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Standard Operating Procedure: 

Bruker D8 Discover X-Ray Diffractometer 

(You MUST be trained by an authorized BSCMC trainer to use this instrument) 

 

 

 

Hazards:

 This unit produces a high intensity X-ray beam. Take all precautions to avoid exposure to the x-rays.  

 

Warning:

 Beryllium! Do not touch the front window of either detector as they both contain Beryllium. Fumes 

of the dust from Beryllium and its compounds can be hazardous if inhaled! 
 

Typical Experiment Sequence:

 

1.

 

Sign in on the iLab electronic calendar 

2.

 

Visually check the diffractometer for instrument status. 

3.

 

Open the cooling water valves and turn the x-ray generator ON. 

4.

 

Launch the 

D8Tools

 software to check the system status and ramp the power up. 

5.

 

Launch the operating software: 

a.

 

GADDS

 for use with the HI-STAR area detector 

b.

 

Commander

 for use with the Scintillation detector. 

6.

 

Check the x-ray beam intensity 

7.

 

Load and align sample  

a.

 

Use the 

Laser-Video System

 with 

GADDS

 and the HI-STAR area detector 

b.

 

Use a Z-scan and half intensity method or the 

Laser-Video System

 with 

Commander

 and the Scintillation detector. 

8.

 

Set up scan and save data. 

9.

 

Remove sample, reduce power, turn the generator off and shut off the cooling water 

10.

 

Be sure that the iLab calendar accurately displays the number of hours the XRD was 

OCCUPIED by your experiment.

 

 

Содержание D8 Discover

Страница 1: ...nt status 3 Open the cooling water valves and turn the x ray generator ON 4 Launch the D8Tools software to check the system status and ramp the power up 5 Launch the operating software a GADDS for use with the HI STAR area detector b Commander for use with the Scintillation detector 6 Check the x ray beam intensity 7 Load and align sample a Use the Laser Video System with GADDS and the HI STAR are...

Страница 2: ...t Key Switch This key will lock unlock the system During normal operation the switch must be in position unlocked v Open Door button This button must be pressed to open the front door If the Open Door button is activated while the tube window is open the X ray shutter will close automatically and it will disrupt the experiment vi Ready light Status of High Voltage Generator Illuminated orange disp...

Страница 3: ...ower to 20kV and 5 mA c Open the D8 tools and check the system status Online Status Online Refresh d Check for any alarms An alarm or warning will prompt a red or orange box i If they appear click on the red or orange box to be directed to the cause e Ramp up the X ray power X Ray Generator Utilities Set kV mA i Set 30 kV 10 mA and wait 2 3 minutes ii Set 40 kV 15 mA and wait 2 3 minutes iii Set 4...

Страница 4: ...wn button NOTE Be sure to have the mouse on the STOP icon to be able to stop the drive if it looks as though it will crash this will require you to watch each drive as it is initiated d Once the drive has stopped moving push the adjust button e Repeat steps a and b for any of the drives that need to be initiated ii Do the drives appear to be in the indicated position Look at the values in D8 Tools...

Страница 5: ...s subsequent data collections to the above file path 5 Check the x ray beam intensity Make sure there is no sample or sample holder that will interfere with the path of the x rays a Make sure the following slits are in place i 1 5mm slit in the Goebel mirror exit slit furthest left ii 6 0mm slit with the TWO copper absorbers in the next slit iii 1 0mm aperture in the ACC2 exit slit iv 1 0mm Univer...

Страница 6: ...gn the sample The Laser Video System has to be used with the HI STAR area detector NOTE Things to be careful of when loading your sample Do not touch the face of the detector o It is made of Beryllium and is hazardous Do not bump the detector o Could cause a short and cost a lot of money to fix Be gentle with the laser video system ...

Страница 7: ... which is called universal center of the goniometer To align your sample surface at this universal center you need to use the Manual Controller to move the XYZ table ii Activate the Manual controller and turn the laser on 1 While active in the GADDS window Press Ctrl Shift M to activate the manual controller Press OK when the following screen appears 2 Push L on the keyboard to turn the laser on i...

Страница 8: ...ant to move 1 8 see above b To change the position of the drive use the arrows or c To change the speed of movement of the drive use the or buttons Warning Make sure that none of the drives will run into each other when they are moved since there are NO safety switches installed for this purpose The Emergency Stop buttons can be used if needed but it is preferred to use the ESC STOP button on the ...

Страница 9: ...going to hit other part ix Once your sample is in focus and the laser is in the center of the video window centered on the crosshairs zoom the camera in zoom 7 to fine tune your sample position x Once the laser spot is centered the sample is aligned and ready to take data return chi phi to 0 if applicable xi Turn the laser off 1 Type L in the GADDS program Warning You can use the controller to mov...

Страница 10: ...ormation accordingly Use the working directory C Frames year month Sample Name This automatically saves subsequent data collections to the above file path b Make sure that the X ray generator is at the operating power Collect Goniometer Generator Set to 40kV and 40 mA c Set up a single scan Collect Scan Singlerun ...

Страница 11: ...ormation o This is not necessary when creating a file name it is only viewed in GADDS o Misc information that will be attached to your data for record keeping purposes Filename generation Job name _ Run _ Frame o Used to auto generate a filename o Change as needed the grayed out File name is how it will appear in the project folder Max display counts This controls the intensity scale during the re...

Страница 12: ...in an earlier step g The last frame collected will be shown in GADDS when the measurement is finished i To navigate to different Frames with in a Run press CTRL or CTRL h Integrate the data create a one dimensional scan for evaluation in EVA i Go to the frame of interest then 1 Peak Integrate Chi enter 2 Select the range you are interested in 3 Save the file in the folder of interest for further a...

Страница 13: ...your sample out of the XRD the BSCMC is not responsible for lost and or damaged samples 9 Close the GADDS operating software and leave the unit in standby mode 20kV 5mA a Project Exit 10 Update the iLab Calendar if necessary ...

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