Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV


BALTAŞ H., ÇEVİK U.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol.266, no.7, pp.1127-1131, 2008 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 266 Issue: 7
  • Publication Date: 2008
  • Doi Number: 10.1016/j.nimb.2008.02.035
  • Journal Name: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.1127-1131
  • Keywords: YBaCuO, effective atomic number, electron density, MASS ATTENUATION COEFFICIENTS, PHOTON ENERGY-ABSORPTION, ESSENTIAL AMINO-ACIDS

Abstract

The effective atomic numbers and electron densities of YBa2Cu3O7-delta superconductor at 59.5, 65.2, 77.1, 94.6, 122 and 136 keV were calculated by using the measured mass attenuation coefficients. Measurements were made by performing transmission experiments in a well-collimated narrow beam geometry set-up by employing Si(Li) detector with a resolution of 0.16 keV at 5.9 keV. These values are found to be in good agreement with theoretical values calculated based on XCOM data. The observed crystal structure of YBa2Cu3O7-delta superconductor is close to the theoretical structure. Z(eff) and N-el experimental values showed good agreement with the theoretical values for calcined and sintered YBa2Cu3O7-delta. (c) 2008 Elsevier B.V. All rights reserved.