Microstrip resonators for electron paramagnetic resonance
... fair agreement with the simulated value 8.27 GHz. The quality factor of the cavity was measured to be Q0 = 60, which is close to the calculated value. The field distribution on the MR surface was evaluated by means of a cavity perturbation technique.23 Perturbing a resonator in a region dominated by ...
... fair agreement with the simulated value 8.27 GHz. The quality factor of the cavity was measured to be Q0 = 60, which is close to the calculated value. The field distribution on the MR surface was evaluated by means of a cavity perturbation technique.23 Perturbing a resonator in a region dominated by ...
Model for a Josephson junction array coupled to a resonant... J. Kent Harbaugh and D. Stroud
... phase locking and coherent emission by an underdamped Josephson junction array in a resonant cavity. We also calculate the threshold for the onset of phase coherence, using a form of mean-field theory. Our model derives from more conventional models of Josephson junction arrays, but treats the inter ...
... phase locking and coherent emission by an underdamped Josephson junction array in a resonant cavity. We also calculate the threshold for the onset of phase coherence, using a form of mean-field theory. Our model derives from more conventional models of Josephson junction arrays, but treats the inter ...
Flow Control and Propulsion in Poor Conductors
... in 1961. According to Friauf [10] and Way [11] the idea had attracted the attention of several inventors at that time. Main reasons for this attraction has been the seemingly elegant operating principle using no moving parts. Proposed applications include the silent propulsion of naval submarines [1 ...
... in 1961. According to Friauf [10] and Way [11] the idea had attracted the attention of several inventors at that time. Main reasons for this attraction has been the seemingly elegant operating principle using no moving parts. Proposed applications include the silent propulsion of naval submarines [1 ...
Dissert_ESG3 - DRUM - University of Maryland
... [2,3]. Thus, there is an urgent need for experimental verification of predictions of these candidate theories, as well as the search for other phenomena not yet predicted. The indispensable tool for probing the depths of the subatomic world is the particle accelerator. These are large machines that ...
... [2,3]. Thus, there is an urgent need for experimental verification of predictions of these candidate theories, as well as the search for other phenomena not yet predicted. The indispensable tool for probing the depths of the subatomic world is the particle accelerator. These are large machines that ...
Rate of energy absorption for a driven chaotic cavity
... LRT is a valid formulation. The quantum adiabatic regime (extremely small ), and the non-perturbative regime (see discussion in [13]) are excluded from our considerations. Thus the only remaining question is whether a classical calculation of C̃E (ω) is a good approximation quantum mechanically. Th ...
... LRT is a valid formulation. The quantum adiabatic regime (extremely small ), and the non-perturbative regime (see discussion in [13]) are excluded from our considerations. Thus the only remaining question is whether a classical calculation of C̃E (ω) is a good approximation quantum mechanically. Th ...
swirl acceleration in a quasi-steady mpd thruster by applied
... current, as shown in Fig.7 in 3kA. In a light gas species such as hydrogen, the spiral motion of the discharged plasma is intensified remarkably and extends toward the downstream with an increase in arc current. Angular frequency of plasma rotation at the throat section of the anode divergent nozzle ...
... current, as shown in Fig.7 in 3kA. In a light gas species such as hydrogen, the spiral motion of the discharged plasma is intensified remarkably and extends toward the downstream with an increase in arc current. Angular frequency of plasma rotation at the throat section of the anode divergent nozzle ...
Workshop, Previous Day 4 ITG International Vacuum Electronics Workshop 2014
... This was enabled by a special electron beam source recently developed and delivered by Organic Spintronics srl. Its function principle relies on a channel-spark discharge. The source generates a shortpulsed, polyenergetic electron beam with a very high power density ≥( 108 W/cm² over some nanosecond ...
... This was enabled by a special electron beam source recently developed and delivered by Organic Spintronics srl. Its function principle relies on a channel-spark discharge. The source generates a shortpulsed, polyenergetic electron beam with a very high power density ≥( 108 W/cm² over some nanosecond ...
Development and experimental characterization of a wall
... of a HT, while maintaining the mean diameter, has been proven in a previous study to reduce the power losses and increase the ionization and the thrust efficiency.20 This study, however, did not provide evidence of a positive impact on the thruster lifetime as no endurance testing was performed. Ano ...
... of a HT, while maintaining the mean diameter, has been proven in a previous study to reduce the power losses and increase the ionization and the thrust efficiency.20 This study, however, did not provide evidence of a positive impact on the thruster lifetime as no endurance testing was performed. Ano ...
PowerPoint 簡報
... guiding layers. The guiding layers have a refractive index lower than the active region but higher than the surrounding material. To match the typical fiber-core diameters (50-100 mm), the contact stripes for the edge emitter are 5070 mm wide. Lengths of the active regions usually range from 100 t ...
