Design of an electromagnetic elliptical wiggler for ELETTRA

Walker, R.P.; Bulfone, D.; Diviacco, B.; Jark, W.; Michelini, Pablo Navarrete; Tosi, L.; Visintini, Roberto; Ingold, G.; Schäfers, F.; Scheer, M.; Wustefeld, G.; Werin, Sverker

doi:10.1109/pac.1997.753264

Cited by 10 publications

(9 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Progress is being made with the compensation of residual closed orbit distortions of the electromagnetic elliptical wiggler (EEW) [4]. A dedicated digital feed-forward system compensates for the residual magnetic field errors by correcting the beam orbit with four coils (two per plane) powered by four independent power supplies.…”

Section: Insertion Devicesmentioning

confidence: 99%

ELETTRA status and development plans

Bocchetta

Tazzari²,

Walker³

1999

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Insertion Devicesmentioning

confidence: 99%

ELETTRA status and development plans

Bocchetta

Tazzari²,

Walker³

1999

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

Self Cite

View full text Add to dashboard Cite

show abstract

“…The ®gure of merit for spectral performance is the r.m.s. phase error (Walker, 1993), which can be determined from magnetic measurements. The APS undulator speci®cations called for 8 phase error, and the undulator vendor more than met this demanding requirement.…”

Section: Spectral Performancementioning

confidence: 99%

“…The magnetic measurements and tuning will be performed at the APS. A similar device is now being constructed for ELETTRA (Walker et al, 1997).…”

Section: E®m Gluskinmentioning

confidence: 99%

APS Insertion Devices: Recent Developments and Results

Gluskin

1998

J Synchrotron Radiat

View full text Add to dashboard Cite

The Advanced Photon Source (APS) now has a total of 23 insertion devices (IDs). Over two-thirds of them are installed on the storage ring. The installed devices include 18, 27 and 55 mm-period undulators; an 85 mm-period wiggler; a 16 cm-period elliptical multipole wiggler; and many 33 mmperiod undulators. Most of the IDs occupy storage-ring straight sections equipped with 8 mm vertical-aperture vacuum chambers. All of the IDs were measured magnetically at the APS and, in most cases, underwent a ®nal magnetic tuning in order to minimize variation in the various integrals of the ®eld through the ID over the full gap range. Special shimming techniques to correct magnetic ®eld parameters in appropriate gap-dependent ways were developed and applied. Measurements of the closed-orbit distortion as a function of the ID gap variation have been completed, and results are in a good agreement with magnetic measurements. Spectral diagnostics of the ID radiation, including measurements of the absolute spectral¯ux, brilliance and polarization, show excellent agreement between calculated and measured results. Studies of the sensitivity of IDs to radiation exposure and measurements of the dose rate received by the IDs are in progress.

show abstract

“…These include pure REPM systems [26,27] which provide continuous or near CW elliptical polarization and electromagnet and hybrid combinations that are capable of polarization modulation of order 100 Hz or better [28][29][30].…”

Section: Specialty Devicesmentioning

confidence: 99%

Overview of hot topics in insertion device design

Robinson

Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)

View full text Add to dashboard Cite

Emphasis in insertion devices (undulators and wigglers) is evolving. Conventional designs account for the majority of devices in use as synchrotron radiation (SR) or freeelectron laser (FEL) sources, but more is being demanded with each succeeding application. Totally passive field compensation, gap independence, and the perfecting of phase and spectral properties are areas of major interest. However, the shift toward specialty designs is increasingly important. Designs are tailored to achieve specific radiation characteristics. These range from SR sources with time-dependent polarization capabilities to long devices optimized for FEL operation in the X-ray regime. Strong focusing and other beam dynamics related characteristics are becoming extremely important for the next generation of FEL devices. As electron beam quality continues to increase, small-gap, small period, and unconventional field profiles are becoming necessary for compact sources. These areas of increased interest are examined.

show abstract

Design of an electromagnetic elliptical wiggler for ELETTRA

Cited by 10 publications

References 3 publications

ELETTRA status and development plans

ELETTRA status and development plans

APS Insertion Devices: Recent Developments and Results

Overview of hot topics in insertion device design

Contact Info

Product

Resources

About