Polarimetry on dense samples of spin-polarized 3He by magnetostatic detection

Autor:	Michael Ebert, E. Wilms, Werner Heil, Reinhard Surkau
Rok vydání:	1997
Předmět:	Physics Nuclear and High Energy Physics Magnetometer business.industry Polarimetry Polarization (waves) Magnetostatics Molecular physics Fluxgate compass law.invention Optics law Adiabatic process business Instrumentation
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 401:491-498
ISSN:	0168-9002
DOI:	10.1016/s0168-9002(96)01220-x
Popis:	A very sensitive low-field fluxgate magnetometer is used to detect the static magnetic field produced by dense samples of spin-polarized 3He gas contained in spherical glass cells at pressures around several bars. The 3He nuclear polarization can be extracted with high precision ΔP P by utilizing magnetostatic detection in combination with adiabatic fast-passage spin reversal. The polarization losses can be kept well below 0.1% thus making this type of polarimetry almost non-destructive. More simply even, P can be measured with reduced accuracy by the change of field when the cell is removed from the fluxgate. In this case the accuracy is limited to about 10% due to the uncertainties about the susceptibilities of the cell walls.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::03578fcb2414c80ac78babb2b08441bf https://doi.org/10.1016/s0168-9002(96)01220-x Zobrazit plný text záznamu Full Text from ScienceDirect