Astigmatic effects in linearly polarized, tapered-wiggler, tree-electron lasers. COVER, R. A.; BHOWMIK, A. (Rockwell International Corp., Rocketdyne Div., Canoga Park, CA) IN: Lasers '83; Proceedings of the International Conference, San Francisco, CA, December 12—16, 1983 (ASS—28826 12-36). McLean, VA, STS Press, 1985, p. 263-270. 7 Refs. L a n g u a g e: E n g 1 i s h . Country of Origin: United States. Country of Publication: U n i t e d S t a t e s Document Type: CONFERENCE PAPER Most documents avail ab1e from AIAA Techni ca1 Library Journal Announcement: IAA8512 The energy extraction efficiency of linearly polarized, tapered-wigg1er, free - e1ectron 1asers is examined for astigmatic elliptical electron and optical beams. The results are compared with those using cy1indrica11y symmetric beams in the low-gain 1imit. The resu11s i n d icate that astigmatic optical beams can be? employed to improve extraction efficiency. In low-gain systems it is not clear that the introduction of astigmatism into the optical beam provides a practical method of significantly increasing the footprint of the optical beam on a mirror- surface and thus providing a solution to problems of mirror 1oading. (Author) Source of Abstract (Subfile): AIAA/IIS Keywords: *ASTIGNATISM; *ENERGY CONVERSION EFFICIENCY; *FREE ELECTRON LASERS; *LASER OUTPUTS; *LINEAR POLARIZATION; ELECTRON BEAMS; ELLIPTICITY; MIRRORS; NORMAL DENSITY FUNCTIONS; POWER GAIN; WIGGLER MAGNETS Subject Classification: 7536 Lasers & Masers (1975-) High power pulsed accelerators with potential industrial appli cati ons. BUTTRAM, M. T.; PRESTWICH, K. R. Sandia Labs., Albuquerque, N. Mex. Corp. Sourc e Code: SB899064 1984. 17P. Presentation Note: Presented at the 8th Conf, on the Applications of Accelerators in Res. and Industry, Denton, fex., 12 Nov. 1984. Report No.: DE85-001710; SAND-84-14780; CONF-841117-7 Contract No.: DE-AC04-76DP-00789 L a n g u a g e: E n g 1 is h . Country of Origin: United States. Country of Publication: United States Document Type: CONFERENCE PAPER Most documents available from AIAA Technical LibraryOther Availability: NTIS HC A02/MF AOI Journal Announcement: STAR8511 Radiation processing sources fall into two categories, electron beams and nuclear decay products (gamma rays). Applications requiring high average power ( 100 kW) , high dose rate, or limited deposition depth are performed with electrons. Typically, the? electron sources that are used for radiation processing are either de accelerators or linacs with peak powers in the 50 to 200 kW regime. Recent
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