ELDOR Upgrade Unit: E580-400U

Distance Determination

Distance Determination is the key application of Pulsed ELDOR. Bruker supports this rapidly growing field with the introduction of the ELDOR Upgrade Unit E580-400U. It is fully software-controlled and back-compatible to all ELEXSYS E580 and E680 spectrometers.

Typical experiments that can be performed with the ELDOR unit:

Saturation Recovery ELDOR to measure molecular dynamics.

ELDOR-detected NMR to measure the ENDOR-equivalent nuclear spin spectrum.

DEER to measure electron-electron spin distances.

Electron-Nuclear-Electron Triple Resonance to measure the hyperfine-selective ENDOR spectrum.

Upgrade Pathways

ELDOR at X-Band

Plug-in for SuperX-FT bridge
Retrofit to E580-1010 CW/FT microwave bridges

ELDOR at L-Band

Plug-in for SuperL-FT bridge

ELDOR at S-Band

Plug-in for SuperS-FT bridge

ELDOR at Q-Band

Plug-in for SuperQ-FT bridge

ELDOR at W-Band

Plug-in for IF bridge
Retrofit to E680-1010 CW/FT microwave bridges

Specifications

Pulsed ELDOR unit
Digitally controlled solid-state microwave oscillator
Frequency range: 9.2 - 10 GHz
Pulse switching unit with 80 dB isolation
Amplitude control with 30 dB dynamic range
Fully software controlled

DEER: Multi-frequency and Precise

Precise measurement of electron-electron interspin distances in the range of 20-80 Angstrom becomes more and more important. With our ELEXSYS E580Q as well as our E680 system and the ELDOR upgrade option, DEER distance measurement experiments are now commonly employed at Q-band amd W-band. The increase to frequency provides a clear increase in sensitivity in comparison to X-band DEER measurements.