CCDB Tables Photon Beam

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Variations

No interesting variations at the moment.


Tables

PHOTON_BEAM/scaled_energy_range - 340 rows

xlow low and high values of the beam energies measured by this channel as a fraction of the beam energy
xhigh

all channels, microscope + fixed array

PHOTON_BEAM/endpoint_energy

PHOTON_BEAM_ENDPOINT_ENERGY Endpoint energy as determined with tagged and pair spectrometer


Tagger Microscope

PHOTON_BEAM/microscope/tdc_timing_offsets

1-120 timing offset, t0 (ps)

PHOTON_BEAM/microscope/adc_timing_offsets

1-120 timing offset, t0 (ps)

PHOTON_BEAM/microscope/adc_gain_factor

1-120 gain correction factors

PHOTON_BEAM/microscope/scaled_energy_range - 120 rows

xlow low and high values of the beam energies measured by this channel as a fraction of the beam energy
xhigh

PHOTON_BEAM/microscope/timewalk_correction - 120 rows

A parameters for per-channel timewalk correction
B
C
D
E


Tagger Fixed Array

PHOTON_BEAM/fixed_array/tdc_timing_offsets

1-220 timing offset, t0 (ps)

PHOTON_BEAM/fixed_array/adc_timing_offsets

1-220 timing offset, t0 (ps)

PHOTON_BEAM/fixed_array/adc_gain_factor

1-220 gain correction factors

PHOTON_BEAM/fixed_array/scaled_energy_range - 220 rows

xlow low and high values of the beam energies measured by this channel as a fraction of the beam energy
xhigh

PHOTON_BEAM/fixed_array/timewalk_correction - 220 rows

A parameters for per-channel timewalk correction
B
C
D
E


Pair Spectrometer

Coarse-grained PS:

PHOTON_BEAM/pair_spectrometer/tdc_timing_offsets

1-16 timing offset, t0 (ps)

PHOTON_BEAM/pair_spectrometer/adc_timing_offsets

1-16 timing offset, t0 (ps)

PHOTON_BEAM/pair_spectrometer/adc_gain_factor

1-16 gain correction factors

PHOTON_BEAM/pair_spectrometer/gate_threshold

PHOTON_BEAM_PS_GATE_THRESHOLD gating threshold for coincidence between fine-grained and coarse-grained PS

Fine-grained PS:

None

Total Absorption Counter

PHOTON_BEAM/TAC/timing_offsets

1-8 timing offset, t0 (ps)

PHOTON_BEAM/TAC/gain_factor

1-8 gain correction factors

PHOTON_BEAM/TAC/timewalk_correction - 8 rows

A parameters for per-channel timewalk correction
B
C
D
E