Comparative measurements on LaBr3(Ce) and LaCl3(Ce) scintillators coupled to PSPMT

Wonho Lee, David K. Wehe, Byoungjik Kim

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Lanthanum halide detector energy resolution measurements at 662 keV for a LaBr3 crystal (3.67%) and a 6 × 6 array of LaCl3 crystals (4.65%) coupled to a 5″ diameter Hamamatsu PSPMT are compared to measurements on arrays of NaI (7.37%) and BGO (16.07%). The uncorrected energy resolution using the entire LaCl3 array is poor (13%) due to weaker responses from the edge pixels, but is improved to 5.85% with a position dependent gain correction. Spectra are presented from a well-collimated source focused upon a small area of the detector, as well as uncollimated 2D flood-fields.

Original languageEnglish
Pages (from-to)1119-1122
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number4
Publication statusPublished - 2005 Aug
Externally publishedYes

Bibliographical note

Funding Information:
Manuscript received November 3, 2004; revised May 10, 2005. This work was supported by the U.S. Department of Energy under Grant DE-FG04-86-NE37969.


  • LaBr
  • LaCl
  • Lanthanum halide

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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