The main source of documentation on GEANT is this manual. Users are invited to notify any correction or suggestion to the authors.
A detailed description of the history of modifications to the GEANT code
is contained in the $VERSION Patch in the GEANT file.
GEANT is part of the CERN Program Library, and problems or questions about GEANT should be directed to the Program Library Office (see next section).
GEANT problems can be submitted to an InterNet discussion group cern.lgeant.
A mailing list is maintained on CERN's central IBM machine (BITnet node CERNVM) via the LISTSERV mechanism. LISTSERV acts as a rudimentary conferencing system, which forwards the mail received to all subscribed users and to the InterNet group cern.lgeant. The list is accessible to all users who have an e-mail connection to CERNVM. To subscribe to the list from a BITnet node a user has to send the following message to LISTSERV at CERNVM using the local BITnet message facility:
SUBSCRIBE LGEANT
From a non-BITnet node, the user can send an ordinary mail message to the user LISTSERV at CERNVM containing that single line.
Together with the GEANT library comes a correction cradle (see section on maintenance policy) which contains the history of the modifications to the current version of the GEANT program. This file is accessible to all users in the PRO area and can be found in:
GCORR{\it xxx.CAR}
where xxx is the version number.
Documentation on the elements of the CERN Program Library used by the GEANT program is available from the CERN Program Library Office.