| dc.contributor |
Snow, William M |
|
| dc.contributor |
Klein, Susan B |
|
| dc.creator |
Khosravi, Marjan |
|
| dc.date |
2015-02-10T17:10:08Z |
|
| dc.date |
2015-02-10T17:10:08Z |
|
| dc.date |
2014-12 |
|
| dc.date |
2014 |
|
| dc.date.accessioned |
2023-02-21T11:19:16Z |
|
| dc.date.available |
2023-02-21T11:19:16Z |
|
| dc.identifier |
http://hdl.handle.net/2022/19413 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/252976 |
|
| dc.description |
Thesis (M.S.) - Indiana University, Physics, 2014 |
|
| dc.description |
Various studies have been done on exotic spin-dependent short-range forces in the mm to μm range. We are using an ensemble of optically polarized $^3$He gas and an unpolarized test mass to search for such forces. The presence or absence of a Nuclear Magnetic Resonance (NMR) frequency shift when an unpolarized mass is moved away and towards the $^3$He is our experimental signal [1]. It is very important to have no influence from the magnetism of the mass itself on the NMR frequency measurement. This research explicitly deals with preparation and characterization of unpolarized non-magnetic test masses using Gallium/Indium alloys that have very low magnetic susceptibility. We believe the current limit on the NMR frequency shift ceramic (2.6 ± 1.7 10$^{-5}$ Hz), salt water (-0.8 ± 2.6 10$^{-5}$ Hz) due to such spin-dependent forces from a previous experiment using Macor ceramic and 1.02% MnCl$_2$ solution can be improved with the use of these lower magnetic susceptibility test masses. |
|
| dc.language |
en |
|
| dc.publisher |
[Bloomington, Ind.] : Indiana University |
|
| dc.subject |
Fifth Force |
|
| dc.subject |
Gallium-Indium |
|
| dc.subject |
Magnetic Susceptibility |
|
| dc.subject |
Non-Magnetic mass |
|
| dc.subject |
Physics |
|
| dc.subject |
Nuclear physics |
|
| dc.title |
DEVELOPMENT OF GALLIUM-INDIUM ALLOYS AS NONMAGNETIC TEST MASSES FOR SPIN-DEPENDENT SHORT-RANGE FORCE EXPERIMENTS |
|
| dc.type |
Thesis |
|