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. 2020 Jun 15;27(Pt 4):890–901. doi: 10.1107/S1600577520005147

Table 3. Parameters of the LCLS II two-stage acceleration and compression.

Parameter Value Unit
L1 phase Inline graphic −17.44 degree
L1 energy gain Inline graphic † 181 MeV
L1C phase Inline graphic −148.968 degreeC‡
L1C energy gain Inline graphic 49.9 MeV
BC1 R 56 −52.9 mm
BC1 beam energy Inline graphic 224.36 MeV
L2 phase Inline graphic −20.754 degree
L2 energy gain Inline graphic 1.4828 GeV
BC2 R 56 −41.1 mm
BC2 beam energy Inline graphic 1.6109 GeV
L3 phase Inline graphic 0 degree
L3 energy gain Inline graphic 2.3891 GeV
†

Energy gain at on-crest acceleration.

‡

Degree in the corresponding cavity RF frequency.