MIRAGE DOOR OVERVIEW

Utilizing state-of-the-art high technology contact mechanisms, the Mirage is easily opened and closed. The Mirage "classroom" latch operates and is exactly like a standard medical suite or office door. In addition, the latch is lockable from the outside only.

Viewing the Mirage from either side, when it is in the closed position, the appearance of the door does not reveal that it is RF shielded. For hospital use, this reduces the trauma associated with entering an MRI or other medical suite. For security use, the advantages are obvious.

RF SHIELDING PERFORMANCE

• Exceeds MRI performance requirements.
• Exceeds NSA 73-2A performance requirements.

MIRAGE DOOR SPECIFICATIONS

TO PREVENT UNAUTHORIZED ENTRY, THE MIRAGE IS KEY-LOCKABLE FROM THE OUTSIDE.

1.1 Door Leaf: Consists of solid core, plastic laminate veneered leaf with full perimeter brass contact strip. The leaf is hung from three (3) radial thrust bearing hinges. Two layers of fully annealed copper sheets are laminated to the exterior surface of the leaf and electrically bonded to the perimeter brass contact strip to provide RF shielding effectiveness. A user serviceable brass contact strip with an integral beryllium copper contact mechanism is attached to the leaf bottom. 1.2 Door Latch: The door handle is of the standard "classroom" type, lockable from the outside only. All hardware, hinges and latch, have a brushed US26D finish. 1.3 Door Jamb: Consists of kiln-dried dimensioned hardwood directly mounted to dual skinned shielding panels. The door and frame are integrated and furnished as an assembly.

1.4 RF Contact Mechanism: The RF seal is a low-maintenance, high-performance system accomplished without the use of a "knife edge" or Recessed Contact Mechanism. Replacement of contact mechanisms is accomplished with the use of a screwdriver only. Contact mechanism consists of a single row of beryllium copper alloy contact strips. Contact mechanism is mounted to the interior side of the door jamb, and not the door leaf. This mounting location ensures protection of the contact mechanism from the passage of cryogen dewars, carts, personnel and equipment. The contact mechanism is user serviceable and repairable.

1.5 Threshold: Consists of a solid brass, tapered ramp mounted directly onto the shielded door jamb. This brass sill provides the necessary RF seal with the door leaf contact mechanism and meets the requirements of the handicapped.

CONCEALED CONTACT MECHANISM PROVIDES COMPLETE RF SHEILDING INTEGRITY.

1.6 Door Operating Force: Door opening "pull" force is less than 20 pounds. Door closing "push" force is less than 20 pounds. 1.7 Standard Door Opening - 4 ft (1.22m) x 7 ft. (2.13m) 1.8 The RF shielding performance of the Mirage Door is depicted below.

5110 North Mingo
Tulsa, OK 74117-4901

© 1992 Braden Shielding Systems