Longitudinal Space Charge Effects in Bunched Electron Beams Travelling through a Malmberg-Penning Trap

Journal Article · Wed Jun 16 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3460148· OSTI ID:21366947

Rome, M; Cavaliere, F; De Luca, F; Pozzoli, R ^[1]; Cavenago, M ^[2]; Maero, G ^[3]; Paroli, B ^[1]

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1. INFN Sezione di Milano and Dipartimento di Fisica, Universita degli Studi di Milano, Via Celoria 16, 20133 Milano (Italy)
2. INFN Laboratori Nazionali di Legnaro, Viale dell'Universita 2, 35020 Legnaro (Italy)
3. Dipartimento di Fisica, Universita degli Studi di Milano, Via Celoria 16, 20133 Milano (Italy)

Nanosecond pulsed electron beams in the 1-10 keV energy range have been characterized by means of an electrostatic diagnostic in the Malmberg-Penning trap ELTRAP. The beam length has been inferred through the numerical analysis of the signals measured across the overall load impedance of a planar charge collector. The presence of space charge effects leading to a longitudinal spread of the beam during its transport are evidenced at low injection energies. This feature has also been tested with the use of a one-dimensional fluid model and with two-dimensional, cylindrically-symmetric Particle-In-Cell simulations, whose results are compared to the experimental observations.

• OSTI ID: 21366947
• Journal Information: AIP Conference Proceedings, Vol. 1242, Issue 1; Conference: International symposium on plasmas in the laboratory and the Universe: Interactions, patterns, and turbulence, Como (Italy), 1-4 Dec 2009; Other Information: DOI: 10.1063/1.3460148; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
CYCLOTRON RESONANCE
ELECTRIC IMPEDANCE
ELECTRON BEAMS
KEV RANGE 01-10
NUMERICAL ANALYSIS
ONE-DIMENSIONAL CALCULATIONS
POWER TRANSMISSION LINES
SIGNALS
SIMULATION
SPACE CHARGE
SYMMETRY
TWO-DIMENSIONAL CALCULATIONS
BEAMS
ENERGY RANGE
IMPEDANCE
KEV RANGE
LEPTON BEAMS
MATHEMATICS
PARTICLE BEAMS
RESONANCE