AJA service - Revision history

Harry: /* Standard maintenance */

2026-09-14T09:09:56Z

Standard maintenance

← Older revision		Revision as of 09:09, 14 September 2026
Line 24:		Line 24:
	#** Top up target material if needed, log amount.		#** Top up target material if needed, log amount.
	# If Sensor Life < 70% change the QCM. You can do this by sticking your hand through the loadlock. Be careful not to touch the mirror.		# If Sensor Life < 70% change the QCM. You can do this by sticking your hand through the loadlock. Be careful not to touch the mirror.
	#* AJA1: gold plated 6 MHz. There are two. Sensor 2 is towards the end of the assembly. It is a bit tricky to get out, even with the sensor shutter open.		#* AJA1: gold-plated 6 MHz. There are two. Sensor 2 is towards the end of the assembly. It is a bit tricky to get out, even with the sensor shutter open.
	#* AJA2: ~~silver~~ plated 6 MHz ~~(doesn't fail immediately during Pt evaporation)~~		#* AJA2: gold-plated 6 MHz.
	# Push the linear drive back inside, screw the nuts back on the bolts		# Push the linear drive back inside, screw the nuts back on the bolts
	# Check if you can see the crucible in the mirror. If not:		# Check if you can see the crucible in the mirror. If not:

Harry: /* Checklist */

2026-09-14T09:06:36Z

Checklist

← Older revision		Revision as of 09:06, 14 September 2026
Line 41:		Line 41:

	=== Checklist ===		=== Checklist ===
	* Weigh all crucibles and top up if ~~nessecary~~		* Weigh all crucibles and top up if necessary.
	* Chisel additional material flaking around the crucible		*: Include the following information:
	** Vacuum and ensure that there are no stray flakes at the filament		** '''Crucible + melt before refill (g)'''
	* Check that the driving rods and bearings are in place and in good shape		** '''Crucible + melt + pellets after refill (g)'''
			* Chisel off additional material flaking around the crucible
			** Vacuum and ensure that there are no stray flakes on the filament
			* Check that the driving rods and bearings are in place and in good shape (test the mounting screws)
	* Replace QCMs if life <60%		* Replace QCMs if life <60%
	** Verify that the mirror ~~is in the correct place~~		** Verify that you didn't touch the mirror.
	** If the ~~wafer~~ is ~~not~~ reflective ~~anymore~~, replace		* If the mirror is no longer reflective, replace
	* In case you opened that top lid:		* Verify all shutters are in the correct position
	** Verify all shutters are in the correct position

	== Cryo pump regeneration ==		== Cryo pump regeneration ==

Harry: /* Maintenance */

2026-09-14T09:02:00Z

Maintenance

← Older revision		Revision as of 09:02, 14 September 2026
Line 2:		Line 2:

	= Maintenance =		= Maintenance =

	== Standard maintenance ==		== Standard maintenance ==

	# Log cryo temp, base pressure.		# Log cryo temp, base pressure.
	# Close cryo gate valve.		# Close cryo gate valve.
Line 41:		Line 39:
	# Open cryo gate valve at own discretion. Turbo helps pumping down to ~1e-6 Torr. At lower pressures loadlock gate valve should be closed and only cryo should be open to the main chamber.		# Open cryo gate valve at own discretion. Turbo helps pumping down to ~1e-6 Torr. At lower pressures loadlock gate valve should be closed and only cryo should be open to the main chamber.
	# Write a message to the users!		# Write a message to the users!

			=== Checklist ===
			* Weigh all crucibles and top up if nessecary
			* Chisel additional material flaking around the crucible
			** Vacuum and ensure that there are no stray flakes at the filament
			* Check that the driving rods and bearings are in place and in good shape
			* Replace QCMs if life <60%
			** Verify that the mirror is in the correct place
			** If the wafer is not reflective anymore, replace
			* In case you opened that top lid:
			** Verify all shutters are in the correct position

	== Cryo pump regeneration ==		== Cryo pump regeneration ==

	# Close cryo VAT valve ( Adaptive pressure controller ) .		# Close cryo VAT valve ( Adaptive pressure controller ) .
	# Open the loadloack valve.		# Open the loadloack valve.

