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--- playground:shutdown [2009/03/04 15:46] – external edit 127.0.0.1
+++ playground:shutdown [2026/06/25 16:12] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-==== Machine Shutdown ====
+==== Accelerator Shutdown ====
-** Machine Shutdown **
+.	Switch OVERVOLTAGE PROTECTION to DISABLE.
-. Log Machine settings, log radiation monitor tape if necessary.
+.	Switch the control mode to GVM.
-. Switch stabilizer to "AUTO"
-. Put cup in -- when putting in L.E.  cup at high terminal voltage be prepared to run belt charge down as terminal voltage will increase when the beam loading is removed.
+.	Slowly turn the CONTROL GAIN to zero while watching the grid voltage.  If the grid voltage rises above -5 volts, reduce the CHARGING VOLTAGE to keep the grid voltage less than -5 volts, then continue reducing the CONTROL GAIN to zero.
-. Switch stabilizer to "STANDBY".
-. Turn "GRIDDED VOLTAGE TUBE LENS"  down and then push the " button.
+.	Turn the CHARGING VOLTAGE dial down to 0.10
-. Run belt charge down.
-. Turn belt charge "OFF".
+.	Switch CHAIN MOTORS to OFF.
-. Turn drive motor "OFF".
-. Start Source shut down (all control room operations).
+.	Switch POWER SUPPLIES to OFF.
-. Set steerers to zero and the to "OFF".
-. Run magnets and quadrupole lenses down ( coarse to zero, fine to 500),  the punch the "power" button.
+.	Turn the TERMINAL VOLTAGE dial to zero.
-. Turn the beam profile monitor  (BPM) to "STANDBY"
-. Turn buncher and chopper power to "OFF".
-. Run low energy extension (L.E. EXT.) einzel lens down.
-. Switch stabilizer to "OFF".
-. Turn key switch "OFF".
-. Complete source shut down in vault.