HiPER’s unique quasi-optical design also allows for large area, non-resonant sample holders that exhibit increased concentration sensitivity for CW EPR relative to commercial W-band instruments.
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Details
- Frequency: 94 GHz
- Field Strength: 9 tesla
- Bore Diameter: 88 mm
- Homogeneity: 20 ppm
- Number of input and output leads possible: 2
- Temperature: 4 to 300 K
- Sensitivity: Concentration sensitivity at 290K is ~ 1 µM nitroxide spins
- Sample Size: 30 to 600 µL
- Open for users who would pay for magnet time: Yes
- Air-sensitive or reactive sample
- Frozen solutions
- Liquids
- Powders & polycrystals
- Single crystal
- Thin films
Images
Click on images for details.
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Detail shot.
Detail shot.
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Wide view.
Wide view.
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Using the instrument.
Using the instrument.
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Detail shot.
Detail shot.
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Detail shot.
Detail shot.
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Wide view.
Wide view.
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9 tesla magnet.
9 tesla magnet.
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Induction mode sample holder.
Induction mode sample holder.
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Thin layer sample holder.
Thin layer sample holder.
https://nationalmaglab.org/user-facilities/emr/instruments-emr/hiper?tmpl=component&print=1#sigProIde347fdb7fa
Related Publications
Kaur, P., et al, Selective Membrane Disruption Mechanism of an Antibacterial γ-AApeptide Defined by EPR Spectroscopy, Biophysical J., 110, 8, 1789-1799 (2016) Read online
Song, L., et al, Towards Increased Concentration Sensitivity for Continuous Wave EPR Investigations of Spin-Labeled Biological Macromolecules at High Fields, Magn. Reson., 265, 188-196 (2016) Read online
Cruickshank PA, et al, A kilowatt pulsed 94 GHz electron paramagnetic resonance spectrometer with high concentration sensitivity, high instantaneous bandwidth, and low dead time, Rev Sci Instrum. 2009 Oct;80(10):103102. doi: 10.1063/1.3239402 Read online