From bed6c72ddffc866b7cc9db10b70a887aaef2a034 Mon Sep 17 00:00:00 2001
From: Mohammad Eshraqi <mohammad.eshraqi@esss.se>
Date: Tue, 19 Feb 2019 13:54:39 +0100
Subject: [PATCH] added numpy to emit_geo
---
ess/SP_Relativity.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/ess/SP_Relativity.py b/ess/SP_Relativity.py
index beeafe3..5c87cbe 100644
--- a/ess/SP_Relativity.py
+++ b/ess/SP_Relativity.py
@@ -141,6 +141,7 @@ def emit_geo(u_up_array):
-------
geometrical emittance of the distribution/array in units of pi.mm.mrad
'''
+ import numpy as np
u_shift = u_up_array[:,0] # x
up_shift = u_up_array[:,1] # x'
u = u_shift - np.average(u_shift)
--
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