Energy distribution of electrons under axial motion in a quadrupole Penning trap

Autor:	Sharath Ananthamurthy, Durgesh Datar, B.L. Mahesh, B M Dyavappa, K T Satyajith
Rok vydání:	2016
Předmět:	Condensed Matter::Quantum Gases Physics Energy distribution Oscillation General Physics and Astronomy Electron Penning trap 01 natural sciences 010305 fluids & plasmas 0103 physical sciences Quadrupole Physics::Atomic Physics Ion trap Atomic physics Quadrupole ion trap 010306 general physics
Zdroj:	Canadian Journal of Physics. 94:1245-1249
ISSN:	1208-6045 0008-4204
DOI:	10.1139/cjp-2016-0391
Popis:	We present results of the energy distribution function of trapped electrons through a measurement of their axial oscillation in a quadrupole Penning trap. Electrons emitted from a thoriated tungsten filament with a range of energies (3–5 eV) are trapped in a low magnetic field quadrupole Penning trap. Subsequent to storage the trapped electrons are detected through monitoring their axial oscillations by an electronic tank circuit that is weakly coupled to the trap, by resonant energy transfer to the electrons. The technique, developed using LabVIEW, enables a direct measurement of the energy distribution function of the electrons in the trap. We obtain a normal distribution of energy, with a maximum that coincides with the potential applied on the electron filament, indicating that the energy distribution of electrons in the trap reflects the energy distribution of the thermionically emitted electrons from the filament.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d500cf0d97e035cffde77891c571cf0 https://doi.org/10.1139/cjp-2016-0391 Zobrazit plný text záznamu Plný text ve formátu PDF