How the accelerator mass spectrometer works - Ian Clark, University of Ottawa
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- เผยแพร่เมื่อ 29 ก.ย. 2014
- By Sabrina Daniel
What makes an accelerator mass spectrometer capable of analyzing a trace isotope like radiocarbon, which is present in the environment at one-million-millionth the concentration of regular carbon atoms? How is it able to distinguish between two atoms that have virtually identical mass? Ian Clark, professor of Earth sciences at the University of Ottawa explains how it works in this animated video.
This video is part of a feature story about the opening of the Advanced Research Complex (ARC) at the University of Ottawa. For more information, click the link.
www.innovation.ca/en/ResearchI... - วิทยาศาสตร์และเทคโนโลยี
Thank you for this useful video, really helps to understand the process with so much technical layers.
Beautifully explained 👍👍
GREAT VIDEO!!
Thank you, it was very helpful
thanks, I learned something from this.
Wow, it was amazing.
Nicely Explained.
I` m working on my specialist thesis. It`s about measurement of technetium-99 in environmental samples. I`ve read that ICP-MS and LSC are the most recommended methods for detection of 99Tc in environmental samples. What about AMS? Would you recommend to use this method?
Just wow!
does the AMS system measure other gases, and does it tell you anything else about composition? or is this only used for dating purposes? I'd like to see some actual output. Will is also do the potassium to argon analysis as well? Who makes this machine? What did it cost, and how much does it cost? It looks massive.
Hi Chris, here is a bit more information about the AMS. This particular lab is at the University of Ottawa. Our organization (Canada Foundation for Innovation) has contributed at least $9 million in infrastructure funding to get the lab up and running. I'm not sure what it costs to run on a regular basis, though I know they have at least one regular technician on site who helped build it and who maintains it. It is indeed massive, weighing in at 44 tonnes!
www.ams.uottawa.ca/
Homepage of the lab itself. It has info about who built the machine and what isotopes it can analyze.
www.innovation.ca/en/ResearchInAction/OutcomeStory/Nosmallfeat
An article about researcher Jack Cornett who studies tiny traces of rare atoms in the field of environmental health.
soundcloud.com/innovation-ca/tracing-contaminants-in-the-earth
Podcast from researcher Ian Clark (who narrated this video) where he explains how he uses the AMS; for what purpose.
Hope this helps answer some of your questions!
What does carbon 14 only decay after the animal dies?
What does this machine provide that can't be achieved with an ICP-MS instrument?
I believe ICP-MS can't distinguish carbon 14 from nitrogen 14. Carbon 14 is present at parts-per-trillion levels; there's too much nitrogen.
That's was something cool
Glad you liked it!
Why music
I can only remember from Half-Life whenever I hear "A.M.S".
But what is put in the AMS? Bone dust? Dirt? Rock?
someone plz answer WHAT we can date with AMS
Hi Jared, yes, all of those things can be used to carbon date. Here's a podcast that can answer some of your questions. soundcloud.com/innovation-ca/tracing-contaminants-in-the-earth
In clinical research, they can tag a research drug with carbon-14, and after administering it to a subject, they’ll draw the subject’s blood at various time points after dose to run it though an AMS to get an extremely precise count that they can use to build their drug concentration vs time curves as well as determine bioavailability.
The background is too loud please lower the music abit.
k conio dise