Current Users Help

From X6AWiki

Wireless Access

In order to access the lab-wide wifi (corus) you will need to register your device once.
Required info during this process are indicated here :
Facility : National Synchrotron Light Source
Building : 725
Jack : 725-01-122
Room : 1-166
Finally, use auto proxy configuration with url http://wpad.bnl.gov/wpad.dat

Users' Data Folder

For this run your data will be located in :

 /data_asn1/User/EK6781/2013-06-06 

• in this folder are 5 sub-folders

1. Collect (set of data, consecutive frames)
2. Screen (snapshot, to test crystals, basically one pattern at a time)
3. Scan (when performing a fluorescence scan around a specific edge)
4. Process (where you can process all data from the computer val)
5. Log (for dcs software, and is useless for you)
6. Images (crystal pictures)

• You can access this directory through any of three computers at beam line.

Note: When you do screening and data collection, please make sure you are under your data folder

• If you can't understand what's on the Terminal running DCS : >>

click on the terminal task bar and then on reset and clear"

Start Data Processing Software

 dcs-start 2013-06-06

This can be done in a terminal from any directory.

 Select the option 2 and type enter You are the first user today so no need to choose

Then wait for about 20 seconds (required for the client to connect to all servers, at this point you should see current values in all windows)

Shut Down the Data Processing Software

In the Hutch tab click on exit and in the terminal where DCS was started type

 stop-server

If all terminal and the DCS gui are closed: make sure that the data collection is finished on VAL. If the data collection is finished open a terminal on CYS, at the prompt type:

>stop-server.

All related functions will be closed and you can now start a new DCS session as described above.

Beam Position

Beam Position is approx 135.7 135.3

Contact your local contact

to call outside from the beamline phone dial first *2928609

To call the offices from outside the lab dial 631 344 and the 4 digit extension.

• Jean Jakoncic
  

Office: #3930
Cell: 631 681-1393

• Edwin Lazo
  

Office: #7247
Cell: 631 241-6067

• Vivian Stojanoff
  

Office: #8375
Home: 631 744-0611
Cell: 631 680-0186

• Kun Qian
  

Office: #8089
Home: 631 403-0185

Make Sure

For centering the sample it is preferable to use zoom 3. Any other zoom can be used to visualize the sample. Zoom 6 is the highest magnification and allows to see a micro-crystals.

During screening leave "Auto Beam Sense" checked off.

Mount a frozen sample in a vial

In the hutch tab close the shutter, move the detector shield down and click on LOAD. First kappa and omega will be oriented such a way that it will allow you to easily mount the sample, on top of that, the cryo-stream will be retracted.

Once the sample is mounted you can click on Load0 (kappa moves to 0 and the cryo stream is extended.

Adxv Image Display Problem

if diffraction doesn't show up in the collect tab at the startup (grey screen instead of a white screen) The solution is to restart DCS. go to your current folder if not already there and type restart, DCS will quit and start and click on Collect tab, if the window is white you are good to go, otherwise try again to restart DCS, and hit Collect tab etc ....

Detector Shield Issue

From time to time, the detector shield refuses to go up. If this happens, first try to move the DET shield Down then UP a couple of times, if this does not help then enter the hutch end gently lift it with one finger. It will automatically move up. (The pressure is adjusted so the shield moves smoothly. If a foreign object such as dust gets in the slides, the shield might not move).

MAD data set and wedges

When setting up a multi-wavelength (MAD) experiment, the wedge size will be automatically adjusted to cover the whole oscillation range, so that all data will be collected at energy E1 then E2 and E3 for a 3 wavelength experiment. If extra wavelength are to be considered these have to be set manually. The user can overwrite the default wedge size (number of frames * oscillation per frame) to be whatever needed, 10, 20 or 30 degrees. If the wedge size is set to be 20 degrees, and the oscillation range per image is 1 degree, then 20 degrees will be collected at E1, then at E2 and E3, followed by the 20 following degrees at E1 E2 and E3 etc ... until the whole range is collected. Inverse beam can also be used.

(OLD ...When setting up a multi-wavelength experiment, make sure to adjust the wedge size. The default is 1 deg !!!!!!!! The energy will be changed every degrees !!! Best is to use the total oscillation range as wedge. For example, if collecting 200 images 0.5 degree each, the wedge should be 100 degrees)

Useful Links

1. Hutch Interlock
2. X6A Experiment Camera
3. Prepare Automouter crystal Spreadsheet
4. Load spreadsheet and Add Runs
5. Run Automounter Experiment
6. User Data Back Up
7. Vortex Detector Restart Protocol
8. Keithley Protocols
9. Chiller Start Up Protocol