fix beam_monitor event stream read method

eos/event_handling.py

@@ -194,7 +194,7 @@ class ApplyMask(EventDataAction):
             fltr = (d.events.mask & (~self.bitmask_filter)) == 0
             d.events = d.events[fltr]
         post_filter = d.events.shape[0]
-        logging.info(f'      number of events: total = {pre_filter:7d}, filtered = {post_filter:7d}')
+        logging.info(f'      number of events: total = {pre_filter:7d}, after filtering = {post_filter:7d}')
         if d.device_logs == {} or not hasattr(dataset, 'update_info_from_logs'):
             return
         # filter pulses and logs to allow update of header information

eos/file_reader.py

@@ -459,7 +459,7 @@ class AmorEventData(AmorHeader):
         self._beam_monitor = self.rv('beam_monitor', default=None)
         pulses = self.read_chopper_trigger_stream(packets)
         current = self.read_proton_current_stream(packets)
-        beam_monitor = self.read_proton_current_stream(packets)
+        beam_monitor = self.read_beam_monitor_stream(packets)
 
         # read parameter logs not present in old files to ensure they are in self._log_keys if they exist
         _acquisition_filter = self.rv('acquisition_filter', default=None)