John Muir Health: John Muir Medical Center Walnut Creek Campus Linear Accelerator and CT Scan Replacement
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John Muir Health: John Muir Medical Center Walnut Creek Campus Linear Accelerator and CT Scan Replacement
Walnut Creek, CA
This 3,800-square-foot remodel consists of a complete renovation of an existing linear accelerator room, CT Scan room, equipment control rooms, and patient holding space. The project includes installation of a Varian TrueBeam Linear Accelerator with Brainlab Exac Trac stereoscopic/stereotactic technology, and a Philips Big Bore CT Scan. Through a collaborative effort with John Muir Medical Center’s Radiation Oncology department, the pre-construction contractor, equipment vendors, physicist, and design team consultants, Ratcliff was able to guide the client to the most cost effective design solutions to respond to their needs.


The new patient-focused design provides a healing, soothing environment while providing functional design solutions for day-to-day operations. A thorough accounting of all treatment equipment allowed for the design of an organized casework storage system to hide intimidating accessory and equipment out of patient view.


The existing linear accelerator is located in the basement of the facility, and surrounded by earth on two sides. Our design for the new linear accelerator, situated close to the current isocenter, allows for the existing shielding configuration to be used in the new radiation shielding plan, thereby substantially minimizing additional shielding costs. By exploring interior shielding options such as lead and steel during design, we avoided costly exterior building modifications as well as major disruptions. In addition, the project was completed in phases so it remained in operation during construction. The completed project allows John Muir Health to provide state-of-the-art radiation oncology services for years to come.
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