CHE SIGNIFICA MAGNETIC LENS IN INGLESE
Lente magnetica
Una lente magnetica è un dispositivo per la messa a fuoco o la deflessione di particelle cariche in movimento, come gli elettroni o gli ioni, utilizzando la forza magnetica Lorentz. La sua forza può spesso essere variata con l'uso di elettromagneti. Le lenti magnetiche sono utilizzate in diverse applicazioni, provenienti da tubi a raggi catodici oltre la microscopia elettronica agli acceleratori delle particelle. Una lente magnetica è tipicamente composta da diversi elettromagneti disposti in un quadrupolo, in un set-up o in un formato superiore; Le bobine elettromagnetiche sono collocate ai vertici di un quadrato o di un altro poligono regolare. Da questa configurazione si può formare un campo magnetico personalizzato per manipolare il fascio di particelle. La particella passante è sottoposta a due forze vettoriali e. Provoca la particella a spirale attraverso l'obiettivo, e questa spirale espone l'elettrone a cui a sua volta mette a fuoco l'elettrone. Si noti che il campo magnetico è inomogeneo, le particelle vicine al centro sono meno deflessive di quelle che passa l'obiettivo lontano dall'asse.
definizione di magnetic lens nel dizionario inglese
La definizione di lente magnetica nel dizionario è un insieme di magneti, elettromagneti esp, utilizzati per mettere a fuoco o sfocare un fascio di particelle cariche in un microscopio elettronico, acceleratore di particelle o dispositivo simile.
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10 LIBRI IN INGLESE ASSOCIATI CON «MAGNETIC LENS»
Scopri l'uso di
magnetic lens nella seguente selezione bibliografica. Libri associati con
magnetic lens e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Physical Principles of Electron Microscopy: An Introduction ...
The thin-lens approximation also simplifies analysis of the effect of the magnetic
forces acting on a charged particle, leading to a simple expression for the
focusing power (reciprocal of focal length) of a magnetic lens: 1/f= [e2/(8mE0)]
Bz2 dz ...
2
Handbook of Microscopy for Nanotechnology
Magnetic lens As in the electric case, an axially symmetric magnetic field also
has lens characteristics and is called a magnetic lens. The paraxial ray equation
for a magnetic lens is written as: d2r dz2 = q mrB20 8V (5) whereB 0 is the ...
Nan Yao, Zhong Lin Wang,
2006
3
Reflection High-Energy Electron Diffraction
In this case we observe a disk at a certain position, the Magnetic lens Magnetic
deflector Anode Wehnelt electrode Cathode v ' / / ( W-hairpin-f i lament) 1 5 mm
Figure 3.2 A schematic illustration of a typical laboratory-constructed electron gun
.
Ayahiko Ichimiya, Philip I. Cohen,
2004
4
Light and Electron Microscopy
Beyond the field limits, the beam again travels in a straight line, but it has been
deflected from its original direction according to the strength and extent of the
magnetic field.6 6.8.2 Action of the magnetic lens As shown in the preceding
section, ...
Elizabeth M. Slayter, Henry S. Slayter,
1992
5
Scanning Electron Microscopy: Physics of Image Formation and ...
2.12 shows the combination of a conical magnetic lens and an electrostatic lens [
2.53-55]. The latter consists of an inner electrode at the acceleration potential
and an outer electrode at earth UoccO— . Magnetic lens Electrostatic lens ...
6
Istfa 2003: Proceedings of the 29Th International Symposium ...
Due to the design as a combination of a magnetic lens together with an
electrostatic immersion lens (Fig. 4), the aberration coefficients decrease with
decreasing electron energy (Fig. 4). This results in an ultrahigh resolution even at
very low ...
7
Intense Electron and Ion Beams
The matrix equation for the thick symmetrical magnetic lens coincides with the
one used for the thick symmetrical unipotential electrostatic lens. 3.10.3
Parameters of Some Magnetic Lenses Thin Coil The simplest magnetic lens is
created by ...
Sergey Ivanovich Molokovsky, A. D. Sushkov,
2005
8
Handbook of Charged Particle Optics, Second Edition
When V2 equals V3, the excitation of the magnetic lens becomes NI = 1174 AT.
An interesting thing is that, this value is nearly the same as the excitation of a
TEM/SEM lens at 20 kV. When the same objective lens shape is used in a TEM/
SEM ...
9
Towards an Unambiguous Electron
Magnetic Chiral Dichroism ...
On contrary, also the stray field of the commutated objective lens system might
degrade the imaging quality of the microscope as the focal length of a magnetic
lens is finally defined by the magnitude of the magnetic field. To clarify this
question ...
10
Introduction to Conventional Transmission Electron Microscopy
The main purpose of a round magnetic lens is to focus the electron beam towards
the optical axis. The basic principle behind such a lens is shown in Fig. 3.3(a): a
circular current running through a coil produces a magnetic field that is nearly ...
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «MAGNETIC LENS»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
magnetic lens nel contesto delle seguenti notizie.
How To Fix iPhone 6 Plus Blurry Camera Photos
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, lug 15»
How To Fix Common iPhone 6 Plus Problems [Part 13]
Sometimes, a metallic case or magnetic lens may interfere with the camera function, particularly with the optical image stabilization feature. «StudentNewsIE.com, giu 15»
ZTYLUS iPhone 6 Plus Case, Lens and Ring Light Review
A detachable magnetic lens comes off the wide-angle lens to transform it into a macro lens. The circular polarizer lens includes a dial. Spin it to ... «Gotta Be Mobile, mag 15»
How To Fix Common iPhone 6 Plus Problems [Part 11]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, mag 15»
How To Fix Common iPhone 6 Plus Problems [Part 10]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, apr 15»
Geek deals: Lytro 8GB light-field camera for $60
This also ships with a magnetic lens cap for travel, a wrist strap, and USB 2.0 cable for charging and transferring your pictures. And when you ... «Geek, apr 15»
How To Fix Common iPhone 6 Plus Problems [Part 9]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, apr 15»
How To Fix Common iPhone 6 Plus Problems [Part 8]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, mar 15»
How To Fix Common iPhone 6 Plus Problems [Part 7]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, mar 15»
How To Fix Common iPhone 6 Problems [Part 6]
With iPhone 6 Plus, a metallic case or magnetic lens could interfere with optical image stabilization. If you have a metallic case or magnetic lens ... «StudentNewsIE.com, feb 15»