Published June 2017 | Version v1
Report Metadata-only

Hydroforming SRF three-cell cavity from seamless niobium tube

Creators

  • 1. High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki (Japan)
  • 2. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
  • 3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Description

The authors are developing the manufacturing method for superconducting radio frequency (SRF) cavities by using a hydroforming instead of using conventional electron beam welding (EBW). We expect higher reliability and reduced cost with hydroforming. For successful hydroforming, high-purity seamless niobium tubes with good formability as well as advancing the hydroforming technique are necessary. Using a seamless niobium tube from ATI Wah Chang, we were able to successfully hydroform a 1.3 GHz three-cell TESLA-like cavity and obtained an accelerating gradient of 32 MV/m. A barrel polishing process after the hydroforming was omitted. The vertical test was carried out with very rough inside surface. We got amazing and interesting result. (author)

Part of:
Proceedings of the 18th KEK mechanical engineering workshop

Additional details

Additional titles

Original title (Japanese)
シームレスニオブパイプを用いた液圧成形による3セル超伝導加速空洞の製造と評価

Identifiers

URL
https://lib-extopc.kek.jp/preprints/PDF/2017/1725/1725001.pdf;

Publishing Information

Imprint Title
Proceedings of the 18th KEK mechanical engineering workshop
Imprint Pagination
90 p.
Journal Page Range
p. 57-61
Report number
KEK-PROC--2017-1

Conference

Title
18. KEK mechanical engineering workshop
Dates
14 Apr 2017
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
55009081
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CAVITIES; CHEMICAL COMPOSITION; COST ESTIMATION; ELECTRON BEAM WELDING; ELONGATION; INTERNATIONAL COOPERATION; INTERNATIONAL LINEAR COLLIDER; MECHANICAL POLISHING; NIOBIUM; RF SYSTEMS; ROUGHNESS; SUPERCONDUCTING CAVITY RESONATORS; TENSILE PROPERTIES
Descriptors DEC
ACCELERATORS; CAVITY RESONATORS; COOPERATION; DEFORMATION; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FABRICATION; JOINING; LINEAR ACCELERATORS; LINEAR COLLIDERS; MECHANICAL PROPERTIES; METALS; POLISHING; REFRACTORY METALS; RESONATORS; SUPERCONDUCTING DEVICES; SURFACE FINISHING; SURFACE PROPERTIES; TRANSITION ELEMENTS; WELDING

Optional Information

Notes
8 refs., 11 figs., 2 tabs. Imprint:#7B2C#18#56DE##9AD8##30A8##30CD##7814##30E1##30AB##FF65##30EF##30FC##30AF##30B7##30E7##30C3##30D7##5831##544A##96C6#