CONTENTS
General
Personnel
Administrative and Service 2
Research 3
Research Projects
I, Microwave and Physical Electronics
A. Construction of 5 mm, Oxford Type Tuabe 5 B. Construction of High Power S-band Magnetron 5
C. Magnetron Theory Research 7
D, Oxide Cathode Research 8
3. The Transmission of the Photo-effect in Silicon 11
II. Microwave Physics
A., Radio Frequency Spectra
1. Oxygen Absorption Spectra at 5 mPm. 14
2. Caesium- Hyperfine Structure 15
3. Molecular Beemg 18
B, Gas, Discharge Research
4 Iw Pressure Dischargeso
2. Microvave Spark Breakdwn 19
Co Low Temperature Research 20
D. Ferromagnetism at Microwave Frequencies 22 -II., Modern Electronic Techniques Applied to Physics- and Egineering
A. Studies Leading to the Design of a Microwave Accelerator 23
3. Ultrasonics Research Program 24
0, High Speed Oscilloscope and Magnetron Moding 26 D. Electronic Instruments for Measuring High Speed Particles in
Nuclear Exgeriments i 29
E~ Measurement and Control of De-ionization Time in Thyratrons 31 F. Experimentation in Photoelectric pectrophotometry 33 G Liquid Filled Chamber to be Used in the Photographing of Very
High Energy Ionizing Particles 36
H- Synchrotron Project 37
IV, Communications and Related Projects
A. Noise Interference and Distortion in Pulse Modulation 39 B, Stabilized Oscillator Problems
1, Modulation and Stabilization 41
2. D.C. Amplifier Problems 42
0. Circuit Problems
1, Study of Waveguides With Dissipative 'alls 42
2o The Broadbanding of Microwave Networks 43
3. The Extension of the Methods and Procedures- of the Circuit
Synthesis to Active Networks, Involving Vacuum Tubes 40
4. Transients in Waveguides 43
5. Miscellaneous Waveguide Problems 44
6, Impedance of Magic Tees 44
7. Aids tc Computation
A. Shaft Position Indicator, Reversible Counters 46
