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Betatron motion and optical deflection in free electron lasers (open access)

Betatron motion and optical deflection in free electron lasers

Transverse displacement of the electron beam at input to the wiggler induces betatron oscillation, imparting a sinusoidal transverse displacement to the gain medium seen by the optical beam. As the light propagates down this ''rippled'' medium it is guided by the dispersion, thereby acquiring some transverse sinusoidal displacement. At output from the wiggler the optical beam in general has acquired some transverse component of velocity, that is, it propagates off-axis. As the e-beam displacement fluctuates statistically with every pulse, the optical output direction jitters around the nominal axis. The jitters is estimated with a model that includes off-axis optical propagation through a ''rippled'' gain medium but neglects feedback of the off-axis light on the e-beam. The model is solved in perturbation theory. The jitter is calculated at the final aperture of the optical system beyond the wiggler. 8 refs., 13 figs.
Date: October 6, 1985
Creator: Karr, T.J.
System: The UNT Digital Library
Texas Broilers: For Week Ending November 2, 1985 (open access)

Texas Broilers: For Week Ending November 2, 1985

Weekly report of the Texas Crop and Livestock Reporting Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending September 28 to the week ending November 2, during 1984 and 1985 for broiler eggs set, chicks hatched, and chicks placed.
Date: November 6, 1985
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History
Texas Broilers: For Week Ending March 2, 1985 (open access)

Texas Broilers: For Week Ending March 2, 1985

Weekly report of the Texas Crop and Livestock Reporting Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending January 26 to the week ending March 2, during 1984 and 1985 for broiler eggs set, chicks hatched, and chicks placed.
Date: March 6, 1985
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History
Texas Broilers: For Week Ending February 2, 1985 (open access)

Texas Broilers: For Week Ending February 2, 1985

Weekly report of the Texas Crop and Livestock Reporting Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending December 29 to the week ending February 2, during 1984 and 1985 for broiler eggs set, chicks hatched, and chicks placed.
Date: February 6, 1985
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History