C. Pagani

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

Author Statistics

Papers

Citation

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i-10 index

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Author Order

Document Type

Co-Authors

P. Michelato

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

119

Daniele Sertore

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

100

A. Bosotti

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

Laura Monaco

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

P. Pierini

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

Rocco Paparella

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

Michele Bertucci

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

F. Stephan

Deutsches Elektronen-Synchrotron DESY

D. Barni

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

S. Schreiber

Deutsches Elektronen-Synchrotron DESY

Cooperative Institutions

Deutsches Elektronen-Synchrotron DESY

716

European Organization for Nuclear Research

499

Chinese Academy of Sciences

455

Institute of High Energy Physics

403

Centre National de la Recherche Scientifique

362

Fermi National Accelerator Laboratory

341

A. Alikhanyan National Laboratory

333

SLAC National Accelerator Laboratory

319

Istituto Nazionale di Fisica Nucleare

304

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

270

Author Statistics

Papers

Citation

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Research Field

XPS STUDIES OF Cs 2 Te PHOTOCATHODES

A. Vollmer Ruslan Ovsyannikov M. Sperling H. Duerr F. Stephan

Cesium telluride (Cs2Te) photocathodes are used as sources for electron beams because of their high quantum efficiency (QE) and their ability to release high peak cur- rent electron bunches in a high gradient RF-gun. Start- ing from a high QE level of about 10 % the quantum ef- ficiency of these cathodes decreases during operation in a photo-injector to below 0.5 %. To understand this be- haviour, XPS investigations on the chemical composition were performedat BESSY. In this contributionwe compare two fresh cathodes from INFN with one used under normal operation at FLASH and one used at PITZ at a higher than usual RF-gradient of 60 MV/m.

Caesium

Quantum Efficiency

Telluride

Photocathode

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Citations (2)

Fabrication and Treatment of the ESS Medium Beta Prototype Cavities

8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, 14â19 May, 2017 (2017)

Laura Monaco Andrea Bellandi Michele Bertucci Andrea Bignami A. Bosotti

BETA (programming language)

10.18429/jacow-ipac2017-mopva060

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Citations (1)

HIGH PRESSURE RINSING WATER JET CHARACTERIZATION

Daniele Sertore M. Fusetti P. Michelato C. Pagani P. Pierini

High pressure rinsing is widely used as the final wet step in the high field superconducting cavities production. The interaction of an high speed ultra pure water jet with the niobium surface depends on various parameters such as water pressure, water throughput, treatment duration, cavity rotation speed, etc. In this paper we illustrate a simple technique for the characterization of water jet parameters based on the momentum transfer between the water jet and a load cell. The jet profile and its dependence on water pressure as well as the force exerted by the jet on the surface are easily measured. Moreover a portable apparatus has been set up and the information gathered in different laboratories will be used for a quantitative comparison of the different HPR systems. These measurements allow to study the correlation of the jet parameters with the effects (surface status, oxide formation, corrosion, etc.) of the water interaction with the niobium surface. Furthermore a new analysis, based on the luminescence induced on transparent dielectric samples, is used for confirmation of the water jet structure.

Water jet

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Citations (2)

Propagation of a short RF pulse train in an iris-loaded waveguide

Elsevier eBooks (1989)

Luca Ferrucci C. Pagani L. Serafini

IRIS (biosensor)

Waveguide

10.1016/b978-0-444-87395-8.50020-0

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Citations (0)

Fabrication of the 3.9 GHz SRF Structures for the European XFEL

17th International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 (2015)

P. Pierini Michele Bertucci A. Bosotti Jinfang Chen A. Gresele

10.18429/jacow-srf2015-thpb035

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Citations (0)

TESLA FEL photo-injector simulations giving high-quality beams

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (1997)

J.-L. Coacolo C. Pagani L. Serafini

Dynamics

10.1016/s0168-9002(97)00539-1

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Citations (7)

Defect detection inside superconducting 1.3 GHz cavities by means of x-ray fluorescence spectroscopy

Review of Scientific Instruments (2016)

Michele Bertucci P. Michelato Michael Moretti A. Navitski C. Pagani

X-ray fluorescence probe for detection of foreign material inclusions on the inner surface of superconducting cavities has been developed and tested. The setup detects trace element content such as a few micrograms of impurities responsible for thermal breakdown phenomena limiting the cavity performance. The setup has been customized for the geometry of 1.3 GHz TESLA-type niobium cavities and focuses on the surface of equator area at around 103 mm from the centre axis of the cavities with around 20 mm detection spot. More precise localization of inclusions can be reconstructed by means of angular or lateral displacement of the cavity. Preliminary tests confirmed a very low detection limit for elements laying in the high efficiency spectrum zone (from 5 to 10 keV), and a high angular resolution allowing an accurate localization of defects within the equator surface.

10.1063/1.4939611

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Citations (3)

IRIDE : an interdisciplinary researchinfrastructure based on dual electron linacs&lasers : a white book

D. Alesini M. Alessandroni M. P. Anania S. Andreas M. Angelone

White paper

White (mutation)

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Citations (0)

STATUS OF THE EUROPEAN XFEL 3.9 GHZ SYSTEM

P. Pierini A. Bosotti P. Michelato Laura Monaco C. Pagani

The injector of the European XFEL will use a third harmonic RF system at 3.9 GHz to flatten the RF curvature after the first accelerating module before the first bunch compression stage. This paper presents qualification tests of the prototype cavities and the status of the activities for the realization of the third harmonic section of the European XFEL towards its commissioning due in 2014.

Realization (probability)

Harmonic

Source

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Citations (1)

INFN-LASA Cavity Design for PIP-II LB650 Cavity

18th Int. Conf. on RF Superconductivity (SRF'17), Lanzhou, China, July 17-21, 2017 (2018)

C. Pagani Michele Bertucci Andrea Bignami A. Bosotti Jinfang Chen

10.18429/jacow-srf2017-tupb070

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Citations (2)