Bulletin of the American Physical Society
90th Annual Meeting of the Southeastern Section of the APS
Thursday–Saturday, November 9–11, 2023; Eastern Kentucky University, Richmond, Kentucky
Session E01: Poster Session
6:00 PM,
Thursday, November 9, 2023
Keen Johnson
Room: Walnut Hall
Abstract: E01.00066 : SLIMER’s Polonium-210 Decay Analysis for Microbial Research*
Presenter:
Emma C Krebs
(Tennessee Technological University)
Authors:
Emma C Krebs
(Tennessee Technological University)
Mary F Kidd
(Tennessee Technological University)
SLIMER utilizes a commercial fluorescence-imaging microscope, CsI(Tl) scintillators, and an electron multiplying charge-coupled camera to detect radioactive decays’ intensity and location. The radioactive source releases electrons which enter the scintillator’s columnar structure and totally internally reflects, maintaining the position information, and enter the camera as light. A study of this system used Polonium-210 to relate the pixel intensity volume of a detected event to the energy of emitted alpha particles. The study found that while location and volume intensities could be taken from detected events, further refinement is needed before being able to relate the volume intensities to emitted energy levels of a particular source.
Although originally for soil analysis, SLIMER has applications for many fields ranging from geological dating to extremophile studies for astrobiology.
*Tennessee Technological University CISE grant
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