quadrupole when an active system is added to trim the field to the energy saw-tooth generated by...

91. Vacuum Component R&D

Cedric Garion (CERN)

01/06/2022, 11:30

Technology R&D

Oral presention (by invitation only)

The Future Circular Collider study program comprises several machine concepts for the future of high-energy particle physics. In particular, a twin-ring e-e+ collider capable to run at beam energies between 45.6 and 182.5 GeV is proposed as a first phase. The design of its two 100-km ring vacuum system has to deal with low-energy (45.6 GeV) high-current (1390 mA) version as well as the...

30. Power Converters R&D – From DC Distribution to Energy Storage Systems

Davide Aguglia (CERN)

01/06/2022, 12:00

Technology R&D

Oral presention (by invitation only)

Power converters are needed to supply all magnets and RF systems for the FCC-ee and FCC-hh. This needs to consider the required accelerator controllability and precision, as well as the electrical AC network power quality. The design procedure needs to minimise the total investment and operational costs (losses, availability, etc.). Aspects such as losses in underground areas, power converters...

92. Robotic Technologies for Operations in Extreme Environments (Inspection, Maintenance, Repair and Upgrade of the FCC)

Caldwell Darwin (IIT)

02/06/2022, 09:00

Technology R&D

Oral presention (by invitation only)

The world (both natural and man-made) is a complex, unstructured, cluttered and dynamically changing environment, in which humans and animals move across varying terrain (towns/cities, industrial infrastructures, countryside, forest, mountains, etc.) easily changing their gait, behaviours and motions, while performing simple and complex tasks involving coordination of the arms, body and legs....

35. Lesson learnt and future vision on remote maintenance robots

Eloise Matheson (CERN)

02/06/2022, 09:25

Technology R&D

Oral presention (by invitation only)

At CERN we heavily use robots for inspection, maintenance and repair tasks throughout our accelerator complex, facing challenges of hazardous environments, cluttered areas, changing conditions and limited communication channels. To support these activities, we invest in research and development in novel fields of hardware, sensors, vision, navigation, manipulation, communication and machine...

93. Robotics for construction : Now, Tomorrow

Kevin SUBRIN (Nantes Université)

02/06/2022, 09:45

Technology R&D

Oral presention (by invitation only)

While the manufacturing industry is strongly engaged in robotization, the construction field is still facing important scientific and technical challenges in this area. Indeed, this sector requires that robots work in large spaces, in accurate ways, on very varied activities where know-how must be adapted to complex environments. Therefore, we present several industrial studies that Nantes...

94. Teleoperation and human-robot-interface

Violeta Redondo Gallego (UPM)

02/06/2022, 10:05

Technology R&D

Oral presention (by invitation only)

The most relevant challenges of telerobotics technologies for the coming years are precise manipulation in semi-structured environments, high levels of tightening torque, and reduced execution time. Also, an iterative design of remote handling processes is necessary to comply with maintenance requirements properly. Other aspects to consider are operator training and robot recovery strategies,...

95. PETRA IV Girder design and installation test

Markus Hüning (DESY)

02/06/2022, 11:00

Oral presention (by invitation only)

39. Bunch length measurement studies using Cherenkov Diffraction radiation

Andreas Schloegelhofer (Technische Universitaet Wien (AT))

02/06/2022, 11:25

Technology R&D

Oral presention (by invitation only)

The beam parameters of FCC-ee with its high-intensity beams and large dynamic range lead to exceptional requirements for beam instrumentation devices. For high energy lepton machines, the detection of synchrotron radiation for the measurement of bunch length has been common practice in the past. However, given the exceptional size of FCC-ee, extracting synchrotron light comes with technical...

45. HiRadMat test of the FCC-ee passive diluter prototype

Mr Alexander Krainer (CERN)

02/06/2022, 11:45

Technology R&D

Oral presention (by invitation only)

Currently a semi-passive beam dilution system is foreseen for the FCC-ee beam dumping system. This system utilizes passive beam diluters (spoilers) made from carbon-based materials. To test the performance of these spoilers, an experiment was carried out in November 2021 at CERNs HiRadMat Facility with scaled prototypes of the proposed spoiler design. By using special beam optics to mimic the...

55. FCC e+e- Arc half-cell mock-up

Federico Carra (CERN)

02/06/2022, 12:05

Technology R&D

Oral presention (by invitation only)

The construction of a mock-up of an arc half-cell of the FCC e+e- collider and booster is proposed, with the goal investigate the aspects related to integration, assembly, transport and maintenance of its components. As a first step, in the next months, it is necessary to develop an optimum overall integration solution for the arc, taking into account all the abovementioned constraints on top...

116. The Ell Cavities program at CERN: Cavity technologies

Marco Garlasche (CERN)

Oral presention (by invitation only)