Effect of fast neutrons on the electric resistivity of porcelain for application in fast-neutron dosimetry

Journal Article · Mon Nov 01 00:00:00 EST 1982 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3576000· OSTI ID:6526502

Fadel, M A ^[1]; Abdel-Fattah, W I; Abdulla, A A; Kadum, A A

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1. Cairo Univ., Egypt

The electric resistivity (rho) of quartz and alumina porcelain was measured before and after irradiation with different fluences (phi) of fission neutrons in the range of 10/sup 7/-10/sup 12/ n/cm/sup 2/ and at different temperatures in the range of 20-90/sup 0/C. The results showed that the activation energy (..delta..E) for quartz porcelain decreased progressively with the increase of phi, while it remained approximately constant for alumina porcelain. Moreover, the electric resistivity of alumina porcelain decreased with the increase of phi. However, there were no measureable effects of /sup 60/Co ..gamma.. doses up to 0.6 Mrad on the electric resistivities of the samples. An empirical formula for calculating phi from the measured value of ..delta..E for quartz porcelain was achieved. A semiempirical formula for calculating phi for the resistivity data for the alumina porcelain is given. The effect of neutron energies on the induced changes in (rho) for the alumina porcelain was investigated. Additionally, the effect of storage at 50/sup 0/C for periods up to 3 weeks on these changes were also measured.

• OSTI ID: 6526502
• Journal Information: Radiat. Res.; (United States), Vol. 92:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PORCELAIN
ACTIVATION ENERGY
ELECTRIC CONDUCTIVITY
PHYSICAL RADIATION EFFECTS
COBALT 60
FAST NEUTRONS
FISSION NEUTRONS
GAMMA RADIATION
NEUTRON DOSIMETRY
STORAGE
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COBALT ISOTOPES
DOSIMETRY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HADRONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PHYSICAL PROPERTIES
RADIATION EFFECTS
RADIATIONS
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
360206* - Ceramics
Cermets
& Refractories- Radiation Effects
440102 - Radiation Instrumentation- Radiation Dosemeters