theoretical intensity
Recently Published Documents


TOTAL DOCUMENTS

33
(FIVE YEARS 0)

H-INDEX

9
(FIVE YEARS 0)

2018 ◽  
Vol 4 (1) ◽  
pp. 12-24
Author(s):  
Борис Криссинель ◽  
Boris Krissinel

The paper reports the results of calculations of the center-to-limb intensity of optically thin line emission in EUV and FUV wavelength ranges. The calculations employ a multicomponent model for the quiescent solar corona. The model includes a collection of loops of various sizes, spicules, and free (inter-loop) matter. Theoretical intensity values are found from probabilities of encountering parts of loops in the line of sight with respect to the probability of absence of other coronal components. The model uses 12 loops with sizes from 3200 to 210000 km with different values of rarefaction index and pressure at the loop base and apex. The temperature at loop apices is 1 400 000 K. The calculations utilize the CHIANTI database. The comparison between theoretical and observed emission intensity values for coronal and transition region lines obtained by the SUMER, CDS, and EIS telescopes shows quite satisfactory agreement between them, particularly for the solar disk center. For the data acquired above the limb, the enhanced discrepancies after the analysis refer to errors in EIS measurements.


2018 ◽  
Vol 4 (1) ◽  
pp. 3-13
Author(s):  
Борис Криссинель ◽  
Boris Krissinel

The paper reports the results of calculations of the center-to-limb intensity of optically thin line emission in EUV and FUV wavelength ranges. The calculations employ a multicomponent model for the quiescent solar corona. The model includes a collection of loops of various sizes, spicules, and free (inter-loop) matter. Theoretical intensity values are found from probabilities of encountering parts of loops in the line of sight with respect to the probability of absence of other coronal components. The model uses 12 loops with sizes from 3200 to 210000 km with different values of rarefaction index and pressure at the loop base and apex. The temperature at loop apices is 1 400 000 K. The calculations utilize the CHIANTI database. The comparison between theoretical and observed emission intensity values for coronal and transition region lines obtained by the SUMER, CDS, and EIS telescopes shows quite satisfactory agreement between them, particularly for the solar disk center. For the data acquired above the limb, the enhanced discrepancies after the analysis refer to errors in EIS measurements.


2013 ◽  
Vol 203-204 ◽  
pp. 185-188
Author(s):  
Małgorzata Rabiej ◽  
Stanisław Rabiej

The most important structural parameters of semicrystalline polymers can be determined by modeling of their structure and best fitting of a theoretical intensity distribution calculated for the assumed model to the experimental SAXS curve. This paper presents a module of a computer program SAXSDAT dedicated to such calculations.


2010 ◽  
Vol 39 (6) ◽  
pp. 399-406 ◽  
Author(s):  
R. Ogawa ◽  
H. Ochi ◽  
M. Nishino ◽  
N. Ichimaru ◽  
R. Yamato
Keyword(s):  
X Rays ◽  

2005 ◽  
Vol 32 (12) ◽  
pp. n/a-n/a ◽  
Author(s):  
B. D. Sharpee ◽  
T. G. Slanger ◽  
P. C. Cosby ◽  
D. L. Huestis

Sign in / Sign up

Export Citation Format

Share Document