VERSATILE TECHNIQUE FOR MEASURING FLUORESCENCE DECAY TIMES IN THE NANOSECOND REGION
A new method of accurately recording scintillation pulse contours over several decades is described. Scintillation pulses are analyzed by an apparatus which combines the very fast rise time of a pulse sampling oscilloscope and the digital storage capacity of a multichannel analyzer. A special feature of this technique is its ability to accept, within limits, pulses random in time and amplitude so that fluorescence from samples excited either by pulsed uv radiation, materials at , or alpha particles may be analyzed. This apparatus, in combination with a hydrogen flash tube and a monochromator, was used to measure the decay time of fluorescent solutions as a function of the wavelength of the exciting radiation. Decay time measurements were also made for various modes of excitation: alpha particle, materials at particle, and pulsed uv. (auth)
- Research Organization:
- Argonne National Lab., Ill.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-025653
- OSTI ID:
- 4699239
- Report Number(s):
- TID-17874; UAC-7045
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 34
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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