Degradation characteristics of Au-Si nuclear detectors by a few Mev charged particle irradiation

Journal Article · Tue Feb 01 04:00:00 EST 1983 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1983.4332291· OSTI ID:5953047

Ohba, K; Hiratate, Y; Ito, S; Shoji, T

It is found that a Si surface barrier detector has been degraded after 3.2 MeV protons or 3.5 MeV /sup 3/He particle irradiation with low doses ranging from 10/sup 11/ to 10/sup 12/ cm/sup -2/. The degradation characteristics have been investigated through the changes in the reverse current, capacitance, alpha-particle counting response and DLTS measurements. /sup 3/He particle irradiation produces a change of the capacitance at lower reverse bias compared to that of proton irradiation, indicating the defect creation at the short penetration depth of /sup 3/He particles. Capacitance-voltage characteristics of the irradiated detectors can be simply analysed using Poisson's equation with an assumption that the charge defects are created within the depletion layers. Such kinds of defects are considered as electron traps at 0.36, 0.45 and 0.51 eV from the conduction band.

• Research Organization: Department of Electronics, Tohoku Institute of Technology, Yagiyama, Sendai 982
• OSTI ID: 5953047
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 30:1; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

440200* -- Radiation Effects on Instrument Components
Instruments
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA PARTICLES
BARYONS
CAPACITORS
CHARGED PARTICLE DETECTION
CHARGED PARTICLES
CURRENTS
DECAY
DETECTION
DIFFERENTIAL EQUATIONS
ELECTRICAL EQUIPMENT
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EQUATIONS
EQUIPMENT
EVEN-ODD NUCLEI
FERMIONS
GOLD
HADRONS
HELIUM 3
HELIUM ISOTOPES
IRRADIATION
ISOTOPES
LIGHT NUCLEI
MEASURING INSTRUMENTS
METALS
MEV RANGE
MEV RANGE 01-10
NUCLEI
NUCLEONS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL RADIATION EFFECTS
POISSON EQUATION
PROTONS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION EFFECTS
SEMICONDUCTOR DETECTORS
SEMIMETALS
SI SEMICONDUCTOR DETECTORS
SILICON
STABLE ISOTOPES
TRANSITION ELEMENTS