Investigation of noise analysis techniques for the MIT heavy water lattice

A reliable system for performing a Fourier analysis of a reactor noise signal has been constructed and utilized. Both auto- and cross-correlation techniques were used to study noise signals from the MITR hohlraum and the exponential lattice. As predicted by theory* the efficiency of the detectors used was insufficient to provide positive results. The lattice transfer function was electronically simulated and analyzed by the system confirming the reliability of the equipment. Several methods are suggested for increasing detector efficiencies to provide signal levels which will permit extraction of information about the kinetic behavior of the test lattice.http://www.archive.org/details/investigationofn00hau

Heavy water lattice project annual report / editors: T.J. Thompson, I. Kaplan, [and] M.J. Driscoll ; contributors J.H. Barch ... [et al.]

Statement of responsibility on title-page reads: Editors: T.J. Thompson, I. Kaplan and M.J. Driscoll; contributors: J. H. Barch, N.L. Berube, H.E. Bliss, K.D. Bowles, E J. Chase, H.S. Cheng, F.M. Clikeman, M.J. Driscoll, I.A. Forbes, D.Frech, J.W. Gosnell, T.L. Harper, J.Harrington, III, F.H. Hauck, M.G. Johnson, I. Kaplan, B. Kelley, L.T. Papay, E.E. Pilat, L.N. Price, N.C. Rasmussen, R.L. Ricketts, E. Sefchovich, S.S. Seth, A.T. Supple, T.J. Thompson, and G.L. Woodruff"September 30, 1966""MIT-2344-9."Includes bibliographical referencesAnnual report; September 30, 1966An experimental and theoretical program on the physics of heavy water moderated, slightly enriched lattices is being conducted at the Massachusetts Institute of Technology. During the past year, work was completed on studies of fast neutron distributions, lattices with added neutron absorbers, miniature lattices, two-region lattices, pulsed neutron source methods, and single,-rod experiments. In the past year, measurements were also completed on six lattices: three spacings each for 0.75-inch- and 0.387-inch-diameter, 0.947% enriched, uranium metal fuel.U.S. Atomic Energy Commission contract AT(30-1)234