The maze design and sensor locations are critical to make the ISTAVA Inc doorless system effective in the maze and modulator room. 1. A simplified 2 example drawing of sensor locations is shown below to demonstrate how much attention is required in sensor positioning. ISTAVA Inc is also able to assist the architects and physics staff in doorless room maze design. The drawing set issued by ISTAVA Inc will include elevations of all sensors to clarify exact locations.
	Optional special sensors are available to scan the floor with lasers and wall scanning sensors are also available when it is felt that extra precautions are required.
	The number of sensors required is primarily determined by the complexity of the maze and the equipment locations within the modulator room, but also by the client selected sensor options available.
	PIR = Passive Infrared Receiver AIR = Active Infrared Receiver LPO = Last Person Out button	WL = Warning Lights DS = Door Switch.          Often these switches are low current / voltage magnetic door switches.
	1 The modulator room is an unshielded space near or behind the radiation treatment machine that contains the modulator, x-ray generator, switch gear, relay box, water cooling filters and gauges and other radiation treatment machine support equipment.
	2 The maze complexity will increase significantly within a doorless radiation treatment room when a machine is installed that exceed 6MV .
	*AIR 3 is optional. LPO near outer maze exit requires special hardware and software