Electromagnetic and nuclear radiation detector using micromechanical sensors

Thundat, Thomas G; Warmack, Robert J; Wachter, Eric A

Title: Electromagnetic and nuclear radiation detector using micromechanical sensors

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873240

Thundat, Thomas G ^[1]; Warmack, Robert J ^[1]; Wachter, Eric A ^[2]

Knoxville, TN
Oak Ridge, TN

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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

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)

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
Measuring intermolecular binding forces with the Atomic-Force Microscope: The magnetic jump method Hoh, J. H.; Hillner, P. E.; Hansma, P. K. Proceedings, annual meeting, Electron Microscopy Society of America, Vol. 52 https://doi.org/10.1017/S0424820100173005	journal	January 1994
Sensing Discrete Streptavidin-Biotin Interactions with Atomic Force Microscopy Lee, Gil U.; Kidwell, David A.; Colton, Richard J. Langmuir, Vol. 10, Issue 2 https://doi.org/10.1021/la00014a003	journal	February 1994
Photothermal spectroscopy with femtojoule sensitivity using a micromechanical device Barnes, J. R.; Stephenson, R. J.; Welland, M. E. Nature, Vol. 372, Issue 6501 https://doi.org/10.1038/372079a0	journal	November 1994
Quantized adhesion detected with the atomic force microscope Hoh, Jan H.; Cleveland, Jason P.; Prater, Craig B. Journal of the American Chemical Society, Vol. 114, Issue 12 https://doi.org/10.1021/ja00038a075	journal	June 1992
A nondestructive method for determining the spring constant of cantilevers for scanning force microscopy Cleveland, J. P.; Manne, S.; Bocek, D. Review of Scientific Instruments, Vol. 64, Issue 2 https://doi.org/10.1063/1.1144209	journal	February 1993
A mechanical nanosensor in the gigahertz range: where mechanics meets electronics Binh, Vu Thien; Garcia, N.; Levanuyk, A. L. Surface Science, Vol. 301, Issue 1-3 https://doi.org/10.1016/0039-6028(94)91277-7	journal	January 1994
Observation of a chemical reaction using a micromechanical sensor Gimzewski, J. K.; Gerber, Ch.; Meyer, E. Chemical Physics Letters, Vol. 217, Issue 5-6, p. 589-594 https://doi.org/10.1016/0009-2614(93)E1419-H	journal	January 1994
Adhesion forces between individual ligand-receptor pairs Florin, E.; Moy, V.; Gaub, H. Science, Vol. 264, Issue 5157 https://doi.org/10.1126/science.8153628	journal	April 1994
Thermal and ambient‐induced deflections of scanning force microscope cantilevers Thundat, T.; Warmack, R. J.; Chen, G. Y. Applied Physics Letters, Vol. 64, Issue 21 https://doi.org/10.1063/1.111407	journal	May 1994

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Related Subjects

electromagnetic
nuclear
radiation
detector
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sensors
detected
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various
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materials
absorb
bend
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shift
resonance
characteristics
bending
changes
sensitivity
detection
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including
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capacitive
piezoresistive
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bands
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elastic
properties
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radiation dosimeter
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wavelength bands
wide band
frequency shift
detection methods
detection method
nuclear radiation
active material
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optical radiation
resonance frequency
active materials
wavelength band
absorb radiation
nuclear particles
specific wavelength
micromechanical sensors
electromagnetic spectrum
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elastic properties
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Title: Electromagnetic and nuclear radiation detector using micromechanical sensors

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References (10)

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