LEED

LEED is available in the large preparation chamber (OCI BDL800IR) and the small ‘top’ chamber above the analysis chamber (OCI BDL600IR). The operating parameters are the same for both units.

The camera is shared between the two - a USB connected Blackfly BFLY-U3-13S2C. Connect it to the nearby desktop PC with the long blue micro USB-3 cable. The camera viewing software is launched from the endstation desktop computer via the ‘LeedView’ shortcut.

The cable set is also shared, and the controller - a digital LPS300-D - is found inside the glass-cabinet racks.

Filament current

2.5 A

Wehnhelt

0 V

Focus @ 120eV

144 V

Grid 2&3 @ 120eV

84 V

Screen HV

3.5kV

  • There a shutter on these LEEDs. It must be closed before you fully retract the LEED

  • You will need to approach the LEED as far as it will go in order to get a decent image. Don’t forget to retract it before moving the manipulator away!

  • Power supply operation: Push power on, then push in the beam energy knob. It will go to standby. Press the ‘press for menu’ button and select ‘STANDARD’ mode from this list. To make the filament and screen voltages ramp up, press the corresponding red ‘on/off’ buttons.

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