Published September 2015 | Version v1
Miscellaneous Metadata-only

New results of development on high efficiency high gradient superconducting rf cavities

Creators

  • 1. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
  • 2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  • 3. Peking Univ., Beijing (China)
  • 4. OTIC, Ningxia (China)

Description

We report on the latest results of development on high-efficiency high-gradient superconducting radio frequency (SRF) cavities. Several 1-cell cavities made of large-grain niobium (Nb) were built, processed and tested. Two of these cavities are of the Low Surface Field (LSF) shape. Series of tests were carried out following controlled thermal cycling. Experiments toward zero-field cooling were carried out. The best experimentally achieved results are Eacc = 41 MV/m at Q0 = 6.5x1010 at 1.4 K by a 1-cell 1.3 GHz large-grain Nb TTF shape cavity and Eacc = 49 MV/m at Q0 = 1.5x1010 at 1.8 K by a 1-cell 1.5 GHz large-grain Nb CEBAF upgrade low-loss shape cavity.

Availability note (English)

Available from https://misportal.jlab.org/ul/publications/downloadFile.cfm?pub_id=13701; PURL: http://www.osti.gov/servlets/purl/1223452/

Additional details

Identifiers

URL
https://misportal.jlab.org/ul/publications/downloadFile.cfm?pub_id=13701; http://www.osti.gov/servlets/purl/1223452/;

Publishing Information

Imprint Pagination
3 p.
Report number
JLAB-ACC--15-2075

Conference

Title
6. International Particle Accelerator Conference
Acronym
IPAC 2015
Dates
3-8 May 2015
Place
Richmond, VA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
47085946
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
COOLING; EFFICIENCY; GHZ RANGE 01-100; NIOBIUM; QUALITY FACTOR; SHAPE; SUPERCONDUCTING CAVITY RESONATORS; TEMPERATURE RANGE 0000-0013 K; THERMAL CYCLING
Descriptors DEC
CAVITY RESONATORS; DIMENSIONLESS NUMBERS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FREQUENCY RANGE; GHZ RANGE; METALS; REFRACTORY METALS; RESONATORS; SUPERCONDUCTING DEVICES; TEMPERATURE RANGE; TRANSITION ELEMENTS

Optional Information

Contract/Grant/Project number
AC05-06OR23177
Funding organization
USDOE Office of Science - SC, Nuclear Physics - NP (SC-26) (United States)
Secondary number(s)
OSTIID--1223452; DOE/OR/23177--3432