Published July 1995 | Version v1
Journal article Metadata-only

High resolution hydrogen profiling in superconducting materials by ion beam analysis (ERD-EXB)

Creators

  • 1. Lyon-1 Univ., 69 - Villeurbanne (France). Inst. de Physique Nucleaire
  • 2. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Groupe d'Etudes des Cavites Supraconductrices

Description

Most superconducting r.f. cavities are made of Nb. Their performance is closely related to the purity of Nb's surface. Adequate characterization tools are needed to qualify the cavity surface. An improvement of the classical ERD method of hydrogen analysis has been achieved using an electromagnetic (EXB) filter. Thus, the depth resolution in Nb was 17 nm. This method was used to select the best procedure for bulk and thin coated Nb cavity fabrication. (author)

Additional details

Publishing Information

Journal Title
Vacuum
Journal Volume
46
Journal Issue
7
Journal Page Range
p. 629-632.
ISSN
0042-207X
CODEN
VACUAV

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
26065324
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALPHA BEAMS; DEPTH; HYDROGEN; IMPURITIES; NIOBIUM; OXYGEN; QUANTITATIVE CHEMICAL ANALYSIS; RECOILS; RF SYSTEMS; SPATIAL DISTRIBUTION; SUPERCONDUCTING CAVITY RESONATORS; SURFACES
Descriptors DEC
BEAMS; CAVITY RESONATORS; CHEMICAL ANALYSIS; DIMENSIONS; DISTRIBUTION; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; HELIUM 4 BEAMS; ION BEAMS; METALS; NONMETALS; RESONATORS; SUPERCONDUCTING DEVICES; TRANSITION ELEMENTS