Short-range inverse-square law experiment in space
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Short-range inverse-square law experiment in space
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| Creator |
Strayer, Donald M.
Paik, Ho Jung Moody, M. Vol |
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| Subject |
3-й Международный семинар по физике низких температур в условиях микрогравитации
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| Description |
The objective of ISLES (inverse-square law experiment in space) is to perform a null test of Newton`s law on the ISS with a resolution of one part in 10⁵ at ranges from 100 mm to 1 mm. ISLES will be sensitive enough to detect axions with the strongest allowed coupling and to test the string-theory prediction with R≥ 5 mm. To accomplish these goals on the rather noisy International Space Station, the experiment is set up to provide immunity from the vibrations and other common-mode accelerations. The measures to be applied for reducing the effects of disturbances will be described in this presentation. As designed, the experiment will be cooled to less than 2 K in NASA`s low temperature facility the LTMPF, allowing superconducting magnetic levitation in microgravity to obtain very soft, low-loss suspension of the test masses. The low-damping magnetic levitation, combined with a low-noise SQUID, leads to extremely low intrinsic noise in the detector. To minimize Newtonian errors, ISLES employs a near-null source of gravity, a circular disk of large diameter-to-thickness ratio. Two test masses, also disk-shaped, are suspended on the two sides of the source mass at a distance of 100 mm to 1 mm. The signal is detected by a superconducting differential accelerometer, making a highly sensitive sensor of the gravity force generated by the source mass.
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| Date |
2018-01-14T11:02:06Z
2018-01-14T11:02:06Z 2003 |
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| Type |
Article
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| Identifier |
Short-range inverse-square law experiment in space / Donald M. Strayer, Ho Jung Paik M. Vol Moody // Физика низких температур. — 2003. — Т. 29, № 6. — С. 637-647. — Бібліогр.: 18 назв. — англ.
0132-6414 PACS: 04.20.-q http://dspace.nbuv.gov.ua/handle/123456789/128868 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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