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News from this group
||Larry's last paper, "Water alteration of
rocks and soils on Mars at the Spirit rover site in Gusev crater", will
appear in Nature magazine July 7th issue.
||June 24, Memorial celebration for Dr. Larry A.
Haskin at Washington University
Two manuscripts with Larry as co-author,
reporting the detailed study of sulfate deposition in subsurface regolith at
deep trenches and potential existence of phyllosilicates in Wooly Patch
outcrop at Gusev, were submitted to J. Geophysical Research - Planets.
Ben Green, successfully defended
his research paper, got his Master degree!
||We lost Larry ....., the sadness is unspeakable.
Five members of the research group participated the 36th Lunar and
Planetary Science Conference at Houston.
||Alian, and Brad attend the
MMRS-MSL debriefing at NASA-HQ at Washington DC. They learned that
MMRS was ranked the highest category "I", with summary
scores of "High" in all three evaluated areas including Science merit, Science
Implementation, and Technical, Management, and Cost (TMC), and overall risk
rating of "low". The only reason for its non-selection is the budget limitation
of MSL mission.
Alian, and Brad attend Athena
Science team meeting at JPL at January 24-25 2005, post one-year
anniversary for Spirit and celebrated one-year anniversary for Opportunity
with all science and engineer team members. They gave two
talks at the team meeting about the science discoveries by both rovers.
6 abstracts from this group (with group members as first
author) were submitted to Lunar and Planetary Sciences Conference of this
|January -- December
||Larry , Alian, and Brad arrive at
JPL at January 2 2004, joined by other member of Athena science team,
witnessed the successful landing of two Mars rovers: Spirit and Opportunity
at Gusev crater and Meridiani plain on Mars. They immediate went into the
operations for surface exploration.
Both rovers and their science and engineer team achieved successful
primary mission (90 sols), extended mission (180 sols), extended-extended
mission (270 sols), one-year anniversaries, and are still doing great
||Larry and Brad will join other
science team members for a dual PORT at JPL. They will operate two test
rovers at the same time --- just like what we will do in January 2004 for
the twin rovers on Mars!
||Alian participated the 2003
MEPAG meeting at JPL. She presented two posters: one was on the
development of MMRS, another was about "Wheel-Science", related to the
development of two "Contact Survey" instruments.
||Alian went to JPL again. She
attended a flight school (sounds exciting!) and then PORT three --
Post-launch Operation Readiness Test.
||Alian and Brad attended the 6th
International Conference on Mars at Caltech. Alian presented a poster on the
development of MMRS
||Larry, Alian, Brad, and their
families all went to Florida Cocoa Beach for MER science team meeting,
and for MER-B (opportunity) launch from Kennedy Space Center.
||Larry, Alian, and Brad
participated the Thread Test H of Mars Exploration Rover at JPL.
||Dr. Shiv Sharma from University
of Hawaii brought his Remote-Raman telescope unit to St. Louis. We coupled
the Raman signal from his unit into the spectrograph of MMRS_BB1d, and get
excellent spectra (photos).
||All members of research group
attended 34th Lunar and Planetary Science Conference at Houston. We presented
6 talks and 7 posters.
Larry and Alian attended "Life beyond Mars" workshop at
Phoenix. They presented MMRS to exobiology community
Alian went to National Ice Core Lab (Denver), with Lonne
Lane and Ken Manatt from JPL, they conducted the first cold test of
MMRS at -24C. It functions very well (photos).
||MMRS team hold a "Show and Tell"
at JPL. 23 managers, scientists, and engineers came to see our Advanced
Brassboard of MMRS (photos).
||Larry , Alian, and Brad went to Pasadena attending '03 Athena
Science team meeting. They also visited MMRS engineering team at JPL.
13 abstracts were submitted to 2003 LPSc.
||Alian went to FACSS meeting at Providence,
RI. She took the chance visited the IR lab of Prof. Carle Pieters at
Brown University, and had a great discussion with her.
Alian went to JPL to have a comprehensive testing of the
newly finished advanced brassboard of MMRS. Its performance is significant
superiors than previous breadboard 1D
Randy, Brad, Jeff, and Ryan attended
“The Moon Beyond 2002: Next Steps in Lunar Science and Exploration” meeting
in Taos New Mexico from September 12-14. Presentations were made by Randy,
a review of data and observations for the 3.9 Ga age of the Nectaris Basin;
Brad, a whole-Moon chemical mass balance calculation for Th and Al; and
Jeff, an analysis of remotely sensed data of Mare Australe. They went for a
great field trip too.
near-mid IR spectrometer Nexus 670 from Nicolet was installed in MD 056.
||Larry, Brad, and Alian jointed 2002FIDO field
test activity. They also showed the MMRS brassboard to members of MER
science team (photos).
