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Each registrant must conduct surveys to comply with this Article to evaluate the magnitude and extent of radiation levels and potential radiological hazards.
(a) The registrant must ensure that instruments and equipment used for quantitative radiation measurements, for radiation survey purposes, are calibrated at intervals not to exceed 12 months for the radiation measured, except when a more frequent interval is specified in this Article.
(b) All personnel dosimeters, except for direct and indirect reading pocket ionization chambers and those dosimeters used to measure the dose to any extremity, that require processing to determine the radiation dose, must be processed and evaluated by a dosimetry processor:
(1) holding current personnel dosimetry accreditation from the National Voluntary Laboratory Accreditation Program of the National Institute of Standards and Technology; and
(2) approved in this accreditation process for the type of radiation or radiations included in the National Voluntary Laboratory Accreditation Program that most closely approximates the type of radiation or radiations for which the individual wearing the dosimeter is monitored.
(c) The registrant must ensure that adequate precautions are taken to prevent a deceptive exposure of an individual monitoring device.
(d) No registrant shall remove an exposure from an individual's exposure record without prior authorization from the Department. To remove an exposure from an individual's exposure record, the registrant must provide the following documentation to the Department:
(1) a letter to the Department indicating the person whose exposure is to be removed along with an investigation into the possible causes for the exposure and a signed note from the individual concurring with the removal of the exposure; and
(2) a copy of the individual's personnel monitoring report along with the investigation the personnel monitor vendor conducted of the exposure. For occurrences where the personnel monitor vendor indicates that a static exposure occurred on the personnel monitoring report sent to the registrant, the latter investigation is waived.
(Added City Record 4/24/2019, eff. 5/24/2019)
(a) Each registrant must monitor exposures from sources of radiation to demonstrate compliance with the occupational dose limits of this Article.
(b) Each registrant must supply and require the use of individual monitoring devices by:
(1) adults likely to receive, in 1 year from sources external to the body, a dose in excess of 10 percent of the limits in 24 RCNY Health Code § 175.13; and
(2) minors and declared pregnant workers likely to receive, in 1 year from sources external to the body, a deep dose equivalent in excess of 10 percent of any of the applicable limits in 24 RCNY Health Code § 175.13; and
(3) declared pregnant workers likely to receive during the entire pregnancy, from radiation sources external to the body, a deep dose equivalent in excess of 1 millisievert (0.1 rem); and
(4) all individuals working with medical fluoroscopic equipment, including equipment operators and other staff physically present at the treatment location who are not behind protective shielding.
(5) All personnel monitoring devices used to monitor fluoroscopic radiation exposures must be returned to the vendor for processing on a monthly basis, except that for individuals only working with mini-C arm fluoroscopy equipment, the monitoring devices must be returned at least quarterly.
(6) The registrant must submit the dosimeter for processing with due diligence and never after the time specified by the manufacturer of the dosimeter. Where dosimeters are processed on the registrant's premises, the registrant must require monitored individuals to read their monitors monthly.
(Added City Record 4/24/2019, eff. 5/24/2019)
Each registrant must ensure that individuals who are required to monitor occupational doses in accordance with 24 RCNY Health Code § 175.13 use individual monitoring devices as follows:
(a) an individual monitoring device used for monitoring the dose to the whole body must be worn at the unshielded location of the whole body likely to receive the highest exposure. For individuals wearing a protective apron, when only 1 individual monitoring device is used, it must be located at the neck (collar) outside the protective apron. When a second individual monitoring device is used for the same purpose, it must be located under the protective apron at the waist. The second individual monitoring device is required for a declared pregnant worker.
(b) an individual monitoring device used for monitoring the dose to an embryo/fetus of a declared pregnant worker, pursuant to 24 RCNY Health Code § 175.17, must be located at the waist under any protective apron being worn by the worker;
(c) an individual monitoring device used for monitoring the lens dose equivalent, to demonstrate compliance with 24 RCNY Health Code § 175.13, must be located at the neck (collar), outside any protective apron being worn by the monitored individual, or at an unshielded location closer to the eye;
(d) an individual monitoring device used for monitoring the dose to the extremities, to demonstrate compliance with 24 RCNY Health Code § 175.13, must be worn on the extremity likely to receive the highest exposure. Each individual monitoring device must be oriented to measure the highest dose to the extremity being monitored.
(Added City Record 4/24/2019, eff. 5/24/2019)
(a) Each registrant must maintain records of the radiation protection program, including audits, records of surveys, calibrations, maintenance and modifications (e.g., major software and hardware upgrades) performed on the x-ray system and a copy of all correspondence with the Department regarding the x-ray system.
(b) Unless otherwise indicated, the registrant must retain the records required by subdivision (a) of this section for a minimum of 5 years after the record is made, except that model and serial numbers of all major components and user's manuals for those components, including software, must be maintained for the life of the system.
(Added City Record 4/24/2019, eff. 5/24/2019)
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