PAC2013 - List of Authors (Smith, M.L.)

Paper

Title

Page

APS Superconducting Undulator Beam Commissioning Results

703

K.C. Harkay, L.E. Boon, M. Borland, G. Decker, R.J. Dejus, J.C. Dooling, C.L. Doose, L. Emery, J. Gagliano, E. Gluskin, Q.B. Hasse, Y. Ivanyushenkov, M. Kasa, J.C. Lang, D. Robinson, V. Sajaev, K.M. Schroeder, N. Sereno, Y. Shiroyanagi, D. Skiadopoulos, M.L. Smith, E. Trakhtenberg, A. Xiao, A. Zholents
ANL, Argonne, USA
L.E. Boon
Purdue University, West Lafayette, Indiana, USA

Funding: Work supported by U. S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
The first prototype superconducting undulator (SCU0) was successfully installed and commissioned at the Advanced Photon Source (APS) and is delivering photons for user science. All the requirements before operating the SCU0 in the storage ring were satisfied during a short but detailed beam commissioning. The cryogenic system performed very well in the presence of the beam. The total beam-induced heat load on the SCU0 agreed well with the predictions, and the SCU0 is protected from excessive heat loads through a combination of orbit control and SCU0 alignment. When powered, the field integral measured with the beam agreed well with the magnet measurements. An induced quench caused very little beam motion, and did not cause loss of the beam. The device was found to quench during unintentional beam dumps, but quench recovery is transparent to storage ring operation. There were no beam chamber vacuum pressure issues and no negative effect observed on the beam. Finally, the SCU0 was operated well beyond its design requirements, and no significant issues were identified. The beam commissioning results are described in this paper.

Slides WEOAA3 [2.442 MB]

WEPSM11

The Intermediate-Energy X-ray (IEX) Undulator Commissioning Results

1070

A. Xiao, M. Abliz, B. Deriy, M.S. Jaski, M.L. Smith, I. Vasserman, J.Z. Xu
ANL, Argonne, USA

Funding: Work supported by the U. S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
Strong beam perturbation from the intermediate-energy x-ray (IEX) undulator operation has been expected from the beginning. This paper describes our efforts including the initial magnet design, field measurements and compensation, special considerations of power supplies and the control system, and the final commissioning results with beam. Perturbations are well within the specified limits, and the IEX was made ready for user operation in less than six months.

Paper	Title	Page
WEOAA3	APS Superconducting Undulator Beam Commissioning Results	703
	K.C. Harkay, L.E. Boon, M. Borland, G. Decker, R.J. Dejus, J.C. Dooling, C.L. Doose, L. Emery, J. Gagliano, E. Gluskin, Q.B. Hasse, Y. Ivanyushenkov, M. Kasa, J.C. Lang, D. Robinson, V. Sajaev, K.M. Schroeder, N. Sereno, Y. Shiroyanagi, D. Skiadopoulos, M.L. Smith, E. Trakhtenberg, A. Xiao, A. Zholents ANL, Argonne, USA L.E. Boon Purdue University, West Lafayette, Indiana, USA
	Funding: Work supported by U. S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. The first prototype superconducting undulator (SCU0) was successfully installed and commissioned at the Advanced Photon Source (APS) and is delivering photons for user science. All the requirements before operating the SCU0 in the storage ring were satisfied during a short but detailed beam commissioning. The cryogenic system performed very well in the presence of the beam. The total beam-induced heat load on the SCU0 agreed well with the predictions, and the SCU0 is protected from excessive heat loads through a combination of orbit control and SCU0 alignment. When powered, the field integral measured with the beam agreed well with the magnet measurements. An induced quench caused very little beam motion, and did not cause loss of the beam. The device was found to quench during unintentional beam dumps, but quench recovery is transparent to storage ring operation. There were no beam chamber vacuum pressure issues and no negative effect observed on the beam. Finally, the SCU0 was operated well beyond its design requirements, and no significant issues were identified. The beam commissioning results are described in this paper.
	Slides WEOAA3 [2.442 MB]

WEPSM11	The Intermediate-Energy X-ray (IEX) Undulator Commissioning Results	1070
	A. Xiao, M. Abliz, B. Deriy, M.S. Jaski, M.L. Smith, I. Vasserman, J.Z. Xu ANL, Argonne, USA
	Funding: Work supported by the U. S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. Strong beam perturbation from the intermediate-energy x-ray (IEX) undulator operation has been expected from the beginning. This paper describes our efforts including the initial magnet design, field measurements and compensation, special considerations of power supplies and the control system, and the final commissioning results with beam. Perturbations are well within the specified limits, and the IEX was made ready for user operation in less than six months.