Deceleration ion optical system for sputtering measurements between 50 and 500 eV as function of angle of incidence

1987 ◽  
Vol 58 (10) ◽  
pp. 1830-1832 ◽  
Author(s):  
H. Liebl ◽  
J. Bohdansky ◽  
J. Roth ◽  
V. Dose
Keyword(s):  
Optical System ◽  
Angle Of Incidence ◽  
Ion Optical System

Update of ion-optical system of neutral beam of Tokamak à Configuration Variable

2020 ◽  
Vol 91 (1) ◽  
pp. 013323
Author(s):  
A. V. Sorokin ◽  
T. D. Akhmetov ◽  
A. V. Brul ◽  
V. I. Davydenko ◽  
A. A. Ivanov ◽  
...  
Keyword(s):  
Optical System ◽  
Neutral Beam ◽  
Ion Optical System

A simple optical system delivering a tunable micrometer pink beam that can compensate for heat-induced deformations

2015 ◽  
Vol 22 (4) ◽  
pp. 930-935 ◽  
Author(s):  
Ruben Reininger ◽  
Zunping Liu ◽  
Gilles Doumy ◽  
Linda Young
Keyword(s):  
Optical System ◽  
Heat Load ◽  
Optical Element ◽  
High Energy ◽  
Angle Of Incidence ◽  
Optical Elements ◽  
Source Distance ◽  
Energy Cutoff ◽  
Working Distance ◽  
Photon Source

The radiation from an undulator reflected from one or more optical elements (usually termed `pink-beam') is used in photon-hungry experiments. The optical elements serve as a high-energy cutoff and for focusing purposes. One of the issues with this configuration is maintaining the focal spot dimension as the energy of the undulator is varied, since this changes the heat load absorbed by the first optical element. Finite-element analyses of the power absorbed by a side water-cooled mirror exposed to the radiation emitted by an undulator at the Advanced Photon Source (APS) and at the APS after the proposed upgrade (APSU) reveals that the mirror deformation is very close to a convex cylinder creating a virtual source closer to the mirror than the undulator source. Here a simple optical system is described based on a Kirkpatrick–Baez pair which keeps the focus size to less than 2 µm (in the APSU case) with a working distance of 350 mm despite the heat-load-induced change in source distance. Detailed ray tracings at several photon energies for both the APS and APSU show that slightly decreasing the angle of incidence on the mirrors corrects the change in the `virtual' position of the source. The system delivers more than 70% of the first undulator harmonic with very low higher-orders contamination for energies between 5 and 10 keV.

Investigation of the ion-optical system of an ion thruster with a microwave plasma generator with a power of up to 10 W

2021 ◽  
Vol 189 ◽  
pp. 548-558
Author(s):  
Igor Vavilov ◽  
Konstantin Zharikov ◽  
Viktor Fedyanin ◽  
Pavel Yachmenev ◽  
Anton Lukyanchik ◽  
...  
Keyword(s):  
Optical System ◽  
Microwave Plasma ◽  
Plasma Generator ◽  
Ion Thruster ◽  
Ion Optical System

Ion-Optical System with Ballistic Focusing of a Powerful Deuterium Atom Beam Injector for Plasma Heating

2021 ◽  
Vol 84 (7) ◽  
pp. 1285-1290
Author(s):  
V. Kh. Amirov ◽  
A. I. Gorbovskiy ◽  
V. I. Davydenko ◽  
P. P. Deychuli ◽  
A. A. Ivanov ◽  
...  
Keyword(s):  
Optical System ◽  
Plasma Heating ◽  
Deuterium Atom ◽  
Atom Beam ◽  
Ion Optical System
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