Fast electron accumulation and its mechanism in a harmonic trap under ultrahigh vacuum conditions

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3562501· OSTI ID:21537293

Mohamed, T; Imao, H; Mohri, A ^[1]; Oshima, N ^[2]; Yamazaki, Y ^[1]

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1. Atomic Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
2. National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568 (Japan)

We present here a fast and efficient electron accumulation in a multiring trap (MRT) in a superconducting solenoid of 5 T. More than 10{sup 10} electrons were accumulated within a fraction of a second for an electron beam in the range of 10{sup -7} A. The MRT was installed in a cryogenic bore tube cooled down to {approx}10 K. Electron accumulation as a function of various parameters such as the beam intensity, the MRT depth, and the MRT length was studied. We succeeded in extracting a consistent picture of the electron accumulation mechanisms, which consist of interactions of the incoming electron beam with the reflected beam and with the electrons trapped in the MRT.

• OSTI ID: 21537293
• Journal Information: Physics of Plasmas, Vol. 18, Issue 3; Other Information: DOI: 10.1063/1.3562501; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BUILDUP
ELECTRON BEAMS
ELECTRONS
SOLENOIDS
SUPERCONDUCTING MAGNETS
TRAPS
BEAMS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
LEPTON BEAMS
LEPTONS
MAGNETS
PARTICLE BEAMS
SUPERCONDUCTING DEVICES