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Tube Change for PANalytical X-Pert Pro How to change x-ray tube
for PANalytical X-Pert Pro in CSL 1011 @ Florida State
University
Dr Thayumanasamy Somasundaram, Senior Research Associate
Florida State University— 91 Chieftan Way, Tallahassee, FL
32306-4380
T: 1-850-644-6448 | E: [email protected]
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Tube Change for PANalytical X-Pert Pro | 2
Summary This procedure is for changing the fixed-anode copper
tube (either in line-or point-focus) to molybdenum (line- of
point-focus). This procedure is usually done when one wants to use
different monochromatic wavelength for the powder diffaction work.
Molybdenum (Mo)has a shorter Kalpha wavelenght of 0.722 Å (0.0722
nm; 17.15 keV) compared to Copper (Cu) which is 1.549 Å (0.0722 nm;
8.005 keV)
CONTENTS
Summary 2
Lab notes for Copper to Molybdenum tube change for PANalytical
X-Pert Pro Powder 3
Materials needed before starting the procedure 3
At the computer 3
At the back of the instrument 4
At the back panel of the instrument 5
At the tube 5
Putting it back together 7
Testing with Silicon 8
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Tube Change for PANalytical X-Pert Pro | 3
Lab notes for Copper to Molybdenum tube change for PANalytical
X-Pert Pro Powder
[Trainer: Katherine Macchiarola, PANalytical, Raw notes are at
end of this document [Raw notes1 and RawNotes2]
Materials needed before starting the procedure
SHALLOW PANE TO CATCH WATER (1-2 INCHES DEEP AND ABOUT ~9”X12”
OR EQUIVALENT) PAPER TOWELS T27 SCREW DRIVER T25 SCREW DRIVER T20
SCREW DRIVER SMALL AND MEDIUM SIZE ADJUSTABLE SPANNERS SPANNERS
PHILIPS SCREW DRIVER BIG
At the computer
• Username: User-1 {note the “U” in User-1 is capital letter} •
Password: xxxxxxxxx • Start Data Collector (by default it should be
running) program [Start >All
Programs>PANanalytical Data Collector > Data
Collector]
PANalytical Data Collector Program Graphical User Interface
(GUI)
• In Data Collector Go to Instrument Setting tab o Under X-ray
sub tab look for X-ray tube: Empyrean Cu LFF HR (9430 033 7310x)
and
click it o A new window “Instrument Settings” will open o In
that window go to X-ray sub tab
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Set 2-theta to 90.0° Set Omega off-set to 45.0° This will
automatically set Omega to 90° Hit apply Wait for the instrument to
get this position
XPert Pro in position for tube change Instrument Settings
Window
• X-Ray Tube Copper Empyrean System o Open Drop-down menu and
select “Molybdenum” o Hit Apply o This will bring the “Tube Change
Wizard
• Follow the wizard o We ignored the dialog box about Remove all
the PreFIX components [this is dependent
on what PreFIX modules are installed; we have X-Caliber] o The
wizard moved the 2theta to 110° and theta to 110.0° automatically o
The wizard brought the voltage back to zero and zero o We switched
off the HT key to off position
At the back of the instrument
• We walked to the back of the instrument o We turned the water
circulation off [at the back right hand side Haskris back panel;
Haskris
was running but we closed the supply and return valves by hand]
o We turned th HT breaker switch at the back of the instrument off
[back of the instrument;
mounted on the back wall; pull the handle down to off
position]
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At the back panel of the instrument
o Open the back-door which has a micro switch using T27 screw
driver (supplied with the instrument)
At the tube
Tube Housing and tube back side
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o At the back of the tube there are four screws. Loosen them
slightly using T25 screw driver (supplied with the instrument)
o Gently wiggle the collar (ring with knurled pattern) and
remove it o Remove the white string, High tension safety plug
(unplug it) o Remove the silver plug, Tube identification plug
(unplug it)
Tube Collar (knurled ring)
o Slowly pull the tube out by pulling the HT cable assembly from
the tube housing
o As you pull out notice that the POINT FOCUS will be facing you
and LINE FOCUS will be facing the floor. Make note of it.
o NO NEED to take out fully NOW o Put the plastic pane (for
catching water) on the instrument base panel (inside
the instrument and directly below the tube)
o Hold couple of paper towels in one hand and using an
adjustable spanner (or spanner provided with the instrument) start
undoing the water line using the other hand. When you start seeing
water escape [Note that even though we stopped the flow of water
earlier it will still spill] wipe it with paper towel and pull out
the tube and place it the plastic pane
o Now undo the water line completely and remove one of the hoses
(can be in IN or OUT)
o Wipe it clean
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o Now put the tube back again inside the housing and undo the
other water hose (if you took out IN first now it will be OUT).
Again if you see water wipe it and quickly bring the tube to the
plastic pane and pull the water hose out
o One can completely remove water hoses out of the Collar
(knurled ring; but remember to put it through the collar during the
installation back again)
o Place couple dry paper towels on the instrument base panel o
Now you will see four screws (2 are short and 2 are tall). I have
written ”T”
next to tall ones o Using the T20 screw driver undo the 2 short
ones o After a while you can undo the 2 tall ones o Take all four
screws are completely out o Now wiggle the HT cable out of the tube
assembly and keep it on a dry paper
towels
High tension cable
o If the off-white part (rubber tip) of the HT cable looks dry
put some P4 Silicone grease
Putting it back together
• Gently put the HT cable back inside noting that the HT cable
will go one way only (see the photo)
• The brass cut-out that is holding the HT cable and has four
holes for the 2-short and 2-tall screws are made in a special
way
• The brass cut-out will sit correctly in one way only while the
screw holes are aligned • Start with 2-tall screws and once they
are tight enough the HT cable will be getting
secured firmly • Now add the 2-short screws and start tightening
them all
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• Follow the scheme North South East West • The 2-tall ones will
stop tightening first • The 2-short ones will stop tightening later
• Make sure the water hoses are threaded through inside of the
collar (knurled ring) and
IN hose is paired with SUPPLY on the tube and OUT is paired with
OUT • Tighten the screws using adjustable spanner
Tube and housing and Line Focus
• Put the tube back inside the tube housing making sure that
POINT FOCUS is facing you and the LINE FOCUS is facing the sample
(down toward the base panel)
• Push on the collar (knurled ring) and click it • Now tighten
the four screws using T25 gently and hand-tighten. The loosen them
1/8
turn • Put the Silver plug back in • Put the black plug with
white string back in • Open the water SUPPLY and INLET and ensure
no water is leaking • Close the back door • Put the screw back on
the back door • Switch on HT breaker on the back wall • Follow the
wizard • Run a standard sample Silicon
Testing with Silicon
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Standard Silicon disc run
SummaryLab notes for Copper to Molybdenum tube change for
PANalytical X-Pert Pro PowderMaterials needed before starting the
procedureAt the computerAt the back of the instrumentAt the back
panel of the instrumentAt the tubePutting it back togetherTesting
with Silicon