Autor: Dabrowski, T.J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investigation of Self-Diffusion of Titanium by Fluctuation Autocorrelation Method
Autorzy:: Dąbrowski, A. M.
Biernat, T.
Bęben, J.
Gubernator, W.
Powiązania:: https://bibliotekanauki.pl/articles/1964219.pdf
Data publikacji:: 1997-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 79.70.+q
68.90.+g
Opis:: Diffusion of titanium was examined in the field emission microscope using the fluctuation autocorrelation method. A thick titanium layer (about three monolayers) deposited on a tungsten tip was used. A temperature range of 1260-1410 K was found where diffusion can be described in a hydrodynamic approximation. In this temperature range the diffusion coefficient seems to comply with Arrhenius rule for the activation energy of 1.31 eV and D$\text{}_{0}$ = 3×10$\text{}^{-7}$ cm$\text{}^{2}$s.
Źródło:: Acta Physica Polonica A; 1997, 91, 6; 1091-1095
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Propagation Effects in Photonic Liquid Crystal Fibers with a Complex Structure
Autorzy:: Tefelska, M.
Chychłowski, M.
Woliński, T.
Dąbrowski, R.
Rejmer, W.
Wójcik, J.
Powiązania:: https://bibliotekanauki.pl/articles/1506868.pdf
Data publikacji:: 2010-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.81.Gs
78.20.Bh
42.79.Kr
Opis:: Chiral nematic liquid crystals are very interesting materials to infiltrate photonic crystal fibers since they are characterized by unique optical properties such as selective Bragg reflection, circular dichroism, and optical activity. In this paper the latest experimental results of the photonic crystal fibers filled with new chiral nematic liquid crystals are presented. Spectral properties of the light propagating in the photonic liquid crystal fibers have been measured and analyzed.
Źródło:: Acta Physica Polonica A; 2010, 118, 6; 1259-1261
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Prototype Silicon Position-Sensitive Detector Working with Bragg-Brentano Powder Diffractometer
Autorzy:: Zięba, A.
Dąbrowski, W.
Gryboś, P.
Powroźnik, W.
Stobiecki, T.
Świentek, K.
Słowik, J.
Wiącek, P.
Powiązania:: https://bibliotekanauki.pl/articles/2030562.pdf
Data publikacji:: 2002-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.85.-m
29.40.Wk
Opis:: A prototype 64-channel detector module, comprising a silicon strip detector with strip pitch of 100μm and 64-channel ASIC RX64, was tested with the X-Pert Philips MPD diffractometer. Basic parameters of the detector module, energy resolution, and detection efficiency, were evaluated as a function of the counting rate. Energy resolution of 1.1 keV FWHM for photon rate up to 1×10$\text{}^{7}$ photon/s per 1 cm of the active width of the detector was demonstrated. The prototype detector, when applied in a diffractometer utilizing Bragg-Brentano focusing principle, allows to increase the counting rate by about 2 orders of magnitude with respect to a single counter. Exemplary diffraction patterns of polycrystalline samples of Si and SiO$\text{}_{2}$ (quartz peak cluster) are presented.
Źródło:: Acta Physica Polonica A; 2002, 101, 5; 629-634
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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