L-SHELL FLUORESCENCE YIELDS OF Pt, Tl, AND Pb

Journal Article · Sat Dec 15 04:00:00 EST 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.128.2671· OSTI ID:4756265

Jopson, R C; Mark, H; Swift, C D

Partial L-shell fluorescence yields for three heavy elements have been measured using an x-ray coincidence counting method. Vacancies in the K shell of the atom are produced either by K-electron capture or internal conversion of a nuclear gamma ray in the K shell. The coincidence rate between the K and L x rays observed after the creation of the K vacancy determines the partial fluorescence yield, /sup omega /KL. This quantity is defined as the fluorescence yield of those vacancies in the L shell created by K/sub alpha /sub 1/ and K alpha /sub 2/ x-ray emission. In some cases, it was also possible to determine the partial fluorescence yield, omega /sub LL/ of the L shell following L-electron capture. The results obtained are in reasonable agreement with previous measurements. The relationship between omega /sub Kl/, omega / sub LL/, and the fluorescence yields of individual L subshells is discussed. (auth)

• Research Organization: Univ. of California, Livermore
• NSA Number: NSA-17-005135
• OSTI ID: 4756265
• Report Number(s): UCRL-6944; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 128; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ATOMIC MODELS
ATOMS
CAPTURE
COINCIDENCE METHODS
EFFICIENCY
ELECTRONS
EMISSION
ENERGY LEVELS
FLUORESCENCE
GAMMA RADIATION
INTERNAL CONVERSION
LEAD
MEASURED VALUES
NUCLEAR MODELS
PHYSICS
PLATINUM
SHELL MODELS
SHELLS
TANTALUM
X RADIATION