Researchers Contribute to the Database on the Magnetic Properties of Meteorites

Cover of Icarus

Aleksey Smirnov (GMES) and Katie Bristol ’20 (M.S. Geophysics), currently a Ph.D. student at the University of Florida, collaborated as co-authors on a research paper published in Icarus, a prestigious journal renowned in the field of planetary science.

The paper is titled “Magnetic characterization of the Daule chondrite (Ecuador’s first meteorite fall): The case of elusive tetrataenite?”

The study also involved researchers hailing from Ecuador, Iceland and Norway.

Two representative samples of bulk Daule material were analyzed using an FEI Philips XL 40 Environmental Scanning Electron Microscope (ESEM) at the Applied Chemical and Morphological Analysis Laboratory at Michigan Technological University (MTU).

  • The morphology and texture of mineral grains were examined using backscattered electron (BSE) imaging.
  • The elemental composition of the material was determined through energy-dispersive x-ray spectroscopy (EDS) using a ∼ 15 kV accelerating voltage.
  • Basic elemental mapping was performed.

The new data contribute to the database on the magnetic properties of meteorites, in which meteorites of Daule’s type are underrepresented.

K.E. Bristol, A.V. Smirnov, E.J. Piispa, M.R. Ramirez Navas, A. Kosterov, E.V. Kulakov, Magnetic characterization of the Daule chondrite (Ecuador’s first meteorite fall): The case of elusive tetrataenite?, Icarus, Volume 404, 2023.

https://doi.org/10.1016/j.icarus.2023.115684

SEM Sample Coating Procedure

This is to inform you about the recent updates made to the SEM sample coating procedure in order to streamline the process and enhance its efficiency.

To have your samples coated, please drop them off at the image analysis lab (M&M 631) in the designated desiccator. Samples should be labeled with your name, email address, and any special instructions. If necessary, you can find labels within the desiccator. Labeled samples should be placed in the intake section of the dessicator. Once samples have been left, please fill out the Training/Coating Questionnaire to notify ACMAL staff of your sample. 

Allow 2 days for us to coat your samples. Once completed your samples will be returned to the desiccator on the “Ready” shelf and we will send you an email.

ESEM Offline August 1–18, 2023

The instrument will be temporarily offline from August 1to August 18 to facilitate the installation of the SEMTech 8000 upgrade. During the upgrade period, the ESEM system will be inaccessible, and no reservations or usage will be possible. We kindly request that you plan your projects accordingly and make alternative arrangements for your imaging and analysis requirements during this period.

To ensure a smooth transition and help you familiarize yourself with the upgraded system, we will be offering training sessions for all ESEM users. These training sessions are mandatory for anyone intending to use the SEMTech 8000. The sessions will be conducted starting from August 19, once the upgrade is complete.

To schedule your training session, please sign up for training. You will be directed to our self-scheduling calendar, where you can choose a time slot that suits you best. Appointments are available starting August 19. Due to limited availability, we recommend scheduling your session at your earliest convenience.

Read the full announcement.

ESEM Upgrade to SEMTech 8000

Instrument Offline from 8/1 to 8/18

SEMView8000 Operator Console

I am writing to inform you about an exciting upgrade to our Environmental Scanning Electron Microscope (ESEM) system. ACMAL has received funding to upgrade the ESEM with the SEMView8000. We would like to take this opportunity to thank the Vice President for Research Office, the Institute for Materials Processing, the Materials Science and Engineering Department, and the MSE Senior Design team for making this upgrade possible.

The instrument will be temporarily offline from August 1 to August 18 to facilitate the installation of the SEMTech 8000 upgrade. During the upgrade period, the ESEM system will be inaccessible, and no reservations or usage will be possible. We kindly request that you plan your projects accordingly and make alternative arrangements for your imaging and analysis requirements during this period.

To ensure a smooth transition and help you familiarize yourself with the upgraded system, we will be offering training sessions for all ESEM users. These training sessions are mandatory for anyone intending to use the SEMTech 8000. The sessions will be conducted starting from August 19, once the upgrade is complete.

To schedule your training session, please sign up for training. You will be directed to our self-scheduling calendar, where you can choose a time slot that suits you best. Appointments are available starting August 19. Due to limited availability, we recommend scheduling your session at your earliest convenience.

We understand that this temporary unavailability and the training requirement may cause some inconvenience, and we apologize for any disruption it may cause to your work. However, we believe that the benefits of the SEMTech 8000 upgrade and the subsequent training will be instrumental in advancing our research capabilities.

If you have any urgent projects or time-sensitive samples requiring ESEM imaging during the upgrade period, please let us know as soon as possible. We will do our best to accommodate your needs either before or after the downtime.

We appreciate your understanding and patience during this upgrade process. The improved capabilities of the SEMTech 8000, along with the training sessions, will undoubtedly enhance our research capabilities and contribute to the success of our projects.

If you have any questions or concerns regarding the ESEM upgrade, the training sessions, or their impact on your work, please don’t hesitate to reach out to me directly. I am here to address any inquiries or provide additional information.

Related

Upgrades for ACMAL’s Environmental Scanning Microscope

ACMAL Welcomes EOF Lab Assistant Devon Miner

We would like to officially welcome our new lab assistant Devon Miner. Devon is an undergraduate in the Physics department and is planning on going to graduate school to study how to apply physics to nanotechnology. He enjoys outdoor activities throughout the entire year with some of his personal favorites being hiking and skiing. You can contact Devon if you need assistance with sample preparation or coating.

Devon Miner

ACMAL Update: Contact Information During Liz’s Vacation

I hope this email finds you well. I wanted to inform you that I will be going on vacation from May 29th to June 19th. During this period, if you encounter any issues or have any questions, please reach out to the following contacts:

  • For X-ray Facility questions, please contact
  • For Electron Optics Facility questions or sample preparation, please contact
  • For Scanning Probe Microscopy (AFM) & Surface Analysis (XPS) Facilities questions, please reach out to
  • For Confocal Imaging Facility questions, please contact
    • Dr. Marina Tanasova at 906-487-1163 or email mtanasov@mtu.edu (Cell Culture Lab & Flow Cytometer)
    • Jerry Lutz at 906-370-7402 or email jlutz@mtu.edu (Confocal)
  • In case of an emergency, call public safety by dialing 911.

These individuals, as experts in their respective areas, will be able to assist you promptly. However, please note that for general inquiries or matters not specific to a particular area, it is best to contact me upon my return.

I have complete confidence in the ACMAL team’s abilities to handle any issues that may arise during my absence. Thank you for your understanding and cooperation. I will be sure to get back to you promptly upon my return on June 19th.

Wishing you all continued success with your research.

Best regards,

Liz

IMPORTANT BUILDING NOTICE – M&M Elevators out of order

Both the freight elevator and the passenger elevator are out of order in the M&M Building. Facilities is aware and has contacted the elevator repair technician.

If you would like information on how to request ADA/disability accommodations please contact:
Employees: ADA Coordinator, adacoordinator@mtu.edu or 906-487-3310
Students: Student Disability Services, sds@mtu.edu or 906-487-3558

-Wendy


Wendy Hackman
Facilities Management
146 Walker Building
1400 Townsend Dr
Houghton, Mi 49931
487-2155 Office
369-4509 cell