Results 51 to 60 of about 1,102,765 (304)

Characterization of carbon contamination under ion and hot atom bombardment in a tin-plasma extreme ultraviolet light source [PDF]

, 2014
Molecular contamination of a grazing incidence collector for extreme ultraviolet (EUV) lithography was experimentally studied. A carbon film was found to have grown under irradiation from a pulsed tin plasma discharge.
Bijkerk, F, Dolgov, A, Lee, C J, Lopaev, D, Medvedev, V., Yakushev, O, Zoethout, E   +6 more
core   +3 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Development and characterization of a dedicated dose monitor for ultrahigh-dose-rate scanned carbon-ion beams

Scientific Reports
The current monochromatic beam mode (i.e., uHDR irradiation mode) of the scanned carbon-ion beam lacks a dedicated dose monitor, making the beam control challenging.
Masashi Yagi, Shinichi Shimizu, Noriaki Hamatani, Takuto Miyoshi, Takuya Nomura, Takashi Toyoda, Mahoro Nakatani, Toshiro Tsubouchi, Masaki Shimizu, Yoshiaki Kuwana, Masumi Umezawa, Masaaki Takashina, Teiji Nishio, Masahiko Koizumi, Kazuhiko Ogawa, Tatsuaki Kanai   +15 more
doaj   +1 more source

Diamondlike flakes [PDF]

, 1985
A carbon coating was vacuum arc deposited on a smooth surface of a target which was simultaneously ion beam sputtered. The bombarding ions have sufficient energy to create diamond bonds. Spalling occurs as the carbon deposit thickens.
Banks, B. A.
core   +1 more source

Creation of a homogeneous plasma column by means of hohlraum radiation for ion-stopping measurements

, 2014
In this work, we present the results of two-dimensional radiation-hydrodynamics simulations of a hohlraum target whose outgoing radiation is used to produce a homogeneously ionized carbon plasma for ion-beam stopping measurements.
Basko, Mikhail M., Faik, Steffen, Grushin, Alexander S., Maruhn, Joachim A., Novikov, Vladimir G., Rienecker, Tim, Rosmej, Olga, Tauschwitz, Anna   +7 more
core   +1 more source

Carbon multicharged ion generation from laser-spark ion source

Review of Scientific Instruments, 2019
Multicharged carbon ions are generated by using a laser-assisted spark-discharge ion source. A Q-switched Nd:YAG laser pulse (1064 nm, 7 ns, ≤ 4.5 × 109 W/cm2) focused onto the surface of a glassy carbon target results in its ablation. The spark-discharge (∼1.2 J energy, ∼1 µs duration) is initiated along the direction of the plume propagation between ...
Md. Mahmudur Rahman, Oguzhan Balki, Hani E. Elsayed-Ali   +2 more
openaire   +4 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Ionization in C⁶⁺+He Collisions: Singly Differential Cross-Sections

Atoms
Differential ionization in C6++He collisions is investigated using the single- and two-center wave-packet convergent close-coupling (WP-CCC) method for projectile energies of 1–6 MeV/u. We present three types of singly differential cross-sections (SDCSs)
Sh. U. Alladustov, K. H. Spicer, N. W. Antonio, A. M. Kotian, A. S. Kadyrov   +4 more
doaj   +1 more source

GEM Operation in Negative Ion Drift Gas Mixtures

, 2003
The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in carbon disulfide vapor at low pressure, and in mixtures of carbon disulfide with Argon and Helium,
A Schreiner, C.J Martoff, Crane, G Bonvincini, Giomataris, I Shipsey, J Miyamoto, M Katz-Hyman, Martoff, Ohnuki, Pack, R Ayad, Rice-Evans, Sauli, Sauli, Snowden-Ifft   +15 more
core   +1 more source

Carbon incorporation in ZnSe grown by metalorganic chemical vapor deposition [PDF]

, 1989
Carbon incorporation in ZnSe films grown by metalorganic chemical vapor deposition is reported. Secondary‐ion mass spectrometry measurements in ZnSe films grown from methylallylselenide and dimethylzinc show an enhanced carbon accumulation at the ...
Giapis, Konstantinos P., Jensen, Klavs F., Pachuta, Steven J., Potts, J. E.   +3 more
core   +1 more source