LINAC2022 - List of Authors (Grassellino, A.)

Paper	Title	Page
MOPOJO03	HELEN: A Linear Collider Based on Advanced SRF Technology	31
	S.A. Belomestnykh, P.C. Bhat, M. Checchin, A. Grassellino, M. Martinello, S. Nagaitsev, S. Posen, A.S. Romanenko, V.D. Shiltsev, A. Valishev, V.P. Yakovlev Fermilab, Batavia, Illinois, USA S.A. Belomestnykh Stony Brook University, Stony Brook, USA H. Padamsee Cornell University, Ithaca, New York, USA
	Funding: Work supported by the Fermi National Accelerator Laboratory, managed and operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. This paper discusses recently proposed Higgs-Energy LEptoN (HELEN) e+e’ linear collider based on advances superconducting radio frequency technology. The collider offers cost and AC power savings, smaller footprint (relative to the ILC), and could be built at Fermilab with an Interaction Region within the site boundaries. After the initial physics run at 250 GeV, the collider could be upgraded either to higher luminosity or to higher (up to 500 GeV) energies.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO03
About •	Received ※ 24 August 2022 — Revised ※ 26 August 2022 — Accepted ※ 04 September 2022 — Issue date ※ 15 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TU1AA03	R&D Towards High Gradient CW SRF Cavities	295
	D. Bafia, P. Berrutti, B. Giaccone, A. Grassellino, D.V. Neuffer, S. Posen, A.S. Romanenko Fermilab, Batavia, Illinois, USA
	This talk will discuss Fermilab’s recent progress in the surface engineering of superconducting radio-frequency (SRF) cavities geared toward producing simultaneously high quality factors and high accelerating gradients in cryomodules. We investigate possible microscopic mechanisms that drive improved performance by carrying out sequential RF tests on cavities subjected to low temperature baking. We compare performance evolution to observations made with material science techniques and find correlations with material parameters. We also discuss other key advancements that enable high gradient operation in cryomodules.

	please see instructions how to view/control embeded videos
	Slides TU1AA03 [2.007 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU1AA03
About •	Received ※ 20 August 2022 — Revised ※ 24 August 2022 — Accepted ※ 30 August 2022 — Issue date ※ 16 October 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

HELEN: A Linear Collider Based on Advanced SRF Technology

31

S.A. Belomestnykh, P.C. Bhat, M. Checchin, A. Grassellino, M. Martinello, S. Nagaitsev, S. Posen, A.S. Romanenko, V.D. Shiltsev, A. Valishev, V.P. Yakovlev
Fermilab, Batavia, Illinois, USA
S.A. Belomestnykh
Stony Brook University, Stony Brook, USA
H. Padamsee
Cornell University, Ithaca, New York, USA

Funding: Work supported by the Fermi National Accelerator Laboratory, managed and operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy.
This paper discusses recently proposed Higgs-Energy LEptoN (HELEN) e+e’ linear collider based on advances superconducting radio frequency technology. The collider offers cost and AC power savings, smaller footprint (relative to the ILC), and could be built at Fermilab with an Interaction Region within the site boundaries. After the initial physics run at 250 GeV, the collider could be upgraded either to higher luminosity or to higher (up to 500 GeV) energies.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOJO03

About •

Received ※ 24 August 2022 — Revised ※ 26 August 2022 — Accepted ※ 04 September 2022 — Issue date ※ 15 September 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TU1AA03

R&D Towards High Gradient CW SRF Cavities

295

D. Bafia, P. Berrutti, B. Giaccone, A. Grassellino, D.V. Neuffer, S. Posen, A.S. Romanenko
Fermilab, Batavia, Illinois, USA

This talk will discuss Fermilab’s recent progress in the surface engineering of superconducting radio-frequency (SRF) cavities geared toward producing simultaneously high quality factors and high accelerating gradients in cryomodules. We investigate possible microscopic mechanisms that drive improved performance by carrying out sequential RF tests on cavities subjected to low temperature baking. We compare performance evolution to observations made with material science techniques and find correlations with material parameters. We also discuss other key advancements that enable high gradient operation in cryomodules.

please see instructions how to view/control embeded videos

Slides TU1AA03 [2.007 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU1AA03

About •

Received ※ 20 August 2022 — Revised ※ 24 August 2022 — Accepted ※ 30 August 2022 — Issue date ※ 16 October 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)