Accession Number:

AD0259662

Title:

SOME LUMINESCENT PROPERTIES OF THE MIXED PHENYL- AND P-BIPHENYLYL-SUBSTITUTED SILANES UNDER ULTRA-VIOLET, GAMMA AND BETA EXCITATION

Descriptive Note:

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1961-03-01

Pagination or Media Count:

1.0

Abstract:

Luminescent properties of triphenyl-p-biphenylylsilane silane I, biphenyl-di-p-biphenylylsilane silane II and phenyl-tri-p-biphenylylsilane silane III have been investigated. In comparing these phosphors with anthracene the following results were obtained a Silane I is 8 less effective than anthracene in its gamma detecting ability. b The pulse height of the silanes is about 40 - 45 that of anthracene. c Each of the silanes is about 70 as efficient a beta detector as anthracene. Fluorescence spectra for each of the silanes under ultraviolet and beta stimulation are reported. Peak emission wave-lengths are 400, 400, and 450 millimicrons for Silane I, II, and III respectively. Fluorescence decay constants of 2.53-2.54, 2.62-2.63 and 3.29-3.31 nanoseconds were found for Silane I, II, and III. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE