---
# System prepended metadata

title: 'PlasmaPy Proton Meeting | Monday 2021 March 01 at 09:00 PT / 12:00 ET'
tags: [' proton radiography', diagnostics, ' particle tracker', ' minutes']

---

---
tags: diagnostics, proton radiography, particle tracker, minutes
---

# PlasmaPy Proton Meeting | Monday 2021 March 01 at 09:00 PT / 12:00 ET

[![hackmd-github-sync-badge](https://hackmd.io/_K8DztcWS1inpn5IkxGKYA/badge)](https://hackmd.io/_K8DztcWS1inpn5IkxGKYA)


### Video Conference Information
* Instant messaging: [Matrix](https://element.im/app/#/room/#plasmapy:openastronomy.org) and [Gitter](https://gitter.im/PlasmaPy/Lobby)
* [GitHub Minutes Repository](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes)
    * [Proton Sub-directory](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes/proton_radiography)
* [PlasmaPy on GitHub](https://github.com/PlasmaPy/plasmapy) ([pull requests](https://github.com/PlasmaPy/plasmapy/pulls), [issues](https://github.com/PlasmaPy/plasmapy/issues))
* [PlasmaPy Enhancement Proposals on GitHub](https://github.com/PlasmaPy/PlasmaPy-PLEPs)
* [PlasmaPy Google Calendar](https://calendar.google.com/calendar?cid=bzVsb3ZkcW0zaWxsam00ZTlrMDd2cmw5bWdAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ)
* GitHub Project: [Line Integrated Diagnostics/Proton Radiography](https://github.com/PlasmaPy/PlasmaPy/projects/21)

## Agenda (please feel free to edit or add items)

1. Introductions
2. GitHub Project: [Line Integrated Diagnostics/Proton Radiography](https://github.com/PlasmaPy/PlasmaPy/projects/21)
3. ...
4. ...
5. Issues
    1. ...
    2. ...
6. Pull requests in progress 
    1. [PR 974](https://github.com/PlasmaPy/PlasmaPy/pull/974): Fitting Thomson Scattering Spectra
    2. [PR 979](https://github.com/PlasmaPy/PlasmaPy/pull/979): Added realativistic boris push
    3. [PR 1049](https://github.com/PlasmaPy/PlasmaPy/pull/1049): Proton radiography with mesh grids
    4. [PR 1050](https://github.com/PlasmaPy/PlasmaPy/pull/1050): Catch warnings in `test_proton_radiography`
7. Pull requests **MERGED**
    1. [PR 981](https://github.com/PlasmaPy/PlasmaPy/pull/981): Grids #3
    2. [PR 1027](https://github.com/PlasmaPy/PlasmaPy/pull/1027): Grids #4
    3. [PR 1035](https://github.com/PlasmaPy/PlasmaPy/pull/1035): PRad Bugfix

## Attendees

* Erik
* Peter

## Action Items

***Erik***
* Look into error estimate functionality for Thomson Spectra
* See where LaPD is at with integrating Thomson scattering
* Make a decision on if we should merge Thomson Spectra w/o (or before nailing) the error estimate functionality

## Minutes

* Grids 3...persistent interpolators
* Grids 4...review and minor fixes/refactors
* PR 1049 mesh grids
    * transfers the shadow of a wire mesh to the detector plane
    * current approach
        * mesh is place before the experimental volume
        * protons are considered free streaming to the mesh and those that impact the mesh are removed before the sim starts
        * A warning should be raised if the mesh is placed withing the front edge of the experimental volume, otherwise an exception should be raised
    * currently the mesh is added after the creation of the protons, but this will be refactored to be apart of the initialization before the creation of protons
    * done just needs review
    * hoping to get in the v0.6.0 release
* relativistic boris pusher will test against a relativistic ExB drift
* Fitting Thomson Spectra
    * works pretty well
    * model to use with LMFIT
    * functionality is currently slow (not parallelized)
        * lack of parallelization is due to pickling (of `Particle` class and functionality)
        * PR could be merged now and the the parallelization will be available one the pickling is fix, since the prallelization is built into the LMFIT functionality
    * 2nd part to functionality...error estimates & goodness of fit
        * Need to really review and come to some confidence with the error estimate calculation
        * method is currently discussed in the [PR's notebook](https://plasmapy--974.org.readthedocs.build/en/974/notebooks/thomson_fitting.html)
