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Hannon, James P. Crofton, Bouldin Pat 2018-12-18T21:17:37Z 2018-12-18T21:17:37Z 1975 Crofton, Bouldin Pat. "Two photon parametric conversion of Moessbauer gamma rays." (1975) Master’s Thesis, Rice University. https://hdl.handle.net/1911/104117. https://hdl.handle.net/1911/104117 RICE1744 Thesis Phys. 1975 Crofton Text includes handwritten formulas This thesis considers aspects of parametric conversion of Mossbauer gamma rays. This process is important because it could be used to tune the output of a gamma ray laser; but, furthermore, it is a process of fundamental intrinsic interest in quantum electrodynamics. We first calculate the S matrix for the parametric process and obtain from this the differential cross section. We then discuss the signal sharpening which occurs for coherent parametric conversion near a Bragg angle and, finally, make a specific calculation of the expected counting rate from a crystal of Ytterbium 171. 66 pp reformatted digital eng Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. Two photon parametric conversion of Moessbauer gamma rays Thesis Text Physics Natural Sciences Rice University Masters Master of Arts open.access