1.5 Wide Band Spectrometer (WBS)


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1.5 Wide Band Spectrometer (WBS)

 

Instruments:
           Soft X-ray Spectrometer (SXS)
           Hard X-ray Spectrometer (HXS)
           Gamma-ray Spectrometer (GRS)
           Radiation Belt Monitor (RBM)

           SXS: Gas Proportional Counter (3-30 keV (nominal), 128 channels)
           HXS: NaI scintillation counter (20-657 keV, 32 channels)
           GRS: BGO scintillation counter (0.3-100 MeV, 144 channels)
           RBM-SC: RBM NaI Scintillation Detector (5-300 keV)
           RBM-SD: RBM Si Detector (>20 keV)
Angular resolution:     Full disk
Best time resolution:   0.125 sec

Most of the sub-instruments have pulse height (PH) data and pulse count (PC) data. PH is essentially a spectrum with counts as a function of energy, and PC is the sum of all counts for a given energy range.

The structure for the WBS data has numerous tags. Some of the data tags and types of data available are listed below.

SXS has two detectors with a 2-channel PC and 128-channel PH for each detector. The energies listed below are nominal values.      

          sxs_pc11 - SXS-1 Detector, chan 1 (3-15 keV) 
          sxs_pc12 - SXS-1 Detector, chan 2 (15-40 keV)
          sxs_pc21 - SXS-2 Detector, chan 1 (3-15 keV) 
          sxs_pc22 - SXS-2 Detector, chan 2 (15-40 keV)

          sxs_ph1  - SXS-1 Detector, 128-channel PH (3-30 keV)
          sxs_ph2  - SXS-2 Detector, 128-channel PH (3-30 keV*)

HXS has a 2-channel PC and a 32-channel PH.      

          hxs_pc1  - HXS Detector, chan 1 
                         (20-60 keV for 1-Oct-91 to 9-Jun-92)
                         (25-75 keV for 9-Jun-92 to present)
          hxs_pc2  - HXS Detector, chan 2
                         (65 - 657 keV for 1-Oct-91 to 9-Jun-92)
                         (75 - 830 keV for 9-Jun-92 to present)

          hxs_ph   - HXS Detector, 32-channel PH 
                         (20 - 657 keV for 1-Oct-91 to 9-Jun-92)
                         (25 - 830 keV for 9-Jun-92 to present)

GRS has two detectors with a 6-channel PC and a 128-chan PH (16-channel for the high words) for each detector.      

          grs_pc11  -  GRS-1 Detector, chan 1 (0.27 - 1.04 MeV)
          grs_pc12  -  GRS-1 Detector, chan 2 (1.04 - 5.47 MeV)
          grs_pc13  -  GRS-1 Detector, chan 3 (5.47 - 9.3   MeV)
          grs_pc14  -  GRS-1 Detector, chan 4 (9.3  - 13.1  MeV)
          grs_pc15  -  GRS-1 Detector, chan 5 (8 - 30 MeV)
          grs_pc16  -  GRS-1 Detector, chan 6 (30 - 100 MeV)

          grs_phl1  -  GRS-1 Detector, 128-chan (0.3 - 13.6 MeV)
          grs_phh1  -  GRS-1 Detector, 16-chan (8 - 100 MeV)

          grs_pc21  -  GRS-2 Detector, chan 1 (0.3 - 1.24 MeV)
          grs_pc22  -  GRS-2 Detector, chan 2 (1.24 - 5.66 MeV)
          grs_pc23  -  GRS-2 Detector, chan 3 (5.66 - 9.37   MeV)
          grs_pc24  -  GRS-2 Detector, chan 4 (9.37  - 13.6  MeV)
          grs_pc25  -  GRS-2 Detector, chan 5 (8 - 30 MeV)
          grs_pc26  -  GRS-2 Detector, chan 6 (30 - 100 MeV)

          grs_phl2  -  GRS-2 Detector, 128-chan (0.3 - 13.6 MeV)
          grs_phh2  -  GRS-2 Detector, 16-chan (8 - 100 MeV)

RBM has two detectors. RBM-SC has 2-channel PC and 32-channel PH, and RBM-SD has 1-channel PC.

          rbm_sc_pc1 - NaI scintillation detector (5-60 keV)
          rbm_sc_pc2 - NaI scintillation detector (60-300 keV)
          rbm_sd_pc  - Si detector (>20 keV)
          rbm_sc_ph  - RBM-SC Detector, 32-chan (5-300 keV)


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