CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «PHOTOCATHODE»
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photocathode în următoarea selecție bibliografică. Cărți în legătură cu
photocathode și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
ADVANCES ELECTRONC &ELECTRON PHYSICS
Could this be taking place here also? D. G. THEODOROU: The photocathode
sensitivity remains stable as long as current is not drawn from it. We have
investigated this effect with the photocathode illuminated and with no high
voltage applied ...
2
Nuclear Medicine Radiation Dosimetry: Advanced Theoretical ...
Photocathode Voltage Divider (Na2KSb or K2CsSb) Electron Trap (a)
IONISATION (b) PROMPT RECOMBINATION Conduction Band
Thermoluminescent. 9.3.3.3 Light Collection The fluorescence emitted by the
scintillator must be transferred ...
3
Astronomical Photometry: A Guide
Whereas an ideal photocathode would release one photoelectron for every
impinging photon (the quantum efficiency would then be 100%), in practice there
are large losses in absorption of the incident photons, hence, existing
photocathodes ...
C. Sterken, J. Manfroid,
1992
4
ADV ELECTRONC/ELECTRON PHYSICS V28A APL
the 8-25 type of photocathode'1 because of its superior performance in the near
infra-red region of the spectrum. The $25 photocathode is a derivative of the 820
type using the same basic chemical constituents; it difl'ers only in the processing
...
5
Christensen's Physics of Diagnostic Radiology
The photocathode is a photoemissive metal (commonly a combination of
antimony and cesium compounds). When light from the fluorescent screen strikes
the photocathode, photoelectrons are emitted in numbers proportional to the ...
Thomas S. Curry, James E. Dowdey, Robert C. Murry,
1990
6
Principles of Naval Weapon Systems
Usually placed in a vacuum tube with high voltage, a photocathode absorbs the
photon, and the energy absorbed is enough (higher than the electron work
function) to release the electron in the vacuum chamber. The voltage potential
moves it ...
7
Reference Data for Engineers: Radio, Electronics, Computer, ...
PHOTOCATHODE Fig. 22. Photodiode circuit. T = d(2mlqV)m = (3.37 x l(T6)d/(V)"
2 seconds where, T = transit time of the charge from cathode to anode (seconds),
V = cathode-to-anode potential (volts), C = total capacitance including external ...
Wendy Middleton, Mac E. Van Valkenburg,
2002
8
Principles of Fluorescence Spectroscopy
A PMT vacuum tube consists of a photocathode and a series of dynodes which
are the amplification stages (Figure Figure 2.29. Schematic diagram of a
photomultiplier tube and its dyn- ode chain. 2.29). The photocathode is a thin film
of metal ...
9
Handbook of Optoelectronics (Two-Volume Set)
When photons strike a photocathode, electrons in the valence band absorb
photon energy hv,become excited into the conduction bandand diffuse toward
the photocathode surface. When the diffused electrons have enough energy to ...
John P. Dakin, Robert G. W. Brown,
2010
10
Photonics and Lasers: An Introduction
A negative high voltage (usually ~ 1 kV) is applied to the photocathode, and the
proper potential for each dynode is maintained by a chain of equal—value
resistors. The anode is approximately at ground potential, and attracts the large
bunch ...
ȘTIRI NOI CARE INCLUD TERMENUL «PHOTOCATHODE»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
photocathode în contextul următoarelor știri.
US Army awards Apache night vision camera production contract to …
EBAPS technology is based on a photocathode derived from a Generation-III image intensifier in proximity-focus with a high-resolution, ... «Army Technology, Iul 15»
WITS$ — A Rough Guide to Selecting a Photodetector
A PMT is a vacuum tube with a light-sensitive photocathode, a sequence of dynodes providing an internal electrical gain and a signal-collecting anode. A PMT is ... «Photonics.com, Iul 15»
Penny Stock in Focus is HyperSolar Inc (OTCMKTS:HYSR)
... has published numerous papers on the subject, including “Solar-driven microbial photoelectrochemical cells with a nanowire photocathode”, ... «MicroCap Daily, Iul 15»
Artificial photosynthesis: New, stable photocathode with great potential
A scanning electron microscopy shows a cross section of the composite photocathode (left). By TEM analysis, nanoparticles of Pt could be ... «Phys.Org, Mai 15»
Public Release: 12-May-2015 Artificial photosynthesis: New, stable …
IMAGE: A scanning electron microscopy shows a cross section of the composite photocathode (left). By TEM analysis, nanoparticles of Pt could ... «EurekAlert, Mai 15»
Advances in InGaAs/InP single-photon detector systems for quantum …
A primary electron is produced in the photocathode material as a consequence of the photoelectric effect, and high gain results from a ... «Nature.com, Mai 15»
Artificial Photosynthesis Device Paves Way Toward Sustainable …
The photocathode has silicon nanowires with a high surface area that is effectively colonized by the bacteria. When the array chamber is filled ... «The Biological SCENE, Apr 15»
Watching photons on the fly
... the incident light first passes through a narrow entrance slit (usually 50μm wide) and is imaged onto the photocathode of a streak tube. Here ... «SPIE Newsroom, Apr 15»
One Step Closer to Artificial Leaves That Convert Water to Fuel
The photoanode uses sunlight to oxidize water molecules to generate oxygen gas, protons, and electrons, while the photocathode recombines ... «Environment News Service, Apr 15»
HyperSolar Appoints Dr. Yat Li as Scientific Advisor
... has published numerous papers on the subject, including "Solar-driven microbial photoelectrochemical cells with a nanowire photocathode", ... «Marketwired, Mar 15»