A New Design for A Super-Conducting Cavity Input Coupler

2006 ◽  
Author(s):  
H. Matsumoto ◽  
S. Kazakov ◽  
K. Saito
Keyword(s):  
Input Coupler ◽  
Super Conducting

Advanced Non-Destructive Fault Isolation Techniques for PCB Substrates Using Magnetic Current Imaging and Terahertz Time Domain Reflectometry

2018 ◽  
Author(s):  
Daechul Choi ◽  
Yoonseong Kim ◽  
Jongyun Kim ◽  
Han Kim
Keyword(s):  
Time Domain ◽  
Quantum Interference ◽  
Flip Chip ◽  
Imaging System ◽  
Time Domain Reflectometry ◽  
Fault Isolation ◽  
Magnetic Current ◽  
Isolation Techniques ◽  
Super Conducting ◽  
Non Destructive

Abstract In this paper, we demonstrate cases for actual short and open failures in FCB (Flip Chip Bonding) substrates by using novel non-destructive techniques, known as SSM (Scanning Super-conducting Quantum Interference Device Microscopy) and Terahertz TDR (Time Domain Reflectometry) which is able to pinpoint failure locations. In addition, the defect location and accuracy is verified by a NIR (Near Infra-red) imaging system which is also one of the commonly used non-destructive failure analysis tools, and good agreement was made.

Super-Conducting Quantum Interference Device Technique: 3-D Localization of a Short within a Flip Chip Assembly

2001 ◽  
Author(s):  
Kendall Scott Wills ◽  
Omar Diaz de Leon ◽  
Kartik Ramanujachar ◽  
Charles P. Todd
Keyword(s):  
Form Factor ◽  
Failure Analysis ◽  
Time Domain ◽  
Quantum Interference ◽  
Flip Chip ◽  
Time Domain Reflectometry ◽  
Interfacial Region ◽  
Precise Localization ◽  
Super Conducting ◽  
Accuracy Of Measurement

Abstract In the current generations of devices the die and its package are closely integrated to achieve desired performance and form factor. As a result, localization of continuity failures to either the die or the package is a challenging step in failure analysis of such devices. Time Domain Reflectometry [1] (TDR) is used to localize continuity failures. However the accuracy of measurement with TDR is inadequate for effective localization of the failsite. Additionally, this technique does not provide direct 3-Dimenstional information about the location of the defect. Super-conducting Quantum Interference Device (SQUID) Microscope is useful in localizing shorts in packages [2]. SQUID microscope can localize defects to within 5um in the X and Y directions and 35um in the Z direction. This accuracy is valuable in precise localization of the failsite within the die, package or the interfacial region in flipchip assemblies.

scholarly journals Corrections to “Design and Measurement of a Broadband Compact TE11 Mode Input Coupler for an X-Band Gyrotron Traveling Wave Tube”

2020 ◽  
Vol 68 (11) ◽  
pp. 4641-4641
Author(s):  
Weijie Wang ◽  
Guo Liu ◽  
Wei Jiang ◽  
Youlei Pu ◽  
Jianxun Wang ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Input Coupler ◽  
X Band

scholarly journals Input coupler for the KEKB normal conducting cavity

2002 ◽  
Author(s):  
F. Naito ◽  
K. Akai ◽  
N. Akasaka ◽  
E. Ezura ◽  
T. Kageyama ◽  
...  
Keyword(s):  
Input Coupler

scholarly journals The Peter Day Series of Magnetic (Super)Conductors

2021 ◽  
Vol 7 (7) ◽  
pp. 93
Author(s):  
Samia Benmansour ◽  
Carlos J. Gómez-García
Keyword(s):  
Magnetic Properties ◽  
Electrical Properties ◽  
Metal Complexes ◽  
Long Range ◽  
Magnetic Ordering ◽  
Metallic Conductivity ◽  
Electrical And Magnetic Properties ◽  
Super Conducting ◽  
Paramagnetic Metals

