diff --git a/README.md b/README.md
index cb1950b..6e30a0a 100644
--- a/README.md
+++ b/README.md
@@ -34,11 +34,13 @@ Detector geometry is encoded using ROOT math libraries in the `src/Detectors` fo
 
 To choose which detector scheme is run, modify the main function in `src/Detectors/main.cpp`. The included geometries also have options to do an internal geometry consistency check and print out coordinates for drawing the detector arrays, which can be useful for testing.
 
+To run the geometry code, one needs to provide an input file containing the following: the path of a Mask kinematics data file, the path to which data should be written, the path to a file containing a list of dead channels (optional, if not used, write None for the path), the number of threads to be used by the thread pool, and a keyword for the array type (current options are Sabre or Anasen)
+
 To run Detectors use the format
 
-`./bin/Detectors <kinematics_datafile> <new_detection_datafile> <new_detection_statsfile>`
+`./bin/Detectors <input_file>`
 
-where the detection datafile contains all of the kinematics data as well as information about which particles are detected and the statsfile is a text file containing efficiency statistics.
+An example input file is provided with the repository.
 
 ## Data visualization
 All data is saved as ROOT trees of std::vectors of Mask::Nucleus classes. To enable this, a ROOT dictionary is generated and linked into a shared library found in the `lib` directory of the repository. This allows the user to link to the shared library for accessing and analyzing the data generated by Mask.