Small-Molecule Crystallography at Johns Hopkins
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JHU X-ray news

10/01/2003 - The Xcalibur3 diffractometer is installed
11/03/2003 - Our new Leica stereo zoom microscope with polarized light has been installed.
01/05/2004 - Our web cam is now available. Click here for instructions.
03/02/2004 - Download a copy of the Sample Submission Form
03/25/2005 - New pdf SHELXP guide for JHU students
03/25/2005 - New guide to locating your data files

JHU X-ray Diffraction Facility, Equipment:

  1. Xcalibur3 X-ray diffractometer; 3kW sealed-tube generator, running Mo radiation.

  2. CrysAlis software to operate the diffractometer, manage data collection, index crystal faces, process data, generate axial photographs and synthesize precession-style images.

  3. Data collection computer (PC running Windows XP) to operate the Xcalibur3 and process data.

  4. Cryojet liquid nitrogen cold-stream set-up, with temperature control and autofill monitor; includes 70 liter dewar and (rented) 240L storage dewar.

  5. Remote control of cold stream, generator, and data collection.

  6. Leica MZ7.5 polarized-light microscope, with digital camera for mass viewing of samples and archival of sample images.

  7. Additional Windows XP computer for student use.

  8. Access to Cambridge Structural Database, WinGX, PLATON, and other crystallographic programs.

  9. Dell laptop running Windows XP for structure solution and refinement.

  10. Linux PC web-host and file server (for internal data).

  11. Myriad crystallographic accessories for sample handling including Paratone oil, magnetic crystal caps and cryo-loops for sample mounting. (Currently we mount samples on glass fibers staked in copper magnetic crystal caps).