Here, we review the different series of (super)conducting and magnetic radical salts prepared with organic donors of the tetrathiafulvalene (TTF) family and oxalato-based metal complexes (ox = oxalate = C2O42−). Although most of these radical salts have been prepared with the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF = ET), we also include all the salts prepared with other TTF-type donors such as tetrathiafulvalene (TTF), tetramethyl-tetrathiafulvalene (TM-TTF), bis(ethylenediseleno)tetrathiafulvalene (BEST), bis(ethylenedithio)tetraselenafulvalene (BETS) and 4,5bis((2S)-2-hydroxypropylthio)-4’,5’-(ethylenedithio)tetrathiafulvalene (DMPET). Most of the oxalate-based complexes are monomers of the type [MIII(C2O4)3]3−, [Ge(C2O4)3]2− or [Cu(C2O4)2]2−, but we also include the reported salts with [Fe2(C2O4)5]4− dimers, [MII(H2O)2[MIII(C2O4)3]2]4− trimers and homo- or heterometallic extended 2D layers such as [MIIMIII(C2O4)3]− and [MII2(C2O4)3]2−. We will present the different structural families and their magnetic properties (such as diamagnetism, paramagnetism, antiferromagnetism, ferromagnetism and even long-range magnetic ordering) that coexist with interesting electrical properties (such as semiconductivity, metallic conductivity and even superconductivity). We will focus on the electrical and magnetic properties of the so-called Day series formulated as β”-(BEDT-TTF)4[A+MIII(C2O4)3]·G, which represents the largest family of paramagnetic metals and superconductors reported to date, with more than fifty reported examples.

scholarly journals Gravity as a tool to improve the hydrologic mass budget in karstic areas

2021 ◽  
Author(s):  
Tommaso Pivetta ◽  
Carla Braitenberg ◽  
Franci Gabrovšek ◽  
Gerald Gabriel ◽  
Bruno Meurers
Keyword(s):  
Hydrodynamic Model ◽  
Water Mass ◽  
Water Storage ◽  
Drainage System ◽  
Mass Budget ◽  
Cave System ◽  
Super Conducting ◽  
Water Volumes ◽  
Large Water

Abstract. Monitoring the water movements in karstic areas is a fundamental but challenging task due to the complexity of the drainage system and the difficulty in deploying a network of observations. Gravimetry offers a valid complement to classical hydrologic measurements in order to characterize such systems in which the recharge process causes temporarily accumulation of large water volumes in the voids of the epi-phreatic system. We show an innovative integration of gravimetric and hydrologic observations that constrains a hydrodynamic model of the Škocjan cave system (Slovenia). We demonstrate how the inclusion of gravity observations improves water mass budget estimates for the Škocjan area based on hydrological observations only. Finally, the detectability of water storage variations in other karstic contexts is discussed with respect to the noise performances of spring and super-conducting gravimeters.

scholarly journals A Three Area Interconnected Power System Network Load Frequency Controller Simulator

2018 ◽  
pp. 295-304
Author(s):  
Ibrahim Olawale Muritala ◽  
M B Mu’azu ◽  
E A Adedokun
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Magnetic Energy ◽  
Model Predictive Controller ◽  
Control Error ◽  
Interconnected Power System ◽  
Area Control Error ◽  
Predictive Controller ◽  
Super Conducting ◽  
Magnetic Energy Storage

This paper presents a MATLAB simulator of a three area interconnected power system of Thermal-Gas-Hydro. Nonlinearities intrinsic in the interconnected power system of communication delay, Generation Rate Constraint and Generation Dead Band were measured. Bat Inspired Algorithm was exploited to select the favourable parameters of the Model Predictive Controller and the Super Conducting Magnetic Energy Storage. Model Predictive Controller was the subordinate controller employed to minimalize the Area Control Error, Super Conducting Magnetic Energy Storage was the energy buffer to balance the load demand and the power generated. Integral Time Absolute Error was the performance metrics employed to minimize the Area Control Error. Parametric dissimilarity was tested on the inter-connected power system to observe the efficacy of the controller. Step load perturbation of  was concurrently applied to the three-area inter-connected network,  was introduced to the thermal generating unit,  was introduced to the gas and hydro generating unit.  Value of the tie-line was introduced to examine its effect on the frequency deviation. The results performed better when compared with Model Predictive Controller joined with Super Conducting Magnetic Energy Storage against the Model Predictive Controller without Super Conducting Magnetic Energy Storage in relations to settling time, overshoot and undershoot.

scholarly journals Conceptual & Engineering Design of Plug-in Cryostat Cylinder for Super-Conducting Central Solenoid of SST-1

2017 ◽  
Vol 823 ◽  
pp. 012041
Author(s):  
Prabal Biswas ◽  
Prosenjit Santra ◽  
Kirit Vasava ◽  
Snehal Jayswal ◽  
Tejas Parekh ◽  
...  
Keyword(s):  
Engineering Design ◽  
Conceptual Engineering ◽  
Super Conducting
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