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GEM: Galil jaws: commission #2858

Closed Tom-Willemsen closed 6 years ago

Tom-Willemsen commented 6 years ago

The jaws on GEM have been replaced with galil jaws. The motion control group has not yet finished commissioning the jaws on their side.

Once motion control have finished commissioning we will need to copy the various motor settings, homing modes etc across to IBEX.

Follow the steps in https://github.com/ISISComputingGroup/ibex_developers_manual/wiki/Migrating-Galil-motors-from-SECI-to-IBEX

IainJohnson commented 6 years ago

Here is a link to a spreadsheet with useful information: http://www.facilities.rl.ac.uk/isis/electricalusersupport/Files/02%20-%20Beamline%20Equipment/TS1/GEM/Slits_Sets_JJ_X_Ray/Commissioning_Reports_Gem/GEM_Slits_Computing_Factsheet.xlsx

kjwoodsISIS commented 6 years ago

@IainJohnson - we now have access to the Sharepoint site.

IainJohnson commented 6 years ago

@kjwoodsISIS here is the very latest place masquerading as a network drive: http://www.facilities.rl.ac.uk/isis/Motion/TestDocuments/Forms/AllItems.aspx

kjwoodsISIS commented 6 years ago

http://www.facilities.rl.ac.uk/isis/Motion/TestDocuments/Forms/AllItems.aspx should now also be available to all members of the Experiement Controls team.

Tom-Willemsen commented 6 years ago

As part of the commissioning, please confirm distances along beamline of new jaws and adjust the scale factors in configurations/galil/jaws.cmd to match the new distances. May need to ask motion control (?) if the new jaws have been surveyed if we're not sure of the distances.

I've got the following scale factors (between sample position and moderator) for the old jaws (extracted from labview driver): Set 5 - 0.097 Set 4 - 0.2545 Set 3 - 0.396 Set 2 - 0.521 Set 1 - 0.627

Also ensure the mapping of motors -> jaws is correct.

DominicOram commented 6 years ago

Network is now all correctly set up for the Galils. We just need to:

Scientists have confirmed that those distances are currently fine and will pass on some more up to date distances when they have some.

Tom-Willemsen commented 6 years ago

Installed values for the centres of the slit boxes are

GEM1 6.322m GEM2 8.128m GEM3 10.329m GEM4 12.643m GEM5 15.389m (not final position) SAMPLE Position (under vacuum) 17.000m

DominicOram commented 6 years ago

To test (on NDXGEM):

Note that the OPI will not have the moderator/sample widths until #2995. If moving the jaws please leave them fully open

AdrianPotter commented 6 years ago

Note that I would say the IOC system tests should be fixed before this ticket is marked complete. I'd also like the IOC system tests to cover the East, South and North blades to verify their calculations are correct.

John-Holt-Tessella commented 6 years ago

Confirmed the Dom homed all jaws and that he checked the positions between SECI and IBEX.

John-Holt-Tessella commented 6 years ago

Calc: distance from sample to jaws and width(height) - width(height) at sample. Then take ration. All ratios agree to 2sf.

  Distance to Jaws Width horz Width Vertical   Distance from jaws to sample Width - width at sample Height - Height at sample ratio horz ratio vert
MODERATOR 0 90 84   17 80 44 4.705882 2.588235
GEM1 6.322 60.25 67.64   10.678 50.25 27.64 4.705937 2.5885
GEM2 8.128 51.75 62.96   8.872 41.75 22.96 4.705816 2.587917
GEM3 10.329 41.39 57.3   6.671 31.39 17.3 4.705441 2.593314
GEM4 12.643 30.5 51.24   4.357 20.5 11.24 4.705072 2.579757
GEM5 15.389 17.58 44.15   1.611 7.58 4.15 4.705152 2.57604
SAMPLE 17 10 40   0 0 0 #DIV/0! #DIV/0!
DominicOram commented 6 years ago

Note that the numbers noted in Iain's spreadsheet for axes 1-8 assume home is the second index from the limit. IBEX has a 1mm difference as it homes on the first index.