scholarly journals Nonparametric inference of photon energy distribution from indirect measurement

Bernoulli ◽  
2007 ◽  
Vol 13 (2) ◽  
pp. 365-388 ◽  
Author(s):  
E. Moulines ◽  
F. Roueff ◽  
A. Souloumiac ◽  
T. Trigano
Keyword(s):  
Energy Distribution ◽  
Photon Energy ◽  
Indirect Measurement ◽  
Nonparametric Inference ◽  
Photon Energy Distribution

Two-photon energy distribution from the decay of the 21S0state in He-like uranium

2013 ◽  
Vol 87 (6) ◽  
Author(s):  
D. Banaś ◽  
A. Gumberidze ◽  
S. Trotsenko ◽  
A. V. Volotka ◽  
A. Surzhykov ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Photon Energy ◽  
Two Photon ◽  
Photon Energy Distribution

Photon-energy distribution of hot-carrier photoemission from LOCOS and trench-isolated MOSFETs

1994 ◽  
Vol 37 (7) ◽  
pp. 1421-1428 ◽  
Author(s):  
Takashi Ohzone ◽  
Hideyuki Iwata ◽  
Yukiharu Uraoka ◽  
Shinji Odanaka
Keyword(s):  
Energy Distribution ◽  
Photon Energy ◽  
Hot Carrier ◽  
Photon Energy Distribution

scholarly journals b→s+γ: A QCD-CONSISTENT ANALYSIS OF THE PHOTON ENERGY DISTRIBUTION

1996 ◽  
Vol 11 (03) ◽  
pp. 571-611 ◽  
Author(s):  
R. DAVID DIKEMAN ◽  
M. SHIFMAN ◽  
N.G. URALTSEV
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Energy Distribution ◽  
Photon Energy ◽  
Experimental Uncertainty ◽  
Gluon Emission ◽  
Hard Gluon ◽  
Photon Energy Distribution ◽  
Theoretical Side ◽  
The Way

The photon energy distribution in the inclusive b→s+γ transitions is a combination of two components: the first component, soft physics, is determined by the so-called primordial distribution function, while the second component, perturbative physics, is governed by hard gluon emission. A simple ansatz is suggested for the primordial distribution function which obeys the QCD constraints known so far. We then discuss in detail how hard gluon emission affects the energy distribution. An extension of the Sudakov approximation is worked out incorporating the Brodsky-Lepage-Mackenzie prescription and its generalizations. We explicitly calculate the marriage of nonperturbative and perturbative effects in the way required by OPE, introducing separation scale µ. A few parameters, such as mb and [Formula: see text] affect the shape of the distribution and, thus, can be determined by matching to the experimental data. The data, still scarce, while not giving precise values for these parameters, yield consistency with theory: the current values of the above parameters lie within experimental uncertainty. On the theoretical side we outline a method allowing one to go beyond the practical version of OPE.

Photon energy distribution of some typical diagnostic x-ray beams

1977 ◽  
Vol 4 (3) ◽  
pp. 187-197 ◽  
Author(s):  
Thomas R. Fewell ◽  
Ralph E. Shuping
Keyword(s):  
Energy Distribution ◽  
Photon Energy ◽  
X Ray ◽  
Photon Energy Distribution

Prospects for solar synthesis. II. Study of the photocyclization of α-(o-tolyl)acetophenone in solution and in crosslinked ethylene – vinyl acetate beads

1985 ◽  
Vol 63 (6) ◽  
pp. 1333-1336 ◽  
Author(s):  
J. E. Guillet ◽  
W. K. MacInnis ◽  
A. E. Redpath
Keyword(s):  
Solar Radiation ◽  
Energy Distribution ◽  
Vinyl Acetate ◽  
Polymer Matrix ◽  
Solar Spectrum ◽  
Ethylene Vinyl Acetate ◽  
Solid Polymer ◽  
Quantum Yields ◽  
Photochemical Transformations ◽  
Photon Energy Distribution

Studies of the photocyclization of α-(o-tolyl)acetophenone dissolved in crosslinked ethylene–vinyl acetate beads show that quantum yields close to unity can be achieved, even in the solid polymer matrix. In preliminary experiments using solar radiation it was demonstrated that the rates of photochemical transformations are close to those calculated from the photon energy distribution of the solar spectrum.

scholarly journals Optimizing the role of impact ionization in conventional insulators

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Efstratios Manousakis
Keyword(s):  
Energy Distribution ◽  
Fermi Level ◽  
Impact Ionization ◽  
Strongly Correlated ◽  
Carrier Generation ◽  
Efficient Separation ◽  
Photovoltaic Efficiency ◽  
Halide Perovskites ◽  
Photon Energy Distribution

AbstractA mechanism for multiple carrier generation through impact ionization (IA) proposed earlier for bulk systems of strongly correlated insulators is generalized to the case of conventional insulators that contain localized bands a few eV above and below the highest occupied band. Specifically, we study the case of hybridization of localized orbitals with more dispersive bands near the Fermi level, where the generated multiple carriers, which ultimately decay to the edges of the dispersive bands by means of IA processes, acquire lighter mass and this could allow their more efficient separation before recombination. We argue that this may be applicable to the case of halide perovskites and it could be one of the reasons for their observed photovoltaic efficiency. We discuss the criteria one should use to uncover the appropriate material in order to harvest the optimum effect of IA for the spectrum of the solar photon energy distribution.

scholarly journals Formation of photoelectron spectra of alloys niobium-molybdenum-zirconium

2021 ◽  
Vol 264 ◽  
pp. 05036
Author(s):  
Yokub Ergashov ◽  
Burkhon Donaev ◽  
Sherzod Khudainazarov ◽  
Jakhongir Normuminov
Keyword(s):  
Energy Distribution ◽  
Photon Energy ◽  
Energy Region ◽  
Zirconium Alloys ◽  
Low Energy ◽  
Photoelectron Spectra ◽  
Photoelectron Emission ◽  
Before And After

Crystals of niobium and its alloys obtained by low-energy implantation of molybdenum and zirconium ions were studied in a multi-functional installation. The energy distribution curves of N (E) photoelectrons before and after heating niobium – molybdenum – zirconium alloys were studied. The contribution of surface zones formed by molybdenum and zirconium atoms to photoelectron emission in the photon energy region of 8–10 eV was analyzed.

Sign in / Sign up

Export Citation Format

Share Document