Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Electromagnetic and nuclear radiation detector using micromechanical sensors

Patent ·
OSTI ID:873240
 [1];  [1];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
+ Show Author Affiliations
Electromagnetic and nuclear radiation is detected by micromechanical sensors that can be coated with various interactive materials. As the micromechanical sensors absorb radiation, the sensors bend and/or undergo a shift in resonance characteristics. The bending and resonance changes are detected with high sensitivity by any of several detection methods including optical, capacitive, and piezoresistive methods. Wide bands of the electromagnetic spectrum can be imaged with picoJoule sensitivity, and specific absorptive coatings can be used for selective sensitivity in specific wavelength bands. Microcantilevers coated with optical cross-linking polymers are useful as integrating optical radiation dosimeters. Nuclear radiation dosimetry is possible by fabricating cantilevers from materials that are sensitive to various nuclear particles or radiation. Upon exposure to radiation, the cantilever bends due to stress and its resonance frequency shifts due to changes in elastic properties, based on cantilever shape and properties of the coating.
Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
Patent Number(s):
US 6118124
OSTI ID:
873240
Country of Publication:
United States
Language:
English

References (10)

Thermal and ambient‐induced deflections of scanning force microscope cantilevers journal May 1994
Photothermal spectroscopy with femtojoule sensitivity using a micromechanical device journal November 1994
Sensing Discrete Streptavidin-Biotin Interactions with Atomic Force Microscopy journal February 1994
A nondestructive method for determining the spring constant of cantilevers for scanning force microscopy journal February 1993
Measuring intermolecular binding forces with the Atomic-Force Microscope: The magnetic jump method journal January 1994
Observation of a chemical reaction using a micromechanical sensor journal January 1994
Microfabrication of cantilever styli for the atomic force microscope
  • Albrecht, T. R.; Akamine, S.; Carver, T. E.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 8, Issue 4 https://doi.org/10.1116/1.576520
journal July 1990
A mechanical nanosensor in the gigahertz range: where mechanics meets electronics journal January 1994
Adhesion forces between individual ligand-receptor pairs journal April 1994
Quantized adhesion detected with the atomic force microscope journal June 1992

Similar Records

Micromechanical radiation dosimeter
Journal Article · Sun Mar 19 23:00:00 EST 1995 · Applied Physics Letters; (United States) · OSTI ID:6762807
Optical and infrared detection using microcantilevers
Technical Report · Wed May 01 00:00:00 EDT 1996 · OSTI ID:238545
Micromechanical sensors for chemical and physical measurements
Journal Article · Thu Jun 01 00:00:00 EDT 1995 · Review of Scientific Instruments · OSTI ID:56016

Related Subjects

/250/
absorb
absorb radiation
absorptive
active material
active materials
bands
based
bend
bending
bends
cantilever
cantilevers
capacitive
changes
characteristics
coated
coating
coatings
cross-linking
detected
detection
detection method
detection methods
detector
dosimeters
dosimetry
due
elastic
elastic properties
electromagnetic
electromagnetic spectrum
exposure
fabricating
frequency
frequency shift
imaged
including
integrating
interactive
materials
mechanical sensor
mechanical sensors
methods
microcantilevers
micromechanical
micromechanical sensors
nuclear
nuclear particle
nuclear particles
nuclear radiation
optical
optical radiation
particles
picojoule
piezoresistive
polymers
properties
radiation
radiation detector
radiation dosimeter
radiation dosimeters
radiation dosimetry
resonance
resonance frequency
selective
sensitive
sensitivity
sensors
shape
shift
shifts
specific
specific wavelength
spectrum
stress
undergo
useful
various
wavelength
wavelength band
wavelength bands
wide
wide band