Changes history

This LOG page was started on January 1, 2001 to keep the server users updated with the latest changes.


2017/10/02

2017/09/19

2017/09/13

2017/09/08

2017/08/21

2017/08/09

2017/07/22

2017/03/30

2017/03/21

2017/03/14

2017/03/10

2017/01/11

2017/01/04

2016/12/16

2016/10/10

2016/05/19

2016/03/18

2015/10/15

2015/10/12

2015/10/04

2015/04/29

2015/03/28

2014/07/16

2014/05/22

2014/03/20

2014/02/25

2014/01/08

2013/11/23

2013/09/30

2013/09/27

2013/06/26

2013/05/20

2013/05/16

2012/12/18

2012/12/16

2012/04/23

2012/04/12

2011/09/21

2011/05/23

2011/04/14

2011/04/09

2011/04/07

2011/03/30

2011/03/28

2011/03/22

2011/02/16

2010/10/04

2010/07/13

2010/05/05

2010/04/27

2009/12/10

2009/11/12

2009/02/06

2008/05/28

2008/03/18

2007/07/10

2006/11/27

2006/11/16

2006/11/10

2006/09/18

2006/07/01

2006/06/06

2006/05/01

2006/01/06

2006/01/02

2005/07/27

2005/04/24

2005/04/13

2004/12/13

2004/11/01

2004/11/17

2004/11/01

2004/04/29

2004/03/05

2004/01/26

2004/01/12

2003/12/01

2003/09/08

2003/08/14

2003/08/12

2003/07/29

2003/07/25

2003/07/07

2003/06/19

2003/04/08

2003/03/17

2003/02/06

2002/12/10

2002/11/11

2002/09/25

2002/09/22

2002/09/09

2001/10/15

2001/06/02

2001/05/15

2001/04/11
  1. Four simplified interfaces for defining coplanar diffraction geometries were added to the GID_sl program. With the new interfaces the specification of crystal surface is no longer required and the geometry is defined by either the incidence angle of k0, or the exit angle of kh, or the angle of Bragg planes to the surface, or the asymmetry parameter beta=g0/gh.
  2. Two new templates were added to the GID_sl page that provide the access to the simplified interfaces.
  3. More help on building the diffraction geometry and choosing the scan axes was added to the GID_sl page and respective templates.

2001/01/17

2001/01/05
During the winter holidays season there have been a number of major changes on the server. Although not all of them are directly visible to users, they are aimed at improving the server functionality and expandability.
  1. This LOG page was added.
  2. The Web server ported to Apache, so that now it can run on UNIX platforms too.
  3. All of the programs handling users requests have been updated to the CGI-1.1 from WinCGI used before with the previous Web server (Tahiti-Beta). The CGI-1.1 is a more commonly used protocol than WinCGI and using it can simplify moving the server from the Windows platform to a more productive UNIX workstation (such a possibility is currently under consideration).
  4. All of the x-ray data request forms have been made dynamic: now they are generated on the fly by a CGI script which includes into them the most recent data from the X0h database.
  5. Links have been added to all of the x-ray data request forms to call the help screens displaying information about available materials in the X0h database.
  6. The GID_sl program has been updated to handle the back diffraction case (the case of Bragg angles close to 90o).
  7. The X0h_form now additionally displays the Laue-case extinction length and the FWHM of double-crystal rocking curves.
  8. Two popup help screens have been added to the X0h_form. These screens show the equations used to calculate the parameters presented by the X0h_form.