High-energy x-ray production with pyroelectric crystals

Jeffrey A. Geuther, Yaron Danon

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

The invention of pyroelectric x-ray generator technology has enabled researchers to develop ultraportable, low-power x-ray sources for use in imaging, materials analysis, and other applications. For many applications, the usefulness of an x-ray source is determined by its yield and endpoint energy. In x-ray fluorescence, for example, high-energy sources enable the excitation of the K -shell x-ray peaks for high- Z materials as well as the lower-energy L -shell peaks, allowing more positive sample identification. This report shows how a paired-crystal pyroelectric source can be used to approximately double the endpoint x-ray energy, in addition to doubling the x-ray yield, versus a single-crystal source. As an example of the advantage of a paired-crystal system, we present a spectrum showing the fluorescence of the K shell of thorium using a pyroelectric source, as well as a spectrum showing the fluorescence of the K shell of lead. Also shown is an x-ray spectrum with an endpoint energy of 215 keV.

Original languageEnglish (US)
Article number104916
JournalJournal of Applied Physics
Volume97
Issue number10
DOIs
StatePublished - May 15 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'High-energy x-ray production with pyroelectric crystals'. Together they form a unique fingerprint.

  • Cite this