Characterization of Secondary Phases and Other Defects in CDZNTE 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 Characterization of Secondary Phases and Other Defects in CDZNTE

Creator

  • Author: Duff, M.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: DOE

Publisher

  • Name: Savannah River Site (S.C.)
    Place of Publication: [Aiken,] South Carolina
    Additional Info: SRS

Date

  • Creation: 2010-06-30

Language

  • English

Description

  • Content Description: Semiconducting CdZnTe or 'CZT' crystals are very suitable for use as a room temperature-based gamma radiation spectrometer. During the last decade, modifications in growth methods for CZT have significantly improved the quality of the produced crystals however there are material features that can influence the performance of these materials as radiation detectors. For example, various structural heterogeneities within the CZT crystals, such as, pipes, voids, polycrystallinity, and secondary phases (SP) can have a negative impact on the detector performance. In this study, a CZT material was grown by the modified vertical Bridgman growth (MVB) method with zone leveled growth in the absence of excess Te in the melt. Numerous SP were imaged using transmission IR at a volume % of 0.002. Samples from this material were analyzed using various analytical techniques to evaluate its electrical properties, purity and detector performance as radiation spectrometers and to determine the morphology, dimension and elemental /structural composition of one of the SP in this material. This material was found to have a high resistivity and good radiation spectrometer performance. It had SPs that were rich in calcium (Ca), carbon (C) and oxygen (O) (possibly CaCO{sub 3}) or only C and O that were 5 {micro}m or less in diameter.
  • Physical Description: 780503

Subject

  • Keyword: Radiation Detectors
  • Keyword: Modifications
  • Keyword: Spectrometers
  • STI Subject Categories: 46 Instrumentation Related To Nuclear Science And Technology
  • Keyword: Dimensions
  • Keyword: Oxygen
  • Keyword: Gamma Radiation
  • Keyword: Performance
  • Keyword: Radiations
  • Keyword: Carbon
  • Keyword: Morphology
  • Keyword: Defects
  • Keyword: Calcium
  • Keyword: Electrical Properties

Source

  • Journal Name: SPIE Proceedings; Journal Volume: 7805

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.: SRNL-STI-2010-00392
  • Grant Number: DE-AC09-08SR22470
  • DOI: 10.1117/12.862379
  • Office of Scientific & Technical Information Report Number: 986347
  • Archival Resource Key: ark:/67531/metadc1015177

Note

  • Display Note: available
Back to Top of Screen