Simulation and Analysis TF

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Description

Topic: LUXE simulation and analysis TF
Meeting ID: 916 7025 7822
Password: 434044
Time: This is a recurring meeting Meet anytime

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Intro:

 

Daniel:

- went to 900 nm wavelength —> a bit smaller energy of the Comptons

- electrons emittance is the dominant contribution to the uncertainty

- 1 ps pulse duration? —> this is OK.

- need to know what is the optimal spot size 

- slide 16: transverse momentum doesn’t look too small and it will affect the reco of e+e- pairs? —> will need to see this with the pairs coming from the main IP.

- don’t we have Comptons which produce pairs in the ICS IP? —> no, xi is too small.

- Beate:

  - focusing to different sizes at the ICS IP can be done but the magnets have to be strong enough but ~5-20 um seems OK. —> need a talk from the machine person (focusing options…)

  - where do we actually do the focusing of the electron beam? —>  ~20 m upstream the LUXE setup.

- Sasha:

  - in the case of the target there’s also multiple scattering so there’s no clear correlation between the focusing and the number of pairs. (on the question where do focus the beam - the main IP or the ICS IP?)

  - Sasha has the function which generates the electrons with correlated position and momentum —> please share.

 

 

Tom:

- I’d wait with large scale submissions (more BXs etc) except for what’s needed for the CDR fixes

- 

 

Arka: 

- add the relative difference in angle before and after the window

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