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====== Special Nuclear Science Seminar Speaker Schedule Sign Up  ======

[[public:Current Schedule]]

**Speaker = [[https://www.linkedin.com/in/aegehring/|Dr. Mandie Gehring]]** of [[https://www.lanl.gov/|Los Alamos National Lab]]

Host = Jaideep Taggart Singh [[singhj@frib.msu.edu]]

When = **<color #ed1c24>2025-03-27 Thursday 15:30 (PA colloquium time slot)</color>**

Where = **<color #ed1c24>BPS 1415</color>**

Please feel free to sign up below, but note that some slots may need to be re-assigned to accommodate those with a specific need to meet the speaker. If this happens, the Admin or Speaker Host will reach out to you via email. Dr. Gehring is visiting for two days and their schedule is below:

Wednesday March 26
<sortable>
^ Wed Start Time ^ Wed End Time ^ Name ^ Building ^ Room ^
| 09:00 | 09:30 |  |  |  | 
| 09:30 | 10:00 |  | |  | 
| 10:00 | 10:30 | Zach Constan | FRIB | lobby |
| 10:30 | 11:00 | Zach Constan | FRIB | lobby | 
| 11:00 | 11:30 |  |  |  | 
| 11:30 | 12:00 |  |  |  | 
| 12:00 | 13:00 |  |  |  | 
| 13:00 | 13:30 |  |  |  | 
| 13:30 | 14:00 | Eric Flynn | FRIB | 2057 |
| 14:00 | 14:30 |  |  |  | 
| 14:30 | 15:00 |  |  |  | 
</sortable>

Thursday March 27
<sortable>
^ Thu Start Time ^ Thu End Time ^ Name ^ Building ^ Room ^
| 08:15 | 09:30 | Kirsten Tollefson and Mehr Un Nisa | Breakfast | Off-Campus | 
| 09:30 | 10:00 | Katharina Domnanich | FRIB | 2012 | 
| 10:00 | 10:30 | Agnieszka Sorensen | FRIB  | 2000 |
| 10:30 | 11:00 | walk to BPS 1425 and speaker setup | |  | 
| 11:00 | 12:00 | [[https://events.natsci.msu.edu/#event-details/0636102e-f950-4dfc-9e4f-e97cc869fbf7|Beyond the Ph.D.: NatSci Graduate Student Alumni Share Their Career Journeys w/ Dr. Mandie Gehring]] | BPS | 1425 | 
| 12:00 | 13:00 | Lunch with grad students (contact Dr. Laurisa Ankley at [[ankleyla@msu.edu]] to reserve your spot.)  | TBD | TBD | 
| 13:00 | 13:30 | Dr. Amy Ralston | TBD | TBD | 
| 13:30 | 14:00 | Dr. Amy Ralston | TBD | TBD |
| 14:00 | 14:30 | Georg Bollen | FRIB | 2122 | 
| 14:30 | 15:00 | Sean Liddick | FRIB | 1006 | 
| 15:00 | 15:30 | Speaker Prep time and Coffee/Snacks | BPS | 1400 | 
| 15:30 | 16:30 | PA Colloquium | BPS | 1415 | 
| 16:30 | 17:00 | Brad Sherrill | FRIB | 3104 | 
</sortable>

===== Context =====

Title = Measuring Intense X-ray Spectra and an Overview of Space Research at Los Alamos National Laboratory

Abstract
<blockquote>
Los Alamos National Laboratory is famous for designing the atomic bombs used at the end of World War
II in 1945. Post-war, many further advancements were made in the development of nuclear weapons,
and treaty verification also became an important pillar in the lab’s mission. In this talk, I’ll discuss the
evolution of LANL’s work through the decades on space-based nuclear explosion detection.
In addition, x-ray radiography is employed at LANL for both dynamic and static imaging. Knowledge of
the x-ray energy spectrum produced by both flash and continuous sources aids in reconstructing the
density of the probed objects and in assessing machine performance. Compton spectrometers are one
option for conducting spectral measurements. In this technique, x-rays impinge on a converter foil from
which Compton electrons are ejected. The electrons enter the magnetic field region of the spectrometer,
and the electron momentum is proportional to position on the focal plane. From the electron signal, the
x-ray energy spectrum can be determined. Several continuous and flash x-ray sources have been
measured, and a sample of these results will be presented.
</blockquote>

Relevant background with commentary from Speaker:
  * PhD MSU 2013 [[https://doi.org/doi:10.25335/mbd4-g769|Development of the "ion surfing" method for thermal ion transport in buffer gas]]
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