PHOBOS-GRUNT GAP \ TDLAS GAP G. Durry, J. Cousin, L. Joly GSMA, CNRS, Reims University, France I....
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Transcript of PHOBOS-GRUNT GAP \ TDLAS GAP G. Durry, J. Cousin, L. Joly GSMA, CNRS, Reims University, France I....
![Page 1: PHOBOS-GRUNT GAP \ TDLAS GAP G. Durry, J. Cousin, L. Joly GSMA, CNRS, Reims University, France I. Vinogradov, A. Titov, O. Korablev, M. Gerasimov IKI,](https://reader038.fdocuments.us/reader038/viewer/2022103021/56649c7c5503460f9493172a/html5/thumbnails/1.jpg)
PHOBOS-GRUNTGAP \ TDLAS
GAP
G. Durry, J. Cousin, L. Joly
GSMA, CNRS, Reims University, France
I. Vinogradov, A. Titov, O. Korablev,
M. Gerasimov
IKI , Moscow
N. Amarouche, DT-INSU\CNRS, France
Second Moscow Solar System Symposium (2M-S3)
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He
MSCL1CL2CGT
CalGT
PR1
PS1
PR2
PS2
SV
IT2 IT1
CL
TCD1TCD2
GC
TCD3
TDLAS
Sv1
v2
v3 v4
v5
v6
v7v8
v9
v10
v11
v12
v13v15
v16
PC1PC2PC3PC6…
v14
CGT – carrier gas tank (2 tanks with gas regulators and sensors each) CalGT – calibration gas tankPR1,2 – pressure regulatorsPS1,2 – pressure sensorsSV – sample volumeIT1,2 – injection traps for permanent gases and for organicsCL1,2 – capillary columns for permanent gases and for organicsTCD1,2,3 – thermal conductivity detectorsCL – capillary leakS – separatorv1-15 - valves
GC – gas chromatographTDLAS – tunable diode laser
spectrometerPC1-6 – pyrolytic cellsMS – mass-spectrometer
Schematics of Gas Analytic Package
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Laser (TLaser, ILaser) = mol
TLaser
ILaser
PeltierFo F1
Laser
Laser
CH4, 40 Torr, 8cm, ~ 1.65 m
Fo
F1
Principles
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Inheritage: the balloonborne laser diode sondes (SDLA) for the Earth stratosphere
CH4
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Targeted molecular species:
C2H2 , 1.53m , expected molecular absorption depth ~ a few %H2
16O , 12CO2, 2.68m , expected molecular absorption depth ~ a few tens %HDO, H2
18O, H217O , 2.64m , expected molecular absorption depth ~ a
few %13CO2, OC18O, 2.04 m , expected molecular absorption depth ~ 0.5%
Antimonide DFB laser diodes (Nanoplus GmbH)
Precision error ~ a few % for a measurement time ~ a few seconds
Reference: G. Durry, J.Li, I. Vinogradov & al., Applied Physics B, 99, pp 339-351, 2010.
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TDLAS
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Spectrocopy and calibration
H2O (10%) + He, 220 hPa Experimental spectrawith TDLAS - LM G. Durry, J.Li, I. Vinogradov & al.,
Applied Physics B, 99, pp 339-351, 2010.
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Laboratory Spectrocopy for Phobos-Grunt
Experimental spectra
CO2 isotopologues
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C2H2
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CO2
H2O
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H2Oisotopologues
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Calibration of the TDLAS- FM integrated into the Lander
CO2 (~ 2000
ppmv) + HeP ~ 700 mbarT ~ +70°C = 2.68 m
CO2 (~ 2000
ppmv) + HeP ~ 260 mbarT ~ +70°C = 2.68 m
experimentalsimulated
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Pulsed insertion of a small portion of pure CO2 and transporting it along the QM GC capillaries and through the TDLAS optical cell by
the carrier gas He. Time interval between successive spectra, recorded by the
laser#4, is 18 s:
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References :
TDLAS – Phobos-Grunt:“Near infrared diode laser spectroscopy of C2H2, H2O, CO2 and their isotopologues and the application to TDLAS, a tunable diode laser spectrometer for the Martian PHOBOS-Grunt space mission”, G. Durry, J.Li, I. Vinogradov, A. Titov, A.V. Kalyuzhny, L. Joly, J. Cousin, T. Decarpenterie, N. Amarouche, M. Liu, B. Parvitte, O. Korablev, M. Gerasimov, V. Zéninari, Applied Physics B, 99, 339-351, 2010.
Spectroscopy of C2H2 for Phobos-Grunt:«Diode laser spectroscopy of two acetylene isotopologues (12C2H2, 13C12CH2) in the 1.533 µm region for the PHOBOS-Grunt space mission», J. Li, L. Joly, J. Cousin, B. Parvitte, B. Bonno, V. Zéninari, G. Durry, Spectrochimica Acta Part A, 74, pp1204-1208, 2009.
«Self-broadening coefficients and positions of acetylene around 1.533 μm studied by high-resolution diode laser absorption spectrometry» , J.Li, G. Durry, J. Cousin, L. Joly, B. Parvitte, and V. Zeninari, Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 111, pp 2332-2340, 2010.
Spectroscopy of H2O and CO2 isotopologues for Phobos-Grunt:G. Durry & al., « Laser diode spectroscopy of the H2O isotopologues in the 2.64 micron region for the in situ monitoring of the Martian atmosphere », Infrared Physics & Technology, Vol. 51, Issue 3, pp229-235, 2008.
Le Barbu T.; Zéninari Z .; Parvitte B.; Courtois D. and G. Durry, 2006, « Line strengths and self-broadening coefficients of carbon dioxide isotopologues (13CO2 and 18O12C16O) near 2.04 µm for the in situ laser sensing of the Martian atmosphere », Journal of Quantitative Spectroscopy and Radiative Transfer, 98, 264-276, 2006.
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Perspectives
Missions «Moon-Glob» and «Moon-Resource»: improved after existing TDLAS Phobos-Grunt-like
instrument, integrated inside the GAP.
Mission «Venus-D»: stand-alone TDLAS with quantum cascade lasers,
like previously proposed for «Venus-EVE», but placed at the Venus-D Descent Module
for measuring of sulphuric components of Venussian atmosphere
from high altitudes down to its surface level.