[Crater-team] Fwd: Apollo 8 and 12 experiments

Harlan Spence spence at guero.sr.unh.edu
Tue Mar 19 11:39:11 EDT 2019


THanks, Joe - I concur.  An interesting bit of history, though!
________________________________
Harlan E. Spence
Director, Institute for the Study of Earth,
   Oceans, & Space and Prof. of Physics 
Morse Hall, Room 306 
University of New Hampshire
8 College Road
Durham, NH 03824-3525

Phone: 603-862-0322
Fax:   603-862-1915

http://www.eos.unh.edu/Faculty/Spence
________________________________



> On Mar 14, 2019, at 10:10 AM, Joseph E Mazur <joseph.e.mazur at aero.org> wrote:
> 
> Harlan, I don’t see a direct comparison because of the threshold LET in the plastic compared to the energy range of CRaTER.
> The Science paper states they are sensitive to Ne ionization above 7 MeV/n incident, but that means lower incident energy than CRaTER can detect for heavies.
> Our track experts might have another view.
>  
> Here's the relevant figure from the lexan reference in the Science paper:
>  
> <image001.png>
>  
>  
> Best regards,
> Joe
>  
> J. E. Mazur
> The Aerospace Corporation
> Principal Director, Space Science Applications Laboratory
>  
> Chantilly office: A101/N5228
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>  
> From: Crater-team <crater-team-bounces at lists.sr.unh.edu> on behalf of Harlan Spence <spence at guero.sr.unh.edu>
> Date: Thursday, March 14, 2019 at 9:20 AM
> To: "crater-team at lists.sr.unh.edu" <crater-team at lists.sr.unh.edu>
> Subject: [Crater-team] Fwd: Apollo 8 and 12 experiments
>  
> All, 
>  
>    Here is a link to the paper we discussed at yesterday’s CRaTER telecon.  Please let me know if you have any thoughts on if/how we might/should compare these Apollo era radiation measurements with ours.
>  
> Thanks,  Harlan
> ________________________________
> 
> Harlan E. Spence
> 
> Director, Institute for the Study of Earth,
> 
>    Oceans, & Space and Prof. of Physics 
> Morse Hall, Room 306 
> University of New Hampshire
> 
> 8 College Road
> 
> Durham, NH 03824-3525
> 
> 
> 
> Phone: 603-862-0322
> 
> Fax:   603-862-1915
> 
> 
> 
> http://www.eos.unh.edu/Faculty/Spence <http://www.eos.unh.edu/Faculty/Spence>
> ________________________________
> 
> 
> 
> 
> Begin forwarded message:
>  
> From: "Petro, Noah E. (GSFC-6980)" <noah.e.petro at nasa.gov <mailto:noah.e.petro at nasa.gov>>
> Subject: Apollo 8 and 12 experiments
> Date: March 12, 2019 at 9:43:51 PM EDT
> To: "spence at guero.sr.unh.edu <mailto:spence at guero.sr.unh.edu>" <spence at guero.sr.unh.edu <mailto:spence at guero.sr.unh.edu>>, "nschwadron at guero.sr.unh.edu <mailto:nschwadron at guero.sr.unh.edu>" <nschwadron at guero.sr.unh.edu <mailto:nschwadron at guero.sr.unh.edu>>
>  
> Harlan and Nathan,
>  
> How do the results from this interesting experiment compare to CRaTERs data?
>  
> https://www.jstor.org/stable/1730913?seq=1#page_scan_tab_contents <https://www.jstor.org/stable/1730913?seq=1#page_scan_tab_contents>
> 
> Shared via the Google app <https://itunes.apple.com/app/google/id284815942>
>  
> 
> ----- 
> Noah Petro
> NASA Goddard Space Flight Center
> Planetary Geodynamics Lab, Code 698
> Building 34, Room W294
> Greenbelt, MD 20771 <x-apple-data-detectors://3/0>
> Ph:301.614.6498 <tel:301.614.6498>
> http://go.usa.gov/39d9w <http://go.usa.gov/39d9w>
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