Herschel: FmIltProc/SpectroSetup

=Spectroscopy Setup=

Dynamic range per capacitance

• Procedures : FmIltProc/DynamicRangeSpectro

• Pre-test setup:
  • Set the OGSE BB temperatures (SET_UP_OGSE_BB_TEMP_OBS, see the temperatures below)
  • Move filter wheel to "POS A" (SPEC_fltw_move)

• CUS scripts: SPEC_dyn_range_obs, SPEC_DiagHK_DynRange_block_stop, SPEC_DiagHK_DynRange_block_start

• Below are all combinations of the OGBE BB temperature, integration capacitor and reset interval values. Note, that the parameter of the SPEC_dynamic_range_fmilt123_OBS CUS script is the ramp length, and not the reset interval! (1/16s -> 16; 1/4s -> 64; 1/2s -> 128; 2s -> 512). The integration capacitor/reset interval block is performed for two grating positions: GR-1 = 760000 and GR-2 = 490000.

  • Setup #1: OBSE BB1: 16.3K, OGSE BB2: 15.7K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #2: OBSE BB1: 18.8K, OGSE BB2: 18.2K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #3: OBSE BB1: 25.4K, OGSE BB2: 24.6K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #4: OBSE BB1: 32.5K, OGSE BB2: 31.5K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #5: OBSE BB1: 40.7K, OGSE BB2: 39.3K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #6: OBSE BB1: 48.0K, OGSE BB2: 46.0K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #7: OBSE BB1: 61.4K, OGSE BB2: 58.6K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

  • Setup #8: OBSE BB1: 77.0K, OGSE BB2: 73.0K

    • GR-1	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

      GR-2	0.1pF	0.3pF	1pF	3pF
      1/16s
      1/4s
      1/2s
      2s

• Estimated duration of the tests for each indivitual OGSE BB setting: 2x4x4x128s + 2x15s for grating movement + 1080s OGSE BB stabilization = 1.45h

• Measurements / Preliminary analysis : FmIltAnal/DynamicRangeSpectro