SPASE.info

TWINS1, Lyman-alpha Detector, LAD

ResourceID
spase://SMWG/Instrument/TWINS1/LAD

Description

TWINS1, Lyman-alpha Detector, LAD, The TWINS Lyman-alpha detector consists of two independent sensors to measure Lyman-alpha radiation being emitted by neutral hydrogen atoms. The sensors are oriented at angles of ±40° with respect to the actuator spin axis. Each sensor has a full width, half maximum, FWHM, field of view of 4°, defined by collimation hole baffles, uses Lyman-a interference filters as narrow band transmissions filters, and applies a KBr or CsI photodiode for photon detection. The Lyman-alpha detector is located on the rotating actuator platform in order to provide a full 360° azimuthal angle coverage. It has a time resolution of 60 s.

View XML | View JSON

Details

Version:2.2.8

Instrument

ResourceID
spase://SMWG/Instrument/TWINS1/LAD
ResourceHeader
ResourceName
TWINS1, Lyman-alpha Detector, LAD
ReleaseDate
2017-08-24 12:34:56.789
Description

TWINS1, Lyman-alpha Detector, LAD, The TWINS Lyman-alpha detector consists of two independent sensors to measure Lyman-alpha radiation being emitted by neutral hydrogen atoms. The sensors are oriented at angles of ±40° with respect to the actuator spin axis. Each sensor has a full width, half maximum, FWHM, field of view of 4°, defined by collimation hole baffles, uses Lyman-a interference filters as narrow band transmissions filters, and applies a KBr or CsI photodiode for photon detection. The Lyman-alpha detector is located on the rotating actuator platform in order to provide a full 360° azimuthal angle coverage. It has a time resolution of 60 s.

Acknowledgement
D.J. McComas, Mission Principal Investigator, J. Goldstein, General Contact
Contacts
RolePerson
1.GeneralContactspase://SMWG/Person/Jerry.Goldstein
2.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Lyman-alpha Detector Web Site
URL
http://twins.swri.edu/
Description

Lyman-alpha Detector, LAD, Information and Details

InstrumentType
Imager
InvestigationName
Two Wide-angle Imaging Neutral-atom Spectrometer, TWINS
OperatingSpan
StartDate
2006-06-28 03:33:00
ObservatoryID
spase://SMWG/Observatory/TWINS1