Critical ATLAS experiment change request
A critical ATLAS experiment change is one that requires approval by the ATLAS safety committees.

Critical changes include:
- Increment in maximum beam energy
- Increment in maximum beam intensity
- Send beam to a different end station
- Using a different beam species (nuclide)
- Beam time (schedule) modification

Critical changes do not include:
- Tuning
- Reduction of beam energy
- Reduction of beam intensity
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Email *
ATLAS experiment number *
For example: 1553. See schedule website:
Name of requestor *
Select beam changes *
Describe desired change(s) *
For example: max energy from 100 to 350 MeV
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