Groups Files for GEM data 

The following groups files are available for use when running NORM on GEM data.

These groups files are suitable for use with the gudrun data analysis software, as well as with the ATLAS software.

(a groups file can now be downloaded by clicking on its name)

Groups files Suitable for these run numbers Includes these detectors
norm_par:banks_994.grp
norm_par:sides_994.grp
norm_par:mods_994.grp
click here for full list of contents
of each detector group		 74 - 1163 Banks 2 and 5.
Part of Bank 4.
norm_par:banks_995.grp
norm_par:sides_995.grp
norm_par:mods_995.grp
click here for full list of contents
of each detector group		 1164 - 1463 Banks 2 and 5.
Parts of Banks 4, 6 and 7.
norm_par:banks_001m.grp
norm_par:sides_001m.grp
norm_par:mods_001m.grp
click here for full list of contents
of each detector group		 3366 - 8504 Banks 2, 5, 6 and 7.
Part of Bank 4.
norm_par:banks_013m.grp
norm_par:sides_013m.grp
norm_par:mods_013m.grp
click here for full list of contents
of each detector group		 8509 - 8753 Banks 1, 2, 5, 6 and 7.
Part of Bank 4.
norm_par:banks_013xm.grp
norm_par:sides_013xm.grp
norm_par:mods_013xm.grp
click here for full list of contents
of each detector group		 8837 - 9382 Banks 1, 2, 5, 6 and 7.
Part of Bank 4.
norm_par:banks_014m.grp
norm_par:sides_014m.grp
norm_par:mods_014m.grp
click here for full list of contents
of each detector group		 8754 - 8836
9383 - 10262		 Banks 1, 2, 5, 6 and 7.
Part of Bank 4.
norm_par:b022.grp 10263 - 10569 Banks 1, 2, 4, 5, 6 and 7.
Part of Bank 3.
norm_par:banks_023m.grp
norm_par:sides_023m.grp
norm_par:mods_023m.grp
click here for full list of contents
of each detector group		 10586 - 11407 Banks 1, 2, 4, 5, 6 and 7.
Part of Bank 3.
norm_par:banks_024m.grp
norm_par:sides_024m.grp
norm_par:mods_024m.grp
click here for full list of contents
of each detector group		 11408 - 15584 Banks 1, 2, 3, 4, 5, 6 and 7.
norm_par:banks_033am.grp
norm_par:sides_033am.grp
norm_par:mods_033am.grp
click here for full list of contents
of each detector group		 15585 - 15902 Banks 1, 2, 3, 4, 5, 6 and 7.
norm_par:banks_033bm.grp
norm_par:sides_033bm.grp
norm_par:mods_033bm.grp
click here for full list of contents
of each detector group		 15903 - 16504 Banks 0, 1, 2, 3, 4, 5, 
6 and 7.
norm_par:banks_034m.grp
norm_par:sides_034m.grp
norm_par:mods_034m.grp
click here for full list of contents
of each detector group		 16505 - 23827 Banks 0, 1, 2, 3, 4, 5, 
6 and 7.
norm_par:banks_051m.grp
norm_par:sides_051m.grp
norm_par:mods_051m.grp
click here for full list of contents
of each detector group		 23828 onwards Banks 0, 1, 2, 3, 4, 5, 
6 and 7.

A groups file named BANKS*.GRP produces one group per bank.
A groups file named SIDES*.GRP groups together all detectors in a bank and on the same side of the instrument.
A groups file named MODS*.GRP produces one group per module.

If the name of a groups file ends with the letter 'm' then it has been masked to exclude detector elements which have an unreliable calibration or are dead. This version of the groups file should be used, rather than the version without the 'm'.

If electronics spikes are present in the data then they should be dealt with before running NORM - see here.

Further general information about groups files is available here.

Further information about the GEM detector banks is available on the detector specification page and the GEM news page.

Last updated on 01 Jul 2005 by Alex Hannon (a.c.hannon@rl.ac.uk)