Shot Types And Closed Access - Omega Volume VII–System Description Operation Manual

S-AD-M-005
Chapter 1: System Overview
To OAA
Clean stairwell
to Laser Sources
Conference
Room
G6873J1
Figure 1.18
An illustration of the OMEGA EP Control Room, anteroom, and conference area. Workspace is also provided for the
System Scientists or Principle Investigators. A corridor leading north, directs guests to the Viewing Gallery. The optics
assembly area (OAA) is to the south.

1..2 Shot Types and Closed Access

Not all shots on OMEGA EP are target shots. Many are used for system preparation, checkout
and evaluation, or laser technology research and development. Shot types are used to define the closed
access areas during shot operations for safety reasons and to define the staffing requirements. The
specifics are defined in LFORM (referenced above). Like OMEGA, there are seven shot types used for
OMEGA EP. This strategy obviates the need to modify the communications protocol, OIP.
types also have an equivalent meaning (see Table 1.5).
The shot type establishes which of the executive processes must be involved in the shot, the
location at which propagation stops, and which bays must be closed to access. In addition, each of the
seven shot types may be simulated as a "trigger test" shot: the system state sequence is executed as it
would be for an actual shot and the HTS triggers are produced, but no PCU's are charged and the seed
pulse is not amplified beyond the driver regenerative amplifiers. The two variations are
• Null template trigger test: No PCU's are included in the Power Conditioning Template.
• Zero volts trigger test: One or more PCU's are included, but the charge voltages are set to
zero.
It is also possible to produce the HTS triggers without executing the system state sequence. This
is called a "timing test."
5
Definition: OMEGA Intercommunication Protocol, S-AA-M-020.
To Laser Bay
System Scientist Control
workstations Room
Corridor
January 2006—Page 33 of 35
To diagnostic
workshop
Anteroom and
operations
stand-down area
Corridor to
viewing gallery
5
The shot