From Event: SPIE Optical Engineering + Applications, 2017
A new neutron imager, known as Neutron Imaging System North Pole, has been fielded to image the neutrons produced in the burn region of imploding fusion capsules at the National Ignition Facility. The resolution and alignment requirements and parameters that drive the design of this system are similar to the pre-existing equatorial system, there are significant changes. This work describes the parameters and limitations driving the design of this system, discusses the metrology and alignment, and shows some data from the instrument.
V. E. Fatherley, S. H. Batha, C. R. Danly, L. A. Goodwin, H. W. Herrmann, H. J. Jorgenson, J. I. Martinez, F. E. Merrill, J. A. Oertel, D. W. Schmidt, P. L. Volegov, C. A. Wilde, D. N. Fittinghoff, M. J. Ayers, D. A. Barker, G. P. Grim, R. L. Hibbard, N. D. Shingleton, and M. A. Vitalich, "System design of the NIF Neutron Imaging System North Pole," Proc. SPIE 10390, Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI, 103900F (Presented at SPIE Optical Engineering + Applications: August 08, 2017; Published: 29 August 2017); https://doi.org/10.1117/12.2274365.
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