IBIC2014 - List of Keywords (optics)

Paper	Title	Other Keywords	Page
MOCYB2	Design and Initial Commissioning of Beam Diagnostics for the KEK Compact ERL	linac, radiation, electron, emittance	7
	R. Takai, T. Honda, T. Nogami, T. Obina, H. Sagehashi, Y. Tanimoto, M. Tobiyama KEK, Ibaraki, Japan
	A compact energy-recovery linac (cERL) was constructed at KEK as a test accelerator for the ERL-based light source. Standard beam monitors such as beam position monitors (BPMs), screen monitors (SCMs), and beam loss monitors (BLMs) have been developed for the cERL and used in its commissioning. For the main BPMs, we adopted the stripline type, the time response of which is improved by using a glass-sealed feedthrough. The SCMs are equipped with two types of screens and an RF shield for wake-field suppression. Optical fibers with photomultiplier tubes (PMTs), covering the entire cERL circumference, are used as the BLM. CsI scintillators with large-cathode PMTs are also prepared for detecting local beam loss. The design and some initial commissioning results of these standard monitors are described in this paper.
	Slides MOCYB2 [4.987 MB]
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TUIZB1	Radiation Sources and Their Application for Beam Profile Diagnostics	radiation, photon, diagnostics, electron	263
	G. Kube DESY, Hamburg, Germany
	Radiation generated by high-energy particle beams is widely used for beam diagnostic purposes. Depending on the mechanism of radiation generation, the emitted wavelength range extends from the THz up to the X-ray region, thus allowing the measurement of beam profiles in the longitudinal and the transverse plane over a wide range. In this talk, basic considerations for radiation based profile measurements will be discussed with special emphasis on the mechanism of radiation generation and the impact on beam diagnostic measurements.
	Slides TUIZB1 [4.803 MB]
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TUPD03	Terahertz and Optical Measurement Apparatus for the Fermilab ASTA Injector	radiation, dipole, laser, experiment	403
	R.M. Thurman-Keup, A.H. Lumpkin, J.C.T. Thangaraj Fermilab, Batavia, Illinois, USA
	ASTA is a facility at Fermilab that, once completed, will consist of a photoinjector with two superconducting capture cavities, at least one superconducting ILC-style cryomodule, and a small ring for studying non-linear, integrable beam optics. This paper discusses the layout for the optical transport system that will provide THz radiation to a Martin-Puplett interferometer for bunch length measurements as well as optical radiation to an externally located streak camera, also for bunch length measurements. It will be able to accept radiation from two synchrotron radiation ports in the bunch compressor, a diffraction/transition radiation screen downstream of the compressor, and a transition radiation screen after the spectrometer magnet for measurements of energy-time correlations.
	Poster TUPD03 [3.202 MB]
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WEPF16	Algorithm to Improve the Beta-Function Measurement and its Evaluation in Storage Rings Lattices	lattice, storage-ring, betatron, collider	574
	A.C. García-Bonilla UNAL, Bogota D.C, Colombia
	In any beam-line, one of the basic measurements during the beam-diagnostics is the measurement of the Beta-Function along the beam-line. This can be achieved in Storage Ring by taking the tune change obtained when varing the intensity of quadrupoles, or by using the matrix response to fit the corresponding parameters, or by shaking the beam to obtain a betatron motion. In accelerators like the LHC, the Beta-Function measurement is done from the Phase Advance Measurement using the Transfer Matrix. In this paper, a study of a new algorithm or numerically approximation for this measurement is presented, as well as the results of the simulations for the LHC and CLIC damping ring. The deduced and implemented algorithm takes into account a fraction of the both transverse planes measurements. A random (uniform) deviation of the MAD-X phase values is studied, by comparison of the proposed algorithm with the traditional one. An improvement close to 30% and 50% on the global error compare to the traditional way to measure the Beta Function is observed; this is for the studied cases using closed-orbits and phase advance values with deviations of 10 or 20 degrees. Postgraduate Student at Universidad Nacional de Colombia
	Poster WEPF16 [0.742 MB]
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Paper

