SPECS PHOIBOS 100, Руководство пользователя

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Chapter
T
Table of Contents
1 Introduction 1
1.1 Overview .....................................................................................1
2 Components and
Connections 5
2.1 System Description, Package Contents .....................................5
2.2 Electrical Connections ................................................................6
3 Spectrometer 11
3.1 The Lens System ........................................................................12
3.2 Hemispherical Analyzer (HSA) .................................................18
3.3 Magnetic Shielding ...................................................................20
3.3.1 Magnetic Coupling for -Metal Chambers
μ
...........................................21
3.3.2 Trim Coil .................................................................................................21
3.4 Slit Orbit Mechanism ................................................................22
3.5 Single and Multichannel Detector (SCD) / (MCD) ...................25
3.5.1 Principles of Detection ..........................................................................25
3.5.2 Coherence of Epass and Step ................................................................26
3.5.3 Electron Multiplication ..........................................................................27
3.5.3.1 Extended CEM ..................................................................................29
3.5.3.2 Linearity of the CEM’s .....................................................................30
3.5.4 Conversion Energy .................................................................................32
3.5.5 Spectrometer Voltage U0 ......................................................................33
3.6 Work Function ..........................................................................34
4 Installation 37
4.1 Unpacking .................................................................................37
4.2 Mounting the Detector ............................................................37
4.3 Achieve the Maximum Lifetime of a Channel Electron Multi -
plier 39
PHOIBOS