Narrow angle electron guns and cathode ray tubes:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
New York [u.a.]
Acad. Press
1968
|
| Schriftenreihe: | Advances in electronics and electron physics / Supplement
3 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XV, 224 S. graph. Darst. |
Internformat
MARC
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| 650 | 4 | |a Tubes à rayons cathodiques | |
| 650 | 4 | |a Cathode ray tubes | |
| 650 | 4 | |a Electron gun | |
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Datensatz im Suchindex
| _version_ | 1804123401878503424 |
|---|---|
| adam_text | Narrow Angle Electron Guns
and Cathode Ray Tubes
HILARY MOSS, D Sc , Ph D
ADVISORY ENGINEER
WESTINGHOUSE ELECTRIC CORPORATION
ELMIRA, NEW YORK
GMEL!N - S NS71TUT
fur a orgr n sc -s Chee uniRren-ei » e
• ter Mjx • P sn « e s ,3c af zur
loreiiingcerWsehi;en
Frank?uri/Main
— Bib11othek —
l-r
ACADEMICPRESSNewYorkandLondon
Contents
FOREWORD V
PREFACE vii
Chapter 1 j General Introduction
Objectives 1
Limitations of Treatment 2
Significance of Restriction Narrow Angle 4
List of Symbols in Main Text 6
I Definitions and Comments Thereon 8
Normalization Techniques 10
Concept of Similar Operating Points 11
Suggested Preliminary Reading 12
PART 1 / THE EXPERIMENTAL DATA
Chapter 2 / The Modulation Characteristic
Objectives 15
The Cutoff Voltage and Its Significance 16
The Total Cathode Current, Icl0, at Vg= 0 17
Determination of the Total Cathode Current Ic at Any
Value of Grid Bias 17
The /x and K Values 19
Effect of Grid Thickness 23
Accuracy of the Formulas 23
Applicability to Different Triode Constructions 24
The Tetrode Construction 25
Associated Literature 25
xi
Contents
Chapter 3 / The Angular Distribution of Current from the Triode
Apparatus 27
General Measurement Procedures 28
Typical Distribution Curves—Effects of Cathode to Grid
and Anode to Grid Spacing Changes 30
Effects of Grid Modulation 35
Concept of the Cathode Image 36
Application of Results to Normal Size Systems—Overall
Accuracy in Beam Current Assessment 38
Use of Results in Aperture Imaging Cathode Ray Devices 38
Associated Literature 39
Chapter 4 / The Current Distribution across the Cathode Face
General Problem 41
The Cathode Emissive Area 41
Density Distributions across the Cathode Face Obtained
by Scanning 43
The Split Cathode Experiment 44
Preliminary Check and Effect of the Inter-Cathode Gap 45
Influence of Triode Geometry on the Peak/Mean Ratios 47
Quasi-Peak Emission Density Found from the Split Cathode 48
Effect of the Modulation Characteristic Gamma on the
Peak/Mean Ratios of Emission Density 50
Reexamination of the Modulation Formulas 51
Discussion and Literature 51
Chapter 5 / Measurements on the Narrow Angle Crossover
by Aberrationless Imaging
Objectives 53
Experimental Arrangements 53
Preliminary Observations—Confirmation of Narrow Angle
Conditions 59
Effect of Focusing Voltage 61
Effect of Anode Voltage Changes—The V 1/2 Relationship 62
The Semi-Normalized Spot Size Data 64
Space Charge Correction at the Screen 68
The Normalized Image Density Data 68
Discussion 72
Neutralization of Space Charge at the Screen by Residual
Positive Ions 75
Literature 77
Contents xiii
PART 2 / THE THEORETICAL MODEL
Chapter 6 / The Fundamental Limits in Electron Beams
General Objectives 81
The Significant Common Feature of All Narrow Angle
Guns 82
Basic Analysis of the Convergent Electron Beam 83
Performance Limits—Mathematical Statement 86
Concept of the Cathode Loading Limit in Narrow Angle
Guns 89
Literature Survey 92
Chapter 7 / Deflection of Electron Beams
Introduction 97
Electrostatic Deflection—General 98
Nonparallel Plates 99
i Plate Synthesis 102
Beam Track Calculations in a Tapered Plate Section 108
Sensitivity Calculations for a Circular Plate 110
Defocusing in Electrostatic Deflectors 111
Defocusing in Magnetic Deflection 113
Comparison of Defocusing in Rival Systems—Effects on
i General Design 116
Literature Survey 117
Chapter 8 / Conformal Geometric Transformations in
Cathode Ray Tube Design
! General Introduction 119
The Overall Logical Progression 120
Stage 1—Constancy of Scan Angle 122
Stage 2—Transformation Paths 123
Stage 3—The Enforced V, I, pc Connections 126
Stage 4—Physical Readability 127
Extension of Results to Electron Guns of Any Form 133
Extension of Analysis to Systems with Aberrations 134
Concept of the Mono-Directional Transformation 136
General Conclusions on the Practical Validity of Conformal
Transformations 137
Relationship between Transformations at Fixed and Vari
able Spot Sizes 138
