Charge collection in n-type GaAs Schottky-barrier diodes struck by heavy energetic ions

Journal Article · Fri Nov 30 23:00:00 EST 1984 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1984.4333552· OSTI ID:5865255

Gilbert, R M; Oldham, T R; Orrebo, G K; Schifano, J

Charge collection was measured as a function of reverse-bias voltage on GaAs Schottky-barrier diodes bombarded with heavy, energetic ions. Ion species included in the study were copper (57 MeV), chlorine (62 MeV), oxygen (18 MeV), and, to establish a baseline for comparisons, /sup 241/Am-decay alpha particles (5.4 MeV). Measurements of the drift component of collected charge are compared to funneling predictions based on the McLean-Oldham model. Results show that significant funneling occurs, in reasonable agreement with predictions for the lighter ions, but to a lesser extent than predicted for the heavier ions. Measurements at the higher biases show evidence of charge multiplication.

• Research Organization: US Army ERADCOM, Harry Diamond Laboratories, Adelphi, MD 20783
• OSTI ID: 5865255
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Issue: 6 Vol. NS-31:6; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
440200* -- Radiation Effects on Instrument Components
Instruments
or Electronic Systems
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ALPHA PARTICLES
AMERICIUM 241
AMERICIUM ISOTOPES
ARSENIC COMPOUNDS
ARSENIDES
BEAMS
CHARGE COLLECTION
CHARGED PARTICLES
CHLORINE IONS
COPPER IONS
ELECTRIC POTENTIAL
ENERGY RANGE
FORECASTING
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HEAVY NUCLEI
ION BEAMS
IONS
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NUCLEI
ODD-EVEN NUCLEI
OXYGEN IONS
PHYSICAL RADIATION EFFECTS
PNICTIDES
RADIATION EFFECTS
RADIOISOTOPES
SCHOTTKY BARRIER DIODES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
YEARS LIVING RADIOISOTOPES