fallpresent2003 htx i1159

Sensor development for future space missions: 

Sensor development for future space missions Heikki Sipilä Metorex International Oy

Slide2: 

ANTARES PROJECT brings together SCIENCE and INDUSTRY Funded by ACADEMY AND TEKES

Collaboration for Sensor Development: 

Collaboration for Sensor Development University of Helsinki Observatory Department of chemistry Helsinki Institute of Physics University of Joensuu University of Jyväskylä VTT Patria new Technology Metorex International Nanonoway

Criteria for Project Selection: 

Criteria for Project Selection Future needs in ESA missions (XEUS) Complementary to the TRP and GSTP projects Potential exploitation of technologies in commercial applications

XEUS: 

XEUS

Cryogenic Detectors: 

Cryogenic Detectors Superconductive hot-spot bolometer for sub-mm wave detection X-ray calorimeter (TES)

Superconducting hot-spot bolometer: 

Superconducting hot-spot bolometer Air-bridge structure fabricated from Nb, a superconductor below 9 K Sensitivity ten times less than state of the art (at 4K)

Superconducting hot-spot bolometer: 

Superconducting hot-spot bolometer

Applications (sub-mmw bolometers): 

Applications (sub-mmw bolometers) Remote, planetary & atmospheric sensing Solar observations (flare eruptions) Concealed weapon detection Detection of shallow buried landmines Passive imaging of targets in bad conditions Early detection of skin cancers Stand-off detection of biological and chemical weapons

Slide10: 

X-ray calorimeter (TES)

X-ray calorimeter (TES): 

X-ray calorimeter (TES)

Applications (X-ray calorimeters): 

Applications (X-ray calorimeters) Space astrophysics - Astro-E2, Constellation-X, XEUS Material analysis - micro-analysis of elements - detection of chemical shifts of compounds

Slide13: 

Analysis of materials through X-ray fluorescence Integrated circuit being fabricated Impurity particle Scanning electron microscope TES-based X-ray spectrometer Electron beam Characteristic X-ray radiation - micro-analysis of elements and detection of chemical shifts of compounds Detectors for future X-ray satellites (XEUS) Detection of the first black holes in the Universe Age determination of early galaxies by accurate determination of red-shift Studies of the evolution of early black holes in the Universe X-ray calorimeter applications

SQUID-based detectors for medical diagnostics and brain research : 

SQUID-based detectors for medical diagnostics and brain research Magnetic Resonance Imagers (MRI) - New SQUID detectors enable 3D-imaging of human brain with a million times weaker magnetic field than traditional MRI - Hydrogen (water) content in brain tissue is measured (MRI), but also phosphorus can be measured (fMRI, functional MRI) Magnetoencephalography (MEG) brain scanner measures electrical currents in brain (neural currents) with super-sensitive SQUID detectors device by Neuromag, SQUIDs by VTT

Inductive Grid Filters: 

Inductive Grid Filters IR-radiation blocking in the front of soft x-ray detector

Definitions: 

Definitions period = d hole size = c open area fraction = (c/d)2 thickness = h

Calculated transmissions: 

Calculated transmissions Grid dimensions: period 380 nm, opening 330 nm, thickness 500 nm.

Grid patternPeriod 380 nm, linewidth 90 nm: 

Grid pattern Period 380 nm, linewidth 90 nm

Gold gridPeriod 400 nm, opening 210 nm and thickness 400 nm: 

Gold grid Period 400 nm, opening 210 nm and thickness 400 nm

Measured transmission: 

Measured transmission Gold grid with period of 400 nm, opening 210 nm and thickness 400 nm.

TIBr Detectors: 

TIBr Detectors Hard x-ray imaging spectroscopy

TlBr Chrystal: 

TlBr Chrystal