公开(公告)号：DE19742548A1

公开(公告)日：1999-04-08

申请号：DE19742548

申请日：1997-09-26

Applicant: OTTEN ERNST WILHELM PROF DR

Inventor： AIDAM ELKE ,  EBERT MICHAEL ,  GROSMANN TINO ,  HEIL WERNER DR ,  OTTEN ERNST W PROF DR ,  ROHE DANIELA ,  SURKAU REINHARD DR

IPC: G01R33/28 ,  A61B5/055 ,  G21F5/00 ,  G21F5/015

Abstract: The invention provides a magnetically shielded container (1) having disposed in parallel opposed position on an axis (S) thereof magnetic field homogenizing pole shoes (10.1, 10.2), having disposed about said pole shoes a magnetically shielded yoke (2), said pole shoes and yoke enclosing a magnetic chamber (26), said container further comprising magnetic field sources (2.4, 2.5) disposed about and radially distanced from said axis whereby there exists within said chamber substantially homogenous magnetic field Bo oriented in the direction of said axis and whereby there is a usable volume within said chamber where the ratio of the magnetic field gradient in the direction transverse to said axis to said magnetic field Bo has a value of no more than 1.5 x 10 /cm. By virtue of the very low ratio of weight to volume that is achievable with this construction, the containers according to the invention are economical to produce and especially suited to transporting polarized gasses.

公开(公告)号：DE19742543A1

公开(公告)日：1999-04-08

申请号：DE19742543

申请日：1997-09-26

Applicant: OTTEN ERNST WILHELM PROF DR

Inventor： AIDAM ELKE ,  EBERT MICHAEL ,  GROSMANN TINO ,  HEIL WERNER DR ,  OTTEN ERNST W PROF DR ,  ROHE DANIELA ,  SURKAU REINHARD DR

IPC: G01N24/00 ,  G01N24/08

Abstract: The invention relates to a method for determining the degree of polarisation (P) of a nuclear spin polarised gas, in particular He, Xe, in which the nuclear spin polarised gas is placed in a container, comprising determining the magnetic field Bd of the polarised gas by measuring the magnetic dipole field emerging therefrom and then determining from Bd the degree of polarisation of the gas.