Remote sensing phase fluorimetry using mercury vapor lamp

Lundin, Michael A.; Bohn, Manfred A.

doi:10.1117/12.718606

Cited by 1 publication

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“…The goal of this research effort is not to improve upon previous methods for measuring the lifetime of a fluorophore, but to demonstrate that the power harmonics in a common mercury vapor lamp could be used for remote sensing FD fluorimetry. In this report the test sample of willemite is described in detail because the uranium samples have been presented in a previous publication [6].…”

Section: Theorymentioning

confidence: 99%

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Frequency domain fluorimetry using a mercury vapor lamp

Bohn

Lundin

Marciniak

2009

J. Appl. Remote Sens

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Abstract. Frequency Domain (FD) fluorimetry, capitalizes on the frequency response function of a fluorophore and offers independence from light scatter and excitation/emission intensity variations in order to extract the sample's fluorescent lifetime. Mercury vapor lamps, a common source of industrial facility lighting, emit radiation that overlaps the UV/blue absorption spectrum of many fluorophores and may be used as an efficient and portable excitation source. The AC power modulation of mercury vapor lamps modulates the lamp's intensity at 120 Hz (in the United States) and higher harmonics. The fluorescent lifetimes for 3 different materials (willemite, uranium doped glass and U 3 O 8 ) are measured with conventional techniques and compared with the FD technique using the power harmonics from a mercury vapor lamp. The mercury lamp measurements agree to within 25% of the conventional methods.

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Section: Theorymentioning

confidence: 99%

“…Using similar experimental methods, two uranyl, UO 2 2+ , compounds were also investigated [6]. The first was a sample of UO 2 2+ doped glass, commonly called vaseline glass, which can be found in antique stores and typically contains less than 2% uranium.…”

Section: Uranium Compoundsmentioning

confidence: 99%