From a36ff25c218fe273608cad21341ceb6e2ad60268 Mon Sep 17 00:00:00 2001 From: Alex Jentsch <ajentsch@bnl.gov> Date: Wed, 6 Oct 2021 13:11:46 +0000 Subject: [PATCH] Updated the 41 and 100 GeV magnet lattice numbers. Will need to be reviewed again with Scott when he is available. --- ip6/far_forward_fields_100.xml | 21 ++++++++------------- ip6/far_forward_fields_41.xml | 21 ++++++++------------- 2 files changed, 16 insertions(+), 26 deletions(-) diff --git a/ip6/far_forward_fields_100.xml b/ip6/far_forward_fields_100.xml index 996645d..1ce9dab 100644 --- a/ip6/far_forward_fields_100.xml +++ b/ip6/far_forward_fields_100.xml @@ -1,19 +1,14 @@ <define> <comment> - All magnet values are input by hand and represent the implementation in EICRoot used for the Yellow Report. - - The original values were calculated for 275 GeV ions. For now, we can get a lower energy tune - by scaling down all magnets (except for B0pf) by new_beam_energy/275. - - This is the 100GeV file, so we applied 100/275. + These are the values from Scott's tables for the 50cm shifted hadron FF 100 GeV proton lattice. Notice they mostly do not scale with beam energy in the staightforward way from the previous lattice. </comment> <constant name="B0PF_GradientMax" value="-8.12238283*tesla/m"/> <constant name="B0APF_GradientMax" value="0.0*tesla/m"/> - <constant name="Q1APF_GradientMax" value="-26.40290909*tesla/m"/> - <constant name="Q1BPF_GradientMax" value="-22.99827419*tesla/m"/> - <constant name="Q2PF_GradientMax" value="13.4120059*tesla/m"/> + <constant name="Q1APF_GradientMax" value="-44.08979*tesla/m"/> + <constant name="Q1BPF_GradientMax" value="0.0*tesla/m"/> <!-- need to check with Scott on this one --> + <constant name="Q2PF_GradientMax" value="12.7764668*tesla/m"/> <constant name="B1PF_GradientMax" value="0.0*tesla/m"/> <constant name="B1APF_GradientMax" value="0.0*tesla/m"/> <constant name="B2PF_GradientMax" value="0.0*tesla/m"/> @@ -21,13 +16,13 @@ <constant name="Q1EF_GradientMax" value="2.127596364*tesla/m"/> <constant name="B0PF_Bmax" value="1.1840539*tesla"/> - <constant name="B0APF_Bmax" value="1.247798873*tesla"/> + <constant name="B0APF_Bmax" value="1.1588921*tesla"/> <!-- need to check with Scott on this one --> <constant name="Q1APF_Bmax" value="0.0*tesla"/> <constant name="Q1BPF_Bmax" value="0.0*tesla"/> <constant name="Q2PF_Bmax" value="0.0*tesla"/> - <constant name="B1PF_Bmax" value="1.253814182*tesla"/> - <constant name="B1APF_Bmax" value="0.9818181818*tesla"/> - <constant name="B2PF_Bmax" value="-1.741459709*tesla"/> + <constant name="B1PF_Bmax" value="1.29077532*tesla"/> + <constant name="B1APF_Bmax" value="0.98178068*tesla"/> + <constant name="B2PF_Bmax" value="-1.74139319*tesla"/> <constant name="Q0EF_BMax" value="0.0*tesla"/> <constant name="Q1EF_BMax" value="0.0*tesla"/> diff --git a/ip6/far_forward_fields_41.xml b/ip6/far_forward_fields_41.xml index 8dd1f9a..aa5a7f6 100644 --- a/ip6/far_forward_fields_41.xml +++ b/ip6/far_forward_fields_41.xml @@ -1,19 +1,14 @@ <define> <comment> - All magnet values are input by hand and represent the implementation in EICRoot used for the Yellow Report. - - The original values were calculated for 275 GeV ions. For now, we can get a lower energy tune - by scaling down all magnets (except for B0pf) by new_beam_energy/275. - - This is the 41GeV file, so we applied 41/275. + These are the values from Scott's tables for the 50cm shifted hadron FF 41 GeV proton lattice. Notice they mostly do not scale with beam energy in the staightforward way from the previous lattice. </comment> <constant name="B0PF_GradientMax" value="-8.12238283*tesla/m"/> <constant name="B0APF_GradientMax" value="0.0*tesla/m"/> - <constant name="Q1APF_GradientMax" value="-10.82519273*tesla/m"/> - <constant name="Q1BPF_GradientMax" value="-9.429292418*tesla/m"/> - <constant name="Q2PF_GradientMax" value="5.49892242*tesla/m"/> + <constant name="Q1APF_GradientMax" value="-15.381768*tesla/m"/> + <constant name="Q1BPF_GradientMax" value="0.0*tesla/m"/> <!-- need to check with Scott on this one --> + <constant name="Q2PF_GradientMax" value="5.40545729*tesla/m"/> <constant name="B1PF_GradientMax" value="0.0*tesla/m"/> <constant name="B1APF_GradientMax" value="0.0*tesla/m"/> <constant name="B2PF_GradientMax" value="0.0*tesla/m"/> @@ -21,13 +16,13 @@ <constant name="Q1EF_GradientMax" value="0.8723145091*tesla/m"/> <constant name="B0PF_Bmax" value="1.1840539*tesla"/> - <constant name="B0APF_Bmax" value="0.5115975378*tesla"/> + <constant name="B0APF_Bmax" value="-2.559005681*tesla"/> <!-- need to check with Scott on this one --> <constant name="Q1APF_Bmax" value="0.0*tesla"/> <constant name="Q1BPF_Bmax" value="0.0*tesla"/> <constant name="Q2PF_Bmax" value="0.0*tesla"/> - <constant name="B1PF_Bmax" value="0.5140638145*tesla"/> - <constant name="B1APF_Bmax" value="0.4025454545*tesla"/> - <constant name="B2PF_Bmax" value="-0.7139984807*tesla"/> + <constant name="B1PF_Bmax" value="0.5920021*tesla"/> + <constant name="B1APF_Bmax" value="0.40244238*tesla"/> + <constant name="B2PF_Bmax" value="-0.71381565*tesla"/> <constant name="Q0EF_BMax" value="0.0*tesla"/> <constant name="Q1EF_BMax" value="0.0*tesla"/> -- GitLab