... guiding layers. The guiding layers have a refractive index lower than the active region but higher than the surrounding material. To match the typical fiber-core diameters (50-100 mm), the contact stripes for the edge emitter are 5070 mm wide. Lengths of the active regions usually range from 100 t ...
Accelerating Structures: Resonant Cavities
... relative phase between field and particle is 0 . For asymmetric field profiles the maximum accelerating voltage is obtained at values 0 , and it may be easily demonstrated that: L/2 ...
... relative phase between field and particle is 0 . For asymmetric field profiles the maximum accelerating voltage is obtained at values 0 , and it may be easily demonstrated that: L/2 ...
Seminar Report
... motion into three scientific laws. The laws explain how rockets work and why they are able to work in the vacuum of outer space.Newton's laws soon began to have a practical impact on the design of rockets.Rocket experimenters in Germany and Russia began working with rockets with a mass of more than ...
... motion into three scientific laws. The laws explain how rockets work and why they are able to work in the vacuum of outer space.Newton's laws soon began to have a practical impact on the design of rockets.Rocket experimenters in Germany and Russia began working with rockets with a mass of more than ...
EPR Resonators
... In order to enhance sensitivity, we use microwave resonators. These resonators are usually cavities. (Note: all cavities are resonators but not all resonators are cavities, for example, split ring and dielectric resonators.) A cavity is a metal box in which the microwaves can bounce around. A resona ...
... In order to enhance sensitivity, we use microwave resonators. These resonators are usually cavities. (Note: all cavities are resonators but not all resonators are cavities, for example, split ring and dielectric resonators.) A cavity is a metal box in which the microwaves can bounce around. A resona ...
Klystron beam-bunching lecture
... bunches, separated by essentially empty space. In the next section, we will learn how to quantify the terms "bunch*and "empty space." Finally, an output cavity is placed at the location of the maximum beam current modulation from the final idler cavity. This cavity is tuned such that the fields indu ...
... bunches, separated by essentially empty space. In the next section, we will learn how to quantify the terms "bunch*and "empty space." Finally, an output cavity is placed at the location of the maximum beam current modulation from the final idler cavity. This cavity is tuned such that the fields indu ...
Elementary scaling laws for sizing up and down Hall effect thrusters
... direction are negligible. Furthermore, they considered a fixed discharge voltage. In order to obtain similar performances for two different thruster configurations, authors showed that the ratio of rL , λ and L to h must stay the same for the two configurations. Using these criteria and a set of ass ...
... direction are negligible. Furthermore, they considered a fixed discharge voltage. In order to obtain similar performances for two different thruster configurations, authors showed that the ratio of rL , λ and L to h must stay the same for the two configurations. Using these criteria and a set of ass ...
7th lecture Measurement of E and D in insulators. Magnetostatics
... piece of iron. Then attractive forces appear between the opposite polarization charges and the small iron piece sticks to one of the poles and stays there forever if we do not separate them. This is a very important difference compared to electrostatics. All other ferromagnetic materials behave simi ...
... piece of iron. Then attractive forces appear between the opposite polarization charges and the small iron piece sticks to one of the poles and stays there forever if we do not separate them. This is a very important difference compared to electrostatics. All other ferromagnetic materials behave simi ...
Cavity ring-down optical spectrometer for absorption measurements
... We have developed a technique which allows optical absorption measurements to be made using a pulsed light source and offers a sensitivity significantly greater than that attained using stabilized continuous light sources. The technique is based upon the measurement of the rate of absorption rather ...
... We have developed a technique which allows optical absorption measurements to be made using a pulsed light source and offers a sensitivity significantly greater than that attained using stabilized continuous light sources. The technique is based upon the measurement of the rate of absorption rather ...
Active Materials Embedded in Photonic Crystals and Coupled to Electromagnetic Radiation
... can be done in either order兲. The cycle is repeated for each time step until all electric, magnetic, and polarization fields have decayed to negligible magnitudes. In this work, stimulated emission at frequency 1 is desired, which requires a population inversion between the two intermediate levels ...
... can be done in either order兲. The cycle is repeated for each time step until all electric, magnetic, and polarization fields have decayed to negligible magnitudes. In this work, stimulated emission at frequency 1 is desired, which requires a population inversion between the two intermediate levels ...
High frequency oscillation in photonic crystal nanolasers
... widened to cover the entire lasing mode. Moreover, the equidistant peaks are still observed at 77 K, only for longer pulses as shown in Fig. 3, which confirms that the sideband features do not result from sample heating, but from saturable absorption. This effect is not observed in quantum dot PC la ...
... widened to cover the entire lasing mode. Moreover, the equidistant peaks are still observed at 77 K, only for longer pulses as shown in Fig. 3, which confirms that the sideband features do not result from sample heating, but from saturable absorption. This effect is not observed in quantum dot PC la ...