LINAC2022 - List of Authors (Holic, A.T.)

Paper	Title	Page
TU1AA02	Compact, Turn-Key SRF Accelerators	290
SUPCJO04	use link to see paper's listing under its alternate paper code
	N.A. Stilin, A.T. Holic, M. Liepe, T.I. O’Connell, J. Sears, V.D. Shemelin, J. Turco Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
	The development of simpler, compact Superconducting RF (SRF) systems represents a new subject of research in accelerator science. These compact accelerators rely on advancements made to both Nb₃Sn SRF cavities and commercial cryocoolers, which together allow for the removal of liquid cryogenics from the system. This approach to SRF cavity operation, based on novel conduction cooling schemes, has the potential to drastically extend the range of application of SRF technology. By offering robust, non-expert, turn-key operation, such systems enable the use of SRF accelerators for industrial, medical, and small-scale science applications. This presentation will provide an overview of the significant progress being made at Cornell, Jefferson Lab, and Fermilab (FNAL), including stable cavity operation at 10 MV/m. It will also introduce the primary challenges of this new field and their potential solutions, along with an overview of the various applications which could benefit the most from this technology.

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	Slides TU1AA02 [4.683 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU1AA02
About •	Received ※ 29 August 2022 — Revised ※ 31 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 14 October 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPOGE15	Measuring the Seebeck Coefficient at Cryogenic Temperatures for LCLS-II-HE Project	825
SUPCPA01	use link to see paper's listing under its alternate paper code
	L. Shpani, M. Ge, A.T. Holic, M. Liepe, J. Sears, N.M. Verboncoeur Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
	Funding: This work is supported by the DOE LCLS-II HE Project. The Seebeck effect plays a crucial role during the cooldown procedure in SRF based accelerators, like LCLS-II at SLAC. The temperature-dependent Seebeck coefficient quantitatively measures the strength of electric potential induced by thermal gradients in metals. This effect is present in cryomodules and drives thermoelectric currents generating magnetic fields. These fields can get trapped in cavities and cause additional dissipation in RF fields. We have therefore designed and commissioned an experimental setup that does continuous measurements of the Seebeck coefficient for cryogenic temperatures ranging from 200K down to below 10K. We present results of the measurements of this coefficient for materials commonly used in cryomodules, such as niobium, titanium, niobium-titanium, silicon bronze, and stainless steel.
	Poster THPOGE15 [0.959 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-THPOGE15
About •	Received ※ 27 August 2022 — Revised ※ 04 September 2022 — Accepted ※ 26 September 2022 — Issue date ※ 29 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

TU1AA02

Compact, Turn-Key SRF Accelerators

290

SUPCJO04

use link to see paper's listing under its alternate paper code

N.A. Stilin, A.T. Holic, M. Liepe, T.I. O’Connell, J. Sears, V.D. Shemelin, J. Turco
Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA

The development of simpler, compact Superconducting RF (SRF) systems represents a new subject of research in accelerator science. These compact accelerators rely on advancements made to both Nb₃Sn SRF cavities and commercial cryocoolers, which together allow for the removal of liquid cryogenics from the system. This approach to SRF cavity operation, based on novel conduction cooling schemes, has the potential to drastically extend the range of application of SRF technology. By offering robust, non-expert, turn-key operation, such systems enable the use of SRF accelerators for industrial, medical, and small-scale science applications. This presentation will provide an overview of the significant progress being made at Cornell, Jefferson Lab, and Fermilab (FNAL), including stable cavity operation at 10 MV/m. It will also introduce the primary challenges of this new field and their potential solutions, along with an overview of the various applications which could benefit the most from this technology.

please see instructions how to view/control embeded videos

Slides TU1AA02 [4.683 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TU1AA02

About •

Received ※ 29 August 2022 — Revised ※ 31 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 14 October 2022

Cite •

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

THPOGE15

Measuring the Seebeck Coefficient at Cryogenic Temperatures for LCLS-II-HE Project

825

SUPCPA01

use link to see paper's listing under its alternate paper code

L. Shpani, M. Ge, A.T. Holic, M. Liepe, J. Sears, N.M. Verboncoeur
Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA

Funding: This work is supported by the DOE LCLS-II HE Project.
The Seebeck effect plays a crucial role during the cooldown procedure in SRF based accelerators, like LCLS-II at SLAC. The temperature-dependent Seebeck coefficient quantitatively measures the strength of electric potential induced by thermal gradients in metals. This effect is present in cryomodules and drives thermoelectric currents generating magnetic fields. These fields can get trapped in cavities and cause additional dissipation in RF fields. We have therefore designed and commissioned an experimental setup that does continuous measurements of the Seebeck coefficient for cryogenic temperatures ranging from 200K down to below 10K. We present results of the measurements of this coefficient for materials commonly used in cryomodules, such as niobium, titanium, niobium-titanium, silicon bronze, and stainless steel.

Poster THPOGE15 [0.959 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-THPOGE15

About •

Received ※ 27 August 2022 — Revised ※ 04 September 2022 — Accepted ※ 26 September 2022 — Issue date ※ 29 September 2022

Cite •

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