Title

Other Keywords

Page

MOCYB2

Design and Initial Commissioning of Beam Diagnostics for the KEK Compact ERL

linac, radiation, electron, emittance

7

R. Takai, T. Honda, T. Nogami, T. Obina, H. Sagehashi, Y. Tanimoto, M. Tobiyama
KEK, Ibaraki, Japan

A compact energy-recovery linac (cERL) was constructed at KEK as a test accelerator for the ERL-based light source. Standard beam monitors such as beam position monitors (BPMs), screen monitors (SCMs), and beam loss monitors (BLMs) have been developed for the cERL and used in its commissioning. For the main BPMs, we adopted the stripline type, the time response of which is improved by using a glass-sealed feedthrough. The SCMs are equipped with two types of screens and an RF shield for wake-field suppression. Optical fibers with photomultiplier tubes (PMTs), covering the entire cERL circumference, are used as the BLM. CsI scintillators with large-cathode PMTs are also prepared for detecting local beam loss. The design and some initial commissioning results of these standard monitors are described in this paper.

Slides MOCYB2 [4.987 MB]

Export •

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

TUIZB1

Radiation Sources and Their Application for Beam Profile Diagnostics

radiation, photon, diagnostics, electron

263

G. Kube
DESY, Hamburg, Germany

Radiation generated by high-energy particle beams is widely used for beam diagnostic purposes. Depending on the mechanism of radiation generation, the emitted wavelength range extends from the THz up to the X-ray region, thus allowing the measurement of beam profiles in the longitudinal and the transverse plane over a wide range. In this talk, basic considerations for radiation based profile measurements will be discussed with special emphasis on the mechanism of radiation generation and the impact on beam diagnostic measurements.

Slides TUIZB1 [4.803 MB]

Export •

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

TUPD03

Terahertz and Optical Measurement Apparatus for the Fermilab ASTA Injector

radiation, dipole, laser, experiment

403

R.M. Thurman-Keup, A.H. Lumpkin, J.C.T. Thangaraj
Fermilab, Batavia, Illinois, USA

ASTA is a facility at Fermilab that, once completed, will consist of a photoinjector with two superconducting capture cavities, at least one superconducting ILC-style cryomodule, and a small ring for studying non-linear, integrable beam optics. This paper discusses the layout for the optical transport system that will provide THz radiation to a Martin-Puplett interferometer for bunch length measurements as well as optical radiation to an externally located streak camera, also for bunch length measurements. It will be able to accept radiation from two synchrotron radiation ports in the bunch compressor, a diffraction/transition radiation screen downstream of the compressor, and a transition radiation screen after the spectrometer magnet for measurements of energy-time correlations.

Poster TUPD03 [3.202 MB]

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

WEPF16

Algorithm to Improve the Beta-Function Measurement and its Evaluation in Storage Rings Lattices

lattice, storage-ring, betatron, collider

574

A.C. García-Bonilla
UNAL, Bogota D.C, Colombia

In any beam-line, one of the basic measurements during the beam-diagnostics is the measurement of the Beta-Function along the beam-line. This can be achieved in Storage Ring by taking the tune change obtained when varing the intensity of quadrupoles, or by using the matrix response to fit the corresponding parameters, or by shaking the beam to obtain a betatron motion. In accelerators like the LHC, the Beta-Function measurement is done from the Phase Advance Measurement using the Transfer Matrix. In this paper, a study of a new algorithm or numerically approximation for this measurement is presented, as well as the results of the simulations for the LHC and CLIC damping ring. The deduced and implemented algorithm takes into account a fraction of the both transverse planes measurements. A random (uniform) deviation of the MAD-X phase values is studied, by comparison of the proposed algorithm with the traditional one. An improvement close to 30% and 50% on the global error compare to the traditional way to measure the Beta Function is observed; this is for the studied cases using closed-orbits and phase advance values with deviations of 10 or 20 degrees.
Postgraduate Student at Universidad Nacional de Colombia

Poster WEPF16 [0.742 MB]

Export •

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