TABLE OF CONTENTS
Personnel
vi
Publications and Reports
ix
xiii
Introduction
I.
Physical Electronics
Electron Emission Problems
Thermionic Emission from a Planar Molybdenum Crystal
Physical Electronics in the Solid State
1
1
3
Hall Effect in Lead-Sulfide Films
3
Surface States on Semiconductors
3
Temperature Dependence of the Resistance of
Germanium P-N Junctions
4
Experimental Techniques
II.
1
4
Spectral Emissivity of Tungsten
4
High-Vacuum Studies
4
Microwave Gaseous Discharges
Plasma Oscillations
7
7
Nonuniform Electric Fields
10
Pulsed Breakdown
13
Magnetic Field Studies
16
Highly Ionized Microwave Plasma
17
III.
Solid State Physics
20
IV.
Microwave Spectroscopy
22
V.
VI.
Molecular-Beam Microwave Spectroscope
22
Paramagnetic Resonance
25
The Versitron
25
Micromodulator
26
Nuclear Magnetic Resonance and Hyperfine Structure
27
Some Interrelations of the Magnetic Sublevels
of Hyperfine-Structure Lines
28
Intermediate Coupling in Nuclear Resonance Spectra
29
The Free Electron Model for Chemical Shifts
30
Microwave Electronics
31
Limiting Noise Figure of a Microwave Tube with a
Beam of Finite Diameter
32
Cavity-to-Helix Coupling
36
Hollow-Beam Focusing
37
Hollow-Beam Gun Design
39
Low-Q Cavity Design
40
Multicavity Klystrons
40
CONTENTS
VII.
Atomic Beams
Frequency Stabilization of K-Band Klystrons
50
50
VIII.
Stroboscopic Research
52
IX.
Frequency Modulation Studies
53
X.
Statistical Communication Theory
54
Analytic Nonlinear Systems
54
Invariance of Correlation Functions under
Nonlinear Transformations
61
Representation and Synthesis of Certain Linear Operators
65
Convergence Properties of Sequences of Singular Networks
70
Time-Limited and Band-Limited Functions
72
Analog Probability Density Analyzer
75
On the Synthesis of Linear Systems for Pure Transmission,
Delayed Transmission, and Linear Prediction of Signals
77
XI.
Process Analysis and Synthesis
101
XII.
Processing and Transmission of Information
108
A New Mode of Operation for Sequential Switching Circuits
108
XIII.
Transistor Circuits
112
XIV.
Noise in Electron Devices
113
An Extension of the Noise Figure Definition
113
Canonical Form of a Noisy Linear n Terminal-Pair Network
117
XV.
Speech Analysis
120
XVI.
Mechanical Translation
121
XVII.
Communications Biophysics
122
XVIII.
XIX.
Detection of Responses to Clicks in Awake Subjects by
an Averaging Procedure
123
The Pacing of EEG Potentials of Alpha Frequency by
Low Rates of Repetitive Flash in Man
127
Correlators for the Investigation of Neuroelectric Activity
130
Neurophysiology
135
Recent Work
135
Instrumentation
137
Circuit Theory
138
Some Limitations of Amplifying Devices
138
Piecewise-Linear Network Theory
143
CONTENTS
XX.
XXI.
XXII.
Network Synthesis
144
Transient Correction with All-Pass Networks
144
Geometric Interpretation of Gewertz's Stability Condition
Using the Isometric Circles
146
Microwave Theory
149
The Isometric Circle Method in Analytical Form
149
Graphical Determination of the Efficiency of Bilateral,
Two Terminal-Pair Networks
152
Mathematics
155
On Effective Computability
155
A New Inequality in Communication Theory
155
Valuated Algebras
156