EFFECTS OF IRRADIATION ON THE OPTICAL ABSORPTION AND PHOTOCONDUCTIVITY OF RUTILE

Technical Report · Sun Jan 01 04:00:00 EST 1961

OSTI ID:4139818

Townsend, P D; Kan, H K.A.; Levy, P W

Optical absorption and photoconductivity measurements were made on single crystals of pure synthetic rutile (TiO/sub 2/). Reactor irradiations at 70 deg C totaling 4.8 x 10/sup 18/ nvt fast and 1.69 x 10/sup 19/ nvt slow did not produce any discernible optical absorption bands; however, the transmission decreased 5% at all wavelengths. Reactor irradiation induced at least five photoconduction peaks in the wavelength range 4200 to 14,000 A. In addition the photopeak at 4065 A (3.05 ev) was enhanced and there were drastic changes in the dependence of photocurrent with light intensity. Gammaray irradiations as large as 10/sup 9/ r do not change the conduction properties. The photocurrent is proportional to a power of the light intensity; the power range from 0.65 to 1.24 for the crystals described. The photocurrent vs voltage dependence is more complex. (auth)

• Research Organization: Picatinny Arsenal, Dover, N.J.; Brookhaven National Lab., Upton, N.Y.
• DOE Contract Number: AT(30-2)-GEN-16
• NSA Number: NSA-18-007280
• OSTI ID: 4139818
• Report Number(s): BNL-7501; CONF-159-2
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
CRYSTALS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
FREQUENCY
LIGHT
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MONOCRYSTALS
OPTICAL SYSTEMS
PHOTOELECTRIC EFFECT
RADIATION DOSES
RADIATION EFFECTS
RUTILE
TEMPERATURE
TITANIUM OXIDES