HB2016 - List of Keywords (diagnostics)

Paper	Title	Other Keywords	Page
MOPL002	The DESIR Facility at GANIL-SPIRAL2: The Transfer Beam Lines	quadrupole, ion, optics, emittance	179
	L. Perrot, P. Blache, S. Rousselot IPN, Orsay, France
	Funding: French ANR, Investissements d'Avenir, EQUIPEX. Contract number ANR-11-EQPX-0012. The new ISOL facility SPIRAL2 is currently being built at GANIL, Caen France. The commissioning of the accelerator is in progress since 2015. SPIRAL2 will produce a large number of new radioactive ion beams (RIB) at high intensities. In 2019, the DESIR facility will receive beams from the upgraded SPIRAL1 facility of GANIL (stable beam and target fragmentation), from the S3 Low Energy Branch (fusion-evaporation and deep-inelastic reactions). In order to deliver the RIB to the experimental set-ups installed in the DESIR hall, 110 meters of beam line are studied since 2014. This paper will focus on the recent studies which have been done on these transfer lines: beam optics and errors calculations, quadrupoles, diagnostics and mechanical designs.
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WEPM1Y01	Emittance Reconstruction Techniques in Presence of Space Charge Applied During the Linac4 Beam Commissioning	linac, emittance, space-charge, DTL	433
	V.A. Dimov, J.-B. Lallement, A.M. Lombardi CERN, Geneva, Switzerland R. Gaur RRCAT, Indore, India
	The classical emittance reconstruction technique, based on analytic calculations using transfer matrices and beam profile measurements, is reliable only if the emittance is conserved and the space charge forces are negligible in the beamline between the reconstruction and measurement points. The effects of space charge forces prevent this method from giving sound results up to a relativistic beta of about 0.5 and make it inapplicable to the Linac4 commissioning at 50 and 100 MeV. To compensate for this drawback we have developed a dedicated technique, the forward method, which extends the classical method by combining it with an iterative process of multiparticle tracking including space charge forces. The forward method, complemented with a tomographic reconstruction routine, has been applied to transverse and longitudinal emittance reconstruction during the Linac4 beam commissioning. In this paper we describe the reconstruction process and its application during Linac4 beam commissioning.
	Slides WEPM1Y01 [1.923 MB]
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Paper

Title

Other Keywords

Page

MOPL002

The DESIR Facility at GANIL-SPIRAL2: The Transfer Beam Lines

quadrupole, ion, optics, emittance

179

L. Perrot, P. Blache, S. Rousselot
IPN, Orsay, France

Funding: French ANR, Investissements d'Avenir, EQUIPEX. Contract number ANR-11-EQPX-0012.
The new ISOL facility SPIRAL2 is currently being built at GANIL, Caen France. The commissioning of the accelerator is in progress since 2015. SPIRAL2 will produce a large number of new radioactive ion beams (RIB) at high intensities. In 2019, the DESIR facility will receive beams from the upgraded SPIRAL1 facility of GANIL (stable beam and target fragmentation), from the S3 Low Energy Branch (fusion-evaporation and deep-inelastic reactions). In order to deliver the RIB to the experimental set-ups installed in the DESIR hall, 110 meters of beam line are studied since 2014. This paper will focus on the recent studies which have been done on these transfer lines: beam optics and errors calculations, quadrupoles, diagnostics and mechanical designs.

Export •

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

WEPM1Y01

Emittance Reconstruction Techniques in Presence of Space Charge Applied During the Linac4 Beam Commissioning

linac, emittance, space-charge, DTL

433

V.A. Dimov, J.-B. Lallement, A.M. Lombardi
CERN, Geneva, Switzerland
R. Gaur
RRCAT, Indore, India

The classical emittance reconstruction technique, based on analytic calculations using transfer matrices and beam profile measurements, is reliable only if the emittance is conserved and the space charge forces are negligible in the beamline between the reconstruction and measurement points. The effects of space charge forces prevent this method from giving sound results up to a relativistic beta of about 0.5 and make it inapplicable to the Linac4 commissioning at 50 and 100 MeV. To compensate for this drawback we have developed a dedicated technique, the forward method, which extends the classical method by combining it with an iterative process of multiparticle tracking including space charge forces. The forward method, complemented with a tomographic reconstruction routine, has been applied to transverse and longitudinal emittance reconstruction during the Linac4 beam commissioning. In this paper we describe the reconstruction process and its application during Linac4 beam commissioning.

Slides WEPM1Y01 [1.923 MB]

Export •

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