BIW2012 - List of Authors (Singh, O.)

Paper	Title	Page
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.

TUPG019	NSLS-II Injector System Diagnostics Update for LINAC Commissioning	173
	D. Padrazo, R.P. Fliller, Y. Hu, B.N. Kosciuk, I. Pinayev, S. Seletskiy, T.V. Shaftan, O. Singh BNL, Upton, Long Island, New York, USA
	The NSLS-II Injector System Diagnostics will provide adequate instrumentation in the LINAC, and LTB (LINAC To Booster), to perform staged commissioning of NSLS-II LINAC. This instrumentation will provide sufficient diagnostics to determine bunch charge, length, transverse size, position, and beam losses. The LTB will include key instruments to be used for beam commissioning and tune-up, particularly, BPM, Beam Dumps / Faraday Cup, ICT, FCT, Flags, and Energy Slit. Measurements of beam charge, bunch train, bunch charge, energy jitter, emittance, and energy spread, as well as measurements for beam current, bunch train pattern, tune and chromaticity can be achieved. This paper will detail the implementation and status of these diagnostics components for the NSLS-II injector system.

WECP02	NSLS-II RF Beam Position Monitor Update	238
	K. Vetter, J.H. De Long, A.J. Della Penna, K. Ha, B.N. Kosciuk, J. Mead, I. Pinayev, O. Singh, Y. Tian BNL, Upton, Long Island, New York, USA G.J. Portmann LBNL, Berkeley, California, USA J.J. Sebek SLAC, Menlo Park, California, USA
	The NSLS-II RF BPM development was undertaken to create a state-of-the-art BPM with the goal of exceeding capabilities and performance that has been demonstrated to date. The architecture of the RF BPM has been carefully conceived to provide a robust design with substantial flexibility to serve as a platform for other systems, one of which is the Cell Controller, which is used to process BPM data for fast orbit feedback.

Paper

Title

Page

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.

TUPG019

NSLS-II Injector System Diagnostics Update for LINAC Commissioning

173

D. Padrazo, R.P. Fliller, Y. Hu, B.N. Kosciuk, I. Pinayev, S. Seletskiy, T.V. Shaftan, O. Singh
BNL, Upton, Long Island, New York, USA

The NSLS-II Injector System Diagnostics will provide adequate instrumentation in the LINAC, and LTB (LINAC To Booster), to perform staged commissioning of NSLS-II LINAC. This instrumentation will provide sufficient diagnostics to determine bunch charge, length, transverse size, position, and beam losses. The LTB will include key instruments to be used for beam commissioning and tune-up, particularly, BPM, Beam Dumps / Faraday Cup, ICT, FCT, Flags, and Energy Slit. Measurements of beam charge, bunch train, bunch charge, energy jitter, emittance, and energy spread, as well as measurements for beam current, bunch train pattern, tune and chromaticity can be achieved. This paper will detail the implementation and status of these diagnostics components for the NSLS-II injector system.

WECP02

NSLS-II RF Beam Position Monitor Update

238

K. Vetter, J.H. De Long, A.J. Della Penna, K. Ha, B.N. Kosciuk, J. Mead, I. Pinayev, O. Singh, Y. Tian
BNL, Upton, Long Island, New York, USA
G.J. Portmann
LBNL, Berkeley, California, USA
J.J. Sebek
SLAC, Menlo Park, California, USA

The NSLS-II RF BPM development was undertaken to create a state-of-the-art BPM with the goal of exceeding capabilities and performance that has been demonstrated to date. The architecture of the RF BPM has been carefully conceived to provide a robust design with substantial flexibility to serve as a platform for other systems, one of which is the Cell Controller, which is used to process BPM data for fast orbit feedback.