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

Tue Mar 19 12:00:09 EDT 2019

Harlan,

I agree with Joe.  After thinking about possible ways to do a comparison, I have come up empty.

Best,

Larry

From: Crater-team [mailto:crater-team-bounces at lists.sr.unh.edu] On Behalf Of Harlan Spence
Sent: Tuesday, March 19, 2019 11:39 AM
To: Joseph E Mazur
Cc: crater-team at lists.sr.unh.edu
Subject: Re: [Crater-team] Fwd: Apollo 8 and 12 experiments

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<mailto: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
El Segundo office: A6/2403A

Mailing address:
CH1-515
14301 SullyField Circle, Unit C
Chantilly, VA 20151-1622
Primary phone: 571-304-7587
Mobile: 571-643-4991
Email: joseph.e.mazur at aero.org<mailto:joseph.e.mazur at aero.org>

From: Crater-team <crater-team-bounces at lists.sr.unh.edu<mailto:crater-team-bounces at lists.sr.unh.edu>> on behalf of Harlan Spence <spence at guero.sr.unh.edu<mailto:spence at guero.sr.unh.edu>>
Date: Thursday, March 14, 2019 at 9:20 AM
To: "crater-team at lists.sr.unh.edu<mailto:crater-team at lists.sr.unh.edu>" <crater-team at lists.sr.unh.edu<mailto: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
________________________________

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

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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.sr.unh.edu/pipermail/crater-team/attachments/20190319/8d3d5cf6/attachment-0001.html>