Low Energy Ion Source

Name: Low Energy Ion Source
Brand: Südwestdeutscher Verlag für Hochschulschriften
SKU: 9783838105987
Price: 63.88 EUR
Availability: InStock

Development of a Low Energy Ion Source for ROSINA Ion Mode Calibration

Автор: Martin Rubin

Език:

Корици: С меки корици

Издател: Südwestdeutscher Verlag für Hochschulschriften

Наличност: Външен склад

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63.88 € 124.94 лв

This PhD thesis describes the design, construction,§and implementation of a Low Energy Ion Source (L...

Информация за книгата

Автор

Martin Rubin

Език

Немски език

Корици

Книга - С меки корици

Издадена

2009

страници

144

EAN

9783838105987

Enbook ID

07067116

Издател

Südwestdeutscher Verlag für Hochschulschriften

Теглоt

231

Размери

150 x 220 x 7

Пълно описание

This PhD thesis describes the design, construction,§and implementation of a Low Energy Ion Source (LEIS)§for the ion mode calibration of the two ROSINA mass§spectrometers on board ESA's Rosetta spacecraft to§comet 67P/Churyumov-Gerasimenko.§The low velocity of the ions in the vicinity of the§comet as well as the low relative speed between the§spacecraft and the comet leads to ion energies of§typically less than 20 eV. In combination with§spacecraft charging that occurs in such an§environment the detection of cometary ions makes for§a very challenging task to be performed by the two§mass spectrometers. For the preparation of these§measurements LEIS is used in our lab to calibrate§both instruments in ion mode.§We show the physics that are relevant for the§development of a new design for this type of ion§sources. As part of this thesis, a corresponding§source has been built and existing calibration§facilities have been upgraded. We discuss the§sensitivity, beam shape, and energy distribution and§corresponding computer simulations which demonstrate§that the Low Energy Ion Source meets the scientific§requirements for the Rosetta mission.

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Low Energy Ion Source

Development of a Low Energy Ion Source for ROSINA Ion Mode Calibration

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