Revision history
| Version
|
Author
|
Description
|
Date
|
| 1.0
|
D. Hutcheon
|
Initial Document
|
27 September 2002
|
| 1.1
|
D. Hutcheon
|
Hidden valves,shack
|
4 April 2007
|
| 1.2
|
D. Hutcheon
|
Leak checking
|
27 April 2007
|
| 1.3
|
D. Hutcheon
|
Decadal update
|
22 January 2019
|
| 1.4
|
A. Lennarz
|
Transferred to wiki
|
June 25th, 2025
|
Safety with hydrogen as the target gas
Normal operation
Unattended gas target, trap containing absorbed hydrogen
Protection of equipment
General description of the gas target system
Gas supply shack
Windowless gas target
Operating the target
Pre-run checks
Pumping out the target
Filling the cleaning trap with hydrogen
Filling the cleaning trap with helium
Circulating gas through the target, trap in use
Circulating gas through the target, trap not in use
Checks of an operating target
Temporary pump-out of the target, trap in use
Emptying target and trap at end of running
Venting the target to 1 atmosphere
Hidden valves
Leak checking
Emergency procedures, response to pump trips
Power outage
Loss of compressed air to valves
Pump trips