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FRIXA01 |
Achievement of the ILC Milestone by Beam Operation of STF-2 Accelerator at KEK |
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- Y. Yamamoto
KEK, Ibaraki, Japan
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The STF-2 accelerator with fourteen 9-cell superconducting cavities at KEK has achieved many milestones for the International Linear Collider (ILC) project since 2019. The main achievements are the beam acceleration at 33 MV/m with nine cavities, the max. beam energy of 384 MeV, the beam power of 6 kW, the beam operation with 5.8 mA per bunch (21.5 ¿A as the beam intensity), the beam emittance of 5 mm mrad, the Low-Level RF control to compensate with heavy beam loading, etc. On the other hand, in these cool-down tests, the performance of cavities has changed including the radiation level. In this talk, these achievements and experiences in the STF-2 accelerator will be presented.
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Slides FRIXA01 [6.612 MB]
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FRIXA02 |
SRF Thin Films: Not just for Cavities |
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- A-M. Valente-Feliciano
JLab, Newport News, Virginia, USA
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Funding: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177.
Recent years have seen renewed interest and activities in developing SRF cavity materials based on thin film technologies. In this framework, considerable progress has been achieved in the development of high quality films and layered structures along with associated deposition techniques such as ECR, HiPIMS, and ALD. Beyond cavity applications, the developments in SRF thin film technologies find a variety of applications in the fields of superconducting metamaterials, electronics, sensors and quantum devices. High quality Nb films with high RRR open the way for enhanced coherence times for quantum qbits. Other SRF thin films such as NbTiN are developed for superconducting backend processes for future generations of computing hardware and radiation-hard sensors for nuclear and high-energy physics. The unifying theme across these technologies is that the same physics and material properties such as extreme low loss, stability, and manufacturability are required. This talk will present an overview of the emerging applications of SRF films and structures beyond accelerator cavities.
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Slides FRIXA02 [6.385 MB]
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reference for this paper using
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※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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