Design and test of a model pole for the ALS U5.0 undulator

Author

Hassenzahl, W.V. ; Hoyer, E. ; Savoy, R.

Author_Institution

Lawrence Berkeley Lab., California Univ., CA, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

2736

Abstract

The ALS (Advanced Light Source) insertion devices must meet very tight requirements in terms of field quality and field strength. Even though the ability to calculate the performance of a hybrid insertion device has improved considerably over the past few years, a model pole was assembled to test the ALS U5.0 undulator geometry and to verify the calculations. The model pole consists of a half period of the periodic structure of the insertion device, with mirror plates at the midplane and at the zero-field, half-period planes. A Hall probe was used to measure the vertical component of the field near the midplane of the model as a function of gap and transverse position.<>

Keywords

X-ray production; electron accelerators; magnetic fields; permanent magnets; storage rings; synchrotron radiation; wigglers; ALS; Advanced Light Source; Hall probe; U5.0 undulator geometry; insertion devices; magnetic fields; model pole; permanent magnets; vertical component; Assembly; Geometry; Hall effect devices; Light sources; Mirrors; Periodic structures; Position measurement; Solid modeling; Testing; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.165087

Filename

165087