Towards 0.1 MM Spatial Resolution Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Available Formats

Dublin Core: XML Dublin Core: JSON Dublin Core: Text Dublin Core: RDF/XML UNTL: XML Access METS: XML

Title

  • Main Title Towards 0.1 MM Spatial Resolution

Creator

  • Author: Stoica, A.D.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: US Department of Energy (United States)

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee
    Additional Info: Oak Ridge National Lab., TN (United States)

Date

  • Creation: 2001-07-26

Language

  • English

Description

  • Content Description: A design goal for VULCAN, the SNS engineering diffractometer, is to enable spatial mapping with 0.1 mm resolution. Because the targeted applications often involve the use of large samples or special environment, slits cannot be used for this purpose. In this paper, methods to achieve 0.1 mm spatial resolution are outlined. For the incident beam, a new compact focusing device is proposed. The device is made of a stack of bent silicon wafers, each having a reflective multilayer (supermirror) deposited on one side and a neutron-absorbing layer on the other side. The optimal design to minimize the optical spatial aberrations is discussed and Monte-Carlo simulation results are presented. For the diffracted beam, imaging devices made from thick packets of diffracting bent silicon wafers (known as the Bragg Mirrors) could be used. The requirements to achieve a sharp imaging together with a large phase-space acceptance window are discussed and preliminary testing results are presented.
  • Physical Description: 11 pages

Subject

  • Keyword: Neutron Diffractometers
  • STI Subject Categories: 46 Instrumentation Related To Nuclear Science And Technology
  • Keyword: Testing
  • Keyword: Mirrors
  • STI Subject Categories: 43 Particle Accelerators
  • Keyword: Computerized Simulation
  • Keyword: Spallation Spallation Neutron Source
  • Keyword: Spallation Neutron Source
  • Keyword: Spatial Resolution
  • Keyword: Neutron Sources
  • Keyword: Design
  • Keyword: Focusing
  • Keyword: Phase Space
  • Keyword: Silicon

Source

  • Conference: International Conference on Neutron Scattering (ICANS2001), Conference location not supplied, Conference dates not supplied

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: P01-111389
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 788634
  • Archival Resource Key: ark:/67531/metadc722684
Back to Top of Screen