High end magnetic resonance imaging system YS BS150 1.5 T MRI scanners active shielding method mri mashine

No.

Item

Specification

1

Magnet System

1.1

Magnet Type

Superconductive

1.2

Field Strength

1.5T

1.3

Shielding Method

Active

1.4

Shimming Method and Type

Active + Passive + Dynamic

1.5

Magnet stability

≤0.1ppm/h

1.6

Homogeneity (DSV, VRMS)

1.6.1

45cm

≤0.832ppm

1.6.2

40cm

≤0.323ppm

1.6.3

30cm

≤0.107ppm

1.6.4

20cm

≤0.041ppm

*1.6.5

10cm

≤0.01ppm

*1.7

Length of magnet (exclude cover)

≤157cm

1.8

Inner diameter of magnet

≥600mm

*1.9

5 Gauss fringe field(X,Y,Z axis)

≤2.5m x 2.5m x 4.0m

1.10

Total capacity of liquid helium (100% liquid helium full filled)

<800L

*1.11

Filling liquid helium period

≥4 Years

1.12

Liquid helium “zero” consumption technology

Yes