Determination of the solar angular dependence of the NOAA-20 VIIRS solar diffuser BRDF on-orbit change factor

2019 ◽  
Author(s):  
Ning Lei ◽  
Xiaoxiong Xiong
Keyword(s):  
Angular Dependence ◽  
Change Factor

scholarly journals Characterization and Application of a Grazing Angle Objective for Quantitative Infrared Reflection Microspectroscopy

1995 ◽  
Vol 49 (3) ◽  
pp. 354-360 ◽  
Author(s):  
Stephen V. Pepper
Keyword(s):  
Angular Dependence ◽  
Grazing Angle ◽  
Fresnel Reflection ◽  
Angular Aperture ◽  
Incident Intensity ◽  
Specular Reflectance ◽  
Fresnel Reflection Coefficient ◽  
Infrared Reflection ◽  
Good Agreement

A grazing angle objective on an infrared microspectrometer is studied for quantitative spectroscopy by considering the angular dependence of the incident intensity within the objective's angular aperture. The assumption that there is no angular dependence is tested by comparing the experimental reflectance of Si and KBr surfaces with the reflectance calculated by integrating the Fresnel reflection coefficient over the angular aperture under this assumption. Good agreement was found, indicating that the specular reflectance of surfaces can straightforwardly be quantitatively integrated over the angular aperture without considering nonuniform incident intensity. This quantitative approach is applied to the thickness determination of dipcoated Krytox on gold. The infrared optical constants of both materials are known, allowing the integration to be carried out. The thickness obtained is in fair agreement with the value determined by ellipsometry in the visible. Therefore, this paper illustrates a method for more quantitative use of a grazing angle objective for infrared reflectance microspectroscopy.

Determination of the photoelectron emission probability with inclined X-ray Laue diffraction

1986 ◽  
Vol 42 (1) ◽  
pp. 24-29 ◽  
Author(s):  
A. M. Afanas'ev ◽  
R. M. Imamov ◽  
E. Kh. Mukhamedzhanov ◽  
A. N. Chuzo
Keyword(s):  
Angular Dependence ◽  
Direct Method ◽  
Simple Relation ◽  
Photoelectron Emission ◽  
Laue Diffraction ◽  
X Ray ◽  
Different Depths ◽  
First Time ◽  
A Direct Method

A simple relation has been established between the Fourier component of the probability density P(z) of photoelectron emission from different depths of a crystal and the angular dependence of the emission of photoelectrons formed in inclined X-ray Laue diffraction, which for the first time permitted the use of a direct method for the reconstruction of the P(z) function. Accurate measurements of the angular dependence of photoelectron emission were carried out on a silicon single crystal with diffraction of Cu Kα radiation for different energy ranges. Photoelectrons were recorded by a proportional gas counter specially designed for the energy analysis of photoelectrons under inclined Laue diffraction conditions. The laws predicted by the theory have been fully confirmed, and the corresponding P(z) functions have been obtained.

Photothermal determination of the angular dependence of emissivity

2018 ◽  
Vol 57 (22) ◽  
pp. 6561 ◽  
Author(s):  
Yaqi Zhang ◽  
Gerald Diebold
Keyword(s):  
Angular Dependence

scholarly journals Examining Cfrp Laminate Layup with Contact-Mode Ultrasonic Measurements

1993 ◽  
Vol 2 (2) ◽  
pp. 096369359300200 ◽  
Author(s):  
D K Hsu ◽  
F J Margetan
Keyword(s):  
Angular Dependence ◽  
Shear Waves ◽  
Ultrasonic Signal ◽  
Thickness Direction ◽  
Contact Mode ◽  
Cfrp Laminate ◽  
Cfrp Laminates ◽  
Ultrasonic Measurements

This letter describes contact-mode ultrasonic measurements for evaluating the layup configuration of cross-plied CFRP laminates, particularly the [0m/90n] l layup. Polarization and velocity of shear waves propagating in the thickness direction were used in deducing the percentages of 0 and 90 degree plies. The angular dependence of an acousto-ultrasonic signal was used in the determination of in-plane fiber directions.

scholarly journals EP-1693 Determination of the angular dependence of a CC04 ion chamber

2019 ◽  
Vol 133 ◽  
pp. S910-S911
Author(s):  
A. Prado ◽  
Á. Gaitán ◽  
M. Manzano ◽  
M. Leonor
Keyword(s):  
Angular Dependence ◽  
Ion Chamber

scholarly journals Determination of the angular dependence of Hc2in high Tcsingle crystals by a microwave technique

1991 ◽  
Vol 4 (1S) ◽  
pp. S85-S87 ◽  
Author(s):  
D Shaltiel ◽  
H Bill ◽  
A Grayevsky ◽  
A Junod ◽  
D Lovy ◽  
...  
Keyword(s):  
Angular Dependence ◽  
Microwave Technique
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