INSTRUMENTATION FOR SPACE RADIATION MEASUREMENTS. PART II

Journal Article · Tue Jan 01 04:00:00 EST 1963 · IEEE (Inst. Elec. Electron. Engrs.) Trans. Nucl. Sci.

DOI:https://doi.org/10.1109/TNS.1963.4323259· OSTI ID:4744800

Rowland, J H; Bakke, J C; Imhof, W L; Smith, R V

An instrument designed to measure fluxes and energy distributions of protons in the range 10 to 100 Mev is discussed, together with related electronics. The instrument consists of a collimation housing containing two cesium iodide crystals and a plastic scintillator anti-coincidence ring. The electronics requires coincidence between the two CsI crystals and anti- coincidence with the plastic ring. The light from the large CsI crystal and the plastic anti-coincidence ring around it is sensed with a single photomultiplier tube and separated electronically by a phoswich circuit potted in the container with the tube. The coincidence, anti-coincidence output from the larger of the two CsI crystals is pulse-height analyzed by a 16 channel analyzer with binary coded output. Single count rates from each crystal are also telemetered by logarithmic count rate meters. The entrance port of the instrument contains a pair of magnets situated to minimize the count rate in the front CsI crystal from an electron flux. An instrument designed to measure electron fluxes and energy distributions in the energy range 50 to 1000 kev is also discussed. This instrument consists of a phototube and plastic scintillator housed in a collimated shield. The output is pulse-height analyzed by a sixteen-channel analyzer similar to the one used with the proton instrument. (auth)

• Research Organization: Lockheed Missiles and Space Co., Palo Alto, Calif.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-016893
• OSTI ID: 4744800
• Journal Information: IEEE (Inst. Elec. Electron. Engrs.) Trans. Nucl. Sci., Journal Name: IEEE (Inst. Elec. Electron. Engrs.) Trans. Nucl. Sci. Vol. Vol: NS- 10
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CESIUM IODIDES
CIRCUITS
COINCIDENCE METHODS
CONFIGURATION
CRYSTALS
DISTRIBUTION
ELECTRONICS
ELECTRONS
ENERGY
ENERGY RANGE
INSTRUMENTS
LIGHT
MAGNETS
MEASURED VALUES
PHOTOMULTIPLIERS
PHYSICS
PLANNING
POLYMERS
PROTONS
PULSE ANALYZERS
RADIATIONS
RATE METERS
SCINTILLATION COUNTERS
SHIELDING
SPACE