Zobrazeno 1 - 10
of 118
pro vyhledávání: '"G. Rakowsky"'
Autor:
T. Tanabe, P.M. Stefan, Takashi Tanaka, Samuel Krinsky, X. Marechal, Hideo Kitamura, L. Solomon, G. Rakowsky
Publikováno v:
Review of Scientific Instruments. 69:18-24
An in-vacuum minipole (short period) insertion device has been developed in a collaboration between SPring-8 and the National Synchrotron Light Source (NSLS). The magnetic arrays were assembled, field measured, corrected, and vacuum tested by SPring-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8abd473bb44d6c497198085f59774c44
https://doi.org/10.1063/1.1148871
https://doi.org/10.1063/1.1148871
Publikováno v:
IEEE Journal of Quantum Electronics. 31:664-672
Simulated annealing provides an algorithm for arranging measured wiggler field errors to minimize a "cost function" characterizing errors in electron trajectories and other aspects of magnetic field quality. Rocketdyne has most recently demonstrated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93085b2cdfac27a141c421b8439fa70d
https://doi.org/10.1109/3.371941
https://doi.org/10.1109/3.371941
Publikováno v:
Diamond Light Source Proceedings. 1
Both in-vacuum undulators (IVUs) and cryogenic permanent magnet undulators (CPMUs), each important to third-generation light sources, are best characterized in their operating environment. To create a precision Hall probe map of an IVU/CPMU (IVU here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d94e5244632a1e2d9aed862ed4ac156
https://doi.org/10.1017/s2044820111000104
https://doi.org/10.1017/s2044820111000104
Publikováno v:
IEEE Journal of Quantum Electronics. 27:2598-2604
Rocketdyne is assembling a high-brightness 78 MeV free-electron laser (FEL). The authors analyze the performance expected of this laser using the Rocketdyne three-dimensional simulation code FELOPT. An outline of the device, description of the code,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::458c4057a46a6cd840e08ed426272f28
https://doi.org/10.1109/3.104138
https://doi.org/10.1109/3.104138
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 296:607-610
Numerical simulations are used to demonstrate that large statistical variations in peak spontaneous emission and small-signal gain are obtained for FEL wigglers with the same rms field error, but different error distributions. Results demonstrate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afb78dcb48f16924fc6460849f799606
https://doi.org/10.1016/0168-9002(90)91275-g
https://doi.org/10.1016/0168-9002(90)91275-g
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 296:603-606
The degradation of FEL performance by field errors can be greatly mitigated in a pure permanent-magnet undulator by appropriate ordering of magnets. Monte Carlo techniques have been used to obtain such optimized ordering for various systems. The resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbc20c37cfdb75c2cac73bd843fd2f62
https://doi.org/10.1016/0168-9002(90)91274-f
https://doi.org/10.1016/0168-9002(90)91274-f
Publikováno v:
Proceedings of the 2005 Particle Accelerator Conference.
This paper describes plans to upgrade insertion devices (IDs) at the National Synchrotron Light Source (NSLS), Brookhaven National Laboratory, U.S.A. The aging wiggler (W120) at X25 is being replaced by a 1 m long in-vacuum mini-gap undulator (MGU-X2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc6ef89e92deeee465fad8af344cd5eb
https://doi.org/10.1109/pac.2005.1590968
https://doi.org/10.1109/pac.2005.1590968
Publikováno v:
Proceedings of the Eleventh International Free Electron Laser Conference.
Pure permanent-magnet (PM) undulator designs that can match or exceed the on-axis field of PM hybrids are presented. Linearity and superposition of fields allows us to construct undulators with optimized performance for both FEL and synchrotron-radia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88d29549feb3091029bbd14b659e495
https://doi.org/10.1109/fel.1989.716074
https://doi.org/10.1109/fel.1989.716074
Publikováno v:
Proceedings of the Eleventh International Free Electron Laser Conference.
The quality of a wiggler field is often characterized by its rms deviation from the ideal. This deviation, however, is a poor predictor of actual system performance, particularly in light of the possibilities for optimized error ordering. An alternat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb1c0a908ebe188b8ab4dd0c1983f1bc
https://doi.org/10.1109/fel.1989.716070
https://doi.org/10.1109/fel.1989.716070
Publikováno v:
AIP Conference Proceedings.
An in‐vacuum short‐period mini‐gap undulator (MGU) has recently been installed within the National Synchrotron Light Source (NSLS) X13 straight‐section. The MGU is a hybrid design, consisting of NdFeB permanent magnets and vanadium permendur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11f7f1a0b8f86d52cdd77adbfe73ecbf
https://doi.org/10.1063/1.1757786
https://doi.org/10.1063/1.1757786