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Dr. Steph Walker

@stephwalker.bsky.social

367 followers 226 following 32 posts

Isotope Geochemist. Voracious reader. TIMS tinkerer and garnet aficionado. She/her. 🚲

Posts Replies Media

Dr. Steph Walker @stephwalker.bsky.social · 19/05/2025

Maybe I should start running hafnium so I feel better about my post-TIMS world 😂

Graph of neodymium isotope values from my new MC-ICPMS. Pretty scattered values compared to very stable TIMS analyses.

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Dr. Steph Walker @stephwalker.bsky.social · 21/03/2025

Faraday Friday!!

A faraday “bucket” collector being held in a blue gloved hand with tin foil in the background.

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Dr. Steph Walker @stephwalker.bsky.social · 14/03/2025

First tantalising glimpse of the plasma earlier this week. Hopefully we’ll get an ion beam next week, but very pleased with the progress so far. So excited for the cool research we can do with this.

Lit plasma on a Sapphire mass spectrometer glimpsed through the torch box window.

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Dr. Steph Walker @stephwalker.bsky.social · 10/03/2025

Happy new mass spec day to all who celebrate 🥹

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Dr. Steph Walker @stephwalker.bsky.social · 14/11/2024

Crossing into the Thermo dark side this week at Cardiff Uni! 🥲

Two computer screens showing a program that runs a Thermal Ionisation Mass Spectrometer

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Dr. Steph Walker @stephwalker.bsky.social · 28/02/2024

Running one column today because I love pain apparently.

A single column in a clear rack. The lab space is white and there are reagent bottles around.

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Dr. Steph Walker @stephwalker.bsky.social · 07/10/2023

‘New’ TIMS is getting its one-year check-up from Isotopx. Been having some issues with the analyser vacuum so she’s all tucked in and having a toasty nap 😴

A thermal ionisation mass spectrometer covered in reflective covers as it ‘bakes’ to improve the vacuum.

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Dr. Steph Walker @stephwalker.bsky.social · 29/09/2023

TIL the TIMS has a maxes out at 100V 🥲

Outputs from a TIMS showing 100V on the High2 collector

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