Collision cooling of ions stored in quadrupole radio-frequency trap

Yoshiki Moriwaki; Maki Tachikawa; Yoshiharu Maeno; Tadao Shimizu

doi:10.1143/JJAP.31.L1640

Collision cooling of ions stored in quadrupole radio-frequency trap

Yoshiki Moriwaki, Maki Tachikawa, Yoshiharu Maeno, Tadao Shimizu

Department of Physics

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

We present a novel model for collisional energy transfer between ions and neutral molecules in the quadrupole radio-frequency trap. Calculated results quantitatively reproduce the dependence of the ion temperature T_i on the buffer gas pressure P_n, observed on Mg⁺ ions and several collision partners (H₂, He, and CH₄). It is deduced from the present model that Ti is proportional to Pn^1/3 in the low-pressure range below 10^-6 Torr, in good agreement with the experimental results.

Original language	English
Pages (from-to)	L 1640-L 1643
Journal	Japanese Journal of Applied Physics
Volume	31
Issue number	11
DOIs	https://doi.org/10.1143/JJAP.31.L1640
State	Published - 1992/11

Keywords

Collision cooling
Elastic collision
Mathieu motion
Mg ion
Rf heating
Rf ion trap

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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10.1143/JJAP.31.L1640

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title = "Collision cooling of ions stored in quadrupole radio-frequency trap",

abstract = "We present a novel model for collisional energy transfer between ions and neutral molecules in the quadrupole radio-frequency trap. Calculated results quantitatively reproduce the dependence of the ion temperature Ti on the buffer gas pressure Pn, observed on Mg+ ions and several collision partners (H2, He, and CH4). It is deduced from the present model that Ti is proportional to Pn1/3 in the low-pressure range below 10-6 Torr, in good agreement with the experimental results.",

keywords = "Collision cooling, Elastic collision, Mathieu motion, Mg ion, Rf heating, Rf ion trap",

author = "Yoshiki Moriwaki and Maki Tachikawa and Yoshiharu Maeno and Tadao Shimizu",

year = "1992",

month = nov,

doi = "10.1143/JJAP.31.L1640",

language = "英語",

volume = "31",

pages = "L 1640--L 1643",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

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TY - JOUR

T1 - Collision cooling of ions stored in quadrupole radio-frequency trap

AU - Moriwaki, Yoshiki

AU - Tachikawa, Maki

AU - Maeno, Yoshiharu

AU - Shimizu, Tadao

PY - 1992/11

Y1 - 1992/11

N2 - We present a novel model for collisional energy transfer between ions and neutral molecules in the quadrupole radio-frequency trap. Calculated results quantitatively reproduce the dependence of the ion temperature Ti on the buffer gas pressure Pn, observed on Mg+ ions and several collision partners (H2, He, and CH4). It is deduced from the present model that Ti is proportional to Pn1/3 in the low-pressure range below 10-6 Torr, in good agreement with the experimental results.

AB - We present a novel model for collisional energy transfer between ions and neutral molecules in the quadrupole radio-frequency trap. Calculated results quantitatively reproduce the dependence of the ion temperature Ti on the buffer gas pressure Pn, observed on Mg+ ions and several collision partners (H2, He, and CH4). It is deduced from the present model that Ti is proportional to Pn1/3 in the low-pressure range below 10-6 Torr, in good agreement with the experimental results.

KW - Collision cooling

KW - Elastic collision

KW - Mathieu motion

KW - Mg ion

KW - Rf heating

KW - Rf ion trap

UR - http://www.scopus.com/inward/record.url?scp=0000870571&partnerID=8YFLogxK

U2 - 10.1143/JJAP.31.L1640

DO - 10.1143/JJAP.31.L1640

M3 - 学術論文

AN - SCOPUS:0000870571

SN - 0021-4922

VL - 31

SP - L 1640-L 1643

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 11

ER -

Collision cooling of ions stored in quadrupole radio-frequency trap

Abstract

Keywords

ASJC Scopus subject areas

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