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DOE OSTI · 1774722

Projection imaging with ultracold neutrons

Kuk, K. (ORCID:0000000153428404)·Cude-Woods, C.·Chavez, C. R. (ORCID:0000000278536900)·Choi, J. H. (ORCID:0000000237681634)·Estrada, J.·Hoffbauer, M.·Holland, S. E.·Makela, M.·Morris, C. L.·Ramberg, E.·Adamek, E. R.·Bailey, T. (ORCID:0000000179154333)·Blatnik, M. (ORCID:0000000334960010)·Broussard, L. J.·Brown, M. A. -P.·Callahan, N. B.·Clayton, S. M.·Currie, S. (ORCID:0000000261647321)·Filippone, B. W.·Fries, E. M. (ORCID:0000000237888096)·Geltenbort, P. (ORCID:0000000190453801)·Gonzalez, F. (ORCID:0000000259544155)·Hassan, M. T. (ORCID:0000000161228381)·Hayen, L.·Hickerson, K. P.·Holley, A. T.·Ito, T. M.·Liu, C. -Y.·Merkel, P.·Musedinovic, R. (ORCID:0000000311363918)·O’Shaughnessy, C. (ORCID:0000000204287374)·Pattie, Jr., R. W.·Plaster, B.·Salvat, D. J.·Saunders, A.·Sharapov, E. I. (ORCID:0000000252873837)·Sun, X. (ORCID:0000000188174643)·Tang, Z.·Wei, W. (ORCID:0000000296704787)·Wexler, J. W.·Young, A. R.·Wang, Zhehui
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10B nanometer thin film74 ATOMIC AND MOLECULAR PHYSICSAtomic, Nuclear and Particle PhysicsUltracold neutronsdirect detectionlow backgroundneutron detection efficiencyprojection imaging

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Kuk, K. (ORCID:0000000153428404), Cude-Woods, C., Chavez, C. R. (ORCID:0000000278536900), Choi, J. H. (ORCID:0000000237681634), Estrada, J., Hoffbauer, M., Holland, S. E., Makela, M., Morris, C. L., Ramberg, E., Adamek, E. R., Bailey, T. (ORCID:0000000179154333), Blatnik, M. (ORCID:0000000334960010), Broussard, L. J., Brown, M. A. -P., Callahan, N. B., Clayton, S. M., Currie, S. (ORCID:0000000261647321), Filippone, B. W., Fries, E. M. (ORCID:0000000237888096), Geltenbort, P. (ORCID:0000000190453801), Gonzalez, F. (ORCID:0000000259544155), Hassan, M. T. (ORCID:0000000161228381), Hayen, L., Hickerson, K. P., Holley, A. T., Ito, T. M., Liu, C. -Y., Merkel, P., Musedinovic, R. (ORCID:0000000311363918), O’Shaughnessy, C. (ORCID:0000000204287374), Pattie, Jr., R. W., Plaster, B., Salvat, D. J., Saunders, A., Sharapov, E. I. (ORCID:0000000252873837), Sun, X. (ORCID:0000000188174643), Tang, Z., Wei, W. (ORCID:0000000296704787), Wexler, J. W., Young, A. R., Wang, Zhehui. 2021-07-01. Projection imaging with ultracold neutrons. https://doi.org/10.1016/j.nima.2021.165306

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Demonstration of sub-micron UCN position resolution using room-temperature CMOS sensor

High spatial resolution of ultracold neutron (UCN) measurement is of growing interest to UCN experiments such as UCN spectrometers, UCN polarimeters, quantum physics of UCNs, and quantum gravity. Here we utilize physics informed deep learning to enhance the experimental position resolution and to demonstrate sub-micron spatial resolutions for UCN position measurements obtained using a room-temperature CMOS sensor, extending our previous work that demonstrated a position uncertainty of 1.5 microns. We explore the use of the open-source software Allpix Squared to generate experiment-like synthetic hit images with ground-truth position labels. We use physics-informed deep learning by training a fully connected neural network (FCNN) to learn a mapping from input hit images to output hit position. The automated analysis for sub-micron position resolution in UCN detection combined with the fast data rates of current and next generation UCN sources will enable improved precision for future UCN research and applications.

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