Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Krassimir Stoev"'
Autor:
Krassimir Stoev, Eli Simova
Publikováno v:
e-Journal of Nondestructive Testing, Vol 29, Iss 8 (2024)
Opioids and explosives are believed to present a significant threat to the public in Canada. For example, more than 12800 deaths in Canada were attributed to opioid overdoses in the period from 2016 to 2019, which is nearly twice the number of the de
Externí odkaz:
https://doaj.org/article/8877be494ba24fd19f15a094b5c5e98e
Autor:
Krassimir Stoev, Kenji Sakurai
Publikováno v:
Analytical Sciences. 36:901-922
In the early 1960s, scientists achieved the breakthroughs in the fields of solid surfaces and artificial layered structures. The advancement of surface science has been supported by the advent of ultra-high vacuum technologies, newly discovered and e
Autor:
Kenji Sakurai, Krassimir Stoev
Publikováno v:
Powder Diffraction. 28:105-111
Recently, a new experimental setup for quick X-ray reflectivity (q-XRR) measurements was proposed, which is based on simultaneous recording of an X-ray reflectivity curve over all angles of interest. This new setup for q-XRR allows measurements to be
Publikováno v:
Acta Crystallographica Section A Foundations and Advances. 70:C878-C878
X-ray reflectometry is powerful in determining internal structure of multilayered thin films, such as thickness and density of each layer, as well as the roughness of surface and interfaces [1]. The measurement requires some precise angular scans nea
Autor:
Kenji Sakurai, Krassimir Stoev
Publikováno v:
Acta Crystallographica Section A Foundations and Advances. 70:C885-C885
The glass transition takes place in amorphous materials (like polymers) during heating or cooling, and can be described as reversible transition from a hard and brittle state into a rubber-like state. Although physical properties of the material chan
Autor:
Krassimir Stoev, Kenji Sakurai
Publikováno v:
Japanese Journal of Applied Physics. 53:05FH01
A method for optimizing the design of a multilayer X-ray mirror to obtain a high X-ray reflectivity at a specific angle and for a specific energy, based on quarter-wave layer thickness, is described. The quarter-wave design method is widely used for
Publikováno v:
Optical Interference Coatings.
Analytical techniques were applied for analysis of monitor data from many deposition runs to measure the end-pointing accuracy. Results show that the magnitude of transmission ripple in the filter pass-band spectrum bears a strong correlation to the
Publikováno v:
Japanese Journal of Applied Physics. 42:3709-3710
A realistic rutile (110) surface was studied by means of grazing-incidence X-ray reflectivity measurement using 16.0 keV monochromatic synchrotron radiation. The data were analyzed by considering the density gradient, rather than employing convention
Autor:
Kenji Sakurai, Krassimir Stoev
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 24:012014
Quick x-ray reflectivity (QXRR) is a new surface examination technique for studying fast processes at the surface and interface of the materials on a nano-scale. The currently available models for classical scanning-type x-ray reflectivity cannot be