Device Disable

Systems(s) Affected:
Safety

Device to be Disabled
Cyclotron ignition key locked out

Implementation:	Number:
Date: 2025-01-10 Time: 10:01:00	2025-23
Implemented By: Eric Chapman
In Consultation With:

Status:
Active

Est. Duration:
16 weeks

Reason for Disable:
VIB-024 signal pinned at I0104 (df #2025-22). ISIS Vacuum PLC work ongoing, CSS unable to verify VIB-024 position.

Conditions for Removal:
Verification that ISIS beamstops 127, 165, Fast target, VIB-024 or their new counterparts are commissioned and reading properly by the safety system. Consult Kevin Ardron prior to cyclotron startup.

Number of Red Tags:
2

Location of Disable Tag(s):
1-DCR defeats board, 2-Cyclotron ignition key.

How was Disable Implemented?
Where is Disable Located?
Cyclotron ignition key locked out.

Verification Method:
Cyclotron ignition key is no longer in the console. WCP remains functional, inserted and is under OPS control.

Lock ID Number(s):

Fault Reports:

Work Permits:

Defeats:

Device Disable

Removal:	Number:
Date: Time:	2025-23
Removed By:

Status:
Active

Have the Following Conditions for Removal Been Met? No
Verification that ISIS beamstops 127, 165, Fast target, VIB-024 or their new counterparts are commissioned and reading properly by the safety system. Consult Kevin Ardron prior to cyclotron startup.
All associated Work Permits have been returned

Device Functionality Verification Method:

Number of Red Tags Removed:
0

Comments: