Author:
Huang Y.S.,Li X.Y.,Li Y.H.,Lu H.H.,Yang Y.W.,Chen W.,Li Z.Q.,Zhao S.T.,Sun Y.J.,Zhang L.,Sun S.C.,Gong K.Y.
Abstract
Abstract
A merged four-row APPLE-Knot undulator has been manufactured
at the High Energy Photon Source(HEPS) and the magnetic field
tunning has been completed. Inclined magnetization magnetic blocks
are used in this undulator in large scale, new skills are used in
magnetic blocks' manufacturing and assembling. Magnet field tunning
is conducted by combination of various methods and resulted in a
satisfactory photon performance. The practical mechanical
deformation of aluminum girder has been measured and compared with
theoretical calculation, results indicate a significant discrepancy
between these two data, the reasons causing this discrepancy have
also been analyzed. The merged four-row APPLE-Knot undulator at HEPS
holds significant reference value for its uniqueness and
specificity.
Subject
Mathematical Physics,Instrumentation