Fundamental Technologies Ulysses HISCALE Pages

4.8.1 Preflight Calibration with Electron Beams (continued)

Memo #2: Additional Data Presentation to Solar-Polar LAN-2B Electron Calibration Report

Document Source: J. W. Kohl (LAN-041-80)
Date: October 2, 1980

By request of L. Lanzerotti, the data contained in the report “Calibration of Solar-Polar LAN-2B Flight Unit at NASA/GSFC with Laboratory Electronics Using Low Energy Electrons,” August 1980, has been presented in a different format.

Attached are graphs indicating the electron detection efficiency for beam targets in the Y = 0 plane (coordinate systems are those described in the above mentioned report). The data is presented as efficiency as a function of target position along the Z axis for a constant beam entrance angle. Each curve is identified as to electron energy.

Note that the 20 keV electron efficiency has been modified for the low level discriminator cut-off efficiency, so that what is presented in the figures are the true efficiencies.

• Figure 4.66 Electron detection efficiency 30° CCW
• Figure 4.67 Electron detection efficiency 20° CCW
• Figure 4.68 Electron detection efficiency 10° CCW
• Figure 4.69 Electron detection efficiency 0°
• Figure 4.70 Electron detection efficiency 10° CW
• Figure 4.71 Electron detection efficiency 20° CW
• Figure 4.72 Electron detection efficiency 30° CW

Next: 4.8.2 Preflight Calibrations with Ion Beams

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