Windows Access Control System
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Windows Access Control System
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  • Entry and exit transaction processing
  • Works with Electronic dosimeters, self-reading dosimeters or in manual mode
  • Dosimeter setpoints flexible by RWP, Task, Individual
  • Island mode operation (switching RWPs)
  • Failover functionality: client can access up to 10 different servers in the event that one is not running
  • The client can run in stand-alone mode if servers are offline; it can optionally validate a worker’s authorization to enter RCA
  • Journal recovery available to upload transactions once the server is back on-line 
  • Configurable Access Control tests 
  • Customizable messages, sounds, videos 
  • Automatic notification of problems 
  • Editing of access control records


The HIS-20™ Access Control system (Windows Access Control System, or WACS system) is a completely integrated set of components used to control personnel access to radiological control areas in a facility. These components seamlessly integrate with all of the appropriate functions within the HIS-20 system. The customer has an almost unlimited number of configuration options allowing the system to be implemented with a minimum impact on site processes and procedures.

Based on the items described above, the software performs a variety of access checks and determines if the worker is allowed or denied access. A message is displayed indicating if access to the RCA has been allowed or denied. If access is denied, messages describing why access has been denied are displayed for the worker. If entry is allowed, an access record is created in the database. When electronic DRDs are used, the DRD is loaded with the appropriate dose and dose rate alarm limits. These limits are derived from the most restrictive value of the person’s dose margin or the dose alarm settings of the RWP / Task. Histogram data can also be captured if desired.