Daniel McCartt works at LLNL’s Center for Accelerator Mass Spectrometry (CAMS) developing laser-based spectroscopic methods. CAMS leverages AMS’s ability to detect rare isotopic species to perform incredible science. He is currently developing a cavity ring-down spectroscopy (CRDS) instrument for the detection of carbon-14. The measurement of carbon-14 with accelerator mass spectrometer is often cost prohibitive due to the substantial investment required in both facilities and technically proficient staff. A more affordable carbon-14 CRDS would enable the proliferation of powerful carbon-14 scientific applications such as micro-dose drug testing and anthropogenic carbon cycle monitoring. The current prototype is capable of sub-contemporary carbon-14 measurements and is suitable for use in biological studies.
A. D. McCartt, T. J. Ognibene, G. Bench, and K. W. Turteltaub (2016). “Quantifying Carbon-14 for Biology Using Cavity Ring-Down Spectroscopy,” Analytical Chemistry 88(17):8714–8719.
A. D. McCartt, T. J. Ognibene, G. Bench, and K. W. Turteltaub (2015) “Measurements of carbon-14 with cavity ring-down spectroscopy,” Nucl. Instrum. Methods Phys. Res. B 361:277–280.
A. D. McCartt, T. J. Ognibene, G. Bench, and K. W. Turteltaub (2014). “Model-based, closedloop control of PZT creep for cavity ring-down spectroscopy,”. Measurement Science and Technology25(9), 095201.
A. D. McCartt (2014) “Development of a low-temperature cavity ring-down spectrometer for the detection of carbon-14,” Stanford University.
A. D. McCartt, Gates, S. D., et al. (2012). “In situ Optical Measurements of Bacterial Endospore Breakdown in a Shock tube,” Applied Physics B: Lasers and Optics 1–6.
A. D. McCartt, Gates, S. D., et al. (2011). “Response of Bacillus thuringiensis Al Hakam endospores to gas dynamic heating in a shock tube,” ZPC225,1367–1377.
S. D. Gates, A. D. McCartt, et al. (2011) “Extension of Bacillus endospore gas dynamic heating studies to multiple species and test conditions,” Journal of Applied Microbiology111(4): 925–931.
S. D. Gates, A. D. McCartt, et al. (2010) “Bacillus endospore resistance to gas dynamic heating,” Journal of Applied Microbiology109(5): 1591–1598.
2017, “Making Carbon-14 Measurements More Accessible,” Monterey Bay Aquarium Research Institute Seminar (Monterey, USA)
2017, “14C-labeled, biological-sample measurements by cavity ring-down spectroscopy: Detection method, sample automation, and comparison to AMS,” 14th International Accelerator Mass Spectrometry Conference (Ottawa, Canada)
2017, “Automation of 14C-labeled, biological-sample measurements by cavity ring-down spectroscopy and comparison to accelerator mass spectrometry,” 253rd American Chemical Society National Meeting & Exposition (San Francisco, USA)
2016, “Harnessing the Building Block of Life: Using Carbon-14 to Monitor Fossil Fuel Emissions,” LLNL ResearchSlam! 3 minute speech competition (3rd Place) (California, USA)
2016, “Quantifying Carbon-14 with Cavity Ring-Down Spectroscopy for Biology,” LLNL Physical and Life Sciences Postdoc Seminar Series (Livermore, USA)
2014, “Quantification of 14C with Cavity Ring-Down Spectroscopy,” The Thirteenth International Conference on Accelerator Mass Spectrometry (Aix en Provence, France)
2009, “In Situ Optical Measurements of Shock Wave Interactions with Endospore-Laden Bioaerosols,” Chemical and Biological Defense Science and Technology Conference (Dallas, USA)
US 9,645,077, May 5, 2017, Titled: “Optical spectrometer for analysis of carbon-14, computes carbon-14 concentration from detector signal, and provides spectroscopic model to account for contributions from interfering species that interfere with carbon-14,” by T. Ognibene, G. Bench, A.D. McCartt, K. Turteltaub, C.W. Rella, S. Tan, J.A. Hoffnagle, N. Saad, and E. Crosson.