Larry and Alian went to JPL to test the performances of
the Advanced Breadboard of MMRS, it was also called "Demo Model on
A few photos
inside of the assembling and testing room of MER03 rovers,
taken during last JPL trip.
||A Near-mid IR spectrometer was ordered as
part of ASTID project. It will arrive in August.
||The advanced brassboard model of MMRS is
entering its final assemblage stage at JPL. It is a beauty!
||Whole group went to Houston for 32th LPSc. We
presented four talks and nine posters. Miss Flor, a student of Kirkwood High
School, also presented a poster on her summer research project with Jeff.
||Larry and Alian went to Pasadena attending '02 Athena
Science team meeting
(photo). They also visited MMRS engineering team at JPL and saw the miniaturized
electronics for MMRS as the first time
||16 abstracts were submitted to 2002 LPSC, 14 of them are
first authored by our group members. Isn't it nice not to have LPSC abstracts hanging over
our heads this X-mas?
||Larry and Alian attend the
MEPAG workshop at Pasadena, CA (photo).
Larry talked about some guidlines for Mars on-surface exploration and
sample-return missions. Alian presented the current status of Mars Microbeam Raman
fiber cold test get preliminary excellent results. The light throughput losses are
<1% for stretching and bending motion at -77C, the light losses for 230 degree twisting
motions at -50C are <9%. (photos)
Larry and Alian attend the MER-FIDO
rover field test, first at JPL and then at field test site. Through the test, they
learned how to function as a "remote" field geologist (photos).
At home, Brad prepared the rock samples for parallel
TES, APXS, and Mossbauer measurements. Karla worked on the thin section observations and
Raman measurements of the same set of samples.
||Larry and Alian went to JPL attending the second Mars Yard
MER-FIDO rover test (photos)
||The further test on new BB1d shows that it has >20%
sensitivity of a laboratory Raman system (Kaiser HoloLab5000-532nm). It has a depth of
sampling field +- 5mm on a calcite crystal. It provided 100% informative spectra from a
set of point-counting measurements on a dark-colored basalt rock. Good
spectra from a fine grained epsomite-quartz "pseudodoricrust", and from an
ancient chert sample of very low C concentration (~50 ppm) were also obtained.
members of the research group went to Houston for 32nd Lunar & Planetary Science
conference. We presented six talks and five posters, all were very successful (photos).
||Ken and Chris from JPL engineering team come to WashU. They
install the new filters into the BB1d. The premary test shows a great increase of
sensitivity of the system. We are very exciting. (photos)
||We again beat the deadline for abstract submission to the 32st
Lunar and Planetary Science Conference with 18 abstracts. Twelve of them are about lunar
geology and geochemistry, and six of them are about in-situ planetary Raman spectroscopy.
The last one (Jeff's) was entered just 6 minutes after the LPI submittal site closed. The
abstracts can be found at our publications link.
Larry and Alian attended the Science
team meeting of the Mars Exploration Rover (MER) mission (2003) in Pasadena. They gave a
seminar entitled "Determining past Martian environments with the Mars Microbeam Raman
Spectrometer" at JPL. They also saw good progress in testing of the optical
fibers for the Mars Microbeam Raman Spectrometer (MMRS).
||Larry, Randy and Brad attended the meeting
"New View of the Moon III" at
the Lunar and Planetary Institute in Houston.
||Alian and Larry attended the first Science Team meeting of newly selected
Mars Exploration Rover mission in Pasadena.
Alian presented an
invited talk about our study of Martian meteorite
EETA79001 at the FACSS meeting in Nashville.
||Alian and Larry as members of the Raman science team and JPL engineers
working with them presented the case for including the Athena Raman Spectrometer on the
2003 MER missions to the rover engineers in an emergency meeting at JPL.
||July 6-13, Larry and Alian
gave talks on the Athena Raman Spectrometer at the University of Hawaii at the invitation
of Dr. S. Sharma. From there, they went to the big island to attend the IUMAS_2000 meeting
where they gave talks on the same subject at the invitation of the International Microbeam Analysis Society. They also visited
Volcanoes National Park, where Alian got her first close look at volcanic terrain.
18-20, Larry, Brad and Alian attended the workshop "Concepts and Approaches for the
robotic exploration of Mars" at the LPI in Houston.
