[MSA-talk] Desktop SEM

Angela Halfpenny halfpenny_a at hotmail.com
Tue Apr 26 21:35:01 EDT 2016


Dear Colleagues,
Benchtop SEM's are great for undergraduate's as they are quick to learn and easy to use for collecting SE and BSE images and work well with a variety of sample shapes and sizes.
The issue for EDS data collection is that many of the benchtop SEM's on the market have a top accelerating voltage of 15 keV which due to overvoltage means X-ray emission up to only 5.5 keV can only be activated. This means the benchtop versions are not ideal for research.
Many of the benchtop systems do not come with a specific, separate, secondary electron detector unless you pay extra.
If you are interested in performing depth of field imaging in some systems the height of the sample is set by hand, practically this means getting a good depth of field image is very difficult as each time you want to change the height of the sample you have to remove it from the chamber and then alter the height by hand and then put it back into the chamber again and hope it is in the correct position.
Personally I think benchtop SEM's are fantastic for basic imaging but not really a EDS research tool.
If you do not have a larger budget available but are looking for a system suitable for research applications I would look the the manufacturers entry level SEM with a LaB6 emitter. 
Recently I have been introduced to the Tescan SEM's and their entry level Vega system would be worth a demonstration and a quote.To create a research benchtop system you would need to add an Everhart-Thornley secondary electron detector, automated sample height system for depth of field imaging and buy a benchtop system which operates up to 30 keV.This is why I recommend getting a quote for a variety of suitable benchtop systems as well as an entry level SEM system.
Please feel free to contact me directly for a more detailed discussion
Dr Angela Halfpennyangela.halfpenny at curtin.edu.au
> From: msa-talk-request at minlists.org
> Subject: MSA-talk Digest, Vol 31, Issue 8
> To: msa-talk at minlists.org
> Date: Sat, 23 Apr 2016 17:28:16 -0400
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> Today's Topics:
> 
>    1. Pre-Goldschmidt Workshop: Computational thermodynamics	and
>       petrology with the MELTS family of models (Paul Asimow)
>    2. Looking for Used Hillquist Thin Section Machine (Genevi?ve Robert)
>    3. DCO symposium at Yokohama June 26th 2016 (Eiji Ohtani)
>    4. nanoScience Phenom XL desktop SEM
>       (Johnson, Elizabeth Baedke - johns2ea)
>    5. Francesco Paolo Sassi (Bernardo Cesare)
>    6. Post-Doctoral Positions at Florida State University
>       (Mainak Mookherjee)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 19 Apr 2016 08:52:06 -0700
> From: Paul Asimow <asimow at gps.caltech.edu>
> To: MSA public List serve <msa-talk at minlists.org>
> Subject: [MSA-talk] Pre-Goldschmidt Workshop: Computational
> 	thermodynamics	and petrology with the MELTS family of models
> Message-ID: <5B581598-D8C2-4C58-ACC2-E9DD206A48A1 at gps.caltech.edu>
> Content-Type: text/plain; charset="utf-8"
> 
> Dear Colleagues,
> 
> Mark Ghiorso, Guil Gualda, Roger Nielsen, Paula Antoshechkina and I are pleased to announce that we are presenting a two-day pre-Goldschmidt workshop in Yokohama this summer on the use of all the MELTS models for computational petrology (including pMELTS, rhyoliteMELTS, and the new H2O-CO2 mixing model; with practical instruction on installing and running the Graphical User Interface, the upcoming version 2 of alphaMELTS, MELTS_Excel, PhasePlot and more), including for the first time the new TraceD?s database that allows optimum use of the modal abundances calculated by MELTS to construct bulk partition coefficients and follow trace elements through a variety of closed and open-system petrological processes. Workshop registration is handled through the Goldschmidt Conference registration site. Please see http://goldschmidt.info/2016/eventTypeView?type=Workshop#event5 <http://goldschmidt.info/2016/eventTypeView?type=Workshop#event5> and
> http://magmasource.caltech.edu/goldschmidt/ <http://magmasource.caltech.edu/goldschmidt/> .
