The Wide Band Spectrometer (WBS) consists of three subinstruments that together span the energy range from 2 keV to 100 MeV. They are (1) the soft X-ray spectrometer (SXS), a gas proportional counter filled with Xe and CO2 that covers the 2 to 30 keV band, (2) the hard X-ray spectrometer (HXS), a NaI scintillator that covers the energy range 20 - 600 keV, and (3) the gamma-ray spectrometer (GRS), a pair of identical BGO scintillators (Bi4 Ge3 O12), that cover the 0.2 - 100 MeV band. SXS has a FOV 10 deg square, has a sensitive area of approximately 12 cm**2, divides its energy range into 128 channels, and records 128-channel spectra every 2 s, 2-channel spectra every 0.25 s. The energy resolution at 5.9 keV is approximately 20% (FWHM). The HXS records pulse height data in 32 quadratically spaced channels over the 20 - 400 keV range every 1 s, and 2-channel pulse count data for the bands 20 - 50 keV and 50 - 600 keV every 0.125 s. The GRS has a resolution approximately twice that of the HXS, and records a 128-channel energy-loss spectrum, which is processed via spectral deconvolution to yield the incident gamma- ray spectrum. 128-channel spectra are recorded every 4 s. An assortment of other time resolutions apply for various energy channels. GRS also has detection sensitivity to solar flare neutrons.
Version:2.0.0
The Wide Band Spectrometer (WBS) consists of three subinstruments that together span the energy range from 2 keV to 100 MeV. They are (1) the soft X-ray spectrometer (SXS), a gas proportional counter filled with Xe and CO2 that covers the 2 to 30 keV band, (2) the hard X-ray spectrometer (HXS), a NaI scintillator that covers the energy range 20 - 600 keV, and (3) the gamma-ray spectrometer (GRS), a pair of identical BGO scintillators (Bi4 Ge3 O12), that cover the 0.2 - 100 MeV band. SXS has a FOV 10 deg square, has a sensitive area of approximately 12 cm**2, divides its energy range into 128 channels, and records 128-channel spectra every 2 s, 2-channel spectra every 0.25 s. The energy resolution at 5.9 keV is approximately 20% (FWHM). The HXS records pulse height data in 32 quadratically spaced channels over the 20 - 400 keV range every 1 s, and 2-channel pulse count data for the bands 20 - 50 keV and 50 - 600 keV every 0.125 s. The GRS has a resolution approximately twice that of the HXS, and records a 128-channel energy-loss spectrum, which is processed via spectral deconvolution to yield the incident gamma- ray spectrum. 128-channel spectra are recorded every 4 s. An assortment of other time resolutions apply for various energy channels. GRS also has detection sensitivity to solar flare neutrons.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Jun.Nishimura |
Information about the Wide Band Spectrometer experiment on the Yohkoh mission.