Results 81 to 90 of about 6,417 (203)

Enrichment of 54Fe by Electromagnetic Isotope Separator (EMIS) [PDF]

مجله علوم و فنون هسته‌ای, 2014
Electromagnetic Isotopes Separator (EMIS) has been installed in Karaj since 1991 in order to separate isotopes of a wide range of elements. Iron is successfully separated. Iron element has four stable isotopes, 58Fe, 57Fe, 56Fe and 54Fe.
Z Asadollahi, M. R Ghasemi, A Hashemizadeh, P Sarabadani, H Bakhtiari, S. M Mohati, H Seyedi, H Sadri, M Sharbatdaran   +8 more
doaj  

A Silicon-on-Insulator-Based Dual-Gain Charge-Sensitive Pixel Detector for Low-Noise X-ray Imaging for Future Astronomical Satellite Missions

Sensors, 2018
In this paper, we report on the development of a monolithic active pixel sensor for X-ray imaging using 0.2 µm fully depleted silicon-on-insulator (SOI)-based technology to support next generation astronomical satellite missions.
Sumeet Shrestha, Shoji Kawahito, Hiroki Kamehama, Syunta Nakanishi, Keita Yasutomi, Keiichiro Kagawa, Nobukazu Teranishi, Ayaki Takeda, Takeshi Go Tsuru, Ikuo Kurachi, Yasuo Arai   +10 more
doaj   +1 more source

Energy resolution of alpha particles in a microbulk Micromegas detector at high pressure Argon and Xenon mixtures [PDF]

, 2009
The latest Micromesh Gas Amplification Structures (Micromegas) are achieving outstanding energy resolution for low energy photons, with values as low as 11% FWHM for the 5.9 keV line of $^{55}$Fe in argon/isobutane mixtures at atmospheric pressure.
A. Tomás, Alkhazov, Avignone, Dolbeau, E. Ferrer-Ribas, F. Iguaz, Giomataris, Giomataris, Giomataris, I. Giomataris, I.G. Irastorza, Knoll, Luscher, Ounalli, P. Salin, Ph. Gorodetzky, T. Dafni   +16 more
core   +3 more sources

Promoting effects of aluminum addition on chlorophyll biosynthesis and growth of two cultured iron‐limited marine diatoms

Limnology and Oceanography, Volume 69, Issue 5, Page 1157-1171, May 2024.
Abstract Aluminum (Al) may play a role in the ocean's capacity for absorbing atmospheric CO2 via influencing carbon fixation, export, and sequestration. Aluminum fertilization, especially in iron (Fe)‐limited high‐nutrient, low‐chlorophyll ocean regions, has been proposed as a potential CO2 removal strategy to mitigate global warming.
Linbin Zhou, Fengjie Liu, Eric P. Achterberg, Anja Engel, Peter G.C. Campbell, Claude Fortin, Liangmin Huang, Yehui Tan   +7 more
wiley   +1 more source

High temperature AlInP X-ray spectrometers

Scientific Reports, 2019
Two custom-made Al0.52In0.48P p+-i-n+ mesa photodiodes with different diameters (217 µm ± 15 µm and 409 µm ± 28 µm) and i layer thicknesses of 6 µm have been electrically characterised over the temperature range 0 °C to 100 °C.
S. Zhao, S. Butera, G. Lioliou, A. B. Krysa, A. M. Barnett   +4 more
doaj   +1 more source

X-ray detection with Micromegas with background levels below 10$^{-6}$ keV$^{-1}$cm$^{-2}$s$^{-1}$

, 2013
Micromegas detectors are an optimum technological choice for the detection of low energy x-rays. The low background techniques applied to these detectors yielded remarkable background reductions over the years, being the CAST experiment beneficiary of ...
Aune, S., Aznar, F., Calvet, D., Dafni, T., Diago, A., Druillole, F., Fanourakis, G., Ferrer-Ribas, E., Galán, J., García, J. A., Gardikiotis, A., Garza, J. G., Geralis, T., Giomataris, I., González-Díaz, D., Gómez, H., Herrera, D. C., Iguaz, F. J., Irastorza, I. G., Jourde, D., Luzón, G., Mirallas, H., Mols, J. P., Papaevangelou, T., Rodríguez, A., Seguí, L., Tomás, A., Vafeiadis, T., Yildiz, S. C.   +28 more
core   +1 more source

Characterization of a Southern Ocean deep chlorophyll maximum: Response of phytoplankton to light, iron, and manganese enrichment

Limnology and Oceanography Letters, Volume 9, Issue 2, Page 145-154, April 2024.
Abstract Southern Ocean phytoplankton growth is limited by low iron (Fe) supply and irradiance, impacting the strength of the biological carbon pump. Unfavorable upper ocean conditions, such as low nutrient concentrations, can lead to the formation of deep chlorophyll or biomass maxima (DCM/DBM).
Pauline Latour, Sam Eggins, Pier van der Merwe, Lennart T. Bach, Philip W. Boyd, Michael J. Ellwood, Andrew R. Bowie, Kathrin Wuttig, Robert F. Strzepek   +8 more
wiley   +1 more source

Thermodynamically Guided Improvement of Fe–Mn–Al–Ni Shape‐Memory Alloys

Advanced Materials, Volume 36, Issue 5, February 1, 2024.
The utilization of a microstructural‐informed thermodynamic model enables the creation of pseudoelastic Fe–Mn–Al–Ni shape‐memory alloys with enhanced reversibility. The feasibility of the proposed alloy‐design strategy is proven by complementary spherical nanoindentation and in situ compression tests.
Alexander Walnsch, André Bauer, Jens Freudenberger, Katharina Freiberg, Christina Wüstefeld, Malte Vollmer, Stephanie Lippmann, Thomas Niendorf, Andreas Leineweber, Mario J. Kriegel   +9 more
wiley   +1 more source

A beam monitor based on MPGD detectors for hadron therapy

EPJ Web of Conferences, 2018
Remarkable scientific and technological progress during the last years has led to the construction of accelerator based facilities dedicated to hadron therapy.
Altieri P. R., Di Benedetto D., Galetta G., Intonti R. A., Mercadante A., Nuzzo S., Verwilligen P.   +6 more
doaj   +1 more source

Inactivation of siderophore iron‐chelating moieties by the fungal wheat root symbiont Pyrenophora biseptata

Environmental Microbiology Reports, Volume 16, Issue 1, February 2024.
The wheat root symbiont fungus Pyrenophora biseptata degrades iron‐chelating groups in extracellular siderophores, forming weaker and more labile iron complexes. As a result, iron is expected to become available to plants and microbes that do not possess specialized siderophore uptake mechanisms.
Katie S. French, Emmanuel Chukwuma, Ilan Linshitz, Kosuke Namba, Owen W. Duckworth, Marc A. Cubeta, Oliver Baars   +6 more
wiley   +1 more source