> 
> =======================================
> Paul Asimow                    asimow at gps.caltech.edu
> Professor of Geology and Geochemistry
> California Institute of Technology           M/C170-25
> Pasadena, CA 91125 USA
> (626)395-4133                           FAX (626)395-1995
> =======================================
> 
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> ------------------------------
> 
> Message: 2
> Date: Tue, 19 Apr 2016 14:54:17 -0400
> From: Genevi?ve Robert <robert.genevieve at gmail.com>
> To: msa-talk at minlists.org
> Subject: [MSA-talk] Looking for Used Hillquist Thin Section Machine
> Message-ID:
> 	<CAOtkft8qj2pQsXfaLCHd95fmgyoi1Ci8fVBvudONtaS6P623Wg at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
> 
> Hello everyone,
> 
> My department would like to purchase a used Hillquist thin section
> machine, should anyone have a functional/salvageable one they would
> like to part with.
> 
> Any leads welcome!
> 
> Genevieve Robert
> Bates College Geology
> Lewiston, ME
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 21 Apr 2016 00:37:09 +0900
> From: Eiji Ohtani <ohtani at m.tohoku.ac.jp>
> To: MSA-talk at minlists.org
> Cc: Fumio Inagaki <inagaki at jamstec.go.jp>,	Kagi Hiroyuki
> 	<kagi at eqchem.s.u-tokyo.ac.jp>,	Yuji SANO <ysano at aori.u-tokyo.ac.jp>
> Subject: [MSA-talk] DCO symposium at Yokohama June 26th 2016
> Message-ID: <1461166629841715.125877832 at zmmt02.m.tohoku.ac.jp>
> Content-Type: text/plain;	charset="ISO-2022-JP"
> 
> Dear Colleagues,
> We are planning to make a DCO symposium on June 26, 2016 one day before the GS conferene at Yokohama.It is open for public and free. The program and flyer are attached with this e-mail. I hope you can attend the symposium.
> 
> DCO Symposium in Yokohama:
> Deep Life, Deep Energy, Reservoirs and Fluxes,and Extreme Physics and Chemistry
> 9:00 a.m. - 5:30 p.m.Sunday, 26 June 2016, 5F Room 502
> Pacifico Yokohama Conference Center, Yokohama, Japan
> 
> Scope
> Recent progress of the Deep Carbon Observatory (DCO) is transforming our understanding of deep carbon in Earth. DCO leverages the knowledge and skills of a global, interdisciplinary research community of scientists with a shared passion for transforming our knowledge of carbon. This symposium will present recent exciting results from the Deep Life, Deep Energy, Reservoirs and Fluxes, and Extreme Physics and Chemistry Communities. We also take this opportunity to warmly welcome members of the Japanese geochemical, geophysical and geomicrobiological communities to join the DCO Science Network.
> 
> Please register online by 21 June 2016. Registration is FREE.
> Attendees do not need to be registered for Goldschmidt 2016 to attend this Symposium.Please visit following website:
> https://deepcarbon.net//symposium-yokohama
> 
> Symposium Organizing Committee
> Eiji Ohtani (Tohoku University)
> Fumio Inagaki (JAMSTEC)
> Kagi Hiroyuki (University of Tokyo)
> Yuji Sano (University of Tokyo)
> 
> 
> 
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Thu, 21 Apr 2016 01:08:19 +0000
> From: "Johnson, Elizabeth Baedke - johns2ea" <johns2ea at jmu.edu>
> To: "msa-talk at minlists.org" <msa-talk at minlists.org>
> Subject: [MSA-talk] nanoScience Phenom XL desktop SEM
> Message-ID:
> 	<1CE3AF77681A05438A6B3192777D4614724DAF68 at IT-EXMB2.ad.jmu.edu>
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi,
> 
> Does anyone have opinions or advice about desktop SEM units, and specifically the nanoScience Phenom XL?  We are looking into purchasing this instrument.  A college near us has one, and is pleased with it.
