Collision measurements and excited-level lifetime measurements on ions stored in Paul, Penning and Kingdon ion traps

Church, D. A.

doi:10.1016/0370-1573(93)90030-h

Cited by 73 publications

(32 citation statements)

References 262 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has also been coupled with electron multipliers, Faraday cups, micro-channel plates and photomultiplier tube detectors for spectroscopic interrogation of trapped ions (Church et al, 1999b;Prior & Wang, 1977;Yang & Church, 1991;. In typical experiments, lifetimes of the metastable electronic states of multiply charged ions are measured (Church, Moehs, & Bhatti, 1999a;, 1999Moehs, Church, & Phaneuf, 1998;Moehs et al, 2000;Moehs, Bhatti, & Church, 2001;Smith, Chutjian, & Greenwood, 1999;Smith et al, 2004;Smith, Chutjian, & Lozana, 2005;Yang et al, 1994), providing diagnostic empirical information about the electron density and temperature in astrophysical and laboratory plasmas (Church, 1993;Church et al, 1999b). Submillimeter glass and copper particles (approximately 50-60 mm in diameter) have been confined in the Kingdon trap to study orbital mechanics, with possible implications for understanding the dynamics of asteroids, galaxies, and planetary rings (Biewer et al, 1994;Robertson, 1995;Robertson & Alexander, 1995).…”

Section: Orbital Trapping and Kingdon Trapsmentioning

confidence: 99%

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Perry

Cooks

Noll

2008

Mass Spectrometry Reviews

403

290

View full text Add to dashboard Cite

Since its introduction, the orbitrap has proven to be a robust mass analyzer that can routinely deliver high resolving power and mass accuracy. Unlike conventional ion traps such as the Paul and Penning traps, the orbitrap uses only electrostatic fields to confine and to analyze injected ion populations. In addition, its relatively low cost, simple design and high space‐charge capacity make it suitable for tackling complex scientific problems in which high performance is required. This review begins with a brief account of the set of inventions that led to the orbitrap, followed by a qualitative description of ion capture, ion motion in the trap and modes of detection. Various orbitrap instruments, including the commercially available linear ion trap–orbitrap hybrid mass spectrometers, are also discussed with emphasis on the different methods used to inject ions into the trap. Figures of merit such as resolving power, mass accuracy, dynamic range and sensitivity of each type of instrument are compared. In addition, experimental techniques that allow mass‐selective manipulation of the motion of confined ions and their potential application in tandem mass spectrometry in the orbitrap are described. Finally, some specific applications are reviewed to illustrate the performance and versatility of the orbitrap mass spectrometers. © 2008 Wiley Periodicals, Inc., Mass Spec Rev 27: 661–699, 2008

show abstract

Section: Orbital Trapping and Kingdon Trapsmentioning

confidence: 99%

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Perry

Cooks

Noll

2008

Mass Spectrometry Reviews

403

290

View full text Add to dashboard Cite

show abstract

“…This rate constant includes all effects that remove an emitting O 2+ ion from the trap, including charge exchange, collisional deexcitation, fine-structure mixing, and collisional ejection of the ions from the trap (Church 1993). Taking a rather large rate constant of k ¼ 1:0 Â 10 À8 cm 3 s À1 (see, for example, values listed in Table 7a of Church 1993) and a background gas density n in the trap of 1 Â 10 7 cm À3 , one has a collisional loss rate of kn ¼ 0:1 s À1 . This is more than 18 times smaller than the metastable decay rate of 1.85 s À1 and has only a small (5.6%) effect on the measured radiative decay rate.…”

Section: Resultsmentioning

confidence: 99%

Measurement of the Metastable Lifetime for the 2s²2p²¹S₀Level in O²⁺

Smith

Čadeź

Chutjian

et al. 2004

ApJ

View full text Add to dashboard Cite

The radiative lifetime of the 2s 2 2p 2 1 S 0 level in O 2+ has been measured via the magnetic-dipole (M1) transition 2s 2 2p 2 1 S 0 ! 3 P 1 at 232.17 nm. Data were recorded in a Kingdon trap, with the source of ions a 14 GHz electron cyclotron resonance ion source. The lifetime of the 1 S 0 level was found to be 540 AE 27 ms. This is in good agreement with a previous measurement and with a number of theoretical calculations. Metastable lifetimes, when combined with collisional excitation rates, can provide a diagnostic for electron density N e in a stellar or solar plasma.

show abstract

“…There are traps that by voltage switching capture ions prepared and excited externally [12,13], and there are experiments in which the ions are produced and/or excited inside the device. There are traps designed to control or study the motion of the trapped ions in fine detail ("precision traps"), and there are strikingly simple trapping geometries that 'work', although the design at first glance may seem far away from and hardly related to the textbook examples (from paperclip electrodes to sets of collinear tubes that form nested Penning traps, and so on).…”

Section: Ion Trapsmentioning

confidence: 99%

Guest Editor’s Notes on the “Atoms” Special Issue on “Perspectives of Atomic Physics with Trapped Highly Charged Ions”

Trabert

2016

Atoms

View full text Add to dashboard Cite

Abstract:The study of highly charged ions (HCI) was pursued first at Uppsala (Sweden), by Edlén and Tyrén in the 1930s. Their work led to the recognition that the solar corona is populated by such ions, an insight which forced massive paradigm changes in solar physics. Plasmas aiming at controlled fusion in the laboratory, laser-produced plasmas, foil-excited swift ion beams, and electron beam ion traps have all pushed the envelope in the production of HCI. However, while there are competitive aspects in the race for higher ion charge states, the real interest lies in the very many physics topics that can be studied in these ions. Out of this rich field, the Special Issue concentrates on atomic physics studies that investigate highly charged ions produced, maintained, and/or manipulated in ion traps. There have been excellent achievements in the field in the past, and including fairly recent work, they have been described by their authors at conferences and in the appropriate journals. The present article attempts an overview over current lines of development, some of which are expanded upon in this Special Issue.

show abstract

Collision measurements and excited-level lifetime measurements on ions stored in Paul, Penning and Kingdon ion traps

Cited by 73 publications

References 262 publications

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Measurement of the Metastable Lifetime for the 2s²2p²¹S₀Level in O²⁺

Guest Editor’s Notes on the “Atoms” Special Issue on “Perspectives of Atomic Physics with Trapped Highly Charged Ions”

Contact Info

Product

Resources

About

Collision measurements and excited-level lifetime measurements on ions stored in Paul, Penning and Kingdon ion traps

Cited by 73 publications

References 262 publications

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Orbitrap mass spectrometry: Instrumentation, ion motion and applications

Measurement of the Metastable Lifetime for the 2s22p21S0Level in O2+

Guest Editor’s Notes on the “Atoms” Special Issue on “Perspectives of Atomic Physics with Trapped Highly Charged Ions”

Contact Info

Product

Resources

About

Measurement of the Metastable Lifetime for the 2s²2p²¹S₀Level in O²⁺