IBIC2016 - List of Authors (Nosych, A.A.)

Paper	Title	Page
MOPG22	Studies and Historical Analysis of ALBA Beam Loss Monitors	94
	A.A. Nosych, U. Iriso ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	During 5 years of operation in the 3 GeV storage ring of ALBA, the 124 beam loss monitors (BLM) have provided stable measurements of relative losses around the machine, with around 10% breakdown of units. We have analyzed these BLM failures and correlated the integrated received dose with any special conditions of each BLM location which might have led to their breakdown. We also show studies of beam losses in the insertion devices, with particular attention to the results in the multipole wiggler (MPW), where the vacuum chamber is (suspected to be) misaligned and high BLM counts are detected.
	Poster MOPG22 [16.015 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG22
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MOPG41	A New Wall Current Monitor for the CERN Proton Synchrotron	143
	J.M. Belleman, W. Andreazza CERN, Geneva, Switzerland A.A. Nosych ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	Wall Current Monitors are the devices of choice to observe the instantaneous beam current in proton accelerators. These entirely passive transformers deliver a high-fidelity image of the beam intensity in a bandwidth spanning from about 100kHz up to several GHz. They serve as a signal source for a diverse set of applications including Low Level RF feedback and longitudinal diagnostics such as bunch shape measurements and phase-space tomography. They are appreciated for their excellent reliability, large bandwidth and unsurpassed dynamic range. We describe the design of a new Wall Current Monitor for the CERN Proton Synchrotron with a useful bandwidth of 100kHz to 4GHz. Two such devices have been installed in the PS machine and are now used in regular operation. Some usage examples will be shown.
	Poster MOPG41 [1.728 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG41
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MOPG55	Streak Camera Calibration Using RF Switches	186
	U. Iriso, M. Alvarez, A.A. Nosych ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain A. Molas UAB, Barcelona, Spain
	The streak camera has been used to measure the bunch length since the ALBA storage ring commissioning in 2011. Previously, we developed an optical calibration system based on the Michelson interferometry. Similar to the work at the DLS, in this report we show the calibration kit based on the different electrical delays which can be used via rf switches. We compare both calibration systems and we show measurements of the longitudinal impedance obtained with the new calibration. L. Bobb, A. Morgan, and G. Rehm, "Streak Camera PSF optimisation and udal sweep calibration for sub-ps bunch length measurements", Proc. of IBIC2015 (Australia)
	Poster MOPG55 [0.848 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG55
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MOPG73	Transverse Beam Size Diagnostics using Brownian Nanoparticles at ALBA	248
	M. Siano, B. Paroli, M.A.C. Potenza Universita' degli Studi di Milano & INFN, Milano, Italy A. Goldblatt, S. Mazzoni, G. Trad CERN, Geneva, Switzerland U. Iriso, A.A. Nosych, L. Torino ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	In this work we describe a novel beam diagnostic method based on coherence characterization of broad-spectrum bending magnet radiation through the Heterodyne Near Field Scattering (HNFS) technique. HNFS is a self-referencing technique based on the interference between the transmitted beam and the spherical waves scattered by each particle of a colloidal suspension. The resulting single-particle interferogram shows circular fringes modulated by the spatio-temporal Complex Coherence Factor (CCF) of the radiation. Superposition of a number of these patterns results in a stochastic speckle field, from which spatial and temporal coherence information of the source can be retrieved in near field conditions. Here we describe the basics of this technique, the experimental setup mounted along the hard X-ray pinhole at the ALBA synchrotron light source, and the possibility of transverse electron beam size retrieval from the spatial coherence function of the emitted dipole radiation. We also show preliminary results concerning power spectral density of visible synchrotron radiation as obtained from temporal coherence.
	Poster MOPG73 [1.804 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG73
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Studies and Historical Analysis of ALBA Beam Loss Monitors

94

A.A. Nosych, U. Iriso
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

During 5 years of operation in the 3 GeV storage ring of ALBA, the 124 beam loss monitors (BLM) have provided stable measurements of relative losses around the machine, with around 10% breakdown of units. We have analyzed these BLM failures and correlated the integrated received dose with any special conditions of each BLM location which might have led to their breakdown. We also show studies of beam losses in the insertion devices, with particular attention to the results in the multipole wiggler (MPW), where the vacuum chamber is (suspected to be) misaligned and high BLM counts are detected.

Poster MOPG22 [16.015 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG22

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

MOPG41

A New Wall Current Monitor for the CERN Proton Synchrotron

143

J.M. Belleman, W. Andreazza
CERN, Geneva, Switzerland
A.A. Nosych
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

Wall Current Monitors are the devices of choice to observe the instantaneous beam current in proton accelerators. These entirely passive transformers deliver a high-fidelity image of the beam intensity in a bandwidth spanning from about 100kHz up to several GHz. They serve as a signal source for a diverse set of applications including Low Level RF feedback and longitudinal diagnostics such as bunch shape measurements and phase-space tomography. They are appreciated for their excellent reliability, large bandwidth and unsurpassed dynamic range. We describe the design of a new Wall Current Monitor for the CERN Proton Synchrotron with a useful bandwidth of 100kHz to 4GHz. Two such devices have been installed in the PS machine and are now used in regular operation. Some usage examples will be shown.

Poster MOPG41 [1.728 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG41

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

MOPG55

Streak Camera Calibration Using RF Switches

186

U. Iriso, M. Alvarez, A.A. Nosych
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
A. Molas
UAB, Barcelona, Spain

The streak camera has been used to measure the bunch length since the ALBA storage ring commissioning in 2011. Previously, we developed an optical calibration system based on the Michelson interferometry. Similar to the work at the DLS*, in this report we show the calibration kit based on the different electrical delays which can be used via rf switches. We compare both calibration systems and we show measurements of the longitudinal impedance obtained with the new calibration.
*L. Bobb, A. Morgan, and G. Rehm, "Streak Camera PSF optimisation and udal sweep calibration for sub-ps bunch length measurements", Proc. of IBIC2015 (Australia)

Poster MOPG55 [0.848 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG55

Export •

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

MOPG73

Transverse Beam Size Diagnostics using Brownian Nanoparticles at ALBA

248

M. Siano, B. Paroli, M.A.C. Potenza
Universita' degli Studi di Milano & INFN, Milano, Italy
A. Goldblatt, S. Mazzoni, G. Trad
CERN, Geneva, Switzerland
U. Iriso, A.A. Nosych, L. Torino
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

In this work we describe a novel beam diagnostic method based on coherence characterization of broad-spectrum bending magnet radiation through the Heterodyne Near Field Scattering (HNFS) technique. HNFS is a self-referencing technique based on the interference between the transmitted beam and the spherical waves scattered by each particle of a colloidal suspension. The resulting single-particle interferogram shows circular fringes modulated by the spatio-temporal Complex Coherence Factor (CCF) of the radiation. Superposition of a number of these patterns results in a stochastic speckle field, from which spatial and temporal coherence information of the source can be retrieved in near field conditions. Here we describe the basics of this technique, the experimental setup mounted along the hard X-ray pinhole at the ALBA synchrotron light source, and the possibility of transverse electron beam size retrieval from the spatial coherence function of the emitted dipole radiation. We also show preliminary results concerning power spectral density of visible synchrotron radiation as obtained from temporal coherence.

Poster MOPG73 [1.804 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG73

Export •

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