On the vectorial photoelectric effect at 2.69 keVRecent experiments conducted to study the vectorial photoelectric effect with CsI, Al2O3 and Si photocathodes at 2.69 keV indicate null results. Detailed analysis shows that previously measured modulation can be well explained by geometrical misalignment and a combination of the asymmetric shape of the incident X-ray beam and a small detection area of the photoelectron detector. After the elimination of the sources of spurious modulation, we observed a modulation factor of less than 3 percent for a grazing incidence angle as small as 5 deg. There is no observable difference in the pulse height distribution between s and p states.
Document ID
19930049478
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shaw, P. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hanany, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Liu, Y. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Church, E. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fleischman, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kaaret, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Novick, R. (Columbia Univ. New York, United States)
Santangelo, A. (CNR Ist. di Fisica Cosmica con Applicazioni all'Informatica, Palermo, Italy)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Production and analysis of polarized X rays; Proceedings of the Meeting, San Diego, CA, July 23, 24, 1991 (A93-33470 12-90)
Publisher: Society of Photo-Optical Instrumentation Engineers