Multi-GeV electron spectrometer

Year: 2010

Authors: Faccini R., Anelli F., Bacci A.,Batani D., Bellaveglia M., Benocci R., Benedetti C., Cacciotti L., Cecchetti C.A., Clozza A., Cultrera L., Di Pirro G., Drenska N., Ferrario M., Filippetto D., Fioravanti S., Gallo, A., Gamucci A., Gatti G., Ghigo A., Giulietti A., Giulietti D., Gizzi L.A., Koester P., Labate L., Levato T., Lollo V., Londrillo P., Martellotti S., Pace E., Patack N., Rossi A., Tani F., Serafini L., Turchetti G., Vaccarezza C., Valente P.

Autors Affiliation: Sezione Ist Nazl Fis Nucl, Rome, Italy; Univ Roma La Sapienza, Dip Fis, Rome, Italy; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy; Univ Milan, Dip Fis, I-20122 Milan, Italy; Univ Milan, Sez INFN, I-20122 Milan, Italy; Univ Milano Bicocca, Dip Fis, Milan, Italy; Univ Milano Bicocca, Sez INFN, Milan, Italy; Univ Bologna, Dip Fis, I-40126 Bologna, Italy; Sez INFN Bologna, Bologna, Italy; CNR, ILIL IPCF, I-56100 Pisa, Italy; Sezione Ist Nazl Fis Nucl, Pisa, Italy; Univ Bologna, Dip Astron, I-40126 Bologna, Italy; INAF Sez Bologna, Bologna, Italy; Univ Pisa, Dip Fis, I-56100 Pisa, Italy

Abstract: The advance in laser-plasma acceleration techniques pushes the regime of the resulting accelerated particles to higher energies and intensities. In particular the upcoming experiments with the FLAME laser at LNF will enter the GeV regime with almost 1nC of electrons. From the current status of understanding of the acceleration mechanism, relatively large angular and energy spreads are expected. There is therefore the need to develop a device capable to measure the energy of electrons over three orders of magnitude (few MeV to few GeV) under still unknown angular divergences. Within the PlasmonX experiment at LNF a spectrometer is being constructed to perform these measurements. It is made of an electro-magnet and a screen made of scintillating fibers for the measurement of the trajectories of the particles. The large range of operation, the huge number of particles and the need to focus the divergence present unprecedented challenges in the design and construction of such a device. We will present the design considerations for this spectrometer and the first results from a prototype. (C) 2010 Elsevier B.V. All rights reserved.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 623 (2)      Pages from: 704  to: 708

More Information: Proceedings Paper: 1st International Conference on Frontiers in Diagnostic Technologies, Frascati, ITALY, NOV 25-29, 2009
KeyWords: electron spectrometer
DOI: 10.1016/j.nima.2010.02.095

Citations: 2
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