Revision as of 00:10, 13 February 2019

This seems to be a pretty popular FIB. Based on the XL30?

Refilling

Chemicals Markus is using to refill (TODO: get image of Ga bottle, process):

General procedure is to wobble the focus and minimize how much drift occurs when sweeping. Looks something like this: https://youtu.be/Ln2GDMw-Vf8

mcmaster: took a bunch of notes, but they were lost. I still have the pictures though

Problems when acquired:

LMIS empty
- Fabricated replacement using Ga from Sigma-Aldrich, tungsten wire, syringe, and DIY spot welder
Sources were refilled?
Detector tube bad (outgassed)
- Replaced
XeF2 leak. Damaged stage gears
- Removed XeF2 GIS and blanked off
- Bought similar replacement gears, machined to fit
- TOOD: install new seals. Requires special XeF2 rated version not in other GIS
Faulty power supply
- Repaired module (replaced resistor?)
Bad seal on pneumatic stabalizer
- Bought (silicone?) sheet to repair
Turbo pump sometimes noisy, but seems to still work

GIS cluster. Note one of the injectors missing (more on it below)

A new Pt injector tip:

This XeF2 injector sat for a long time in storage. The XeF2 ate through the seals and caused considerable damage in the FIB

Test edit after calibration (cut trace):

@@ Line 23: / Line 23: @@
 * LMIS empty
 ** Fabricated replacement using Ga from Sigma-Aldrich, tungsten wire, syringe, and DIY spot welder
+* Sources were refilled?
 * Detector tube bad (outgassed)
 ** Replaced
@@ Line 31: / Line 32: @@
 * Faulty power supply
 ** Repaired module (replaced resistor?)
+* Bad seal on pneumatic stabalizer
+** Bought (silicone?) sheet to repair
+* Turbo pump sometimes noisy, but seems to still work
 == GIS ==