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Performance Characteristics (LE)

Low Energy Experiments Characteristics/Telescope
Energy Range 0.04-2 keV (6-300Å) CMA's*
Energy Resolution Five filters are available for broad-band spectroscopy
Field of view 2.2° diameter
Effective Area Thin Lexan
Filter
Al/P
Filter
Boron
Filter
.05 keV 0.2 0.3 -
.1 keV 4.0 1.5 -
.5 keV 0.8 1.0 -
1 keV 2.0 2.0 1.2
1.5 keV 2.0 2.0 1.8
2.0 keV 0.5 0.5 0.5
Spatial Resolution
(Line Spread function HEW)
On axis ~18 arc seconds
20 arc minutes off-axis ~40 arc seconds
Average steady residual background** 1.8 cnts/sec/cm2(LE1)
2.8 cnts/sec/cm2(LE2)
Grating A 500 lines/mm grating is available for high resolution spectroscopy on LE2
delta lambda = 1 Å ( lambda less equal 40 Å) and 5 Å for lambda = 300 Å

* Subject to UV contamination between 900 - 2600 Å
** Background rate subject to flaring


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Last modified: Thursday, 26-Jun-2003 13:48:32 EDT