Evolution of the electron beam envelope in a free electron laser beamline
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The free electron laser (FEL) is a new generation of laser whose development motivates further research in basic and applied physics. Unlike a conventional laser that uses a gas or solid state gain medium, the FEL gain medium is a relativistic electron beam produced by a particle accelerator. This thesis will explore electron beam dynamics in an FEL, including the beam envelope equation, which will help us understand the evolution of electron betatron motion in the undulator. Dipole magnets, quadrupoles, and solenoids play important roles in transporting and focusing in an FEL beamline. The dipole magnets redirect the electron beam to a beam dump or recirculate the electrons for energy recovery. The quadrupoles and solenoids collimate and focus the electron beam. Simulations and theory are used to model and study a simple FEL beamline.
Reissued 27 Aug 2019 with corrected SF298.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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Hall, Joseph Barry (Monterey, California. Naval Postgraduate School, 1994-06);Due to its tunability and high efficiency, the Free Electron Laser (FEL) has proven to be a versatile coherent light source for a variety of applications in science, industry and defense. This unique capability provides ...
Vigil, Ricardo (Monterey, California: Naval Postgraduate School, 2014-09);In 1979,W. B. Colson and S. K. Ride proposed a new kind of electron accelerator using a uniform magnetic field in combination with a circularly-polarized laser field. A key concept is to couple the oscillating electric ...
Clark, Darwin L. (Monterey, California. Naval Postgraduate School, 1992-03);The continuing development of the free electron laser (FEL) as a powerful and versatile source of coherent radiation steadily drives toward the goal of high efficiency and broad tenability at shorter wavelengths. New ...