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Title: High resolution resonance ionization imaging detector and method

A resonance ionization imaging device (RIID) and method for imaging objects using the RIID are provided, the RIID system including a RIID cell containing an ionizable vapor including monoisotopic atoms or molecules, the cell being positioned to intercept scattered radiation of a resonance wavelength .lambda..sub.1 from the object which is to be detected or imaged, a laser source disposed to illuminate the RIID cell with laser radiation having a wavelength .lambda..sub.2 or wavelengths .lambda..sub.2, .lambda..sub.3 selected to ionize atoms in the cell that are in an excited state by virtue of having absorbed the scattered resonance laser radiation, and a luminescent screen at the back surface of the RIID cell which presents an image of the number and position of charged particles present in the RIID cell as a result of the ionization of the excited state atoms. The method of the invention further includes the step of initially illuminating the object to be detected or imaged with a laser having a wavelength selected such that the object will scatter laser radiation having the resonance wavelength .lambda..sub.1.
Authors:
 [1] ;  [1] ;  [1]
  1. (Gainesville, FL)
Publication Date:
OSTI Identifier:
872788
Report Number(s):
US 6008496
DOE Contract Number:
FG05-88ER13881
Resource Type:
Patent
Research Org:
University of Florida (Gainesville, FL)
Country of Publication:
United States
Language:
English
Subject:
resolution; resonance; ionization; imaging; detector; method; resonance; ionization; imaging; device; riid; method; imaging; riid; provided; riid; including; riid; cell; containing; ionizable; vapor; including; monoisotopic; atoms; molecules; cell; positioned; intercept; scattered; radiation; resonance; wavelength; lambda; detected; imaged; laser; source; disposed; illuminate; riid; cell; laser; radiation; wavelength; lambda; wavelengths; lambda; lambda; selected; ionize; atoms; cell; excited; virtue; absorbed; scattered; resonance; laser; radiation; luminescent; screen; surface; riid; cell; image; position; charged; particles; riid; cell; result; ionization; excited; atoms; method; step; initially; illuminating; detected; imaged; laser; wavelength; selected; scatter; laser; radiation; resonance; wavelength; lambda; resonance ionization; resonance ionization; imaging device; charged particles; charged particle; laser radiation; laser radiation; laser radiation; laser source; cell containing; scattered radiation; imaging detector; resonance wavelength; resonance wavelength; cell contain; ionization imaging; ionization imaging /250/