Documenting TRestAxionField

scripts/xlsBikovskiyToBin.py

@@ -22,13 +22,13 @@
 
 print("Starting to read")
 # loading the data into a matrix (xyzBdata)
-file = r"../../../data/magneticField/Bykovskiy_201906.xls"
+file = r"../data/magneticField/Bykovskiy_202004.xls"
 df = pd.read_excel(file)
 
 print(df[1:5])
 
 print("Translating to matrix")
-xyzBdata = df.as_matrix(columns=df.columns[0:])
+xyzBdata = df[df.columns[0:]].values
 
 print(xyzBdata[0][0:6])
 

scripts/xlsMentinkToBin.py

@@ -0,0 +1,153 @@
+#!/usr/bin/python
+
+# This basic script serves to create a plain binary file from the XLS files provided by Bykovsky
+# for the Baby-IAXO magnet. We will only upload the resulting bin file, if the original XLS file
+# would be required at some point, do not hesitate to contact me at javier.galan@unizar.es.
+#
+# I upload this script in case it is necessary to convert future field maps. Some revision will be
+# needed in order to adapt to other input/output schemes.
+#
+
+import sys
+import struct
+from pandas import DataFrame, read_csv
+import matplotlib.pyplot as plt
+import pandas as pd
+
+# Field map is provided only for the top magnetic bore. We will recenter the field map.
+# Since this is a condition for TRestAxionMagneticField.
+xCenter = 0
+yCenter = 0.8
+zCenter = 0
+
+print("Starting to read")
+# loading the data into a matrix (xyzBdata)
+file = r"../data/magneticField/Mentink_202401.txt"
+df = pd.read_excel(file)
+
+print(df[1:5])
+
+print("Translating to matrix")
+# xyzBdata = df.values(columns=df.columns[0:])
+xyzBdata = df[df.columns[0:]].values
+
+print(xyzBdata[0][0:6])
+
+print(len(xyzBdata))
+
+# Printing out some info about data
+xMax = -100000
+xMin = 100000
+yMax = -100000
+yMin = 100000
+zMax = -100000
+zMin = 100000
+
+xBMax = -100000
+xBMin = 100000
+yBMax = -100000
+yBMin = 100000
+zBMax = -100000
+zBMin = 100000
+
+f = open("output.txt", "wt")
+
+for x in xyzBdata:
+    f.write(
+        str(x[0])
+        + "\t"
+        + str(x[1])
+        + "\t"
+        + str(x[2])
+        + "\t"
+        + str(x[3])
+        + "\t"
+        + str(x[4])
+        + "\t"
+        + str(x[5])
+        + "\n"
+    )
+    if xMax < x[0]:
+        xMax = x[0]
+    if yMax < x[1]:
+        yMax = x[1]
+    if zMax < x[2]:
+        zMax = x[2]
+
+    if xMin > x[0]:
+        xMin = x[0]
+    if yMin > x[1]:
+        yMin = x[1]
+    if zMin > x[2]:
+        zMin = x[2]
+
+    if xBMax < x[3]:
+        xBMax = x[3]
+    if yBMax < x[4]:
+        yBMax = x[4]
+    if zBMax < x[5]:
+        zBMax = x[5]
+
+    if xBMin > x[3]:
+        xBMin = x[3]
+    if yBMin > x[4]:
+        yBMin = x[4]
+    if zBMin > x[5]:
+        zBMin = x[5]
+
+f.close()
+
+print("X max : " + str(xMax))
+print("Y max : " + str(yMax))
+print("Z max : " + str(zMax) + "\n")
+
+print("X min : " + str(xMin))
+print("Y min : " + str(yMin))
+print("Z min : " + str(zMin) + "\n")
+
+print("BX max : " + str(xBMax))
+print("BY max : " + str(yBMax))
+print("BZ max : " + str(zBMax) + "\n")
+
+print("BX min : " + str(xBMin))
+print("BY min : " + str(yBMin))
+print("BZ min : " + str(zBMin) + "\n")
+
+# Creating the binary file
+fbin = open("output.bin", "wb")
+count = 0
+for x in xyzBdata:
+    # We recenter the volume and redefine axis (x becomes z, y becomes x and z becomes y)
+    # XLS file distances are expressed in m. We translate to mm.
+    y = [
+        1000 * (x[0] - xCenter),
+        1000 * (x[1] - yCenter),
+        1000 * (x[2] - zCenter),
+        x[3],
+        x[4],
+        x[5],
+    ]
+
+    # Baby-IAXO is symmetric respect to z (direction along axis) and x (direction parallel to the ground).
+    # I.e. x and y in the previous axis definition.
+    # The y-axis symmetry (in the new axis definition) affects the second bore that is not described in this map.
+    # We apply the corresponding symmetries to define the full map of one magnetic bore in the output binary file.
+
+    count = count + 1
+    fbin.write(struct.pack("<%df" % len(y), *y))
+    if count < 6:
+        print(len(y))
+        print(x[0:6])
+        print(y[0:6])
+    # The original file was only missing the x-axis, when we change the sign of x-axis we must change the sign of Bx.
+    if y[0] < 0:
+        y[0] = -y[0]
+        y[3] = -y[3]
+        count = count + 1
+        fbin.write(struct.pack("<%df" % len(y), *y))
+        if count < 6:
+            print(len(y))
+            print(x[0:6])
+            print(y[0:6])
+fbin.close()
+print("Lines writen : " + str(count))

src/TRestAxionBufferGas.cxx

@@ -51,6 +51,7 @@
 /// gas->SetGasMixture( "He+Xe", "2.6e-6g/dm^3+5.6mg/m^3" );
 /// \endcode
 ///
+///
 /// The corresponding RML section for initialization through a configuration
 /// file would be as follows.
 ///
@@ -61,6 +62,15 @@
 ///	</TRestAxionBufferGas>
 /// \endcode
 ///
+/// Example 3:
+///
+/// We may also use a definition found inside the official REST-for-Physics
+/// data directory.
+///
+/// \code
+/// TRestAxionBufferGas *gas = new TRestAxionBufferGas("bufferGases.rml", "helium");
+/// \endcode
+///
 ///--------------------------------------------------------------------------
 ///
 /// RESTsoft - Software for Rare Event Searches with TPCs