IBIC2014 - List of Keywords (injection)

Paper	Title	Other Keywords	Page
MOIZB1	NSLS2 Diagnostic Systems Commissioning and Measurements	storage-ring, diagnostics, booster, electronics	16
	W.X. Cheng, B. Bacha, K. Ha, Y. Hu, M.A. Maggipinto, J. Mead, D. Padrazo, O. Singh, H. Xu BNL, Upton, Long Island, New York, USA
	As the newest and most advanced third generation light source, NSLS2 commissioning has started recently. A total of 50mA stored beam was achieved in the storage ring. Most of the diagnostic systems have been commissioned with beams and proved to be critical to the success of machine commissioning. This paper will present beam commissioning results of various diagnostic systems in the NSLS2 injector and storage ring, including profile monitors, current monitors, and position monitors. We will discuss some preliminary machine measurements as well, such as beam current and lifetime, tune, beam stability, filling pattern etc.
	Slides MOIZB1 [6.187 MB]
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MOPF02	RHIC-Style IPMs in the Brookhaven AGS	electron, detector, dipole, acceleration	39
	R. Connolly, W.C. Dawson, J.M. Fite, H. Huang, S.E. Jao, W. Meng, R.J. Michnoff, S. Tepikian BNL, Upton, Long Island, New York, USA
	Funding: Work supported by U.S. Department of Energy. Beam profiles in the two storage rings of the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Lab (BNL) are measured with ionization profile monitors (IPMs). An IPM measures the distribution of electrons produced by beam ionization of background gas. These detectors have been developed at BNL in a program that began in 1996. The current detectors are a design from 2009. During the 2012 shutdown we refurbished the 2009 prototype detector and installed it in the Alternating-Gradient Synchrotron (AGS) for horizontal profiles. The commissioning tests were successful and in 2013 we built a new IPM for vertical profiles. In addition we placed coils on the backlegs of the permanent-magnet dipoles for beta-function measurements. This paper describes the AGS IPMs and shows data from the detector commissioning.
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MOPF07	Construction and Operational Performance of a Horizontally Adjustable Beam Profile Monitor at NSLS-II	storage-ring, septum, controls, vacuum	55
	B.N. Kosciuk, A. Blednykh, S. Seletskiy BNL, Upton, Long Island, New York, USA
	The NSLS-II Synchrotron Light Source is a 3 GeV electron storage ring currently in the early stages of commissioning at Brookhaven National Laboratory. In order to observe the electron beam cross section in the injection region, a specially designed, horizontally adjustable beam profile monitor was installed at the downstream end of the injection septum. It allows the profiles of the injected, bumped and single turn beam to be viewed and measured. In this presentation, we discuss the final design, construction challenges, and operational performance of this novel device.
	Poster MOPF07 [0.953 MB]
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MOPF30	Diagnostics of the TPS Booster Synchrotron for Beam Commissioning	booster, synchrotron, EPICS, radiation	114
	K.T. Hsu, J. Chen, Y.-S. Cheng, P.C. Chiu, S.Y. Hsu, K.H. Hu, C.H. Huang, C.H. Kuo, D. Lee, C.Y. Liao, C.Y. Wu NSRRC, Hsinchu, Taiwan
	Booster synchrotron for the Taiwan photon source project is in commissioning. Diagnostics which consist of screen monitors, intensity monitors, beam position monitors, tune monitors, visible light synchrotron radiation monitors and radiation-sensing field-effect transistors are integrated with accelerator control system. Integration and functionality check were done recently. Details of these diagnostics and preliminary test results will be summarized in this report.
	Poster MOPF30 [1.036 MB]
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MOPD21	Bunch Pattern Measurement via Single Photon Counting at SPEAR3	timing, photon, controls, storage-ring	195
	W.J. Corbett, W.Y. Mok, K. Tian SLAC, Menlo Park, California, USA
	SPEAR3 is a 3GeV storage ring x-ray source that provides up to 500mA circulating beam current in top-up mode. Charge injection occurs on a 5 minute time schedule with the booster synchrotron delivering on-demand single-bunch pulses at 10Hz. In recent years the synchrotron radiation user program has moved in the direction of laser/x-ray pump-probe experiments which utilize a single timing ‘probe’ bunch isolated by 50ns dark space ahead and behind the bunch. In order to quantify bunch purity in adjacent buckets, a time-correlated single-photon counting system has been tested. By monitoring the bunch pattern, is it possible to evaluate when the x-ray probe bunch is sufficiently isolated, and pave the way for shot-by-shot charge injection that maintains all bunches at specified current levels.
	Poster MOPD21 [3.375 MB]
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TUPF15	First Results with the Prototypes of New BPM Electronics for the Booster of the ESRF	booster, electronics, Ethernet, storage-ring	351
	K.B. Scheidt ESRF, Grenoble, France