Continuity and Transformation Severity 138
Literature 141
m
xiv Contents
PART 3 / APPLICATIONS
Chapter 9 / Feasibility Assessments
Objectives 145
Outline of Technique 145
Determination of the Maximum Value of 6 146
Determination of Beam Limit Performance—The Limit
Diagram 146
Superimposition of Langmuir Lines 151
Cathode Loading Limits—Scale of Difficulty Line 152
Literature 153
Chapter 10 / The Concept of Improvement in Cathode Ray
Tube Design
Introduction 155
Consequences of the Narrow Angle Restriction 155
Classification of Types of Improvement 156
Literature and Discussion 165
Chapter 11 / Typical Problems
Problem 1—A Gun for Use in a Demountable Tube for
Phosphor Irradiation 167
Problem 2—Preliminary Investigation of Large Screen
Direct Viewing Cathode Ray Tubes for High Resolution
Radar Systems—a Hundred Million Picture Point Tube 170
Problem 3—Investigation of a Very High Resolution Tube
of 5-in Screen Diameter 173
Problem 4—Derivation of a Projection Tube from a Direct
Viewing Prototype 175
Problem 5—Design of the Prototype Magnetically De
flected Electrostatically Focused High Resolution Tube 181
General Conclusions 188
Literature 188
Appendix 1 / Scaling of Electron Beam Devices 191
Scaling Theory with Zero Initial Velocities 191
Scaling with Initial Emission Velocities 195
Literature 199
Contents xv
Appendix 2 / Some Properties of the Solid Gaussian
Distribution 201
Reference 203
!Appendix 3 / Simplest Proof of the Langmuir Thermal
Limit 205
Conditions at the Cathode Image 205
Conditions at a Crossover 211
Analysis of the Limit Conditions 212
Nearness-of-Approach to Langmuir-Limit and Fraction
of Current Utilized 213
Reference 215
Appendix 4 j On the Question of Equivalence of Electron
Beams in Derived and Prototype Tubes 217
INDEX 221
|
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| dewey-search | 621.381542 |
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| dewey-tens | 620 - Engineering and allied operations |
| discipline | Physik Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Book |
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| indexdate | 2024-07-09T17:29:11Z |
| institution | BVB |
| language | English |
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| physical | XV, 224 S. graph. Darst. |
| publishDate | 1968 |
| publishDateSearch | 1968 |
| publishDateSort | 1968 |
| publisher | Acad. Press |
| record_format | marc |
| series2 | Advances in electronics and electron physics / Supplement |
| spelling | Moss, Hilary J. Verfasser (DE-588)140340246 aut Narrow angle electron guns and cathode ray tubes Hilary Moss New York [u.a.] Acad. Press 1968 XV, 224 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Advances in electronics and electron physics / Supplement 3 Canons électroniques Tubes à rayons cathodiques Cathode ray tubes Electron gun Elektronenstrahlröhre (DE-588)4151899-8 gnd rswk-swf Elektronenröhre (DE-588)4014330-2 gnd rswk-swf Elektronenröhre (DE-588)4014330-2 s DE-604 Elektronenstrahlröhre (DE-588)4151899-8 s Supplement Advances in electronics and electron physics 3 (DE-604)BV001889378 3 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005987025&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Moss, Hilary J. Narrow angle electron guns and cathode ray tubes Canons électroniques Tubes à rayons cathodiques Cathode ray tubes Electron gun Elektronenstrahlröhre (DE-588)4151899-8 gnd Elektronenröhre (DE-588)4014330-2 gnd |
| subject_GND | (DE-588)4151899-8 (DE-588)4014330-2 |
| title | Narrow angle electron guns and cathode ray tubes |
| title_auth | Narrow angle electron guns and cathode ray tubes |
| title_exact_search | Narrow angle electron guns and cathode ray tubes |
| title_full | Narrow angle electron guns and cathode ray tubes Hilary Moss |
| title_fullStr | Narrow angle electron guns and cathode ray tubes Hilary Moss |
| title_full_unstemmed | Narrow angle electron guns and cathode ray tubes Hilary Moss |
| title_short | Narrow angle electron guns and cathode ray tubes |
| title_sort | narrow angle electron guns and cathode ray tubes |
| topic | Canons électroniques Tubes à rayons cathodiques Cathode ray tubes Electron gun Elektronenstrahlröhre (DE-588)4151899-8 gnd Elektronenröhre (DE-588)4014330-2 gnd |
| topic_facet | Canons électroniques Tubes à rayons cathodiques Cathode ray tubes Electron gun Elektronenstrahlröhre Elektronenröhre |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005987025&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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