# Performance Improvement of LTS Undulators for Synchrotron Light Sources

https://mdr.nims.go.jp/datasets/7bb6382f-1b47-4910-b06b-cd4aca688857

## File

- [Resin_ASC_2024 (Barzi).pdf](https://mdr.nims.go.jp/filesets/b64ab809-76ad-40e5-8a77-97eb304e06e1/download) ([Detail](https://mdr.nims.go.jp/filesets/b64ab809-76ad-40e5-8a77-97eb304e06e1.md))

## Id

7bb6382f-1b47-4910-b06b-cd4aca688857

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-07-16T00:33:59.309784Z

## Updated at

2025-07-16T03:30:25.779856Z

## Published at

2025-07-16T03:18:01.018074Z

## Doi

https://doi.org/10.48505/nims.5591

## First published url

https://doi.org/10.1109/tasc.2025.3540817

## Date published

2025-03-19

## Recorded date published



## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Performance Improvement of LTS Undulators for Synchrotron Light Sources
  title_type: original
  lang: en

## Description

- description: The expertise of ANL and FNAL has led to the production of Nb3Sn undulator
    magnets for the ANL Advanced Photon Source (APS). These magnets showed performance
    reproducibility ~100% of the short sample limit, and a design field increase of
    20% at 820A. However, the long training did not allow obtaining the expected 50%
    increase of the on-axis magnetic field with respect to the 1.1 T produced at 450
    A current in the ANL NbTi undulator. To address this, 10-pole long prototypes
    were fabricated, and CTD-101K® was replaced as impregnation material with TELENE®,
    an organic olefin-based thermosetting dicyclopentadiene resin produced by RIMTEC
    Corporation, Japan. Training and magnet retraining after a thermal cycle were
    nearly eliminated, with only a couple of quenches needed before reaching short
    sample limit at over 1,100 A. TELENE will enable operation of Nb3Sn undulators
    much closer to their short sample limit, expanding the energy range and brightness
    intensity of light sources. TELENE is Co-60 gamma radiation resistant up to 7-8
    MGy, and therefore already applicable to impregnate planar, helical and universal
    devices operating in lower radiation environments than high energy colliders.
  description_type: abstract
  lang: und

## Creator

- name: Emanuela Barzi
  role: author
  orcid: https://orcid.org/0000-0001-5829-2147
- name: Masaki Takeuchi
  role: author
- name: Daniele Turrioni
  role: author
  orcid: https://orcid.org/0000-0002-3351-3430
- name: Akihiro Kikuchi
  role: author
  orcid: https://orcid.org/0000-0002-5044-7156

## Contact agent



## Publisher

organization: Institute of Electrical and Electronics Engineers (IEEE)

## Managing organization



## Keyword

- subject: Dicyclopentadiene
  schema: not_defined
- subject: light source
  schema: not_defined
- subject: impregnation
  schema: not_defined
- subject: superconducting undulator
  schema: not_defined
- subject: training
  schema: not_defined

## Rights

- description: "© 2025 IEEE.  Personal use of this material is permitted.  Permission
    from IEEE must be obtained for all other uses, in any current or future media,
    including reprinting/republishing this material for advertising or promotional
    purposes, creating new collective works, for resale or redistribution to servers
    or lists, or reuse of any copyrighted component of this work in other works."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: IEEE Transactions on Applied Superconductivity
  issn: '10518223'
  volume: '35'
  issue: '5'
  start_page: 1
  end_page: 5

## Conference



## Related item



## Funding

- identifier: DE-AC02-07CH11359
  funder_name: Fermi Research Alliance, LLC

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## Fileset

- id: b64ab809-76ad-40e5-8a77-97eb304e06e1
  filename: Resin_ASC_2024 (Barzi).pdf
  content_type: application/pdf
  size: 503788
  md5: 224bc29090e78150587980b03878ddca

## Thumbnail

fileset_id: b64ab809-76ad-40e5-8a77-97eb304e06e1
filename: Resin_ASC_2024 (Barzi).pdf