X. Pang
... • 40 turns of windings are put on each tip of the quadrupole The center of the ferrite ring where the beam pipe is located is well protected from the biasing field due to the canceling of the field at the center • The outer conductor is make of copper stripes. The inner conductor is perforated. ...
... • 40 turns of windings are put on each tip of the quadrupole The center of the ferrite ring where the beam pipe is located is well protected from the biasing field due to the canceling of the field at the center • The outer conductor is make of copper stripes. The inner conductor is perforated. ...
ELECTRICITY AND MAGNETISM
... • WHEN ELECTRONS ARE MOVED FROM ONE OBJECT TO ANOTHER. • EXAMPLE 1: WHEN YOU WALK ACROSS A CARPET YOUR SHOES MAY RUB ELECTRONS OFF THE CARPET. THE ELECTRONS SPREAD OUT OVER YOUR SKIN. • EXAMPLE 2: IF YOU RUB A BALLOON AGAINST YOUR HAIR, ELECTRONS FROM YOUR HAIR WILL MOVE TO THE BALLOON. ...
... • WHEN ELECTRONS ARE MOVED FROM ONE OBJECT TO ANOTHER. • EXAMPLE 1: WHEN YOU WALK ACROSS A CARPET YOUR SHOES MAY RUB ELECTRONS OFF THE CARPET. THE ELECTRONS SPREAD OUT OVER YOUR SKIN. • EXAMPLE 2: IF YOU RUB A BALLOON AGAINST YOUR HAIR, ELECTRONS FROM YOUR HAIR WILL MOVE TO THE BALLOON. ...
Lecture 2: x ray Production (PPT
... Disk-shaped, rotating anode allows heat to be spread over a much larger surface without compromising apparent size of focal spot. ...
... Disk-shaped, rotating anode allows heat to be spread over a much larger surface without compromising apparent size of focal spot. ...
Wireless Charging of Mobile Phone Using Microwaves or
... proportional to transmitted frequency. Microwaves are used in spacecraft communication, and much of the world’s data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and communications satellites. Microwaves are also employed in microwave ovens a ...
... proportional to transmitted frequency. Microwaves are used in spacecraft communication, and much of the world’s data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and communications satellites. Microwaves are also employed in microwave ovens a ...
14 Microwaves
... The reflex klystron has a single cavity that acts as both buncher and catcher. The beam is passed by the cavity, bunched, repelled and passed by the cavity a second time, and the absorbed in the sidewalls. It is necessary to turn on the repeller voltage prior to turning on the anode supply, otherwis ...
... The reflex klystron has a single cavity that acts as both buncher and catcher. The beam is passed by the cavity, bunched, repelled and passed by the cavity a second time, and the absorbed in the sidewalls. It is necessary to turn on the repeller voltage prior to turning on the anode supply, otherwis ...
phy Sci electricity
... between the anode and the cathode. You can think of this difference as an unstable build-up of the electrons. The electrons wants to rearrange themselves to get rid of this difference. But they do this in a certain way. Electrons repel each other and try to go to a place with fewer electrons. ...
... between the anode and the cathode. You can think of this difference as an unstable build-up of the electrons. The electrons wants to rearrange themselves to get rid of this difference. But they do this in a certain way. Electrons repel each other and try to go to a place with fewer electrons. ...
e/m Experiment - sestechno.com
... Our arrangement for measuring e/m, the charge to mass ratio of the electron is a very simple set-up. It is based on Thomson’s method. The e/m-tube is bulb-like and contains a filament, a cathode, a grid, a pair of deflection plates and an anode. The tube is filled with helium at a very low pressure. ...
... Our arrangement for measuring e/m, the charge to mass ratio of the electron is a very simple set-up. It is based on Thomson’s method. The e/m-tube is bulb-like and contains a filament, a cathode, a grid, a pair of deflection plates and an anode. The tube is filled with helium at a very low pressure. ...
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.