CASSINI
Cassini MIMI Investigation at Fundamental Technologies
Historical MIMI Memos and Notes
Charge-Energy-Mass Spectrometer (CHEMS)
D. C. Hamilton, Univ. of Maryland, MIMI team meeting, October 1994
CHEMS Sensor Description
| Ion Species Mass range Mass/charge range |
H through Fe 1 to 60 amu 1 to 30 amu/e |
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| Energy Range | 3-220 keV/e (M/Q) 30-220 keV/e (Mass, M/Q |
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| Geometrical Factor | 0.05 cm2 sr | ||||||||||||||||
| Total F.O.V. | 159º x 8º | ||||||||||||||||
| Deflection Voltage System | |||||||||||||||||
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Spherical Segment Type
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| Heritage -Geotail/STICS (launched July 1992) -Wind/STICS (to be launched 1995) |
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Figures:
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Figure 1 |
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Figure 2 |
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Figure 3 |
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Figure 4 |
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Figure 5 |
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Figure 6 |
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Figure 7 |
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Figure 8 |
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Figure 9 |
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Figure 10 |
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Figure 11 |
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Figure 12 |
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Figure 13 |
CHEMS Parts Changes
- Parts change on CHEMS TAC and INCA TAC boards:
Analog devices AD96687TQ dual comparator changed to two AD96685TQ single comparators to reduce crosstalk. - Possible addition of optocoupler for cover-open sense.
Brief report on detector evaluation tests that were performed on 3/7/94 to 3/17/94 at NASA/GSFC.
Solid State Detectors Performance Valuation Tests Report II
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Updated 8/8/19, Cameron Crane
QUICK FACTS
Manufacturer: The Cassini spacecraft
was manufactured by NASA's Jet Propulsion Laboratory,
and the Huygens Probe was manufactured by Thales Alenia
Space.
Mission Duration: The Cassini-Huygens mission launched on October 15 1997, and ended on September 15 2017.
Destination: Cassini's destination was Saturn and its moons. The destination of the Huygens Probe's was Saturn's moon Titan.
Orbit: Cassini orbited Saturn for 13 years before diving between its rings and colliding with the planet on September 15th, 2017.
Mission Duration: The Cassini-Huygens mission launched on October 15 1997, and ended on September 15 2017.
Destination: Cassini's destination was Saturn and its moons. The destination of the Huygens Probe's was Saturn's moon Titan.
Orbit: Cassini orbited Saturn for 13 years before diving between its rings and colliding with the planet on September 15th, 2017.