diff --git a/README.md b/README.md
index e81ee5986ba4c34d6ee41a72b62d1c0815205749..5dbec2a6c6fad31bb1582ffce8eef5ac9cfd5ce1 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,7 @@ block by block.
 unset ATHENA_PREFIX
 
 # Install "athena" detector description (at least the materials are needed);
-git clone https://eicweb.phy.anl.gov/EIC/detectors/athena.git
+git clone https://eicweb.phy.anl.gov/EIC/detectors/athena.git --branch irt-init-v01
 cd athena && mkdir build && cd build
 cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA ..
 make -j2 install
@@ -95,9 +95,9 @@ cd ip6 && mkdir build && cd build
 cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA ..
 make -j2 install
 
-# Install a particular branch of the EIC data model (will become master soon);
+# Install a particular branch of the EIC data model;
 cd /tmp/ATHENA
-git clone https://eicweb.phy.anl.gov/EIC/eicd.git --branch ayk-01
+git clone https://eicweb.phy.anl.gov/EIC/eicd.git --branch irt-init-v01
 cd eicd && mkdir build && cd build
 cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA ..
 make -j2 install
@@ -113,7 +113,7 @@ Installation
 
 ```
 cd /tmp/ATHENA
-git clone https://eicweb.phy.anl.gov/EIC/irt.git --branch ayk-01
+git clone https://eicweb.phy.anl.gov/EIC/irt.git --branch irt-init-v01
 cd irt && mkdir build && cd build
 cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA -DEVALUATION=YES ..
 make -j2 install
@@ -128,25 +128,6 @@ IRT library in application to a basic ATHENA e-endcap proximity focusing aerogel
 
 <br/>
 
-eRICH example configuration
----------------------------
-
-  See [ERich_geo.cpp](detectors/src/ERich_geo.cpp) for a simple API example, in particular the calls
-which define gas volume and aerogel radiators, as well as the photosensor geometry.
-
-  The following will compile libathena.so plugin with e(d)RICH detectors only. Be aware that it will 
-overwrite /tmp/ATHENA/lib/libathena.so installed earlier.
-
-```
-export LD_LIBRARY_PATH=/tmp/ATHENA/lib:${LD_LIBRARY_PATH}
-cd /tmp/ATHENA/irt/detectors && mkdir -p build && cd build
-cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA -DIRT=/tmp/ATHENA ..
-make -j2 install
-
-```
-
-<br/>
-
 Simulation pass
 ---------------
 
@@ -193,7 +174,7 @@ Juggler reconstruction pass
 
 ```
 cd /tmp/ATHENA
-git clone https://eicweb.phy.anl.gov/EIC/juggler.git --branch ayk-01
+git clone https://eicweb.phy.anl.gov/EIC/juggler.git --branch irt-init-v01
 cd juggler && mkdir build && cd build
 cmake -DCMAKE_INSTALL_PREFIX=/tmp/ATHENA ..
 
diff --git a/testIRT.py b/testIRT.py
index 28a5a3d45bf383931e4307832d6ef9a0a09ce502..34dc1b61246bf382707fe4e91c9483327ef69ddb 100644
--- a/testIRT.py
+++ b/testIRT.py
@@ -30,9 +30,13 @@ qe_data = [
     (850, 0.06),
     (900, 0.04)
 ]
+qe_30 = [
+    (350, 0.30),
+    (900, 0.30)
+]
 
 radiators = [
-    "Aerogel zbins=5 smearing=uniform 3mrad"
+    "Aerogel zbins=1 smearing=uniform 3mrad"
 ]
 
 podioinput = PodioInput(
@@ -45,16 +49,17 @@ podioinput = PodioInput(
 irtrec = IRTAlgorithm(
         # Input collections: MC truth tracks and eRICH raw hits (photons);
         inputMCParticles="mcparticles",
-        #inputHitCollection="ERICHHits",
 
-        # Output collection: eRICH PID decisions; 
-        #outputCherenkovPID="ERICHPID",
+        #Detector="ERICH",
 
         # SiPM QE and geometric efficiency; FIXME: units.eV coefficient gives extra x1000 (?);
         QEcurve=[ ((1239.84/a), b) for a, b in qe_data ],
-        GeometricEfficiency="0.85",
+        #GeometricEfficiency="0.85",
+        #QEcurve=[ ((1239.84/a), b) for a, b in qe_30 ],
+        GeometricEfficiency="1.00",
         # Rebin the QE in that many equidistant bins;
-        QEbins="100",
+        #QEbins="100",
+        QEbins="2",
 
         # eRICH optics configuration produced by ERich_geo.cpp code along with the dd4hep XML file;
         ConfigFile="erich-config.root",
@@ -69,7 +74,7 @@ ApplicationMgr(
         TopAlg = [podioinput, irtrec, out],
         EvtSel = 'NONE',
         # Process that many events;
-        EvtMax = 100,
+        EvtMax = 500,
         ExtSvc = [podioevent],
         OutputLevel = DEBUG,
         PluginDebugLevel = 2