code: public void auditActorStartEvent(RFC3881EventOutcomeCodes eventOutcome, String actorName, String actorStarter)
  	{
  		if (!isAuditorEnabled()) {
  			return;
  		}
  		ApplicationStartEvent startEvent = new ApplicationStartEvent(eventOutcome);
  		startEvent.setAuditSourceId(getAuditSourceId(), getAuditEnterpriseSiteId());
  		startEvent.addApplicationParticipant(actorName, null, null, getSystemNetworkId());
  		if (!EventUtils.isEmptyOrNull(actorStarter)) {
  			startEvent.addApplicationStarterParticipant(actorStarter, null, null, null);
  		}
  		audit(startEvent);
  	}
docs: Sends a DICOM Application Activity / Application Start Event audit message
  
  @param eventOutcome Event Outcome Indicator
  @param actorName	Application Participant User ID (Actor Name)
  @param actorStarter Application Starter Participant User ID (Actor Starter Name)