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Atoms, Volume 11, Issue 10

October 2023 - 15 articles

Cover Story: CHIP-TRAP is the Central Michigan University High Precision Penning trap, which is being developed to perform ultra-high precision mass measurements on long-lived and stable isotopes for applications in nuclear and neutrino physics and in fundamental physics studies. CHIP-TRAP will utilize ions from a laser ablation ion source and a newly developed Penning ion trap source. Ions will be filtered with a multi-reflection time-of-flight mass separator and a cylindrical capture trap before being captured in a pair of hyperbolic geometry Penning traps in a 12 T magnetic field. Mass ratios will be determined via simultaneous cyclotron frequency measurements on pairs of ions in the two traps using a phase-sensitive image charge detection technique. This will significantly reduce uncertainty due to temporal magnetic field fluctuations. View this paper
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Articles (15)

  • Article
  • Open Access
2 Citations
2,220 Views
12 Pages

21 October 2023

We have calculated the electron and positron impact ionization of a set of molecules, SF6−nHn(n=0−6), SCln(n=1−6), SFn−1Cl(n=1−6) and SF5X(X=CN,CFO), for which there are much fewer data in the literature. We have optimiz...

  • Communication
  • Open Access
1,943 Views
6 Pages

18 October 2023

The excitation cross-sections of the 3D and 4D states of atomic hydrogen at low incident energies (from 0.90 to 5.00 Ry) were calculated using the variational polarized orbital method, which is also called the hybrid theory. Up to 12 partial waves (L...

  • Article
  • Open Access
1 Citations
1,907 Views
9 Pages

K-Edge Structure in Shock-Compressed Chlorinated Parylene

  • David Bailie,
  • Steven White,
  • Rachael Irwin,
  • Cormac Hyland,
  • Richard Warwick,
  • Brendan Kettle,
  • Nicole Breslin,
  • Simon N. Bland,
  • David J. Chapman and
  • Stuart P. D. Mangles
  • + 3 authors

18 October 2023

We have carried out a series of experiments to measure the Cl K-absorption edge for shock-compressed samples of chlorinated parylene. Colliding shocks allowed us to compress samples up to four times the initial density with temperatures up to 10 eV....

  • Article
  • Open Access
1 Citations
2,406 Views
13 Pages

Multi-Reflection Time-of-Flight Mass Spectroscopy for Superheavy Nuclides

  • Peter Schury,
  • Yuta Ito,
  • Toshitaka Niwase and
  • Michiharu Wada

17 October 2023

The atomic masses of isotopes of elements beyond fermium, which can presently only be produced online via fusion-evaporation reactions, have until recently been determined only from α decay chains reaching nuclides with known atomic masses. Esp...

  • Review
  • Open Access
1 Citations
2,318 Views
19 Pages

Review of Rydberg Spectral Line Formation in Plasmas

  • Andrey Yu. Letunov and
  • Valery S. Lisitsa

17 October 2023

The present review is dedicated to the problem of an array of transitions between highly-excited atomic levels. Hydrogen atoms and hydrogen-like ions in plasmas are considered here. The presented methods focus on calculation of spectral line shapes....

  • Article
  • Open Access
2 Citations
3,107 Views
11 Pages

Quantum-Chemical Study of the Benzene Reaction with Fluorine

  • Sergey O. Adamson,
  • Daria D. Kharlampidi,
  • Anastasia S. Shtyrkova,
  • Stanislav Y. Umanskii,
  • Yuri A. Dyakov,
  • Igor I. Morozov and
  • Maxim G. Golubkov

17 October 2023

The reaction of benzene with fluorine atoms may be of interest as a source of phenyl and ipso-fluorocyclohexadienyl radicals or as a method for fluorobenzene gas phase synthesis. The structures and electronic energies of the equilibrium configuration...

  • Article
  • Open Access
3 Citations
1,874 Views
20 Pages

16 October 2023

We present the results obtained using a novel quantum approach to describe the interaction of charged particles with the astrophysical type of plasmas, based on the dielectric plasma-wave-packet model (PWPM) together with a full description of statis...

  • Review
  • Open Access
8 Citations
3,276 Views
18 Pages

Review of the 1st EUV Light Sources Code Comparison Workshop

  • John Sheil,
  • Oscar Versolato,
  • Vivek Bakshi and
  • Howard Scott

13 October 2023

We review the results of the 1st Extreme Ultraviolet (EUV) Light Sources Code Comparison Workshop. The goal of this workshop was to provide a platform for specialists in EUV light source plasma modeling to benchmark and validate their numerical codes...

  • Article
  • Open Access
4 Citations
2,214 Views
11 Pages

The St. Benedict Facility: Probing Fundamental Symmetries through Mixed Mirror β-Decays

  • William S. Porter,
  • Daniel W. Bardayan,
  • Maxime Brodeur,
  • Daniel P. Burdette,
  • Jason A. Clark,
  • Aaron T. Gallant,
  • Alicen M. Houff,
  • James J. Kolata,
  • Biying Liu and
  • Patrick D. O’Malley
  • + 5 authors

11 October 2023

Precise measurements of nuclear beta decays provide a unique insight into the Standard Model due to their connection to the electroweak interaction. These decays help constrain the unitarity or non-unitarity of the Cabibbo–Kobayashi–Maska...

  • Article
  • Open Access
1 Citations
1,715 Views
10 Pages

8 October 2023

Periodic electric fields are found in many kinds of plasmas and result from the presence of collective fields amplified by plasma instabilities, or they are created by external sources such as microwave generators or lasers. The spectral lines emitte...

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Atoms - ISSN 2218-2004