UHV-compatible magnetic material for atom optics

S. A. Hopkins; E. A. Hinds; M. G. Boshier

doi:10.1007/s003400100607

UHV-compatible magnetic material for atom optics

S. A. Hopkins, E. A. Hinds, M. G. Boshier

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

Abstract

Magnetic videotape is of great interest for trapping and guiding cold atomic vapors, but was hitherto considered unsuitable for manipulating Bose-Einstein condensates (BEC) because of the presumed evolution of gas under vacuum. We have studied the outgassing in vacuum of the most promising tape, Ampex 398 Betacam SP. We find that after cleaning in ethanol and baking for 200 h at 100 °C the magnetic patterns are undisturbed and the outgassing is remarkably small: 4 × 10-10 Torr 1s-1cm-2, due mostly to hydrogen. This makes the tape exceedingly attractive for manipulation of BEC.

Original language	English
Pages (from-to)	51-54
Number of pages	3
Journal	Applied Physics B: Lasers and Optics
Volume	73
Issue number	1
DOIs	https://doi.org/10.1007/s003400100607
Publication status	Published - 2001

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title = "UHV-compatible magnetic material for atom optics",

abstract = "Magnetic videotape is of great interest for trapping and guiding cold atomic vapors, but was hitherto considered unsuitable for manipulating Bose-Einstein condensates (BEC) because of the presumed evolution of gas under vacuum. We have studied the outgassing in vacuum of the most promising tape, Ampex 398 Betacam SP. We find that after cleaning in ethanol and baking for 200 h at 100 °C the magnetic patterns are undisturbed and the outgassing is remarkably small: 4 × 10-10 Torr 1s-1cm-2, due mostly to hydrogen. This makes the tape exceedingly attractive for manipulation of BEC.",

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AB - Magnetic videotape is of great interest for trapping and guiding cold atomic vapors, but was hitherto considered unsuitable for manipulating Bose-Einstein condensates (BEC) because of the presumed evolution of gas under vacuum. We have studied the outgassing in vacuum of the most promising tape, Ampex 398 Betacam SP. We find that after cleaning in ethanol and baking for 200 h at 100 °C the magnetic patterns are undisturbed and the outgassing is remarkably small: 4 × 10-10 Torr 1s-1cm-2, due mostly to hydrogen. This makes the tape exceedingly attractive for manipulation of BEC.

U2 - 10.1007/s003400100607

DO - 10.1007/s003400100607

M3 - Article

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JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

SN - 0946-2171

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ER -

UHV-compatible magnetic material for atom optics

Abstract

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