Neutron Door Safety Features

Radiation Shielding

Radiation Shielding Door (Neutron Door) Safety Features

Listed below are the optional safety features available for both our swing and slider radiation shielding doors (neutron doors).

Swing Radiation Shielding Door System Safety Options:

Presence Sensor

The presence sensor can be mounted inside the vault, just beyond the door path, to detect any motion, whether by an object or by a person, and immediately send a signal to the door operator and stop the door from opening or closing. A presence sensor can be mounted on the control room side, on the header of the frame, thus safeguarding both patients and technicians.

Safety Edge

Typically applied to the face of the strike side jamb, the safety edge is pressure sensitive and will detect any pressure that exceeds 8psi. Upon detection of pressure the safety edge will send an immediate signal to the operator to stop, or stop and reverse the door.

Sliding Radiation Shielding Door System Safety Options:

Battery Back-up

RPP’s battery back system will automatically open the door any time there is a power failure. It will slowly open the door for an adjustable length of time. After the power is restored, the system will automatically return to normal operation. The battery backup system is supplied with a monitored trickle charging system to keep the battery backup power supply fully charged.

Presence Sensor (light curtain)

RPP utilizes a light curtain presence sensing safety device on both sides of the sliding door. The light curtain presence sensors are mounting in the vault recess inches from the top of the slider door. This feature will send a signal to the operator upon sensing any motion that will stop or stop and reverse the slider door.

Safety Edge

The slider door will typically have two safety edges applied on both sides of the front door style. Detecting any pressure beyond 8psi, the safety edges will send a signal to the operator to stop or stop and reverse the door.

SAFE SWINGING POWER DOOR OPERATING SPEEDS (Time to open or close measured in seconds per ANSI A156.10 Standard)
DOOR WIDTH (Inches)	DOOR WEIGHT (LBS)
	1,000	2,500	5,000	7,500	10,000	12, 500	15,000
36”	6 SEC.	10 SEC.	14 SEC.	17 SEC.	19 SEC.	22 SEC.	24 SEC.
42”	7 SEC.	11 SEC.	16 SEC.	20 SEC.	23 SEC.	25 SEC.	28 SEC.
48”	8 SEC.	13 SEC.	18 SEC.	22 SEC.	26 SEC.	29 SEC.	32 SEC.
54”	9 SEC.	15 SEC.	19 SEC.	24 SEC.	29 SEC.	32 SEC.	36 SEC.
60”	10 SEC.	16 SEC.	23 SEC.	28 SEC.	32 SEC.	36 SEC.	39 SEC.
FORMULA (for door width & height other than those listed above, use the formula below) TIME TO OPEN OR CLOSE = (DOOR WIDTH IN INCHES x (√ DOOR WEIGHT IN LBS.) ÷ 188
WARNING This door operator should operate the door at a speed not faster than the above. Any attempt to operate at a faster speed will cause premature wear and damage to the operator and void any warranty. Also, liability may occur to anyone operating the door faster than recommended if injuries occur as a result.

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