	The 25 year old BPM electronics of the ESRF’s Booster (200 MeV to 6 GeV, 300m, 75 BPM stations) are in process of replacement with new modern acquisition electronics. The design and development of this acquisition system was done in collaboration with the Instrumentation Technologies company and has resulted in a commercial product under the name Libera-Spark. It contains RF filtering & amplification electronics in front of 14 bit & 110 MHz ADCs for 4 channels, followed by a (Xilinx ZYNQ) System_on_Chip for all processing, that also includes the possibility of single bunch filtering directly on the ADC data. It is housed in a compact and robust module that is fully powered over the Ethernet connection and which facilitates its installation close to the BPM stations thereby avoiding long RF cabling. For simplicity and cost economic reasons this Spark is without PLL and adjustable RF attenuators since not needed for Booster BPM applications, but possible in elaborated versions for other applications. Two prototypes were fully tested with beam and results in terms of resolution & stability were assessed since delivery in January.
	Poster TUPF15 [4.855 MB]
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TUPF21	NSLS2 Visible Synchrotron Light Monitor Diagnostic Beamline Commissioning	synchrotron, storage-ring, radiation, dipole	369
	W.X. Cheng, B. Bacha, Y. Hu, O. Singh, H. Xu BNL, Upton, Long Island, New York, USA
	Visible Synchrotron Light Monitor (SLM) beamline has been designed and constructed at NSLS2 storage ring, to characterize the electron beam profile at various machine conditions. Due to carefully alignment, SLM beamline was able to see the first light even before beam circulating the ring. Besides a normal CCD camera to monitor the beam profile, streak camera and gated camera are used to measure the longitudinal and transverse profile to understand the beam dynamics. Measurement results from these cameras will be present in this paper.
	Poster TUPF21 [1.631 MB]
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TUPD22	Beam Loss Monitor at SuperKEKB	ion, electronics, positron, hardware	459
	H. Ikeda, M. Arinaga, J.W. Flanagan, H. Fukuma, M. Tobiyama KEK, Ibaraki, Japan
	We will use beam loss monitors for protection of the hardware of SuperKEKB against the unexpected sudden beam loss. The sensors are ion chambers and PIN photo-diodes. The loss monitor system gives an important trigger for the beam abort system. We can optimize the threshold of the abort trigger by checking the beam information at each abort moment. This paper explains the overall system of the SuperKEKB beam loss monitors including the damping ring.
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WEPD01	Observations of the Quadrupolar Oscillations at GSI SIS-18	pick-up, quadrupole, space-charge, emittance	629
	R. Singh, P. Forck, P. Kowina GSI, Darmstadt, Germany M. Gąsior CERN, Geneva, Switzerland W.F.O. Müller, J.A. Tsemo Kamga, T. Weiland TEMF, TU Darmstadt, Darmstadt, Germany
	An asymmetric capacitive pick-up was installed at GSI SIS-18 for determination of the turn-by-turn beam quadrupole moment. The pick-up geometry is simulated to estimate its sensitivity towards the beam dipole and quadrupole moments. Turn-by-turn quadrupole moment measurement allows to calculate the frequency of beam-size oscillations. Recent beam measurements using this pick-up show clear indications of the beam-size oscillations induced by the injection mismatch. In this contribution, we present these measurements and discuss their relevance for the direct determination of the incoherent space charge tune shift.
	Poster WEPD01 [3.589 MB]
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WEPD05	Improvement of Data Transfer Speed of Large Memory Monitors	Ethernet, EPICS, FPGA, operation	642
	M. Tobiyama KEK, Ibaraki, Japan
	Beam monitors with long memories will be widely used in SuperKEKB accelerators. Since the slow data transfer time of such devices usually limit the operational performance, improvement of the transfer rate is required. Two kind of devices, VME-based module and Ethernet-based modules has been developed. On the VME-based devices such as turn-by-turn position monitors for damping ring or long bunch oscillation monitors, MBLT and BLT transfer method has been implemented. For the Ethernet based system, the gated turn-by-turn monitors, SiTCP has been implemented on the FPGA and the EPICS device support for SiTCP has been developed. The improvement of the data transfer speed with the long-term reliability will be presented.
	Poster WEPD05 [1.791 MB]
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WEPD23	Commissioning of the ALBA Fast Orbit Feedback System	kicker, feedback, FPGA, controls	691
	A. Olmos, S. Blanch-Torné, G. Cuní, Z. Martí, J. Moldes, R. Petrocelli, S. Rubio-Manrique, X. Serra-Gallifa, D. Yépez ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	The ALBA Fast Orbit FeedBack system (FOFB) started its commissioning phase in September 2013, when all the required hardware was installed and the development of different controls for the feedback started. This report shows our experience tuning the different parameters to setup the system, together with vibration and beam noise measurements at different conditions. Finally, the present results and future steps for this system are described.
	Poster WEPD23 [0.902 MB]
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Paper

