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Solid-State Proton Detector

NSSDCA ID: 1961-015B-06

Mission Name: Injun 1
Principal Investigator:Dr. Carl O. Bostrom


This experiment consisted of four silicon p-n junction detectors. Two detectors mounted perpendicular with respect to each other measured directional fluxes of protons in the energy ranges 1.4 to 17 MeV and 1.6 to 11 MeV, respectively. The remaining two detectors served as background detectors. The detectors were insensitive to naturally occurring electrons. Counts in each detector were accumulated for almost a full second and were telemetered every second. The detectors worked well until July 9, 1962, after which Starfish electrons contaminated the data. Loss of the intended magnetic alignment rendered the data useless for detailed pitch angle studies.

Alternate Names

  • Injun1/Solid-StateProtonDetector


  • Space Physics: Magnetospheric Studies

Additional Information

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NameRoleOriginal AffiliationE-mail
Dr. George F. PieperOther InvestigatorNASA Goddard Space Flight
Dr. Alfred J. ZmudaOther InvestigatorApplied Physics Laboratory
Dr. Carl O. BostromPrincipal InvestigatorApplied Physics Laboratory
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