Results 31 to 40 of about 102,823 (319)

Plutonium in the Arctic Marine Environment — A Short Review

The Scientific World Journal, 2004
Anthropogenic plutonium has been introduced into the environment over the past 50 years as the result of the detonation of nuclear weapons and operational releases from the nuclear industry. In the Arctic environment, the main source of plutonium is from
Lindis Skipperud
doaj   +1 more source

Computational model and physical and technical factors determining the plutonium proliferation resistance [PDF]

Nuclear Energy and Technology, 2018
Since the closed nuclear fuel cycle suggests that plutonium is extracted from irradiated fuel and is recycled in nuclear reactors as part of the loaded fuel, proliferation resistance of fissile materials (plutonium) is becoming a problem of a practical ...
Yevgeny Kulikov, Gennady Kulikov, Vladimir Apse, Anatoly Shmelev, Nikolay Geraskin   +4 more
doaj   +3 more sources

The Debye-Waller factor of stabilized delta-Pu

, 2007
The Debye-Waller factor has been calculated for stabilized delta-phase plutonium with 5% aluminum. A quasi-harmonic Born-von Karman force model with temperature dependent phonon frequencies was used to calculate the mean-square thermal atomic ...
Calder, Graf, Graf, Jeong, Jeong, Lashley, Lawson, Lawson, Lawson, Matthias J. Graf, McQueeney, Migliori, Squires, Wong, Wong   +14 more
core   +1 more source

Kinetic Study and Process Optimization of Plutonium Barrier Units for Enhanced Plutonium Stripping in the PUREX Process

Separations
In the PUREX (the plutonium uranium reduction extraction) process, a plutonium barrier unit (1BXX) is used to achieve deep plutonium stripping. According to the operating experience of the French reprocessing plant, after the separation of uranium and ...
Haowei Zhu, Qi Chen, Chen Zuo, Tianchi Li, Jieqiong Yuan, Ziqian Zhao, Taihong Yan, Weifang Zheng   +7 more
doaj   +1 more source

Plutonium dioxide particle imaging using a high-resolution alpha imager for radiation protection

Scientific Reports, 2021
The internal exposure of workers who inhale plutonium dioxide particles in nuclear facilities is a crucial matter for human protection from radiation. To determine the activity median aerodynamic diameter values at the working sites of nuclear facilities
Yuki Morishita, Shunsuke Kurosawa, Akihiro Yamaji, Masateru Hayashi, Makoto Sasano, Taisuke Makita, Tetsushi Azuma   +6 more
doaj   +1 more source

Methodology for the Preparation and Validation of Plutonium Age Dating Materials.

Analytical Chemistry, 2018
The present work describes a method for the preparation and validation of plutonium age dating reference materials. The test samples prepared in this context could be used to validate experimental protocols for determining the production date of ...
Z. Varga, A. Nicholl, J. Zsigrai, M. Wallenius, K. Mayer   +4 more
semanticscholar   +1 more source

Computational and experimental forensics characterization of weapons-grade plutonium produced in a thermal neutron environment

Nuclear Engineering and Technology, 2018
The growing nuclear threat has amplified the need for developing diverse and accurate nuclear forensics analysis techniques to strengthen nuclear security measures.
Jeremy M. Osborn, Kevin J. Glennon, Evans D. Kitcher, Jonathan D. Burns, Charles M. Folden, III, Sunil S. Chirayath   +5 more
doaj   +1 more source

Plutonium-Xenon systematics of Angrites [PDF]

, 2003
Introduction: Angrites are igneous meteorites that crystallized very early in the solar system, ~10 Ma after CAIs, as also implied by the presence of now extinct short-lived radionuclides such as 53Mn, 146Sm and 244Pu [1].
Busemann, H., Eugster, O.
core  

The valence-fluctuating ground state of plutonium [PDF]

Science Advances, 2015
Determination of plutonium’s fluctuating electronic and magnetic ground state resolves long-standing “missing” magnetism puzzle. A central issue in material science is to obtain understanding of the electronic correlations that control complex materials.
M. Janoschek, Pinaki Das, B. Chakrabarti, D. Abernathy, M. Lumsden, J. Lawrence, J. Thompson, G. Lander, J. Mitchell, S. Richmond, M. Ramos, F. Trouw, Jian-Xin Zhu, K. Haule, G. Kotliar, E. Bauer   +15 more
semanticscholar   +1 more source

NKCC1: A key regulator of glioblastoma progression

Molecular Oncology, EarlyView.
Glioblastoma (GBM) progression is driven by disrupted chloride cotransporter homeostasis. NKCC1 is highly expressed in stem‐like, astrocytic, and progenitor cells, correlating with earlier recurrence, while overall survival remains unaffected. NKCC1 serves as a prognostic marker and potential therapeutic target, linking chloride transporter imbalance ...
Anja Thomsen, Diana Freitag, Madlen Haase, Christian Senft, Falko Schwarz, Silke Keiner   +5 more
wiley   +1 more source