Cooling demonstrator lattice
----------------------------

This repo contains the lattice files for the cooling demonstrator. Contents:
* chicane: contains the transport line from the target through to the cooling
           channel start
* cooling: cooling lattice

Release notes
-------------

2025-11-24-release:
Fixed some documentation. Release for 2025 parameters report.

2025-08-27-prerelease:
Added files for the baseline target and transfer line (pion decay channel and chicane only, beam preparation system and matching section to follow) designs.

2025-08-01-prerelease:
Preliminary study on longitudinal parameters. I tried updating the wedge parameters, RF reference phase and the
dipole separation.

2025-04-11-prerelease:
Update for the 1.0 metre distance between magnet assemblies, following design work by magnet experts. So far 
only solenoid optics have been studied; longitudinal parameters have not been updated.

2024-05-24-release:
Minor changes to the schematic & parameters tables. This release is in support of the D8.1 of the MuCol project

2024-05-23-prerelease:
optimised the cooling cell lattice, including absorber thickness, window thickness, RF iris radius, RF parameters
added documentation
note that bdsim lattice is at an early stage and not consistent with the g4bl lattice - please use g4bl for now
this should be considered the baseline to take forwards for hardware design
https://indico.cern.ch/event/1418927/#9-demonstrator

2024-04-16-prerelease: just looking at solenoids; scaling the lattice to 0.8 m
cell length to better fit the RF cavities. See discussion here:
https://indico.cern.ch/event/1408162/contributions/5918375/attachments/2845045/4974235/2024-04-25_rogers-demonstrator-lattice.pdf

2024-03-01-prerelease: just looking at solenoids; adapting the NuFact lattice to
use a slightly more realistic solenoid geometry. See discussion here:
https://indico.cern.ch/event/1397981/contributions/5875820/attachments/2828539/4941918/2024-03-28_rogers-demonstrator-lattice.pdf

2022-11-01-release: this is the lattice presented at NuFact. It is published at
http://dx.doi.org/10.3390/psf2023008037

Release procedure
-----------------
To make a release:
* Go to github.com
* Click on the branch (typically drop down menu called <master>)
* Type in the name of the release "YYYY-MM-DD-prerelease" and click "Create branch YYYY-MM-DD-prerelease from master"
* At CLI do 'git checkout YYYY-MM-DD-prerelease'
** You should now be in branch YYYY-MM-DD-prerelease
** Update the README file and make any changes
** Commit and push
* do 'git checkout master'
* Bring the changes back into the master with 'git merge YYYY-MM-DD-prerelease'
* Commit and push