Title

Other Keywords

Page

MOIZB1

NSLS2 Diagnostic Systems Commissioning and Measurements

storage-ring, diagnostics, booster, electronics

16

W.X. Cheng, B. Bacha, K. Ha, Y. Hu, M.A. Maggipinto, J. Mead, D. Padrazo, O. Singh, H. Xu
BNL, Upton, Long Island, New York, USA

As the newest and most advanced third generation light source, NSLS2 commissioning has started recently. A total of 50mA stored beam was achieved in the storage ring. Most of the diagnostic systems have been commissioned with beams and proved to be critical to the success of machine commissioning. This paper will present beam commissioning results of various diagnostic systems in the NSLS2 injector and storage ring, including profile monitors, current monitors, and position monitors. We will discuss some preliminary machine measurements as well, such as beam current and lifetime, tune, beam stability, filling pattern etc.

Slides MOIZB1 [6.187 MB]

Export •

reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

MOPF02

RHIC-Style IPMs in the Brookhaven AGS

electron, detector, dipole, acceleration

39

R. Connolly, W.C. Dawson, J.M. Fite, H. Huang, S.E. Jao, W. Meng, R.J. Michnoff, S. Tepikian
BNL, Upton, Long Island, New York, USA

Funding: Work supported by U.S. Department of Energy.
Beam profiles in the two storage rings of the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Lab (BNL) are measured with ionization profile monitors (IPMs). An IPM measures the distribution of electrons produced by beam ionization of background gas. These detectors have been developed at BNL in a program that began in 1996. The current detectors are a design from 2009. During the 2012 shutdown we refurbished the 2009 prototype detector and installed it in the Alternating-Gradient Synchrotron (AGS) for horizontal profiles. The commissioning tests were successful and in 2013 we built a new IPM for vertical profiles. In addition we placed coils on the backlegs of the permanent-magnet dipoles for beta-function measurements. This paper describes the AGS IPMs and shows data from the detector commissioning.

Export •

reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

MOPF07

Construction and Operational Performance of a Horizontally Adjustable Beam Profile Monitor at NSLS-II

storage-ring, septum, controls, vacuum

55

B.N. Kosciuk, A. Blednykh, S. Seletskiy
BNL, Upton, Long Island, New York, USA

The NSLS-II Synchrotron Light Source is a 3 GeV electron storage ring currently in the early stages of commissioning at Brookhaven National Laboratory. In order to observe the electron beam cross section in the injection region, a specially designed, horizontally adjustable beam profile monitor was installed at the downstream end of the injection septum. It allows the profiles of the injected, bumped and single turn beam to be viewed and measured. In this presentation, we discuss the final design, construction challenges, and operational performance of this novel device.

Poster MOPF07 [0.953 MB]

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reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

MOPF30

Diagnostics of the TPS Booster Synchrotron for Beam Commissioning

booster, synchrotron, EPICS, radiation

114

K.T. Hsu, J. Chen, Y.-S. Cheng, P.C. Chiu, S.Y. Hsu, K.H. Hu, C.H. Huang, C.H. Kuo, D. Lee, C.Y. Liao, C.Y. Wu
NSRRC, Hsinchu, Taiwan

Booster synchrotron for the Taiwan photon source project is in commissioning. Diagnostics which consist of screen monitors, intensity monitors, beam position monitors, tune monitors, visible light synchrotron radiation monitors and radiation-sensing field-effect transistors are integrated with accelerator control system. Integration and functionality check were done recently. Details of these diagnostics and preliminary test results will be summarized in this report.

Poster MOPF30 [1.036 MB]

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MOPD21

Bunch Pattern Measurement via Single Photon Counting at SPEAR3

timing, photon, controls, storage-ring

195

W.J. Corbett, W.Y. Mok, K. Tian
SLAC, Menlo Park, California, USA

SPEAR3 is a 3GeV storage ring x-ray source that provides up to 500mA circulating beam current in top-up mode. Charge injection occurs on a 5 minute time schedule with the booster synchrotron delivering on-demand single-bunch pulses at 10Hz. In recent years the synchrotron radiation user program has moved in the direction of laser/x-ray pump-probe experiments which utilize a single timing ‘probe’ bunch isolated by 50ns dark space ahead and behind the bunch. In order to quantify bunch purity in adjacent buckets, a time-correlated single-photon counting system has been tested. By monitoring the bunch pattern, is it possible to evaluate when the x-ray probe bunch is sufficiently isolated, and pave the way for shot-by-shot charge injection that maintains all bunches at specified current levels.