Larry talked about "Why
send the Athena Raman spectrometer to Mars?", Alian talked about "The Athena
Raman spectrometer", and Brad talked about "Remotely-sensed geology from
lander-based to orbital perspectives: results of FIDO rover field tests".
||Larry and Alian went to JPL twice for evaluation tests of two breadboard
instruments, Athena Raman system BB1C and BB1D.
All members of our research group went to Houston for
31st Lunar and Planetary Science Conference. We gave XX talks and presented YY posters.
||We somehow beat the deadline for submission by e-mail of 15 abstracts for
the 31st Lunar and Planetary Science Conference. The last one (Jeff's) was
entered just 2 minutes before the site closed. Preparing these conference abstracts is a
frantic way to start a new year, but we do it every year, anyway. The abstracts can be
found at our publications link.
||A new graduate student, Kathleen Abbott, joined our
||We finished the performance tests of the BB1b breadboard
that we acquired in August. We were sorry to see this cute little system leave our
laboratory. Development work is continuing at JPL.
||The miniaturized breadboard of our Raman instrument for
Athena, BB1b, came to our lab at Wash. U. from the Jet Propulsion Laboratory.
||Larry and Alian went to JPL several times to help with the
development and initial testing of the first miniaturized "breadboard" of our
Raman spectrometer system for the Athena instrument package. It is known by the
unsophisticated name of BB1b.
||Larry Haskin went to JPL and to Cornell U. for meetings
concerned with Mars sample collection and Athena team business.
||Weve got visitors ! Dr.
Paul Lucey and Dr. Shiv Sharma from Hawaii University. Paul gave a talk about the 1997
Clementine mission that provided lunar remote sensing. Recently, Paul and Brad Jolliff
have been collaborating using data from both lunar remote sensing and lunar samples to
develop a better calibration for the iron and titanium concentrations as obtained from the
Clementine data using methods pioneered by Paul. Shiv is an excellent spectroscopist who
has done a lot of Raman studies on minerals. He and Alian plan to collaborate in the area
of planetary Raman spectroscopy.
Alian went to JPL for further
Athena Raman BB1b development work during the last two weeks of April. She had a good time there.
||Six members of the research group went to Houston during
the week of March 15-19 for the 30th Lunar & Planetary Sciences Conference. We
presented 5 talks and 3 posters, and met lots of old friends. It made all the
preparations, which are certainly not the most fun part of our jobs, all worthwhile.
Okay, we had a lot of fun
in Houston. Our talks and posters went well. In addition, we met some
"historic" members of Larry Haskin's research group (see the photo in our photo
album). Jeff organized a team for the Chili Cookoff. His team won an award for the most
unusual chili. (Why was the trophy a turkey?)
||Our back-scattering Mössbauer spectrometer is installed in
our lab in McDonnell Hall. It has a 50 mCi 57Co source (for 57Fe
Mössbauer spectroscopy) and two 13 mm2 PIN diode detectors. We are measuring
our first sample -- a hematite slab. We expect to operate this spectrometer 24 hours a
day, 7 days a week.
Now that winter, 1999 is almost over, the
air-conditioning in most of our offices and labs in Wilson Hall is finally
operating. Now, our Raman spectrometer is back in our Wilson Hall lab and ready to
carry out more measurements on rocks and meteorites.
||Whew! We somehow met the deadline for abstract submission
to the 30th Lunar & Planetary Science Conference in Houston. We are pleasantly
surprised that our group members authored or coauthored 17 abstracts. Ten of them are
about lunar geology and geochemistry, and four of them are about in-situ planetary Raman
spectroscopy. We are all still friends despite a hectic time of preparing abstracts in
rooms without heat!
Our laboratory Raman spectrometer was upgraded to a
two-frequency system; it can be used with either a 632.8nm (He-Ne laser) or a 532nm (YAG
laser). We have installed it temporarily in McDonnell Hall until renovations to our
Raman lab in Wilson Hall are finished.
In fact, most of our
offices and labs are in uncomfortable condition until the new air-conditioning system
becomes operational. Right now, these rooms are very chilly, you have to wear a winter
coat to work in them.
A back-scattering Mössbauer spectrometer was
delivered to our group. It was built at the Johnson Space Center by Dr. Dick Morris.
New graduate student Ryan A. Zeigler joined our research group.
Dr. Jeffrey Gillis, recently graduated from
Rice University, joined our group as photogeologist.
Ms. Karla Kuebler, from Hap McSweens
group University of Tennessee (Knoxville), joined our research group to become our
Specialist for Raman spectroscopy and neutron activation analysis.
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