Difference between revisions of "Mar 6, 2020 Meeting Minutes"
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(Created page with "==Emails/attachments sent during the previous week== *Email chain subject name: First gas distribution simulation **Date: Feb 25, 2020 **Description: Marcy sent vacuum simulat...") |
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==Emails/attachments sent during the previous week== | ==Emails/attachments sent during the previous week== | ||
| − | *Email chain subject name: | + | *Email chain subject name: Ion energy consumption from Bethe's original article (1930) |
| − | **Date: | + | **Date: Mar 2-4, 2020 |
| − | **Description: | + | **Description: Josh sent a translated/transcribed version of "Theory of the passage of fast corpuscular rays through matter," which has a detailed description of ion energies after ionization |
==Post-meeting notes== | ==Post-meeting notes== | ||
| − | + | * Josh presented ion energy analysis - GPT simulations of single bunch with fixed parameters. Simulations were made with the ionization as is, with the energy of the ion unchanged, secondary electrons on/off, and with space charge on/off. | |
| − | * Josh presented | + | * Need to make bunch with long length for DC bwaem |
| − | + | * Need to make higher bunch charge to see the effects of space charge - perhaps a single bunch going through stationary ions | |
| − | * | + | * Removing NEGs makes a big difference in the electric field profile of the CEBAF photogun |
| − | * Need to | + | * Need to check e-field for 0.1<=z<=0.25m - Cristhian showed that there is a bump in the e-field on axis in that range. |
| − | * Need to | + | * Perhaps use Maxwellian distribution of ions with 3-4eV. Cristhian will share his C++ routine for creating this Maxwellian distribution. |
| − | * | ||
[[Ionization Effects Meetings | Return to Ionization Effects Meetings]] | [[Ionization Effects Meetings | Return to Ionization Effects Meetings]] | ||
[[Weekly phone call - Mar 6, 2020 | Go to Meeting Page]] | [[Weekly phone call - Mar 6, 2020 | Go to Meeting Page]] | ||
Latest revision as of 15:21, 24 March 2020
Emails/attachments sent during the previous week
- Email chain subject name: Ion energy consumption from Bethe's original article (1930)
- Date: Mar 2-4, 2020
- Description: Josh sent a translated/transcribed version of "Theory of the passage of fast corpuscular rays through matter," which has a detailed description of ion energies after ionization
Post-meeting notes
- Josh presented ion energy analysis - GPT simulations of single bunch with fixed parameters. Simulations were made with the ionization as is, with the energy of the ion unchanged, secondary electrons on/off, and with space charge on/off.
- Need to make bunch with long length for DC bwaem
- Need to make higher bunch charge to see the effects of space charge - perhaps a single bunch going through stationary ions
- Removing NEGs makes a big difference in the electric field profile of the CEBAF photogun
- Need to check e-field for 0.1<=z<=0.25m - Cristhian showed that there is a bump in the e-field on axis in that range.
- Perhaps use Maxwellian distribution of ions with 3-4eV. Cristhian will share his C++ routine for creating this Maxwellian distribution.