So now on the market mainstream "3 + 1 brand" (Siemens, Philips, GE + United Imaging) on the room size requirements vary, but are similar. Nuclear magnetic **** vibration machine room room area control in 40 square meters or so appropriate, less than 35 square meters can not be installed risk, greater than 50 square meters will result in waste of area. The shape of the room should be more square rectangle, the aspect ratio should not be too large, the width of the control in the 5.5 meters or so more appropriate.
The mainstream nuclear magnetic **** vibration equipment on the market are with external water-cooled units, and due to the impact of magnetic interference, nuclear magnetic **** vibration machine room can not be placed in the auxiliary equipment, so the nuclear magnetic **** vibration equipment should be equipped with standard auxiliary equipment room. Auxiliary equipment room needs to be placed in the control cabinets, power distribution cabinets, water-cooled units, air conditioning units and other equipment, the area should not be too small, 15 to 20 square meters is more appropriate.
Of course, the control room is also necessary, the area of about 15 square meters is appropriate.
Requirements for load-bearing and transportation
Nuclear magnetic **** vibration equipment weight is large, the current clinical use of the more common 3.0T equipment weight can reach up to 13 tons (there are also higher field strength equipment, generally used for research, need to be analyzed specifically). This puts certain requirements on the weight-bearing design of the machine room.
And this, the weight and volume of the largest part of the magnet can not be split, need to be transported as a whole. A single magnet itself weighs about 10 tons, which also places high demands on the planning of the transport path.
The transportation path includes the entire process from unloading the equipment to getting it into the server room. First, the construction unit needed to plan a site that would be easy for the trucks and cranes to reach. The site for unloading the trucks needed to have a hardened platform at least 3x3m square for lifting the magnets. The site has a load-bearing capacity of 10KN/m2 and can be constructed in the form of cast concrete, brickwork or scaffolding, with a 1cm steel plate for equalizing the weight. Lifting magnet site and indoor floor level with height difference also need to be padded or paved ramp, from the unloading site to the machine room of the path to meet the requirements of the magnet load-bearing.
In addition to the weight, the volume of the magnet is also an important factor to be considered in the transportation, the entire transportation path includes a horizontal transportation path, turning site and the entrance to the machine room several links. The net width of the horizontal transportation path is generally required to be not less than 2.4m (2.6m for a few equipments), and the net height is not less than 2.5m. The turnaround site needs to be a little larger, and is generally considered to be 3x3m. Access to the engine room must be in the engine room wall hole, generally recommended by the 2.8x2.8m size of the reserved, to be transported into the equipment and then masonry sealing.
Requirements for drop boards
Similar to the radiology equipment room, the NMR*** vibration room also needs to be reserved for the planning of the structural drop board space for the piping trench and equipment foundations. The difference with the radiology room is that the floor of the MRI room also needs to be paved with a moisture barrier and shielding layer, which requires more space.
In addition, there is a limit to the amount of homogeneous static metal objects (e.g., floor reinforcement) within close proximity to the center of the magnet, and a slab drop can also help increase the distance between the floor and the equipment. Taken together, the nuclear magnetic *** vibration machine room of the drop plate height is generally considered to 300mm.
Requirements for the wall
Nuclear magnetic *** vibration machine room walls do not have radiation protection requirements, so do not have to use solid brick or concrete masonry. However, the wall needs to be laid electromagnetic shielding layer, the load-bearing capacity of the wall and solidity have certain requirements, generally can be used aerated concrete blocks or other masonry materials with low weight capacity.
Requirements for doors and windows
Doors
Nuclear magnetic **** vibration machine room door set up with the ordinary radiological imaging equipment machine room door set up is somewhat different. Ordinary radiological imaging equipment room is often set up two doors, a door to the consultation corridor, as the main entrance to the patient, often using 1.5 meters of electric sliding door; a door to the control room, to facilitate access to the doctor, the use of 1 meters of manual flat door, such a setup for the electromagnetic shielding treatment of nuclear magnetic *** vibration machine room is unfavorable.