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Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−

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Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−. / Pedersen, H. B.; Juul, H.; Mikkelsen, F. K. et al.
I: Physical Review A, Bind 106, Nr. 5, 053111, 11.2022.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

Harvard

Pedersen, HB, Juul, H, Mikkelsen, FK, Rasmussen, AP & Andersen, LH 2022, 'Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−', Physical Review A, bind 106, nr. 5, 053111. https://doi.org/10.1103/PhysRevA.106.053111

APA

Pedersen, H. B., Juul, H., Mikkelsen, F. K., Rasmussen, A. P., & Andersen, L. H. (2022). Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−. Physical Review A, 106(5), [053111]. https://doi.org/10.1103/PhysRevA.106.053111

CBE

Pedersen HB, Juul H, Mikkelsen FK, Rasmussen AP, Andersen LH. 2022. Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−. Physical Review A. 106(5):Article 053111. https://doi.org/10.1103/PhysRevA.106.053111

MLA

Pedersen, H. B. et al. "Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−". Physical Review A. 2022. 106(5). https://doi.org/10.1103/PhysRevA.106.053111

Vancouver

Pedersen HB, Juul H, Mikkelsen FK, Rasmussen AP, Andersen LH. Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−. Physical Review A. 2022 nov.;106(5):053111. doi: 10.1103/PhysRevA.106.053111

Author

Pedersen, H. B. ; Juul, H. ; Mikkelsen, F. K. et al. / Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring : Probing and modeling the dynamics of rotational cooling of OH−. I: Physical Review A. 2022 ; Bind 106, Nr. 5.

Bibtex

@article{99e1556cad8f41a2806206663315ac33,
title = "Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring: Probing and modeling the dynamics of rotational cooling of OH−",
abstract = "We describe the setup and characterization of a cryogenic multipole radio-frequency (RF) ion trap that enables the accumulation and cooling of mass-selected ions before injection into the SAPHIRA storage ring. To characterize the RF trap setup, we use OH- anions and explore the threshold photodetachment cross section measured after storage in SAPHIRA as a probe of the rotational temperature. Beyond the temperature of the ion trap assembly, cooled to 6 K, the final rotational temperature of the OH- ions is strongly influenced by the density of cooled He and the actual number of trapped ions while much less affected (possibly unaffected) by the time-varying field of the trap. To obtain rotationally cold OH- ions, the RF trap must be operated with low He density and a low number of ions. High He densities, corresponding to a strong coupling of the trapped ions and He gas, lead to a significant rotational heating of the trapped ion ensemble, and the He density seems to limit the actual reachable rotational temperature. We demonstrate that cold ions in the RF trap remain cold for at least 30 ms in the SAPHIRA (300 K) storage ring at a base pressure of ∼8×10-9mbar.",
author = "Pedersen, {H. B.} and H. Juul and Mikkelsen, {F. K.} and Rasmussen, {A. P.} and Andersen, {L. H.}",
note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society. ",
year = "2022",
month = nov,
doi = "10.1103/PhysRevA.106.053111",
language = "English",
volume = "106",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Inline cryogenically cooled radio-frequency ion trap as a universal injector for cold ions into an electrostatic ion-beam storage ring

T2 - Probing and modeling the dynamics of rotational cooling of OH−

AU - Pedersen, H. B.

AU - Juul, H.

AU - Mikkelsen, F. K.

AU - Rasmussen, A. P.

AU - Andersen, L. H.

N1 - Publisher Copyright: © 2022 American Physical Society.

PY - 2022/11

Y1 - 2022/11

N2 - We describe the setup and characterization of a cryogenic multipole radio-frequency (RF) ion trap that enables the accumulation and cooling of mass-selected ions before injection into the SAPHIRA storage ring. To characterize the RF trap setup, we use OH- anions and explore the threshold photodetachment cross section measured after storage in SAPHIRA as a probe of the rotational temperature. Beyond the temperature of the ion trap assembly, cooled to 6 K, the final rotational temperature of the OH- ions is strongly influenced by the density of cooled He and the actual number of trapped ions while much less affected (possibly unaffected) by the time-varying field of the trap. To obtain rotationally cold OH- ions, the RF trap must be operated with low He density and a low number of ions. High He densities, corresponding to a strong coupling of the trapped ions and He gas, lead to a significant rotational heating of the trapped ion ensemble, and the He density seems to limit the actual reachable rotational temperature. We demonstrate that cold ions in the RF trap remain cold for at least 30 ms in the SAPHIRA (300 K) storage ring at a base pressure of ∼8×10-9mbar.

AB - We describe the setup and characterization of a cryogenic multipole radio-frequency (RF) ion trap that enables the accumulation and cooling of mass-selected ions before injection into the SAPHIRA storage ring. To characterize the RF trap setup, we use OH- anions and explore the threshold photodetachment cross section measured after storage in SAPHIRA as a probe of the rotational temperature. Beyond the temperature of the ion trap assembly, cooled to 6 K, the final rotational temperature of the OH- ions is strongly influenced by the density of cooled He and the actual number of trapped ions while much less affected (possibly unaffected) by the time-varying field of the trap. To obtain rotationally cold OH- ions, the RF trap must be operated with low He density and a low number of ions. High He densities, corresponding to a strong coupling of the trapped ions and He gas, lead to a significant rotational heating of the trapped ion ensemble, and the He density seems to limit the actual reachable rotational temperature. We demonstrate that cold ions in the RF trap remain cold for at least 30 ms in the SAPHIRA (300 K) storage ring at a base pressure of ∼8×10-9mbar.

UR - http://www.scopus.com/inward/record.url?scp=85143200892&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.106.053111

DO - 10.1103/PhysRevA.106.053111

M3 - Journal article

AN - SCOPUS:85143200892

VL - 106

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 5

M1 - 053111

ER -