mipa status report (miniature ion precipitation analyzer)
DESCRIPTION
MIPA status report (Miniature Ion Precipitation Analyzer). David McCann, Swedish Institute of Space Physics, Kiruna, Sweden Prepared for GSST Workshop, Gothenburg 050912 ( [email protected] ). MIPA basic features. Three major sub-units: 1. Electrostatic deflector - PowerPoint PPT PresentationTRANSCRIPT
1
MIPA status reportMIPA status report(Miniature Ion Precipitation Analyzer)
David McCann, Swedish Institute of Space Physics, Kiruna, Sweden Prepared for GSST Workshop, Gothenburg 050912 ([email protected])
Parameter Value
Energy range 10eV – 15keV
Energy resolution ∆E/E 7%
Viewing angle 9° x 180°
Angular resolution 9° x 22.5°
Mass resolution 6 mass groups
Energy elevation cycle 8s
Geometric factor 0.14 cm2 sr eV
Three major sub-units:
1. Electrostatic deflector
4. deflector high voltage plates
2. Electrostatic analyzer
5. analyzer high voltage plate
11. UV attenuation structure
3. time-of-flight unit
6. time-of-flight cell
7. start surface
8. stop surface
9. start ccem*
10. stop ccem*
* Ceramic Channel Electron Multiplier
MIPA basic features
i. A TM (Technological Model) of MIPA is fully integrated and set up for tests.
i. HV stability tests has been performed without encountering any problems.
ii. A fully functional prototype of the HVPS has been integrated and will be used for calibration tests of the TM.
iii. Layout of the time-of-flight electronics is on-going and will be concluded within the next few weeks.
i. A fully functional rough prototype has been integrated for use on the TM.
• Thermal tests of the CCEM’s have been concluded.
• Noise levels do not exceed acceptable levels.
Status
Left:i. View of TM set-up in vacuum chamber at IRF.
ii. The box under the sensor will be used for storing
the hvps and time-of-flight electronics boards.
MIPA TM
Right: i. View of TM without sensor
cover.
HVPS
View of the HVPS.
Dimensions:
~75g
120x60x30 mm
TOF electronics
Picture of the time-of-flight electronics board (rough prototype) set up in the vacuum chamber at IRF.
Dimensions (of flight board):
~80g
120x60x15 mm
UV trap
Left:
i. View of the base structure with deflector grid and UV rejection unit integrated.
Right:
i. Focused view of the UV rejection plates.
- The unit comprise 14 blackened aluminum plates. Interplate spacing is ~0.2mm with plates roughly 0.1mm thick
MIPA is well on schedule.
We will be able to conclude tests and calibration of the TM during oct/nov 2005.
As of now, no critical action items are identified.
Status comments