MCP stack + position sensitive spiral anode (SPAN)

Wavelength ranges (Å) - 2048 pixels each:

• 151.43 - 221.07 (GIS1)
• 256.45 - 341.03 (GIS2)
• 392.62 - 491.99 (GIS3)
• 658.99 - 784.71 (GIS4)
  • zeropoints are a slight function of the GSET

Resolution (line 1/e width) ~ 0.4 Å ~ 12 pixels

Count rates (Quiet Sun - 2"x2" slit)

• GIS1 FeIX line at 171 Å gives ~ 13 cnts/s (peak 1 cnt/s)