Gradients and Shims

Applications and Advanced Features

Animal Imaging

Micro-Imaging

Solids and Diffusion

Image Gallery

Gradient Linearity Definitions

Gradient Design Principles

Additional Information

MICRO-IMAGING SHIELDED GRADIENTS - BFG SERIES

Most frequently applied to vertical bore magnets used for spectroscopy, RRI's microscopy gradients operate at strengths of 1,000 mT/m, with very high gradient uniformity and short rise times. Microscopy gradients are fully compatible with industry standard shim systems, including RRI's serial and matrixshim RT shims.

Please click here to view images obtained with RRI's micro-imaging gradient coils.

RRI's gradients for microscopy can be operated with most gradient amplifiers and are compatible with the high stability BFH gradient amplifiers.

MODEL BFG		73/45-1000	73/55-500
Maximum current input [A]		100	80
Maximum voltage input [V]		100	100
Maximum Gradient strength [mT/m]		1,000	500
Duty cycle [%] and gradient strength [mT/m]	4%	1,000	500
	50%	250	100
	100%	100	50
Rise time, 0.5% to 99.5% [ms]		65	65
DSV [mm]		30	45
Field linearity [+/-%]		4	4
Z0 compensation coil		Yes	Yes
Shielding		Yes	Yes
Second order shims		External	External
Extended 2^nd, 3^rd and 4^th order shims		External	External
OD [mm]		73	73
ID [mm]		45	55
Cooling		Water	Water
Monitors	Temperature	PT 100 or T
	Water flow	Interlock required

Please see also specifications of compatible shim systems. Special gradient systems for solids and diffusion studies are also available.

Micro-imaging Gradient
Model BFG-73/45-1000

45 mm ID, 1,000 mT/m gradient strength