228 / FIELDS OF INSTRUCTION orthogonal functions, variational techniques, and Monte Carlo methods applied to monoenergetic and energy dependent transport theory. NES 616-NUMERICAL METHODS OF REACTOR ANALYSIS. 4 credits Prerequisite: NES 610. Numerical solutions to reactor analysis problems, em- phasis on the solution of one-, two- and three-dimensional diffusion equations, multiregion and multigroup diffusion methods, P, and SN calculations. NES 617-COMPUTER PROGRAMS IN THE NUCLEAR INDUSTRY. 4 credits Prerequisites: NES 610, ISE 351. Description and use of the most widely em- ployed methods and codes used in reactor physics calculations by industry. NES 618-PRINCIPLES OF FAST REACTORS. 3 credits Prerequisite: NES 611. Underlying mathematical techniques of fast reactor physics. Quantum mechanical procedures for nuclear processes involved in a fast reactor. Inelastic neutron scattering and resonance reactions. NES 619-FAST REACTOR ANALYSIS. 3 credits Prerequisite: NES 618. Computation of sodium void, Doppler and temperature coefficients, and fast reactor breeding ratio. Problems of fast reactor breeding. NES 632-NUCLEAR PROCESSING AND SEPARATIONS. 4 credits Chemical processing of fertile and fissile materials and irradiated fuels, changes in composition and reactivity during fuel irradiation, nuclear reactors and the chemical plants associated with them, waste disposal. NES 633-ISOTOPE SEPARATION. 3 credits Stable isotopes important for conventional nuclear reactors, isotopes important for fusion, methods for separating them. NES 642-HYBRID COMPUTATIONAL TECHNIQUES IN NUCLEAR ENGINEER- ING SCIENCES. 3 credits Prerequisite: ISE 357. Use of analog and digital computers coupled together. High-speed information transfer and storage. Application to problems in nuclear engineering sciences. NES 644--NUCLEAR DATA ACQUISITION AND PROCESSING. 4 credits Prerequisites: NES 404, NES 540. Acquisition and processing of data from nuclear detectors. Multi-input systems. Use of "on-line" digital computers for control of experiments. Special instrumentation techniques. NES 651-NUCLEAR POWER REACTORS 2. 4 credits Prerequisites: NES 551, NES 610. Nuclear reactors for power generation with emphasis on use of computer codes and an advanced set of problems. NES 652-REACTOR TECHNOLOGY 1. 4 credits Prerequisite: NES 611. Theories of previous courses applied to analytical design and economics of an integrated fast reactor nuclear plant. NES 653-REACTOR TECHNOLOGY 2. 4 credits Prerequisite: NES 652. Analysis of reactor systems by comparison of actual and predicted performance, with emphasis on use of computer codes. NES 654-SPECIAL NUCLEAR MATERIALS. 3 credits Prerequisites: NES 402, NES 403. Special materials used in all types of reactors; changes in properties due to radiation corrosion and other deteriorating mechanisms. NES 655-FUNDAMENTAL ASPECTS OF REACTOR SHIELDING. 3 credits Prerequisite: NES 611. Shielding design fundamentals. Methods of calculating gamma-ray attenuation, fast neutron penetration, effects of ducts and voids in shields, problems of heat generation and deposition in reactor components. NES 660-FUNDAMENTALS OF REACTOR KINETICS. 4 credits