diff --git a/Framework/Algorithms/src/CalMuonDetectorPhases.cpp b/Framework/Algorithms/src/CalMuonDetectorPhases.cpp
index 01de6b57df8999ecfceb226ffa2ed4ca3cc16ef0..68de5827141ecdae591b4554693bba4ba0672233 100644
--- a/Framework/Algorithms/src/CalMuonDetectorPhases.cpp
+++ b/Framework/Algorithms/src/CalMuonDetectorPhases.cpp
@@ -17,9 +17,10 @@
 
 namespace {
 bool isZero(double value) {
-  bool result = value == 0;
-  return result;
+  return value == 0;
 }
+int phaseRow = 2;
+double asymError = 999.0;
 }
 
 namespace Mantid {
@@ -179,10 +180,10 @@ void CalMuonDetectorPhases::fitWorkspace(const API::MatrixWorkspace_sptr &ws,
       tab->addColumn("double", "Error");
       for (int j = 0; j < 4; j++) {
         API::TableRow row = tab->appendRow();
-        if (j == 2) {
+        if (j == phaseRow) {
           row << "dummy" << 0.0 << 0.0;
         } else {
-          row << "dummy" << 999. << 0.0;
+          row << "dummy" << asymError << 0.0;
         }
       }
 
diff --git a/Framework/Algorithms/src/PhaseQuadMuon.cpp b/Framework/Algorithms/src/PhaseQuadMuon.cpp
index 2859396369a5d4e7ac514cba145403a0561e04e6..3e56de0ed9407ec3316b0ebbb2c75d85442572f9 100644
--- a/Framework/Algorithms/src/PhaseQuadMuon.cpp
+++ b/Framework/Algorithms/src/PhaseQuadMuon.cpp
@@ -29,8 +29,7 @@ int findName(const T1 &patterns, const T2 &names) {
   return -1;
 }
 bool isZero(double value) {
-  bool result = value == 0;
-  return result;
+  return value == 0;
 }
 }
 
@@ -243,6 +242,7 @@ PhaseQuadMuon::squash(const API::MatrixWorkspace_sptr &ws,
     throw std::invalid_argument("Invalid detector asymmetries");
   }
   std::vector<bool> emptySpectrum;
+  emptySpectrum.reserve(nspec);
   std::vector<double> aj, bj;
   {
     // Calculate coefficients aj, bj
diff --git a/Framework/Algorithms/src/RemoveExpDecay.cpp b/Framework/Algorithms/src/RemoveExpDecay.cpp
index 10944bc87da9d848f6f397e816a4f962cdbd0104..4e50341f0f6eacffab1eaf479e91b549a6628479 100644
--- a/Framework/Algorithms/src/RemoveExpDecay.cpp
+++ b/Framework/Algorithms/src/RemoveExpDecay.cpp
@@ -21,8 +21,7 @@ constexpr double MUON_LIFETIME_MICROSECONDS{
     Mantid::PhysicalConstants::MuonLifetime * MICROSECONDS_PER_SECOND};
 
 bool isZero(double value) {
-  bool result = value == 0;
-  return result;
+  return value == 0;
 }
 }
 
@@ -110,7 +109,7 @@ void MuonRemoveExpDecay::exec() {
                                      inputWS->y(specNum).end(), isZero);
     if (emptySpectrum) {
       // if the y values are all zero do not change them
-      m_log.warning("waaa " + std::to_string(specNum));
+      m_log.warning("Dead detector found at spectrum number " + std::to_string(specNum));
       outputWS->setHistogram(specNum, inputWS->histogram(specNum));
     } else {
       // Remove decay from Y and E
diff --git a/Framework/Algorithms/test/PhaseQuadMuonTest.h b/Framework/Algorithms/test/PhaseQuadMuonTest.h
index 5948a2dc854fc7f48800a8735038deee84166c95..84ba2ae004976c35b04e49aa758f4b91349da24c 100644
--- a/Framework/Algorithms/test/PhaseQuadMuonTest.h
+++ b/Framework/Algorithms/test/PhaseQuadMuonTest.h
@@ -20,7 +20,7 @@ namespace {
 const int dead1 = 4;
 const int dead2 = 12;
 
-void populatePhaseTable2(ITableWorkspace_sptr phaseTable,
+void populatePhaseTableWithDeadDetectors(ITableWorkspace_sptr phaseTable,
                          const MatrixWorkspace_sptr ws) {
   phaseTable->addColumn("int", "DetectprID");
   phaseTable->addColumn("double", "Asymmetry");
@@ -96,7 +96,7 @@ IAlgorithm_sptr setupAlgDead(MatrixWorkspace_sptr m_loadedData) {
   // Create and populate a detector table
   boost::shared_ptr<ITableWorkspace> phaseTable(
       new Mantid::DataObjects::TableWorkspace);
-  populatePhaseTable2(phaseTable, m_loadedData);
+  populatePhaseTableWithDeadDetectors(phaseTable, m_loadedData);
 
