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Bruker Optics Diffusion

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Diffusion

The Diff30 and Diff50 probes are made for standard bore and wide bore magnets respectively. They consist of a probe body, a plug on gradient system and exchangeable rf-coils. The rf-coils can be single or double tuned with diameters between of 5, 8 and 10 mm.     
     
The z-gradient diffusion probes Diff30 and Diff50 and the xyz triple axis Micro5 micro-imaging probe differ only by the plug on gradient system. This enables an easy switch between micro-imaging and diffusion experiments, just by mounting the required gradient system on the same probe body. The exchangeable rf-coils are compatible between the probes.

Models

Diff30
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Additional Specifications Diff30 Gradient properties
Name: Diff30
Gradient system part number: M81113
Type: Diffusion probe
Compatibility with magnet systems: SB/WB/SWB
Gradient Direction: z
Theoretical gradient sensitivity: 30 G/cm/A, 300 mT/m/A, 0.3 T/m/A
Typical gradient strength @ 40 A: > 1140 G/cm, > 11400 mT/m, > 11.4 T/m
Typical gradient strength @ 60 A: > 1710 G/cm, > 17100 mT/m, > 17.1 T/m
ID/OD: 19/40 mm
Peak-peak deviation from constant gradient in a cylinder of 5 mm diameter and 14 mm length: < 2.5 %
Inductance: ? 180 ΜH
Resistance: ? 1.04 Ω
Rise time 10 - 90 % of 40 A, 120V using a GREAT40 amplifier: ? 300 Μs
Cooling: water
Maximum current tested: 60 A
Maximum pulse length at maximum current: 5 ms
Maximum dc current, at different cooling water temperatures, flow rate ? 0.5 l/min: 6.2 A @ 12 °C, 5.3 A @ 25 °C, 4.0 A @ 40 °C
Duty cycles with water cooling at 25° C, averaged over 1s.: 1.3 % @ 40 A, 0.57 % @ 60 A

Diff30 RF properties
Exchangeable coils:
Single frequency coils, sample diameters 5, 8, 10 mm: 1H or 19F or 1H to 19F tuneable or X nuclei above 40 MHz4
Double frequency coils, sample diameters 5, 8 mm, can be built in direct or inverse detection mode:
  • 1H channel: 1H or 19F or 1H to 19F tuneable
  • X channel: X nuclei above 40 MHz2

    Diff30 Temperature properties
    Standard coils, sample diameter = 5 mm
    Specified temperature range: -40 °C – 80 °C, 233 K – 353 K
    Safety limit: -100 °C – 80 °C, 173 K – 353 K
    Standard coils, sample diameter >5 mm
    Specified temperature range: Ambient temperature, i.e. gradient water cooling temperature
    Safety limit: -100 °C – 60 °C, 173 K – 333 K
    Note: Safety limits are only valid, while the cooling water is running at a water temperature between 5 °C and 50 °C
  • Diff50
    Attributes

    Edit Model

    Additional Specifications Diff50 Gradient properties
    Name: Diff50
    Gradient system part number: W122305
    Type: Diffusion probe
    Compatibility with magnet systems: WB/SWB
    Gradient Direction: z
    Theoretical gradient sensitivity: 50 G/cm/A, 500 mT/m/A, 0.5 T/m/A
    Typical gradient strength @ 40 A: > 1900 G/cm, > 19000 mT/m/m, > 19 T/m
    Typical gradient strength @ 60 A: > 2850 G/cm, > 28500 mT/m, > 28.5 T/m
    ID/OD: 19/72 mm
    Peak-peak deviation from constant gradient in a cylinder of 5 mm diameter and 14 mm length: < 5 %
    Inductance: ? 540 ΜH
    Resistance: ? 830 mΩ
    Rise time 10 - 90 % of 40 A, 120V using a GREAT40 amplifier: ? 500 Μs
    Cooling: water
    Maximum current tested: 60 A
    Maximum pulse length at maximum current: 5 ms
    Maximum dc current, at different cooling water temperatures, flow rate ? 0.5 l/min: 6 A @ 12 °C, 5.1 A @ 25 °C, 3.8 A @ 40 °C
    Duty cycles with water cooling at 25° C, averaged over 1s.: 1.1 % @ 40 A, 0.52 % @ 60 A

    Diff50 RF properties
    Exchangeable coils:
    Single frequency coils, sample diameters 5, 8, 10 mm: 1H or 19F or 1H to 19F tuneable or X nuclei above 40 MHz4
    Double frequency coils, sample diameters 5, 8 mm, can be built in direct or inverse detection mode:
  • 1H channel: 1H or 19F or 1H to 19F tuneable
  • X channel: X nuclei above 40 MHz2

    Diff50 Temperature properties
    Standard coils, sample diameter = 5 mm
    Specified temperature range: -40 °C – 80 °C, 233 K – 353 K
    Safety limit: -100 °C – 80 °C, 173 K – 353 K
    Standard coils, sample diameter: >5 mm
    Specified temperature range: Ambient temperature, i.e. gradient water cooling temperature
    Safety limit: -100 °C – 60 °C, 173 K – 333 K
    Note: Safety limits are only valid, while the cooling water is running at a water temperature between 5 °C and 50 °C
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