HEALTHCARE TECHNOLOGY


The CT controls are located outside


of the vault and the proton therapy equipment controls are in the vault. Multiple conduits are required between the systems and routing is limited to precise placement of the proton therapy equipment controls. All conduit is embedded in concrete


walls of the vault. Modeling these conduit pathways in 3D modeling software allows coordination with reinforcements that are strictly positioned for final equipment calibration and radiation shielding accommodations. Several large pull boxes are provided in the design for connecting the power and controls systems inside and outside of the vault.


Sizing of the pull boxes must be specified and adjusted as any modifications to the proton therapy equipment during design is experienced. Elevations showing the locations of each pull box and equipment disconnects further define the acceptable installation criteria. Cable tray sizing and coordination is completed in the design phase to account for the multiple runs of cabling provided with the equipment. Changes to the locations and routing cannot be accommodated during construction once the cabling layouts are defined by the manufacturers without risking a complete repeat of the coordination efforts which is time consuming and costly. Other electrical considerations include lightning protection and grounding.


MEVION S250i proton therapy system with HYPERSCAN pencil beam scanning at Kling Proton Therapy Center at Siteman Cancer Center at Barnes-Jewish Hospital in St. Louis, Missouri.


Coordination with the manufacturer is needed to determine lightning protection requirements and any additions, if necessary. Grounding provisions and details are not typically shown in the design documents but are important to a proton therapy installation. All cable trays have grounding provisions that are specified by the manufacturer and identified in the design guidance manual provided. The fire alarm system provides general


Agent tanks at garage/ground floor level


Service level


life safety monitoring and monitors vault clean agent fire suppression system for interconnection with secure vault doors. Attention to interconnections of clean agent aborting systems, door controls, ventilation systems, and system overrides is critical. Some owners may request a Last Man


Out (LMO) button for control of the system in specific scenarios. All these integrated controls must be reviewed by the local health and safety officials for approval. Lighting in the clinic areas is designed


for a bright and positive experience for the patients and staff in the clinic. Concerns about the effect of radiation on the LED drivers for the lighting in the treatment room are addressed by using low-voltage LED fixtures with remote drivers. Interconnection between door controls, fire alarm system, clean agent system, ventilation equipment, and proton therapy systems must be clearly shown on construction documents.


Fire suppression systems A clean agent system was required for this vault and fully designed to verify exact routing of piping and exact location of components during design phase (see diagram left). Note the angle of entry into the vault to prevent radiation leakage from the vault interior. It is beneficial to engage clean agent


Clinic level


Lower level


system representatives during design to verify system complexity level and thoroughly review clean agent shop drawings. Electrical should review submittal as well for cross coordination.


Clean agent piping system and space volumes – perspective from northwest. IFHE DIGEST 2021


Cooling systems Cooling systems require redundancy for maintenance and reliability. The proton therapy equipment is provided with one


51


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116