PCaPAC2014 - List of Keywords (emittance)

Paper	Title	Other Keywords	Page
WPO009	An Optics-Suite and -Server for the European XFEL	optics, controls, interface, software	52
	S.M. Meykopff DESY, Hamburg, Germany
	A software library for optics calculations was developed for the European XFEL Project. The calculations will be done with ELEGANT as the backend. The new software is available as a shared library as well as an own standing server in the control system. It creates and analyses all input and output files and allows to use different optics at the same time. The lattice is derived from an EXCEL file which is also used for machine installation purposes. The access from the control system uses a TINE interface; a MATLAB object offers an easy programming interface.
	Poster WPO009 [0.417 MB]

FPO031	Power Supplies Transient Recorders for Post-Mortem Analysis of BPM Orbit Dumps at Petra-III	controls, synchrotron, power-supply, operation	225
	G.K. Sahoo, P.K. Bartkiewicz, A. Kling, B. Pawlowski DESY, Hamburg, Germany
	PETRA-III is a 3rd generation synchrotron light source dedicated to users at 14 beam lines with 30 instruments. The storage ring is presently modified to add 12 beam lines. PETRA III was operated with several filling modes such as 40, 60, 480 and 960 bunches with a total current of 100mA at electron beam energy of 6 GeV. The horizontal beam emittance is 1 nmrad while a coupling of 1% amounts to a vertical emittance of 10 pmrad. During a user run Machine Protection System (MPS) may trigger an unscheduled beam dump if transients in the current of magnet power supplies are detected which are above permissible limits. The trigger of MPS stops the ring buffers of the 226 BPM electronics where the last 16384 turns just before the dump are stored. These data and transient recorder data of Magnet Power Supply Controllers are available for a post-mortem analysis. Here we discuss in detail the functionality of a Java GUI used to investigate the transient behavior of the differences between set and readout values of different power supplies to find out the responsible power supply that might have led to emittance growth, fluctuations in orbits or beam dumps seen in a post-mortem analysis.

Paper

Title

Other Keywords

Page

WPO009

An Optics-Suite and -Server for the European XFEL

optics, controls, interface, software

52

S.M. Meykopff
DESY, Hamburg, Germany

A software library for optics calculations was developed for the European XFEL Project. The calculations will be done with ELEGANT as the backend. The new software is available as a shared library as well as an own standing server in the control system. It creates and analyses all input and output files and allows to use different optics at the same time. The lattice is derived from an EXCEL file which is also used for machine installation purposes. The access from the control system uses a TINE interface; a MATLAB object offers an easy programming interface.

Poster WPO009 [0.417 MB]

FPO031

Power Supplies Transient Recorders for Post-Mortem Analysis of BPM Orbit Dumps at Petra-III

controls, synchrotron, power-supply, operation

225

G.K. Sahoo, P.K. Bartkiewicz, A. Kling, B. Pawlowski
DESY, Hamburg, Germany

PETRA-III is a 3rd generation synchrotron light source dedicated to users at 14 beam lines with 30 instruments. The storage ring is presently modified to add 12 beam lines. PETRA III was operated with several filling modes such as 40, 60, 480 and 960 bunches with a total current of 100mA at electron beam energy of 6 GeV. The horizontal beam emittance is 1 nmrad while a coupling of 1% amounts to a vertical emittance of 10 pmrad. During a user run Machine Protection System (MPS) may trigger an unscheduled beam dump if transients in the current of magnet power supplies are detected which are above permissible limits. The trigger of MPS stops the ring buffers of the 226 BPM electronics where the last 16384 turns just before the dump are stored. These data and transient recorder data of Magnet Power Supply Controllers are available for a post-mortem analysis. Here we discuss in detail the functionality of a Java GUI used to investigate the transient behavior of the differences between set and readout values of different power supplies to find out the responsible power supply that might have led to emittance growth, fluctuations in orbits or beam dumps seen in a post-mortem analysis.