Harry: /* Maintenance */

2026-09-14T09:00:44Z

Maintenance

@@ Line 41: / Line 41: @@
 # Open cryo gate valve at own discretion. Turbo helps pumping down to ~1e-6 Torr. At lower pressures loadlock gate valve should be closed and only cryo should be open to the main chamber.
 # Write a message to the users!
 == Cryo pump regeneration ==

Harry: /* Maintenance */

2026-09-14T09:00:21Z

Maintenance

@@ Line 41: / Line 41: @@
 # Open cryo gate valve at own discretion. Turbo helps pumping down to ~1e-6 Torr. At lower pressures loadlock gate valve should be closed and only cryo should be open to the main chamber.
 # Write a message to the users!
 == Cryo pump regeneration ==

Harry: /* Service/repair/purchasing */

2026-06-18T14:51:54Z

Service/repair/purchasing

← Older revision		Revision as of 14:51, 18 June 2026
Line 131:		Line 131:
	[[Image: Milling_STDPROC.png\|thumb\|center\|600px\|Approximate standard values on power supply when running the milling]]<BR>		[[Image: Milling_STDPROC.png\|thumb\|center\|600px\|Approximate standard values on power supply when running the milling]]<BR>

	==Service/repair/purchasing==		=Service/repair/purchasing=
	More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].		More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].

Harry: /* Older ion milling notes */

2026-06-18T14:51:43Z

Older ion milling notes

← Older revision		Revision as of 14:51, 18 June 2026
Line 126:		Line 126:
	:: user: apex		:: user: apex

	== Older ion milling notes ==		= Old notes =
			== Older ion milling notes==
	When operating normally, the chamber should light a clear whiteish hue, and the kaufman power source should read numbers similar to these:		When operating normally, the chamber should light a clear whiteish hue, and the kaufman power source should read numbers similar to these:
	[[Image: Milling_STDPROC.png\|thumb\|center\|600px\|Approximate standard values on power supply when running the milling]]<BR>		[[Image: Milling_STDPROC.png\|thumb\|center\|600px\|Approximate standard values on power supply when running the milling]]<BR>

Harry: /* Service/repair/purchasing */

2026-06-18T14:51:11Z

Service/repair/purchasing

← Older revision		Revision as of 14:51, 18 June 2026
Line 125:		Line 125:
	: Fill in with parameters the [[AJA service#Phase II J software configurations \|Phase II J software configurations]].		: Fill in with parameters the [[AJA service#Phase II J software configurations \|Phase II J software configurations]].
	:: user: apex		:: user: apex

			== Older ion milling notes ==
			When operating normally, the chamber should light a clear whiteish hue, and the kaufman power source should read numbers similar to these:
			[[Image: Milling_STDPROC.png\|thumb\|center\|600px\|Approximate standard values on power supply when running the milling]]<BR>

	==Service/repair/purchasing==		==Service/repair/purchasing==
	More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].		More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].

Harry: /* Troubleshooting */

2026-06-18T14:41:47Z

Troubleshooting

@@ Line 76: / Line 76: @@
 =Troubleshooting=
-* If you are unable to ignite the plasma (either DC, RF or ion plasma) start by checking for shorts between pins on the powersupply input on the sputtering arm / ion source.
+; Unable to ignite the plasma (either DC, RF or ion plasma)?
 ==Service/repair/purchasing==
 More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].

Harry: /* Troubleshooting */

2026-06-18T14:36:00Z

Troubleshooting

← Older revision		Revision as of 14:36, 18 June 2026
Line 77:		Line 77:
	=Troubleshooting=		=Troubleshooting=
	* If you are unable to ignite the plasma (either DC, RF or ion plasma) start by checking for shorts between pins on the powersupply input on the sputtering arm / ion source.		* If you are unable to ignite the plasma (either DC, RF or ion plasma) start by checking for shorts between pins on the powersupply input on the sputtering arm / ion source.



			==Service/repair/purchasing==
			More notes and service/repair/purchasing contacts on the [https://wiki.nbi.ku.dk/qdevwiki/AJA_Systems internal QDev wiki].