paper - Indico
... Figure 2: Measured axial magnetic field using two permanent magnet rings separated by distance of 140 mm. The calculated ECR surface at the operational frequency of 2.45 GHz using TRAPCAD [5] is shown in figure 3.Standard 900 bend, WR340 waveguides have been used for microwave coupling between the 2 ...
... Figure 2: Measured axial magnetic field using two permanent magnet rings separated by distance of 140 mm. The calculated ECR surface at the operational frequency of 2.45 GHz using TRAPCAD [5] is shown in figure 3.Standard 900 bend, WR340 waveguides have been used for microwave coupling between the 2 ...
5 - UTRGV Faculty Web
... is done. Measure Power by dividing work (joules) performed by time. (P=W/t). • One joule per second is a Watt. • Power also is measured as horsepower which is 756 Watt. ...
... is done. Measure Power by dividing work (joules) performed by time. (P=W/t). • One joule per second is a Watt. • Power also is measured as horsepower which is 756 Watt. ...
5 - UTRGV Faculty Web
... is done. Measure Power by dividing work (joules) performed by time. (P=W/t). • One joule per second is a Watt. • Power also is measured as horsepower which is 756 Watt. ...
... is done. Measure Power by dividing work (joules) performed by time. (P=W/t). • One joule per second is a Watt. • Power also is measured as horsepower which is 756 Watt. ...
150LECTURE15 DIODES Lecture Notes Page
... USED, THIS PROCESS IS CALLED DOPING. BORON HAS 3 ELECTRONS IN ITS OUTER SHELL WHEN ADDED TO SILICON THIS LEADS TO A DEFICIENCY OF 1 VALENCE ELECTRON (CALLED A HOLE) THIS GIVES THE SILICON A OVERALL POSITIVE CHARGE. THIS IS CALLED P TYPE SILICON. THESE HOLES CAN MOVE THRU THE CRYSTAL AND CARRY CURREN ...
... USED, THIS PROCESS IS CALLED DOPING. BORON HAS 3 ELECTRONS IN ITS OUTER SHELL WHEN ADDED TO SILICON THIS LEADS TO A DEFICIENCY OF 1 VALENCE ELECTRON (CALLED A HOLE) THIS GIVES THE SILICON A OVERALL POSITIVE CHARGE. THIS IS CALLED P TYPE SILICON. THESE HOLES CAN MOVE THRU THE CRYSTAL AND CARRY CURREN ...
Slides - Indico
... • For CW cavities, the cavity temperature reaches steady state when the water cooling removes as much power as is deposited in the RF structure. (Limit is ~ 1 MW but 500 kW is safer) • This usually is required to be calculated in a Finite Element code to determine temperature rises. • Temperature ri ...
... • For CW cavities, the cavity temperature reaches steady state when the water cooling removes as much power as is deposited in the RF structure. (Limit is ~ 1 MW but 500 kW is safer) • This usually is required to be calculated in a Finite Element code to determine temperature rises. • Temperature ri ...
Electronic Conditioners
... electrons removed (doped with “holes” – the absence of electrons). A semiconductor material with extra electrons is called an n-type (n for negative because electrons have a negative charge) and a material with electrons removed is called a p-type (for positive). Transistors are created by either st ...
... electrons removed (doped with “holes” – the absence of electrons). A semiconductor material with extra electrons is called an n-type (n for negative because electrons have a negative charge) and a material with electrons removed is called a p-type (for positive). Transistors are created by either st ...
Photo Electric Transducers (cont`d)
... Photo Electric Transducers (cont’d):8.1.The Photomultiplier Tube Amplification of the original current by as much as 105 to 109 ...
... Photo Electric Transducers (cont’d):8.1.The Photomultiplier Tube Amplification of the original current by as much as 105 to 109 ...
