24 September 2007 Order and charge collection correlations in organic materials for neutron detection
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Abstract
Organic materials, and in particular, poly(p-phenylene vinylene)s, are being investigated for solid state neutron detection. Semiconducting organics can offer direct detection because of high resistivity, high dielectric strength, natural gamma discrimination due to low Z, and room temperature operation. However, the effective charge collection is dependant on several material processing variables, including solvent choice and concentration, substrate, deposition method and conditions, post-deposition processing, and other factors, all of which can influence the local and bulk order of the material. We have investigated the effects of processing variables on the material order through infrared dichroism. The charge collection of the device was measured with visible laser excitation, and related to the order.
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Tiffany M. S. Wilson, Tiffany M. S. Wilson, F. Patrick Doty, F. Patrick Doty, Douglas A. Chinn, Douglas A. Chinn, Michael J. King, Michael J. King, Blake A. Simmons, Blake A. Simmons, } "Order and charge collection correlations in organic materials for neutron detection", Proc. SPIE 6707, Penetrating Radiation Systems and Applications VIII, 670710 (24 September 2007); doi: 10.1117/12.740660; https://doi.org/10.1117/12.740660
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