High-Level Project Summary
The aim of this project is to measure ICE DEPOSITION RATE in the shade ON THE MOON, using time-domain NMR.The intention is to use a time-domain NMR spectrometer to measure nano-gram quantities of ice depositing on an exposed planar probe, in the shade on the moon.
Link to Project "Demo"
Link to Final Project
Detailed Project Description
A suitable time-domain NMR spectrometer such as the palm-top one we have developed can measure nano-gram quantities of brittle ice.
We aim to use an exposed planar NMR probe to measure ice deposition rates, in the shade on the moon.
This can help provide information on accessible water on the moon.
A suitable time-domain NMR Spectrometer can measure the quantity of brittle ice in/on the NMR Probe. It can also determine the molecular mobility of the ice, which depends on both the temperature and the properties of the ice.
Here we measure the Free-Induction Decay for brittle ice at different temperatures, and then calculate the T2 decay time, which gives information on the rate of movement of the molecules.
These can be measured to much lower temperatures than are shown in these graphs.
A suitable palm-sized NMR Spectrometer that we have designed and constructed is shown (1 kG).
An example compact permanent magnet is also shown (< 1kG).
The NMR Spectrometer would probably need to be protected from moon temperatures
- the thin-walled stainless steel downlead will assist with this.
Power usage is low, with NMR receiver and transmitter both settable to standby, and are both not active most of the time.
However a planar probe with an open geometry NMR Magnet is more suitable for this application :
Here we see a simulation of an example open NMR Magnet, suitable for a planar probe, created from 2 magnets on an iron plate.
It still has to be determined if the magnets need to be protected from moon temperatures.
Field plot simulation using FEMM 2D simulation program
I have been designing, building and using compact time-domain NMR spectrometers since 1972.
The latest Mk3 ones use digital RF techniques in a Field-Programmable Gate-Array.
I study the properties of ice, water and other liquids in nano-pores and at interfaces using time-domain NMR and neutron scattering.
I then apply this to nano-pore-metrology using NMR and neutron scattering including SANS.
I have my own small company (SME) Lab-Tools Ltd. (nano-science), with an NMR nano-science research laboratory.
I write my own programs for this work, mostly now using the high-level array manipulating program Apl (MicroApl AplX)
https://microapl.com/apl/index.html
My papers are mostly written using Latex.
Space Agency Data
This highly interesting paper is what has prompted me to create this project :
Implications of surface roughness in models of water desorption on the Moon
Björn J R Davidsson, Sona Hosseini
Monthly Notices of the Royal Astronomical Society, Volume 506, Issue 3, September 2021, Pages 3421–3429, https://doi.org/10.1093/mnras/stab1360
Hackathon Journey
Works well, but it needs to be clearer that one has to tick the box to save as well as submit, and that one can then do both repeatedly.
I lost my nearly complete first version, by using the back button, because that was not clear to me
References
I have been designing, building and using compact time-domain NMR spectrometers since 1972.
I study the properties of ice, water and other liquids in nano-pores and at interfaces using time-domain NMR and neutron scattering.
I then apply this to nano-metrology using NMR and neutron scattering including SANS.
I have published over 50 papers discussing this work :
Dr. J. Beau W. Webber.
https://www.linkedin.com/in/beau-webber-43a43426/
+44 (0) 7805 437 241
ORCID : 0000-0002-8967-4671
https://scholar.google.com/citations?hl=en&user=2Vxx03MAAAAJ
http://www.lab-tools.com/publications/Webber_JBW.htm
My most recent paper is very relevant to this project, discusses the time-domain NMR of ice and explains other NMR background :
A review of the use of simple time-domain NMR/MRI for material-science.
Webber, J.B.W.
SN Appl. Sci. 3, 809 (2021). DOI: 10.1007/s42452-021-04791-2
Tags
#moon #ice #iceonthemoon #nmrspectrometer #timedomainnmr #moonwater
Global Judging
This project has been submitted for consideration during the Judging process.