TABLE OF CONTENTS
Personnel
vii
Publications and Reports
xiv
xxiii
Introduction
I.
II.
III.
1
Physical Electronics
Ionization of Cesium at Surfaces
1
The Energy Distribution for Electrons in a Thermionic
Diode Cannot Be Truly Maxwellian
1
3
Microwave Spectroscopy
A Search for Possible Superconductivity in Thin
Films of Rare Earth Metals
3
Properties of Superposed Superconducting Thin Films
3
Measurement of the 1-1 Inversion Frequency of NH 3
and Experiments with a Two-Cavity Maser
3
Experiments with Microwave Phonons
4
5
Optical and Infrared Masers
5
Status of Research
IV.
Corkscrew Instability
11
High-Power Solenoid Electromagnet
12
Quadrupole Magnet and Transverse-Field Magnet
for Plasma Studies
14
195
, Hg
Hyperfine Structure and Isotope Shifts in Hg
Hg
V.
VI.
11
Nuclear Magnetic Resonance and Hyperfine Structure
194
, and Hgl
93
*
95
,
18
A Perturbation Solution of the Equation of Motion
for the Density Matrix
19
Local Energy Balance of the Electron Gas
in a Spherical Plasma
19
Microwave Electronics
25
High-Perveance Hollow Electron-Beam Study
25
Kinematic Theory of Gap Interaction for
Relativistic Electron Beams
29
Hollow Electron Beams from Hollow Cathodes
33
Molecular Beams
37
Cesium Beam Tube Investigation
37
Measurement of Frequency Stability
38
Varactor Multiplier Studies
38
Superconducting Lead Cavity
41
Measurement of the Velocity of Light
42
CONTENTS
VII.
VIII.
Radio Astronomy
49
Millimeter Radio Telescope
49
Atmospheric Water-Vapor Resonance Line Profile
52
A New Upper Limit to the Galactic
Deuterium-to-Hydrogen Ratio
56
Project Luna See
60
Physical Acoustics
67
Magnetohydrodynamic Instabilities in a Low-Density
Liquid Conductor
IX.
67
Generation of Shock Waves by Exploding Wires
Magnetically Driven Shock Waves in Solid Conductors
68
Sound Propagation in Cu3Au
69
Field Measurements of Sound Propagation over Ground
69
Noise in Electron Devices
69
71
Optimum Noise Performance
71
Plasma Dynamics
X.
Plasma Physics
79
Electron Temperature Decay in Helium Plasma Afterglow
Electron Energies from the Langevin Equation
83
Harmonics of Electron-Cyclotron Emission from
Low and Intermediate Pressure Discharges
XI.
79
Negative Conductivity
86
91
One-Megacycle Bridge for Plasma Measurements
Dispersion Relation for Longitudinal Plasma Waves
100
Comments on Plasma Constriction
107
Plasma Electronics
Energy and Power in Media with
Temporal and Spacial Dispersion
98
111
111
Electron Beam-Plasma Interaction Experiments
A Magnetohydrodynamic Small-Signal Power Theorem
116
Magnetohydrodynamic Generalization of Kelvin's Theorem
The Effect of Internal Currents on the
Plasma Density Distribution
Production of Ion Beams
127
Large-Volume Superconducting Solenoid
Energy Extraction Blanket for a Fusion Reactor
139
Design and Construction of Pulsed Plasma Accelerator
15 1
123
129
137
142
CONTENTS
XII.
Plasma Magnetohydrodynamics and Energy Conversion
165
An Electrodynamic Amplifier for
a Low-Conductivity Plasma
165
A Criterion and an Experiment for the Observation
of Electrohydrodynamic Antishocks
173
Space-Charge Distributions, Instabilities, and
Oscillations in a Low-Pressure Diode
179
Communication Sciences and Engineering
XIII.
Statistical Communication Theory
Work Completed
XVI.
187
Methods of Determining Coefficients
for Optimum Systems
187
Synthesis of Several Sets of
Orthogonal Functions
187
Threshold Study of Phase-Locked Loops
187
A Two-State Modulation System
187
Design of Filters for Non Mean-Square-Error
Performance Criteria by Means of
a Continuous Adjustment Procedure
189
Nonlinear No-Memory Filters of a Prescribed Form
201
Methods of Determining Coefficients for Optimum Systems
2 11
Synthesis of Several Sets of Orthogonal Functions
2 18
XIV. Processing and Transmission of Information
XV.
187
229
Picture Processing
229
Sequential Encoding of a Binary Source
with a Distortion Measure
231
Coding for Discrete Memoryless Two-Way Channels
239
Encoding Circuits for Convolutional Codes
253
Threshold Decoding of Convolutional Codes
257
Error Detection and Correction for a
Two-Way Channel
266
Coding for Printed English
270
Speech Communication
275
An Automatic Spectrum Matching Program
275
Data Derived by an Automatic Spectrum
Matching Program
278
Errata
282
Signal Detection by Human Observers
Masking with Two Continuous Tones
283
283
CONTENTS
XVII.
Mechanical Translation
On the Problem of Sentence Synonymy
XVIII.
XIX.
XX.
XXI.
XXII.
Linguistics
289
289
295
A Descriptive Convention for Treating
Assimilation and Dissimilation
295
The Proto-Slavic Diphthongs
296
Communications Biophysics
299
Components of the Responses Evoked
by Stimulation of the Auditory Cortex
of Anaesthetised Cats
299
Some Response Characteristics of Single
Units in the Cochlear Nucleus to
Tone-Burst Stimulation
306
Cortical Correlates of Behavioral States in the Rat
315
Shape Recognition
320
Switching-In Stimulus Analyzing Mechanisms
327
Recognition, Recall, and Information
330
Neurophysiology
333
Form-Function Relations in Neurons
333
Olfaction
335
Neurology
337
Dynamics of the Human Lens System
337
Single-Unit Responses in a Primitive
Photoreceptor Organ
351
Optokinetic Nystagmus in Man
366
A Sampled-Data Model for Eye-Tracking Movements
370
An Analytical Model of a Muscle Spindle
Receptor for Simulation of
Motor Coordination
384
Transient Responses of Human Motor
Coordination System
389
Simultaneous Hand and Eye Tracking Movements
395
Computer Analysis of Handwriting
401
Pupillometry
404
Re-evaluation of the Pupil System
412
Analog Simulation of the Human Pupil System
420
Sensory Aids Research
An Informational Analysis of Discrete Human
Communication Systems
Author Index
429
429
442