Oscilloscope 2
... • Note: the striking electrons release secondary emission electrons. These electrons having low velocity are called by conductive coating known as aquadag on the inside of the glass tube. • The CRT must be supplied with several dc potentials to provide proper acceleration controls and focusing. The ...
... • Note: the striking electrons release secondary emission electrons. These electrons having low velocity are called by conductive coating known as aquadag on the inside of the glass tube. • The CRT must be supplied with several dc potentials to provide proper acceleration controls and focusing. The ...
Electrons in a cryogenic planar Penning trap and
... (IVC) of a dilution refrigerator, no additional vacuum chamber is installed. A sketch of the setup is shown in Fig. 1 a). The Penning trap itself consists of three concentric disk-electrodes, which are fabricated on standard FR-4 (epoxy) substrate, a 35 µm thick copper layer covered with a thin (0.5 ...
... (IVC) of a dilution refrigerator, no additional vacuum chamber is installed. A sketch of the setup is shown in Fig. 1 a). The Penning trap itself consists of three concentric disk-electrodes, which are fabricated on standard FR-4 (epoxy) substrate, a 35 µm thick copper layer covered with a thin (0.5 ...
tvr-c3 - KevinChant.com
... circuit connected to the earth socket. Some types of sweep oscillators provide ample output voltage to produce approximately full width deflection when fed directly into the horizontal plate and this avoids any phase shift troubles by employing the horizontal amplifier. Should the sweep oscillator v ...
... circuit connected to the earth socket. Some types of sweep oscillators provide ample output voltage to produce approximately full width deflection when fed directly into the horizontal plate and this avoids any phase shift troubles by employing the horizontal amplifier. Should the sweep oscillator v ...
X-ray tube with needle
... Design of the X-ray tube with needle-like anode Design of the NAXT tube developed in our Lab is shown in Fig. 1. Conceptually it is a two-stage device. Intensity of the electron beam and its space position is determined in the first stage, the second stage accelerates the beam to the required energy ...
... Design of the X-ray tube with needle-like anode Design of the NAXT tube developed in our Lab is shown in Fig. 1. Conceptually it is a two-stage device. Intensity of the electron beam and its space position is determined in the first stage, the second stage accelerates the beam to the required energy ...
Cavity magnetron
The cavity magnetron is a high-powered vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field while moving past a series of open metal cavities (cavity resonators). Bunches of electrons passing by the openings to the cavities excite radio wave oscillations in the cavity, much as a guitar's strings excite sound in its sound box. The frequency of the microwaves produced, the resonant frequency, is determined by the cavities' physical dimensions. Unlike other microwave tubes, such as the klystron and traveling-wave tube (TWT), the magnetron cannot function as an amplifier, increasing the power of an applied microwave signal, it serves solely as an oscillator, generating a microwave signal from direct current power supplied to the tube.The first form of magnetron tube, the split-anode magnetron, was invented by Albert Hull in 1920, but it wasn't capable of high frequencies and was little used. Similar devices were experimented with by many teams through the 1920s and 30s. On November 27, 1935, Hans Erich Hollmann applied for a patent for the first multiple cavities magnetron, which he received on July 12, 1938, but the more stable klystron was preferred for most German radars during World War II. The cavity magnetron tube was later improved by John Randall and Harry Boot in 1940 at the University of Birmingham, England. The high power of pulses from their device made centimeter-band radar practical for the Allies of World War II, with shorter wavelength radars allowing detection of smaller objects from smaller antennas. The compact cavity magnetron tube drastically reduced the size of radar sets so that they could be installed in anti-submarine aircraft and escort ships.In the post-war era the magnetron became less widely used in the radar role. This was because the magnetron's output changes from pulse to pulse, both in frequency and phase. This makes the signal unsuitable for pulse-to-pulse comparisons, which is widely used for detecting and removing ""clutter"" from the radar display. The magnetron remains in use in some radars, but has become much more common as a low-cost microwave source for microwave ovens. In this form, approximately one billion magnetrons are in use today.