GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Chapter 3 - DLS System Functional Description Page 101
3.11.5 Rebooting PET Subsystems
The individual PET Advance subsystems may be rebooted by typing the corresponding acronym
into the "terminate -reboot" command line. The command line accepts multiple subsystem
acronyms, separated by a space. The subsystems choosen for rebooting will determine the actions
to take before scanning. (See Step 7).
Note: For best results, reboot individual subsystems only under the direction of the service representative.
Otherwise, a background process may be inadvertently interrupted and additional errors generated.
The PET Advance command line recognizes the following subsystem acronyms:
• OWS: Operator Workstation
• AWS: Analysis Workstation
• Table: Patient Table
• Gantry: PET Advance Gantry
• EPS: Event Processing System
• EDS: Event Detection System
• SRS: Scan and Reconstruction System
1.) Logon to the system as root.
• If logged on as the Operator, log off and log back on as root.
• Type/enter the root password the service representative provided.
2.) Right-click to display the menu.
3.) Select Tools to display its submenu.
4.) Select Terminal to open a terminal window, and move the cursor over the window to activate
it.
5.) When you type/enter the following command, type the subsystem acronym in place of the
XXX. To reboot a single subsystem:
• Type/enter: terminate -reboot XXX
OR
• To reboot multiple subsystems, type the corresponding acronyms, separated by a space:
terminate -reboot XXX XXX XXX
6.) The system runs the corresponding diagnostic tests and brings the designated subsystem(s)
to a known starting point.
7.) Choice of subsystem determines what to do next:
• If the AWS or OWS was not rebooted: Type/enter exit to leave the PET directory and
proceed to the Login panel.
• If the OWS or AWS was rebooted: After the Login panel displays on the screen, wait an
additional 3 minutes before logging on.
• If the SRS was rebooted: After the Login panel displays on the screen, wait an additional
3 minutes before attempting to Acquire, Reconstruct, Network, Archive, or delete raw data.
• If the EPS, EDS, table, or gantry was rebooted: After the Login panel displays on the
screen, wait an additional 6 minutes before attempting to acquire data. Otherwise, an error
message displays.
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