International Workshop on Breakdown Science and High Gradient Technology (HG2021)

Session

Session 1

19 Apr 2021, 07:00

Conveners

Session 1: Facility Update

• Evgenya Simakov (LANL)
• John Power (Argonne National Lab)
• Emilio Nanni (SLAC National Accelerator Laboratory)

Contribution list Timetable

61. UCLA High Gradient Cryogenic RF Research Program

James Rosenzweig (UCLA)

19/04/2021, 07:00

We present an overview of the various research thrusts embraced by the UCLA program in very high field cryogenic RF acceleration, beginning with roots in both X- and S-band, and extending through a vigorous program in developing C-band accelerating structures. These are employed in extremely high brightness electron sources for both linear colliders and ultra-compact X-ray free-electron lasers...

59. Design and high-power test of a short prototype of high gradient S-band accelerating structure for the FERMI free electron laser linac upgrade

Nuaman Shafqat

19/04/2021, 07:30

Located on the site of the Elettra Sincrotrone in Trieste, Italy, the FERMI free-electron laser (FEL) is a user facility fed by a 1.5 GeV, 10 to 50 Hz, S-band radio-frequency linear accelerator (linac). In order to achieve shorter wavelengths and improved beam quality, a high gradient upgrade to the facility has been proposed which will extend the current capabilities of the system allowing...

74. Update on CERN X-band activities

Nuria Catalan Lasheras (CERN)

19/04/2021, 08:00

After many years, the high gradient programme at CERN, mainly using X-band accelerating structures is now consolidated. The required high gradient and breakdown rate for the CLIC machine is now consistently achieved and our efforts turn to manufacturability, industrialization and the integration of a full module including its power source. CERN is collaborating hand in hand with partner...

78. The CompactLight Design Study

Gerardo D'Auria (Elettra - Sincrotrone Trieste)

19/04/2021, 08:30

Gerardo D’Auria - Elettra Sincrotrone Trieste - on behalf of the CompactLight Consortium
CompactLight (XLS) is a H2020 Design Study funded by the European Union under grant agreement 777431 and carried out by an International Collaboration of 26 partners and 5 third parties.
The project, started in January 2018 with a duration of 48 months, aims at designing an innovative, compact and...

53. The EuPRAXIA@SPARC_LAB X band LINAC

David Alesini (INFN)

19/04/2021, 09:00

EuPRAXIA@SPARC_LAB is the new project of the National Laboratories of the INFN in Frascati and it is a FEL Facility based on plasma beam driven acceleration. The high quality electron beam is generated by an S-band injector and accelerated up to 1 GeV by an X band LINAC. In the presentation the main structure of the linac is presented with details on the X band accelerating module,...

60. CERF-NM: The C-band Engineering Research Facility in New Mexico

John Lewellen (Los Alamos National Laboratory)

19/04/2021, 09:45

The C-band Engineering Research Facility in New Mexico (CERF-NM) consists of the US's highest-power C-band RF source to date; a shielded enclosure rated for 5 MeV and 10 uA; and flexible control and data acquisition system. This talk presents an overview of the C-band research program at Los Alamos, details of the CERF-NM facility, and future plans for the program.

89. Gyrotron-based High Gradient THz Accelerator Test Facility

Sudheer Jawla (MIT)

19/04/2021, 10:15

Particle accelerators at sub-terahertz frequencies would require high-power sources in this frequency range for testing, conditioning and driving the accelerators. Gyrotrons have major advantages for the application to acceleration, especially high average power capability and high wall plug efficiency. Reliable testing and conditioning of high gradient accelerating structures requires power...

73. RF activities concerning S-band high-gradient applications at PSI

Riccardo Zennaro (PSI)

19/04/2021, 10:45

The RF activities related to high-gradient applications at PSI are mainly focused on the completion of the soft X-ray Athos beamline in SwissFEL with the new X-band diagnostic system that is under installation and on the upgrade of the SLS pre-injector linac in the framework of the new SLS2 project. A new simplified injector concept for SLS2 linac based on new S-band structures has been...

88. Smart*Light: Current Activities and Future Concepts

Thomas Lucas

19/04/2021, 11:15

Inverse Compton sources are becoming a popular concept as the future of lab-based x-ray sources. SmartLight is one such facility, currently under commissioning at TU/e, which is based on high gradient X-band technology originally designed for the Compact Linear Collider (CLIC). Here we present an overview of the high-power RF system including the newly arrived 50-cell accelerator. To conclude,...

62. High Gradient Research Activities at AWA

John Power (Argonne National Lab)

19/04/2021, 11:45

85. Update on High Gradient Research at SLAC

Dr Emilio Nanni (SLAC National Accelerator Laboratory), Sami Tantawi (SLAC)

19/04/2021, 12:30

In this presentation we will highlight ongoing high gradient research at SLAC which is focused on understanding the physics of breakdown, understanding the role of materials, developing innovative designs and realizing these structures with advanced manufacturing. Ongoing research spans the microwave to THz range, room temperature to cryogenic, and ultrafast to high energy.

54. High Gradient Research at KEK / Nextef

Tetsuo Abe

19/04/2021, 13:00

In KEK, we have been performing X-band (11.4 GHz) high-gradient research with normal-conducting structures.
In this presentation, we review past achievements, and report the recent status of our high gradient test stand: Nextef.
Moreover, we delineate an outlook for future studies from various aspects.

55. Updates from Tsinghua X-band High power Test Stand (TPOT)

Jiaru Shi

19/04/2021, 13:30

The X-band high-power test stand at Tsinghua University is now capable to deliver 50MW rf pulse at 40Hz stably. This presentation will introduce the recent configuration of the test stand and discuss about experiment results and plans.

56. High Gradient Research Activities at SSRF/SARI

Wencheng Fang

19/04/2021, 14:00

Soft X-ray FEL test facility (SXFEL-TF) at SSRF/SARI has been tested and accepted by Chinese government last year, which is based on the C-band high gradient linac. This talk will introduce details of the C-band high gradient technology at SSRF/SARI, and meanwhile the current status of C-band linac upgrading for SXFEL user facility is also presented. Considering the future SXFEL development,...

58. Overview of High Gradient Research Activities at IHEP

Jingru Zhang

19/04/2021, 14:30

For the CEPC and HEPS projects at IHEP, S-band 3 meters long accelerating structure has been developed. The operating frequencies are 2856 MHz and 2998.8 MHz respectively. The two designs adopted rounding shape cell and internal water cooling. The CEPC structure has finished high-power test in the case of using the energy doubler. The peak power into the structure is 155.4 MW. The design of...