You are currently viewing a new version of our website. To view the old version click .

Atoms, Volume 9, Issue 3

September 2021 - 35 articles

Cover Story: Tungsten (W) is used as plasma-facing wall material of magnetically confined plasma devices for nuclear fusion energy developments. Emission lines from highly charged tungsten ions in plasmas are, therefore, useful for passive fusion plasma diagnostics. Optical emission lines have a particular usefulness because mirrors and optical fibers are available to prevent detectors from being directly irradiated with 14 MeV neutrons from fusion plasmas. Using an electron-beam-ion trap (EBIT), a versatile apparatus for spectroscopy of highly charged ions, emission lines of W20+–W29+ are newly identified in a near-UV range. Among them, a magnetic-dipole line of W29+ is studied in detail using a collisional–radiative model and a MCDHF method. View this paper.
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (35)

  • Article
  • Open Access
12 Citations
3,170 Views
47 Pages

Relativistic Study on the Scattering of e± from Atoms and Ions of the Rn Isonuclear Series

  • Mahmudul H. Khandker,
  • A. K. Fazlul Haque,
  • M. M. Haque,
  • M. Masum Billah,
  • Hiroshi Watabe and
  • M. Alfaz Uddin

27 August 2021

Calculations are presented for differential, integrated elastic, momentum transfer, viscosity, inelastic, total cross sections and spin polarization parameters S, T and U for electrons and positrons scattering from atoms and ions of radon isonuclear...

  • Article
  • Open Access
7 Citations
4,196 Views
11 Pages

Interferometry in an Atomic Fountain with Ytterbium Bose–Einstein Condensates

  • Daniel Gochnauer,
  • Tahiyat Rahman,
  • Anna Wirth-Singh and
  • Subhadeep Gupta

25 August 2021

We present enabling experimental tools and atom interferometer implementations in a vertical “fountain” geometry with ytterbium Bose–Einstein condensates. To meet the unique challenge of the heavy, non-magnetic atom, we apply a shaped optical potenti...

  • Article
  • Open Access
1 Citations
3,730 Views
22 Pages

17 August 2021

Molecular dynamic simulations of Li+, and Br− ions in acetonitrile were carried out. The simulated structural properties were compared to experimental data. The solvent potentials of Li+-Br−, Li+-Li+, and Br−-Br− were evaluated using constrained mole...

  • Article
  • Open Access
1 Citations
2,477 Views
12 Pages

Redistribution of the Rydberg State Population Induced by Continuous-Spectrum Radiation

  • Anastasia S. Chervinskaya,
  • Dmitrii L. Dorofeev and
  • Boris A. Zon

6 August 2021

We consider the redistribution of the Rydberg state population resulting from multistep cascade transitions induced by radiation with a continuous spectrum. The population distribution is analyzed within the space of quantum numbers n and l. The dyna...

  • Article
  • Open Access
4 Citations
2,630 Views
15 Pages

6 August 2021

We find a zero in the positronium formation scattering amplitude and a deep minimum in the logarithm of the corresponding differential cross section for positron–helium collisions for an energy just above the positronium formation threshold. Correspo...

  • Article
  • Open Access
3 Citations
2,812 Views
22 Pages

Microwave Atom Chip Design

  • William Miyahira,
  • Andrew P. Rotunno,
  • ShuangLi Du and
  • Seth Aubin

5 August 2021

We present a toolbox of microstrip building blocks for microwave atom chips geared towards trapped atom interferometry. Transverse trapping potentials based on the AC Zeeman (ACZ) effect can be formed from the combined microwave magnetic near fields...

  • Article
  • Open Access
13 Citations
3,297 Views
19 Pages

4 August 2021

We report new accurate measurements of the drift mobility μ of quasifree electrons in moderately dense helium gas in the temperature range 26K≤T≤300K for densities lower than those at which states of electrons localized in bubbles appear. By heuristi...

  • Article
  • Open Access
7 Citations
3,405 Views
25 Pages

High Sensitivity Multi-Axes Rotation Sensing Using Large Momentum Transfer Point Source Atom Interferometry

  • Jinyang Li,
  • Gregório R. M. da Silva,
  • Wayne C. Huang,
  • Mohamed Fouda,
  • Jason Bonacum,
  • Timothy Kovachy and
  • Selim M. Shahriar

3 August 2021

A point source interferometer (PSI) is a device where atoms are split and recombined by applying a temporal sequence of Raman pulses during the expansion of a cloud of cold atoms behaving approximately as a point source. The PSI can work as a sensiti...

of 4

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Atoms - ISSN 2218-2004