Results 61 to 70 of about 252,539 (320)

Study on W-band sheet-beam traveling-wave tube based on flat-roofed sine waveguide

AIP Advances, 2018
A W-band sheet electron beam (SEB) traveling-wave tube (TWT) based on flat-roofed sine waveguide slow-wave structure (FRSWG-SWS) is proposed. The sine wave of the metal grating is replaced by a flat-roofed sine wave around the electron beam tunnel.
Shuanzhu Fang, Jin Xu, Xuebing Jiang, Xia Lei, Gangxiong Wu, Qian Li, Chong Ding, Xiang Yu, Wenxiang Wang, Yubin Gong, Yanyu Wei   +10 more
doaj   +1 more source

Random access quantum information processors

, 2017
Qubit connectivity is an important property of a quantum processor, with an ideal processor having random access -- the ability of arbitrary qubit pairs to interact directly.
Chakram, S., Earnest, N., Groszkowski, P., Koch, Jens, Leung, N., Lu, Y., McKay, D. C., Naik, R. K., Schuster, D. I.   +8 more
core   +3 more sources

Diamond semiconductor technology for RF device applications [PDF]

, 2005
This paper presents a comprehensive review of diamond electronics from the RF perspective. Our aim was to find and present the potential, limitations and current status of diamond semiconductor devices as well as to investigate its suitability for RF ...
Davidson, Jimmy L., Esame, İbrahim Onur, Gürbüz, Yaşar, Kang, Weng Poo, Tekin, İbrahim   +4 more
core   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

System for the measurement of ultra-low stray light levels [PDF]

, 1978
An apparatus is described for measuring the effectiveness of stray light suppression light shields and baffle arrangements used in optical space experiments and large space telescopes.
Brealt, R. P., Fannin, B. B., Griner, D. B., Hawkins, C. A., Hunt, G. H., Hurd, W. A., Shelton, G. B., Wyman, C. L.   +7 more
core   +1 more source

Low Background Materials and Fabrication Techniques for Cables and Connectors in the Majorana Demonstrator

, 2017
The MAJORANA Collaboration is searching for the neutrinoless double-beta decay of the nucleus Ge-76. The MAJORANA DEMONSTRATOR is an array of germanium detectors deployed with the aim of implementing background reduction techniques suitable for a tonne ...
Abgrall, N., Alvis, S. I., Arnquist, I. J., Avignone III, F. T., Barabash, A. S., Barton, C. J., Bertrand, F. E., Bode, T., Bradley, A. W., Brudanin, V., Busch, M., Buuck, M., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Cuesta, C., Detwiler, J. A., Dunagan, C., Efremenko, Yu., Ejiri, H., Elliott, S. R., Gilliss, T., Giovanetti, G. K., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Haufe, C. R., Hehn, L., Henning, R., Hoppe, E. W., Howe, M. A., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., Lopez, A. M., Martin, R. D., Massarczyk, R., Meijer, S. J., Mertens, S., Myslik, J., O'Shaughnessy, C., Othman, G., Poon, A. W. P., Radford, D. C., Rager, J., Reine, A. L., Rielage, K., Robertson, R. G. H., Rouf, N. W., Shanks, B., Shirchenko, M., Suriano, A. M., Tedeschi, D., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, B. R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yu, C. -H., Yumatov, V., Zhitnikov, I., Zhu, B. X.   +69 more
core   +1 more source

Study of molecular spin-crossover complex Fe(phen)2(NCS)2 thin films [PDF]

, 2009
We report on the growth by evaporation under high vacuum of high-quality thin films of Fe(phen)2(NCS)2 (phen=1,10-phenanthroline) that maintain the expected electronic structure down to a thickness of 10 nm and that exhibit a temperature-driven spin ...
C. Becker, D. J. Kim, D. Ruch, E. Beaurepaire, G. Rogez, G. Schmerber, H. Aubriet, J. Arabski, J. Petersen, J.-B. Beaufrand, Lampert M. A., M. Bowen, N. T. Kemp, N. Viart, S. Boukari, S. Shi   +15 more
core   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Pump-induced stimulated superradiant Smith-Purcell radiation with ultra-narrow linewidth

eLight
Lasers with the gain medium of gas, liquid, semiconductor, and solid could generate coherent light with rather narrow spectral linewidth, which play an important role in the fields of communication, measurement, sensing, and so on. Although free electron
Yuechai Lin, Jinyu Li, Fang Liu, Weisi Meng, Pan Pan, Hanqi Feng, Wei Zhang, Xue Feng, Kaiyu Cui, Jinjun Feng, Yidong Huang   +10 more
doaj   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann, Andre Danzig, Freerk Syassen, Rainer Fechte‐Heinen, Anastasiya Toenjes   +4 more
wiley   +1 more source