> 
> I am specifically interested in hearing about any experiences using the SEM with rectangular thin sections; the quality of the EDS analyses; and the reliability / maintenance required.  We anticipate using this extensively in undergraduate courses and research projects, but we would like to acquire publishable data.
> 
> Thanks for the help!
> Liz Johnson 
> Associate Professor
> Department of Geology and Environmental Science
> James Madison University
> e-mail: johns2ea at jmu.edu
> 
> ------------------------------
> 
> Message: 5
> Date: Sat, 23 Apr 2016 18:40:35 +0200
> From: Bernardo Cesare <bernardo.cesare at unipd.it>
> To: MSA-Talk <MSA-talk at minlists.org>
> Subject: [MSA-talk] Francesco Paolo Sassi
> Message-ID:
> 	<20160423184035.Horde.hfB432SQbbohP15IJ3Ucxly at mailweb.unipd.it>
> Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes
> 
> Dear all,
> 
> With deep sadness we announce that Francesco Paolo Sassi, retired
> professor of Petrology at the University of Padova, Italy, passed away
> last night, at the age of 80.
> Francesco devoted his life to research and to his beloved family. With
> his forward thinking activity and networking capacities he strongly
> contributed to bringing the italian Geosciences, and metamorphic
> petrology in particular, to an internationally renowned status.
> Francesco will be greatly missed.
> 
> Bernardo Cesare
> 
> 
> 
> 
> 
> 
> 
> 
> *******************************************************************
> Bernardo Cesare
> Dipartimento di Geoscienze, Universita' di Padova
> Via G. Gradenigo, 6, I-35131 PADOVA 	ITALY
> Tel: ++39-049-8279148	Fax: ++39-049-8279134
> email: bernardo.cesare at unipd.it
> Web site: http://147.162.183.153/bernardo/berning.html
> ACME Group: http://147.162.183.153/ACME
> MicROCKScopica: http://www.microckscopica.org
> InsiemePerWamba: http://www.insiemeperwamba.org
> *******************************************************************
> "The only real failure is the failure to try, and the measure of
> success is how we cope with disappointment, as we always must."
> 																 From the movie: The Best Exotic Marigold Hotel
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Sat, 23 Apr 2016 10:59:46 -0400
> From: Mainak Mookherjee <mmookherjee at fsu.edu>
> To: <msa-talk at minlists.org>
> Subject: [MSA-talk] Post-Doctoral Positions at Florida State
> 	University
> Message-ID: <11A1285E-B241-4900-B343-EE4A478EE2A8 at fsu.edu>
> Content-Type: text/plain; charset="us-ascii"
> 
> Dear All,
> 
> I would like to draw your attention to Postdoc positions at Florida State University as detailed below-
> Earth Materials Laboratory at the Department of Earth, Ocean and Atmospheric Sciences, Florida State University invites applications for post-doctoral positions in high-pressure Mineral Physics research. Post-doctoral appointments will be given for one year, with the potential for renewal for a second year pending progress and available funding. Positions are available starting immediately and will remain open until filled.
> Minimum qualifications: A Ph.D. in Earth Sciences, physics, chemistry, materials science engineering, with a background in high-pressure experiments and/or simulations.  Interested candidates should send a cover letter, curriculum vitae with publication lists, contact information for three references, and statement of research interests. Please send application materials by email to Mainak Mookherjee (email: mmookherjee at fsu.edu)
> 
> best wishes
> Mainak
> 
> ----------------------------------------------------------------------------
> Mainak Mookherjee
> Assistant Professor
> Earth, Ocean and Atmospheric Sciences
> Florida State University
> Tallahassee, Fl, 32310, USA
> 
> Phone:(850) 644-1536 (Office)
> Email: mmookherjee at fsu.edu
> Email: mainak.mookherjee at gmail.com
> URL:http://myweb.fsu.edu/mmookherjee
> ----------------------------------------------------------------------------
> 
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