From bb0b5ed3ad0d03da43af708176557a5f97b97f25 Mon Sep 17 00:00:00 2001
From: Gamelin Alexis <alexis.gamelin@synchrotron-soleil.fr>
Date: Mon, 20 Feb 2023 17:17:24 +0100
Subject: [PATCH] [Fix] ExponentialDamper
---
mbtrack2/tracking/feedback.py | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/mbtrack2/tracking/feedback.py b/mbtrack2/tracking/feedback.py
index c16afbd..5e4e5f2 100644
--- a/mbtrack2/tracking/feedback.py
+++ b/mbtrack2/tracking/feedback.py
@@ -30,15 +30,12 @@ class ExponentialDamper(Element):
self.plane = plane
if self.plane == "x":
self.action = "xp"
- self.damp_idx = 0
self.mean_idx = 1
elif self.plane == "y":
self.action = "yp"
- self.damp_idx = 1
self.mean_idx = 3
elif self.plane == "s":
self.action = "delta"
- self.damp_idx = 2
self.mean_idx = 5
else:
raise ValueError(f"plane should be x, y or s, not {self.plane}")
@@ -55,7 +52,7 @@ class ExponentialDamper(Element):
bunch : Bunch or Beam object
"""
bunch[self.action] -= (2*self.ring.T0/
- self.damping_time[self.damp_idx]*
+ self.damping_time*
np.sin(self.phase_diff)*
bunch.mean[self.mean_idx])
--
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