   return setupAlg(m_loadedData, true, phaseTable);
 }
@@ -106,7 +106,7 @@ MatrixWorkspace_sptr setupWS(MatrixWorkspace_sptr m_loadedData) {
       new Mantid::DataObjects::TableWorkspace);
   MatrixWorkspace_sptr ws = m_loadedData->clone();
   // create toy data set
-  populatePhaseTable2(phaseTable, ws);
+  populatePhaseTableWithDeadDetectors(phaseTable, ws);
   auto xData = ws->points(0);
   for (size_t spec = 0; spec < ws->getNumberHistograms(); spec++) {
     for (size_t j = 0; j < xData.size(); j++) {
diff --git a/Framework/PythonInterface/plugins/algorithms/MuonMaxent.py b/Framework/PythonInterface/plugins/algorithms/MuonMaxent.py
index 9d93f21ed4fc73d3295b4e05f0178c30a1308cca..134fac4df1a21436b5d3ca402aa9ad927ca170a8 100644
--- a/Framework/PythonInterface/plugins/algorithms/MuonMaxent.py
+++ b/Framework/PythonInterface/plugins/algorithms/MuonMaxent.py
@@ -229,11 +229,12 @@ class MuonMaxent(PythonAlgorithm):
             IDLabel = None
             asymmLabel = None
             for name in names:
-                if name.lower() == "phi" or name.lower() == "phase":
+                name_lower = name.lower()
+                if name_lower in {"phi", "phase"}:
                     phaseLabel = name
-                if name.lower() == "detid" or name.lower() == "spectrum number":
+                if name_lower in {"detid", "spectrum number"}:
                     IDLabel = name
-                if name.lower() == "asymmetry" or name.lower() == "asymm" or name.lower() == "asasym":
+                if name_lower in{"asymmetry", "asymm",  "asym"}:
                     asymmLabel = name
             if phaseLabel is None:
                 raise ValueError(
@@ -255,7 +256,6 @@ class MuonMaxent(PythonAlgorithm):
                         phaseLabel]
             else:  # muat be some dead Detectors
                 offset = 0
-                print(POINTS_ngroups, "nnn")
                 for row in pt:
                     if row[asymmLabel] == 999:
                         offset += 1
diff --git a/Framework/PythonInterface/test/python/plugins/algorithms/MuonMaxEntTest.py b/Framework/PythonInterface/test/python/plugins/algorithms/MuonMaxEntTest.py
index 711bd6881d5da27828c3f653a7496c2fa20e7023..90d92b57f8416d052b13821948224d76b5d96d54 100644
--- a/Framework/PythonInterface/test/python/plugins/algorithms/MuonMaxEntTest.py
+++ b/Framework/PythonInterface/test/python/plugins/algorithms/MuonMaxEntTest.py
@@ -39,7 +39,7 @@ class MuonMaxEntTest(unittest.TestCase):
             UnitX='Time')
         return inputData
 
-    def genData3(self):
+    def genDataWithDeadDetectors(self):
         inputData = CreateSimulationWorkspace("MUSR", "0,1,32")
         xData = (inputData.dataX(0)[1:] + inputData.dataX(0)[:-1]) / 2.
         for j in range(inputData.getNumberHistograms()):
@@ -80,7 +80,7 @@ class MuonMaxEntTest(unittest.TestCase):
         self.cleanUp()
 
     def test_deadDetectors(self):
-        inputData = self.genData3()
+        inputData = self.genDataWithDeadDetectors()
         # check input data has 2 dead detectors
         for k in range(inputData.getNumberHistograms()):
             if k == 24 or k == 42:
diff --git a/docs/source/release/v3.13.0/muon.rst b/docs/source/release/v3.13.0/muon.rst
index e8cd0f2afd3fa848c8dae0e42378cfcdc3df5a43..2333aaccce368c6644684e009528db74353c5d56 100644
--- a/docs/source/release/v3.13.0/muon.rst
+++ b/docs/source/release/v3.13.0/muon.rst
@@ -33,8 +33,8 @@ Improvements
 
 Bug fixes
 #########
-- :ref:`MuonMaxent <algm-MuonMaxent>` and :ref:`PhaseQuad <algm-PhaseQuad>`  no longer include dead detecotrs (zero counts) when calculating the frequency spectrum.
-- :ref:`RemoveExpDecay <algm-RemoveExpDecay>` will not alter data from a dead detecotrs (zero counts).
-- :ref:`CalMuonDetectorPhases <algm-CalMuonDetectorPhases>` will give an error code for dead detecotrs (zero counts) in the phase table.
+- :ref:`MuonMaxent <algm-MuonMaxent>` and :ref:`PhaseQuad <algm-PhaseQuad>`  no longer include dead detectors (zero counts) when calculating the frequency spectrum.
+- :ref:`RemoveExpDecay <algm-RemoveExpDecay>` will not alter data from a dead detectors (zero counts).
+- :ref:`CalMuonDetectorPhases <algm-CalMuonDetectorPhases>` will give an error code for dead detectors (zero counts) in the phase table.
 
 :ref:`Release 3.13.0 <v3.13.0>`