Low-energy proton detection by Pd metal-insulator-semiconductor diodes

Journal Article · Thu Dec 15 00:00:00 EST 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.341973· OSTI ID:6712417

Hughes, R C; Bastasz, R

It has been discovered that palladium-gated metal-insulator-silicon Schottky barrier diodes are very sensitive to fluxes of energetic protons in high vacuum. Data on the dosimetric response of the diodes to energetic protons are presented, along with data on the subsequent decay in the induced signal. A model for the response is developed, based on the response of similar structures to partial pressures of molecular hydrogen. The model involves adsorption sites at both the external Pd surface and the interface between Pd and SiO/sub 2/, as well as known H absorption properties of bulk Pd. The sensitivity at 300 K of our diodes is about 10/sup 9/ protons (10/sup 11/ cm/sup -2/). The inventory of protons stored in the bulk Pd, the surface, and at the interface indicates that the areal site density for the surface and interface is about 10/sup 15/ cm/sup -2/.

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• OSTI ID: 6712417
• Journal Information: J. Appl. Phys.; (United States), Vol. 64:12
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
HYDROGEN
ADSORPTION
PALLADIUM
SORPTIVE PROPERTIES
PROTON DETECTION
SCHOTTKY BARRIER DIODES
FABRICATION
PHYSICAL RADIATION EFFECTS
SENSITIVITY
EXPERIMENTAL DATA
HIGH TEMPERATURE
INTERFACES
PROTONS
SILICA
BARYONS
CHALCOGENIDES
CHARGED PARTICLE DETECTION
DATA
DETECTION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
INFORMATION
METALS
MINERALS
NONMETALS
NUCLEONS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RADIATION DETECTION
RADIATION EFFECTS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENTS
420800* - Engineering- Electronic Circuits & Devices- (-1989)
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
360104 - Metals & Alloys- Physical Properties