Poster MOPD21 [3.375 MB]

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TUPF15

First Results with the Prototypes of New BPM Electronics for the Booster of the ESRF

booster, electronics, Ethernet, storage-ring

351

K.B. Scheidt
ESRF, Grenoble, France

The 25 year old BPM electronics of the ESRF’s Booster (200 MeV to 6 GeV, 300m, 75 BPM stations) are in process of replacement with new modern acquisition electronics. The design and development of this acquisition system was done in collaboration with the Instrumentation Technologies company and has resulted in a commercial product under the name Libera-Spark. It contains RF filtering & amplification electronics in front of 14 bit & 110 MHz ADCs for 4 channels, followed by a (Xilinx ZYNQ) System_on_Chip for all processing, that also includes the possibility of single bunch filtering directly on the ADC data. It is housed in a compact and robust module that is fully powered over the Ethernet connection and which facilitates its installation close to the BPM stations thereby avoiding long RF cabling. For simplicity and cost economic reasons this Spark is without PLL and adjustable RF attenuators since not needed for Booster BPM applications, but possible in elaborated versions for other applications. Two prototypes were fully tested with beam and results in terms of resolution & stability were assessed since delivery in January.

Poster TUPF15 [4.855 MB]

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TUPF21

NSLS2 Visible Synchrotron Light Monitor Diagnostic Beamline Commissioning

synchrotron, storage-ring, radiation, dipole

369

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

Visible Synchrotron Light Monitor (SLM) beamline has been designed and constructed at NSLS2 storage ring, to characterize the electron beam profile at various machine conditions. Due to carefully alignment, SLM beamline was able to see the first light even before beam circulating the ring. Besides a normal CCD camera to monitor the beam profile, streak camera and gated camera are used to measure the longitudinal and transverse profile to understand the beam dynamics. Measurement results from these cameras will be present in this paper.

Poster TUPF21 [1.631 MB]

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TUPD22

Beam Loss Monitor at SuperKEKB

ion, electronics, positron, hardware

459

H. Ikeda, M. Arinaga, J.W. Flanagan, H. Fukuma, M. Tobiyama
KEK, Ibaraki, Japan

We will use beam loss monitors for protection of the hardware of SuperKEKB against the unexpected sudden beam loss. The sensors are ion chambers and PIN photo-diodes. The loss monitor system gives an important trigger for the beam abort system. We can optimize the threshold of the abort trigger by checking the beam information at each abort moment. This paper explains the overall system of the SuperKEKB beam loss monitors including the damping ring.

Export •

reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

WEPD01

Observations of the Quadrupolar Oscillations at GSI SIS-18

pick-up, quadrupole, space-charge, emittance

629

R. Singh, P. Forck, P. Kowina
GSI, Darmstadt, Germany
M. Gąsior
CERN, Geneva, Switzerland
W.F.O. Müller, J.A. Tsemo Kamga, T. Weiland
TEMF, TU Darmstadt, Darmstadt, Germany

An asymmetric capacitive pick-up was installed at GSI SIS-18 for determination of the turn-by-turn beam quadrupole moment. The pick-up geometry is simulated to estimate its sensitivity towards the beam dipole and quadrupole moments. Turn-by-turn quadrupole moment measurement allows to calculate the frequency of beam-size oscillations. Recent beam measurements using this pick-up show clear indications of the beam-size oscillations induced by the injection mismatch. In this contribution, we present these measurements and discuss their relevance for the direct determination of the incoherent space charge tune shift.

Poster WEPD01 [3.589 MB]

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reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

WEPD05

Improvement of Data Transfer Speed of Large Memory Monitors

Ethernet, EPICS, FPGA, operation

642

M. Tobiyama
KEK, Ibaraki, Japan

Beam monitors with long memories will be widely used in SuperKEKB accelerators. Since the slow data transfer time of such devices usually limit the operational performance, improvement of the transfer rate is required. Two kind of devices, VME-based module and Ethernet-based modules has been developed. On the VME-based devices such as turn-by-turn position monitors for damping ring or long bunch oscillation monitors, MBLT and BLT transfer method has been implemented. For the Ethernet based system, the gated turn-by-turn monitors, SiTCP has been implemented on the FPGA and the EPICS device support for SiTCP has been developed. The improvement of the data transfer speed with the long-term reliability will be presented.

Poster WEPD05 [1.791 MB]

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reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

WEPD23

Commissioning of the ALBA Fast Orbit Feedback System

kicker, feedback, FPGA, controls

691

A. Olmos, S. Blanch-Torné, G. Cuní, Z. Martí, J. Moldes, R. Petrocelli, S. Rubio-Manrique, X. Serra-Gallifa, D. Yépez
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

The ALBA Fast Orbit FeedBack system (FOFB) started its commissioning phase in September 2013, when all the required hardware was installed and the development of different controls for the feedback started. This report shows our experience tuning the different parameters to setup the system, together with vibration and beam noise measurements at different conditions. Finally, the present results and future steps for this system are described.

Poster WEPD23 [0.902 MB]

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