Density dependence of electron mobility in dense gases

Bagheri, Ahmad Reza; Baluja, K. L.; Datta, Savita

doi:10.1007/bf01437150

Cited by 33 publications

(2 citation statements)

References 18 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The drift velocity of electrons in hydrogen gas has been well documented [23][24][25][26][27][28][29][30]. The mobility of electrons in hydrogen gas has also been well measured [31][32][33][34][35][36][37]. Figure 3 shows the drift velocity and thermal energy of electrons in hydrogen gas at 300 K vs X 0 .…”

Section: Plasma Loadingmentioning

confidence: 85%

Pressurized rf cavities in ionizing beams

Freemire

Tollestrup

Yonehara

et al. 2016

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

A muon collider or Higgs factory requires significant reduction of the six dimensional emittance of the beam prior to acceleration. One method to accomplish this involves building a cooling channel using high pressure gas filled radio frequency cavities. The performance of such a cavity when subjected to an intense particle beam must be investigated before this technology can be validated. To this end, a high pressure gas filled radio frequency (rf) test cell was built and placed in a 400 MeV beam line from the Fermilab linac to study the plasma evolution and its effect on the cavity. Hydrogen, deuterium, helium and nitrogen gases were studied. Additionally, sulfur hexafluoride and dry air were used as dopants to aid in the removal of plasma electrons. Measurements were made using a variety of beam intensities, gas pressures, dopant concentrations, and cavity rf electric fields, both with and without a 3 T external solenoidal magnetic field. Energy dissipation per electron-ion pair, electron-ion recombination rates, ion-ion recombination rates, and electron attachment times to $SF_6$ and $O_2$ were measured.Comment: 15 p

show abstract

Section: Plasma Loadingmentioning

confidence: 85%

Pressurized rf cavities in ionizing beams

Freemire

Tollestrup

Yonehara

et al. 2016

Phys. Rev. Accel. Beams

View full text Add to dashboard Cite

show abstract

“…The drift velocity of electrons in hydrogen gas has been well documented [46][47][48][49][50][51][52]. The mobility of electrons in hydrogen gas has also been well measured [53][54][55][56][57][58][59]. The energy loss of a single electron, dw, can then be estimated taking the limits of integration of Eq.…”

Section: Plasma Loadingmentioning

confidence: 99%

High Pressure Gas Filled RF Cavity Beam Test at the Fermilab MuCool Test Area

Freemire¹

2013

View full text Add to dashboard Cite

show abstract

Ions and electrons in liquid helium

Borghesani

2007

View full text Add to dashboard Cite

In liquid helium, an electron is surrounded by a cavity called an electron bubble of 20 Ångstroms in diameter. A positive helium ion is solvated by an electrostriction induced solid helium-ice shell called a snowball of 7 Ångstroms in diameter. By studying their transport properties, these objects are well suited for the testing of the microscopic properties of superfluidity. At low temperatures and with small electric fields, the drift velocity of the charges depends on their interaction with the elementary excitations of the superfluid: phonons, rotons, and 3He atomic impurities. At higher fields, ions produce quantized vortex rings and vortex lines and studying these sheds light on quantum hydrodynamics. In the fermionic liquid, the 3He isotope ion transport properties display important pieces of information on the coupling of a charge to a Fermi liquid and on the richer topological structure of the superfluid phases appearing at ultralow temperatures. In the normal liquid phases of both isotopes, ions and electrons are used to probe classical hydrodynamics at the λ-transition and at the liquid-vapor transition at which long-range critical fluctuations of the appropriate order parameter occur. Several experiments have investigated the structure of electron bubbles. Electron drift velocity measurements in dense helium gas have elucidated the dynamics of electron bubble formation. This book provides a review of the more than forty-year-long experimental and theoretical research on the transport properties of electrons and ions in liquid and gaseous helium.

show abstract

Density dependence of electron mobility in dense gases

Cited by 33 publications

References 18 publications

Pressurized rf cavities in ionizing beams

Pressurized rf cavities in ionizing beams

High Pressure Gas Filled RF Cavity Beam Test at the Fermilab MuCool Test Area

Ions and electrons in liquid helium

Contact Info

Product

Resources

About