Results 61 to 70 of about 1,265,495 (296)

Noninterceptive beam diagnostics [PDF]

AIP Conference Proceedings, 1986
The need for accurate real‐time diagnostics is critical for high‐power particle beams. This paper describes the present level of development of noninterceptive devices for these beams. Discussion will center on diagnostic measurements as they occur along the beamline, from ion‐source to the input into an RFQ, and on measurements of the RFQ output ...
openaire   +1 more source

BATMAN beam properties characterization by the beam emission spectroscopy diagnostic [PDF]

AIP Conference Proceedings, 2015
The ITER neutral beam systems are based on the production and acceleration of negative ions (H/D) up to 1 MV. The requirements for the beam properties are strict: a low core beam divergence (< 0.4 °) together with a low source pressure (< 0.3 Pa) would permit to reduce the ion losses along the beamline, keeping the stripping particle losses below 30 ...
Bonomo F., Ruf B., Barbisan M., Cristofaro S., Schiesko L., Fantz U., Franzen P., Pasqualotto R., Riedl R., Serianni G., Wuenderlich D., NNBI-Team   +11 more
openaire   +6 more sources

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Image-Based Laser-Beam Diagnostics Using Statistical Analysis and Machine Learning Regression

Photonics
This study is a comprehensive experimental and computational investigation into high-resolution laser beam diagnostics, combining classical statistical techniques, numerical image processing, and machine learning-based predictive modeling.
Tayyab Imran, Muddasir Naeem
doaj   +1 more source

Beam Instrumentation and Diagnostics

, 2020
The determination of beam parameters is essential for the operation and development of any accelerator facility. The working principle of frequently used beam instruments for electron and proton beams is discussed. The article comprises of the beam instrumentation for beam current determination, the usage of beam position monitors for bunched beams ...
openaire   +2 more sources

BEAM DIAGNOSTICS FOR THE ESS [PDF]

, 2020
The European Spallation Source (ESS) is a based on a 2.5GeV superconducting LINAC, producing a 5MW beam. Since it is optimized for cold neutrons, there is no accumulator ring, and hence no need for charge exchange injection.
L Tchelidze, Sweden Lund, A Jansson, Ess Ab   +3 more
core  

Increasing Lipid Nanoparticle mRNA Copy Number Improves Transfection Potency

Advanced Materials, EarlyView.
As lipid nanoparticle (LNP) systems are the leading platform for in vivo nucleic acid delivery, improving transfection potency of these systems is of considerable interest. In this work, we explored a post‐mixing formulation method involving a two‐step buffer exchange that increased the number of mRNA copies within each LNP while reducing the number of
Yao Zhang, Jerry Leung, Judy Cheng, Arash Momeni, Albert Kamanzi, Ariadne Tuckmantel Bido, Suiyang Liao, Emma Kang, Colton Strong, Christian J. Kastrup, Sabrina Leslie, Miffy Hok Yan Cheng, Pieter R. Cullis   +12 more
wiley   +1 more source

Ion beam analysis based on cellular nonlinear networks [PDF]

, 2011
The development of a non- destructive measurement method for ion beam parameters has been treated in various projects. Although results are promising, the high complexity of beam dynamics has made it impossible to implement a real time process control up
Ratzinger, Ulrich, R. Tetzlaff, Reichau, Hermine, H. Reichau, Senger, Vanessa, U. Ratzinger, Tetzlaff, Ronald, V. Senger   +7 more
core   +2 more sources

1T‐to‐2H Phase Evolution During Epitaxial Growth of Transition Metal Dichalcogenides

Advanced Materials, EarlyView.
During MOCVD growth of MoS2 and WSe2, a transient metallic 1T phase emerges in early, edge‐rich, chalcogen‐deficient domains and declines as the films ultimately coalesce as 2H material. Together, experiments and ReaxFF simulations link domain size, edge stoichiometry, and vacancies to this evolution.
Andrew R. Graves, Yiru Zhu, Matin Salimi Irdmusa, Nadire Nayir, Thomas V. Mc Knight, Chen Chen, Ke Wang, Adri C. T. van Duin, Joan M. Redwing   +8 more
wiley   +1 more source

A beam branching method for timing and spectral characterization of hard X-ray free-electron lasers

Structural Dynamics, 2016
We report a method for achieving advanced photon diagnostics of x-ray free-electron lasers (XFELs) under a quasi-noninvasive condition by using a beam-splitting scheme.
Tetsuo Katayama, Shigeki Owada, Tadashi Togashi, Kanade Ogawa, Petri Karvinen, Ismo Vartiainen, Anni Eronen, Christian David, Takahiro Sato, Kyo Nakajima, Yasumasa Joti, Hirokatsu Yumoto, Haruhiko Ohashi, Makina Yabashi   +13 more
doaj   +1 more source