Load lock chamber

The load lock (LL) is attached to the upper chamber, and equipped with a linear transfer arm constituting of a sample bank to store four sample plates.

If your sample is air sensitive and cleaving may not be possible, please contact the beamline responsible and we will exchange the linear transfer system with an argon suitcase constituting of four sample plates bank. In this case, you, the user, may use Ar glove box available in one of the Chemistry labs at MAX IV to transfer samples into the samples plate bank of Ar suitcase. Purge the LL with Ar several times (5-6 times) before opening the suitcase valve, after which start the roughing pump followed by the turbo pump and wait till the pressure in LL is lower than 5 x 10^-7 mbar.

If you want to cleave the sample, you dont need to use the Ar suitcase. Introduce the sample plates from the LL door into the sample bank. After reaching appropriate pressure in the LL (lower than 5 x 10^-7 mbar), you may cleave with the transfer wobble stick.

How to pump Load lock chamber

  1. Close all flanges and load lock door.

  2. open angle valve of roughing pump (KASHIYAMA)

  3. Start TMP(Pffeiffer). Press (Click) star1. t button.

  4. Wait for TMP reach normal oepration

Typical vaccum pressre of the load lock (LL) pressure is in the order of 10^-5 mbar just after pumping. .

How to vent Load lock chamber

  1. Close Valves:

    1. Ensure gate valve between upper chamber and the load Lock chamber is closed to isolate the chamber.

    2. Close gate valvues to beamline and RIXS spectrometer

  2. Close angle valve of roughing pump (KASHIYAMA)

  3. open valve of N2 gas line

  4. Stop TMP(Pffeiffer). Press (Click) start butto`?n.

  5. Wait for TMP stop and start veting automatically

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