IPAC2016 - List of Authors (Hinder, F.)

Paper	Title	Page
TUPMR026	First Experience of Applying Loco for Optics at Cosy	1294
	D. Ji IHEP, Beijing, People's Republic of China M. Bai, Y. Dutheil, F. Hinder, B. Lorentz, M. Simon, C. Weidemann FZJ, Jülich, Germany
	COSY is a cooler synchrotron designed for internal target hadron physics experiments, equipped with both electron cooling system and stochastic cooling system. During the past couple of years, COSY has been evolved into an ideal test facility for accelerator technology development as well as detector development for the Facility of Anti-proton and Ion Research at Darmstadt (FAIR). In addition, COSY has been the test ground for exploring the feasibility of a storage ring based Electric Dipole Moment (EDM) measurement. The proposed precursor experiment of a direct measurement of the EDM of the deuteron at COSY using an RF wien filter by the Jülich Electric Dipole moment Investigation (JEDI) requests significant improvement of beam based measurements as well as beam control. In this paper, first results of measured linear optics based on AT-LOCO are reported. Simulation studies are also discussed.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMR026
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPMB009	Model Driven Machine Improvement of COSY Based on ORM Data	3240
	C. Weidemann, M. Bai, F. Hinder, B. Lorentz FZJ, Jülich, Germany
	The COoler SYnchrotron in Jülich accelerates and stores unpolarized and polarized proton or deuteron beams in the momentum range between 0.3 GeV/c and 3.65 GeV/c [,]. This, in combination with its diverse capabilities of phase space cooling and the flexibility of the lattice with respect to ion-optical settings makes COSY an ideal test facility for accelerator technology development. High demands on beam control and beam based measurements have to be fulfilled for future experiments such as the proposed precursor experiment for a direct measurement of the electric dipole moment of the deuteron (see [] and references within). The analysis of measured orbit response matrices (ORM), which com- prise the focussing structure of the ring, allows for a better understand- ing of machine imperfections such as gradient errors and misalignments of quadrupole magnets. This contribution presents the development of a MAD-X based LOCO (Linear Optics from Closed Orbits) algorithm [*] in a C++ program aiming to calibrate and correct linear optics as well as improving beam control at COSY. R. Maier, NIM A 390, 1 (1997). S.A. Martin et al., NIM A 236, 249-255 (1985). * D. Eversmann et al. [JEDI Collaboration], Phys. Rev. Lett. 115, 094801 (2015). **** J. Safranek, NIM A 388, 27 (1997).
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB009
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

First Experience of Applying Loco for Optics at Cosy

1294

D. Ji
IHEP, Beijing, People's Republic of China
M. Bai, Y. Dutheil, F. Hinder, B. Lorentz, M. Simon, C. Weidemann
FZJ, Jülich, Germany

COSY is a cooler synchrotron designed for internal target hadron physics experiments, equipped with both electron cooling system and stochastic cooling system. During the past couple of years, COSY has been evolved into an ideal test facility for accelerator technology development as well as detector development for the Facility of Anti-proton and Ion Research at Darmstadt (FAIR). In addition, COSY has been the test ground for exploring the feasibility of a storage ring based Electric Dipole Moment (EDM) measurement. The proposed precursor experiment of a direct measurement of the EDM of the deuteron at COSY using an RF wien filter by the Jülich Electric Dipole moment Investigation (JEDI) requests significant improvement of beam based measurements as well as beam control. In this paper, first results of measured linear optics based on AT-LOCO are reported. Simulation studies are also discussed.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMR026

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPMB009

Model Driven Machine Improvement of COSY Based on ORM Data

3240

C. Weidemann, M. Bai, F. Hinder, B. Lorentz
FZJ, Jülich, Germany

The COoler SYnchrotron in Jülich accelerates and stores unpolarized and polarized proton or deuteron beams in the momentum range between 0.3 GeV/c and 3.65 GeV/c [*,**]. This, in combination with its diverse capabilities of phase space cooling and the flexibility of the lattice with respect to ion-optical settings makes COSY an ideal test facility for accelerator technology development. High demands on beam control and beam based measurements have to be fulfilled for future experiments such as the proposed precursor experiment for a direct measurement of the electric dipole moment of the deuteron (see [***] and references within). The analysis of measured orbit response matrices (ORM), which com- prise the focussing structure of the ring, allows for a better understand- ing of machine imperfections such as gradient errors and misalignments of quadrupole magnets. This contribution presents the development of a MAD-X based LOCO (Linear Optics from Closed Orbits) algorithm [****] in a C++ program aiming to calibrate and correct linear optics as well as improving beam control at COSY.
* R. Maier, NIM A 390, 1 (1997).
** S.A. Martin et al., NIM A 236, 249-255 (1985).
*** D. Eversmann et al. [JEDI Collaboration], Phys. Rev. Lett. 115, 094801 (2015).
**** J. Safranek, NIM A 388, 27 (1997).

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB009

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)