Feng_T_T_2017
... The main problem for downhole electronics is the temperature limitation, being that the pressures are handled mechanically. Despite wells being classified beyond 210 °C the current drilling temperatures do not exceed 200 °C [1]- [2]. This is due to that face that the current electronics, which made ...
... The main problem for downhole electronics is the temperature limitation, being that the pressures are handled mechanically. Despite wells being classified beyond 210 °C the current drilling temperatures do not exceed 200 °C [1]- [2]. This is due to that face that the current electronics, which made ...
IC64-16 - Pyramid Technical Consultants
... beams, nominally proton beams in the energy range 30 to 350 MeV. The beams pass through the chamber with minimal scattering and energy loss. The IC64-16 will typically form a part of a complete beam dosimetry suite in a particle accelerator system, a specific example being the treatment room nozzle ...
... beams, nominally proton beams in the energy range 30 to 350 MeV. The beams pass through the chamber with minimal scattering and energy loss. The IC64-16 will typically form a part of a complete beam dosimetry suite in a particle accelerator system, a specific example being the treatment room nozzle ...
1. Introduction - About the journal
... [34]. In this work, all passive elements are grounded and the range of current gain (B) for control of oscillation frequency is not limited from principle of design (equation for oscillation frequency). Constrains are given by a limited range of adjustable current gain and by real properties of the ...
... [34]. In this work, all passive elements are grounded and the range of current gain (B) for control of oscillation frequency is not limited from principle of design (equation for oscillation frequency). Constrains are given by a limited range of adjustable current gain and by real properties of the ...
Beam Diagnostics and Vacuum Systems
... Different types of specific beam diagnostics must be installed and used to bring the accelerator and the beam transport lines into an operational condition. A first type of measurements is needed during the commissioning period: • to help to reach the nominal performances of the accelerator • to con ...
... Different types of specific beam diagnostics must be installed and used to bring the accelerator and the beam transport lines into an operational condition. A first type of measurements is needed during the commissioning period: • to help to reach the nominal performances of the accelerator • to con ...
Electron-phonon relaxation time in ultrathin tungsten silicon film
... geometry of a hotspot and the inefficiency of diffusion. Here we use a method, which allows measurements of τe-ph in various ultrathin films based on amplitude-modulated absorption of sub-THz radiation (AMAR) introduced by Gershenson et al. [1315]. Its physical background and conditions of applicabi ...
... geometry of a hotspot and the inefficiency of diffusion. Here we use a method, which allows measurements of τe-ph in various ultrathin films based on amplitude-modulated absorption of sub-THz radiation (AMAR) introduced by Gershenson et al. [1315]. Its physical background and conditions of applicabi ...
4.2.3 – Resonant Filters
... both inductors and capacitors. Inductors also have a small resistance from the wire used to make the coil. The formula will always give a value of resonant frequency slightly higher than the actual value as the formula assumes that rL is negligible. In practice rL effectively lowers the resonant fre ...
... both inductors and capacitors. Inductors also have a small resistance from the wire used to make the coil. The formula will always give a value of resonant frequency slightly higher than the actual value as the formula assumes that rL is negligible. In practice rL effectively lowers the resonant fre ...
Analog Electronics Citcuit Lab manual for B. tech 5th sem.
... 5. Find the maximum voltage output by varying the frequency of input signal. 6. Record the voltage output in observation table by decreasing the frequency in small steps, below the frequency at which maximum voltage is obtained. Take the reading till voltage output is readable on the CRO. 7. In the ...
... 5. Find the maximum voltage output by varying the frequency of input signal. 6. Record the voltage output in observation table by decreasing the frequency in small steps, below the frequency at which maximum voltage is obtained. Take the reading till voltage output is readable on the CRO. 7. In the ...
LT5518 - 1.5GHz - 2.4GHz High Linearity Direct
... GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, W-CDMA and other systems. It may also be configured as an image reject up-converting mixer, by applying 90° phase-shifted signals to the I and Q inputs. The high impedance I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balan ...
... GSM, EDGE, TD-SCDMA, CDMA, CDMA2000, W-CDMA and other systems. It may also be configured as an image reject up-converting mixer, by applying 90° phase-shifted signals to the I and Q inputs. The high impedance I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balan ...
Fundamentals of Physics 7th Edition: Test Blanks
... A. there is less heating in the transmission wires B. the resistance of the wires is less at high voltages C. more current is transmitted at high voltages D. the insulation is more effective at high voltages E. the iR drop along the wires is greater at high voltage ans: A 46. Suppose the electric com ...
... A. there is less heating in the transmission wires B. the resistance of the wires is less at high voltages C. more current is transmitted at high voltages D. the insulation is more effective at high voltages E. the iR drop along the wires is greater at high voltage ans: A 46. Suppose the electric com ...
T000127-04 COC DRD - LIGO dcc
... stated to provide a full description of the COC and their optical and physical properties. As of this draft, COC will limit interferometer performance at the detector’s most sensitive range due to thermal noise in the coatings. Models indicate that COC will also limit detector sensitivity at high fr ...
... stated to provide a full description of the COC and their optical and physical properties. As of this draft, COC will limit interferometer performance at the detector’s most sensitive range due to thermal noise in the coatings. Models indicate that COC will also limit detector sensitivity at high fr ...
ICS525-01/02 - Integrated Device Technology
... user can configure the device to produce nearly any output frequency from any input frequency by grounding or floating the select pins. Neither microcontroller, software, nor device programmer are needed to set the frequency. Using Phase-Locked Loop (PLL) techniques, the device accepts a standard fu ...
... user can configure the device to produce nearly any output frequency from any input frequency by grounding or floating the select pins. Neither microcontroller, software, nor device programmer are needed to set the frequency. Using Phase-Locked Loop (PLL) techniques, the device accepts a standard fu ...
DAB One-chip Front End U2731B
... be selected by means of the two-wire bus bits I50 and I100. By use of this option, changes of the loop characteristics due to the variation of the VCO gain as a function of the tuning voltage can be reduced. The charge-pump current can be switched off using the two-wire bus bit TRI. A change in the ...
... be selected by means of the two-wire bus bits I50 and I100. By use of this option, changes of the loop characteristics due to the variation of the VCO gain as a function of the tuning voltage can be reduced. The charge-pump current can be switched off using the two-wire bus bit TRI. A change in the ...
Klystron
A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.In the klystron, an electron beam interacts with the radio waves as it passes through resonant cavities, metal boxes along the length of the tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at the other end of the tube. The output signal can be coupled back into the input cavity to make an electronic oscillator to generate radio waves. The gain of klystrons can be high, 60 dB (one million) or more, with output power up to tens of megawatts, but the bandwidth is narrow, usually a few percent although it can be up to 10% in some devices.A reflex klystron is an obsolete type in which the electron beam was reflected back along its path by a high potential electrode, used as an oscillator.The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the suffix -τρον (""tron"") meaning the place where the action happens. The name ""klystron"" was suggested by Hermann Fränkel, a professor in the classics department at Stanford University when the klystron was under development.