Section He-P 4040.03 - Shielding Plan Review(a) Prior to new construction or modification of existing installations utilizing ionizing radiation machines, a review of floor plans, shielding specifications, and equipment arrangements shall be completed as set forth in paragraphs (b) -(d) below to ensure that, once operational, no individual will receive a dose in excess of the limits prescribed in He-P 4020.(b) All prospective and existing registrants shall utilize the design services of a registered service provider as described in He-P 4040.07.(c) Each prospective or existing registrant may request the department of health and human services/radiological health section (DHHS/RHS) to provide an evaluation of an existing shielding plan review or to offer technical advice on shielding requirements for a radiation machine installation.(d) The following information shall be submitted to DHHS/RHS with any request for a shielding plan review:(1) Distances where applicable, such as: a. From the source of radiation to the patient;b. From the source of radiation to each point for which the shielding requirement is to be calculated; andc. From the patient to each point for which the shielding requirement is to be calculated;(2) The normal location(s) of the system's radiation port;(3) The travel and traverse limits of the radiation beam port(s);(4) Direction(s) in which the useful beam will be directed;(5) Locations of any windows, doors or other openings;(6) The location of the operator's booth;(7) The location of the control panel;(8) The structural composition and thickness or lead equivalent of all existing or planned walls, doors, partitions, floor, and ceiling of the room(s) to be evaluated;(9) The dimensions of the room(s) to be evaluated;(10) The type of occupancy of all adjacent areas, including the space above and below the rooms(s), and, if there is an exterior wall, the distance to the closest area(s) where it is likely that an individual might be present;(11) The make and model of the equipment, the maximum technique factors as defined in He-P 4041, and the output waveform;(12) The type of examination(s) or treatment(s) to be performed with the equipment; and(13) Information on the anticipated workload of the system(s) in milliampere seconds (mAs) per week, milliampere seconds being the product of the x-ray tube current and the exposure time.(e) After installation of a radiation machine, the registrant shall keep the following records for review during an inspection by DHHS/RHS until the registration is terminated:(1) The maximum rated technique factors, as defined in He-P 4041, of each machine;(2) A scaled drawing of the room in which each stationary radiation machine system is located indicating the location of tubeheads, describing the use of each area adjacent to the room, and specifying an estimation of the extent of occupancy by an individual in such areas;(3) The results of a survey for radiation levels present at the operator's position and at pertinent points outside the room at specified test conditions; and(4) The shielding plan review which shall include the type and thickness of materials, or lead equivalency, of each protective barrier.(f) After installation of an MRI machine and until the registration is terminated, the registrant shall keep the following records for review during an inspection by DHHS/RHS:(1) A scaled drawing of the MRI suite indicating the location of reception, patient, prescreening, control room, MRI machine, fire extinguishers and equipment;(2) An MRI suite safety protocol which shall be reviewed: b. After any change is made to the MRI suite; and(3) Documentation that the local fire department is aware of the presence of MRI suite hazards in the event of an emergency response.N.H. Admin. Code § He-P 4040.03
#6827, eff 8-6-98; ss by #7919, eff 7-18-03; ss by #9945-A, eff 6-22-11
Amended by Volume XXXV Number 27, Filed July 9, 2015, Proposed by #10864, Effective 6/25/2015, Expires 6/25/2025.