Cryomagnetics pioneered much of the
work for multi-axis superconducting magnets and
systems in the 1980's. Multi-axis magnets of all
configurations have been manufactured for both end-users
and OEM integrators alike over the years.
Recently, popularity of multi-axis
magnet systems has risen dramatically. Researchers
benefit from the ease and precision of rotating magnetic
field instead of physically rotating the sample. Higher
fields are now possible with larger vector sum angles
that ever before.
Systems such as pictured at left are
cryogen free. This particular system contained a 3-axis
superconducting magnet assembly:
• 5T in the Z-axis
• 1T in the X-axis
• 1T in the Y-axis
As the world leading manufacturer of
superconducting magnets for
gyrotron applications
(gyrotron magnet systems typically have five
superconducting magnets included for shaping field – a
true challenge for multiple axis coils), Cryomagnetics
has multiples of these successful installations worldwide.
Most gyrotron magnet systems have
been cryogen-free since 2000, making Cryomagnetics the
most experienced manufacturer of cryogen-free multi-axis
magnet systems.
In addition to manufacturing
multi-axis systems in room temperature bores as pictured
above, we can also provide integrated VTI systems in
both cryogen-free and
traditional bucket dewar
systems.
Some of the more popular multi-axis
magnet configurations include:
| 2-Axis |
3-Axis |
| 7T/2T (7 tesla Z-Axis; 2
tesla X-axis) |
1T/1T/1T (1 tesla Z-Axis; 1
tesla X-axis; 1 tesla Y-axis) |
| 8T/2T (8 tesla Z-Axis; 2
tesla X-axis) |
5T/1T/1T (5 tesla Z-Axis; 1
tesla X-axis; 1 tesla Y-axis) |
| 9T/1T (9 tesla Z-Axis; 1
tesla X-axis) |
7T/1T/1T (7 tesla Z-Axis; 1
tesla X-axis; 1 tesla Y-axis) |
| 9T/4T (9 tesla Z-Axis; 4
tesla X-axis) |
9T/1T/1T (9 tesla Z-Axis; 1
tesla X-axis; 1 tesla Y-axis) |
Example Multi-Axis
Superconducting Magnet System Quotation
Use this example to help define your specific
needs...
3-Axis (7-1-1) with 3.5”
Room Temperature Bore
Liquid Cryogen-free Superconducting Magnet System
Superconducting Magnet
Multi-Axis Configuration.
1 tesla vector sum.
Installed in cryostat described below
Z-Coil (Solenoid) Specifications
Solenoid configuration.
7 Tesla central field (4.2K).
+ 0.1% central field
homogeneity over a 10mm DSV.
No persistent mode switch installed, driven mode only
(persistent mode switch available as an option)
Fully protected against damage due to quench.
X-Coil Specifications
Split-Pair configuration.
1 Tesla central field (4.2K).
+ 0.5% central field
homogeneity over a 10mm DSV.
No persistent mode switch installed, driven mode only
(persistent mode switch available as an option).
Fully protected against damage due to quench.
Y-Coil Specifications
Split-Pair configuration.
1 Tesla central field (4.2K).
+ 0.5% central field
homogeneity over a 10mm DSV.
Inductance of approximately 30 henries.
No persistent mode switch installed, driven mode only
(persistent mode switch available as an option).
Fully protected against damage due to quench.
Cryostat
Vertical room temperature bore configuration.
Aluminum construction.
Evacuation valve, safety positive pressure relief
devices.
3.50 inches (~ 89 mm) clear vertical bore diameter.
3 pairs of high temperature superconducting current
leads installed.
Electrical feedthrough for system diagnostics, 5 meter
long instrumentation cable.
(4) ruthenium-oxide temperature sensors installed for
system diagnostics.
Lifting lugs.
Removable legs installed, length to be determined.
Cooled by a Sumitomo 4.2K cryocooler.
Model TM-600 Temperature Monitor
CE-marked.
Used to monitor temperature of the superconducting
magnet system.
Bright, two line vacuum fluorescent display.
RS-232 computer interface.
Standard curves for many temperature sensors.
Capability to store custom curves.
Temperature displayed in Kelvin, Celsius, Fahrenheit, or
expressed as a resistance.
Audible alarm (can be silenced).
Control output with high and low setpoints.
Monitors most resistive temperature sensors (ruthenium
oxide, platinum, carbon, etc.).
Simple keypad with good tactile response.
LabVIEW® drivers available at no extra charge.
See photo and further description at
www.cryomagnetics.com/tm-600.htm.
Option 2: IEEE-488.2 Computer Interface installed.
Option 3: Two Sensor Readout with separate high and low
controller setpoints installed. Simultaneous sensor
monitoring.
Option 4: 19” Rack Mountable Cabinet installed.
Model 4G-100 Integrated Superconducting Magnet
Power System
The Model 4G-100 is a single output model with output
current up to ± 100 amperes at 800 watts (± 10 volts up
to 80 amperes, ± 8 volts at 100 amperes).
Used to power the Z-coil (7T Solenoid).
4-quadrant, true bipolar systems featuring smooth sweeps
through zero.
Automatic quench detection and protection.
A full color, backlit TFT liquid crystal display clearly
indicates output current, voltage, limit settings, and
system status.
Current settability of 0.1 milliamps
Five (5) programmable sweep rate ranges.
Persistent switch heater power supply.
15 foot length output cables.
USB, IEEE-488.2, and Ethernet computer interfaces
standard.
Safety interlocks for persistent switch enable/disable
and changing of important magnet parameters and limits.
Visual confirmation of current present in leads will
alert users to be mindful of safety when operating the
power supply, even if line power is off.
Model 4G-Dual Integrated Superconducting Magnet
Power System
The Model 4G-Dual contains two independently
operable ± 100 amperes at 800 watt power modules.
Control of both supplies is easily accomplished via the
front panel or via computer control.
Used to independently power each Transverse coil (X and
Y).
4-quadrant, true bipolar systems featuring smooth sweeps
through zero.
Automatic quench detection and protection.
A full color, backlit TFT liquid crystal display clearly
indicates output current, voltage, limit settings, and
system status.
Current settability of 0.1 milliamps
Five (5) programmable sweep rate ranges.
Two (2) independent persistent switch heater power
supplies.
15 foot length output cables.
USB, IEEE-488.2, and Ethernet computer interfaces
standard.
Safety interlocks for persistent switch enable/disable
and changing of important magnet parameters and limits.
Visual confirmation of current present in leads alerts
users to be mindful of safety when operating the power
supply, even if line power is off.
Electronics Cabinet
19 inch inside width, industry-standard rack
mount cabinet.
28.0 inch inside height.
Houses all quoted electronics.
Pre-wired with single 20’ length input power cable.
Cryomagnetics Navigator™ Software Control System
Navigator™ is a Windows-based software package
that allows complete automation of the superconducting
magnet system control electronics.
The release provided with this system contains basic
control and feedback of the quoted electronics.
