BIW2012 - List of Authors (Bacha, B.)

Paper	Title	Page
MOPG004	NSLS-II Beam Intensity Measurement	26
	D. Padrazo, B. Bacha, Y. Hu, I. Pinayev, G.M. Wang BNL, Upton, Long Island, New York, USA
	Beam intensity, also named beam charge or beam current, is one of the most important beam parameters for synchrotron light sources. At NSLS-II, there are at least two types of beam intensity monitors including Bergoz ICT, and Bergoz NPCT. The requirements of beam intensity measurements and the distribution of beam monitors are described. The EPICS-based controls and data acquisition systems for all intensity monitors are presented.

MOPG022	NSLS2 Beam Position Monitor Calibration	77
	W.X. Cheng, B. Bacha, O. Singh BNL, Upton, Long Island, New York, USA
	To get accurate beam position measurements along the accelerator complex, beam position monitor (BPM) sensitivity and electric offset need to be calibrated. A good calibration is essential for day one commissioning and large beam offset measurements. For various type of BPMs used in NSLS2, the sensitivity curves were calculated and fitting by high order polynomial fit. Fitting errors are typically less than 50um. BPM electric offsets are measured using four port network analyzer. These offset values will supply a good reference for beam based alignment.

Paper

Title

Page

NSLS-II Beam Intensity Measurement

26

D. Padrazo, B. Bacha, Y. Hu, I. Pinayev, G.M. Wang
BNL, Upton, Long Island, New York, USA

Beam intensity, also named beam charge or beam current, is one of the most important beam parameters for synchrotron light sources. At NSLS-II, there are at least two types of beam intensity monitors including Bergoz ICT, and Bergoz NPCT. The requirements of beam intensity measurements and the distribution of beam monitors are described. The EPICS-based controls and data acquisition systems for all intensity monitors are presented.

MOPG022

NSLS2 Beam Position Monitor Calibration

77

W.X. Cheng, B. Bacha, O. Singh
BNL, Upton, Long Island, New York, USA

To get accurate beam position measurements along the accelerator complex, beam position monitor (BPM) sensitivity and electric offset need to be calibrated. A good calibration is essential for day one commissioning and large beam offset measurements. For various type of BPMs used in NSLS2, the sensitivity curves were calculated and fitting by high order polynomial fit. Fitting errors are typically less than 50um. BPM electric offsets are measured using four port network analyzer. These offset values will supply a good reference for beam based alignment.