(Art. 2 para. 2 let. b)
NoteThe terms are listed in alphabetical order.
Electronic personal dosimeter which provides a direct display of the accumulated dose as well as other dosimetric information, depending on the intended use.
The activity concentration indexI is given by the following formula:
I =C Ra226/300 Bq/kg +C Th232/200 Bq/kg+C K40/3000 Bq/kg
whereC Ra226,C Th232andC K40are the activity concentrations in Bq/kg of the corresponding radionuclides in the building material.
X-ray systems with a tube voltage of up to 70 kV, a tube current of up to 15 milliamperes (mA) and a radiation field size of ≤ 6 cm diameter.
Dose level used for purposes of optimisation in diagnostic or interventional medical exposures, or activity level in the case of radiopharmaceuticals. Diagnostic reference levels are defined for typical examinations for groups of standard-sized patients or standard phantoms for broadly defined types of equipment.
Shielding of an installation or an irradiator, which ensures that useful, scattered and stray radiation is completely contained and shielded to such an extent that the ambient dose rate at a distance of 10 cm from the surface is reduced to less than 1 µSv per hour and that, at all accessible locations, the dose limits applicable for members of the public cannot be exceeded.
Diagnostic or therapeutic interventions performed under image guidance with ionising radiation. These also include interventions outside the field of radiology, e.g. in angiology, surgery, gastroenterology, cardiology, orthopaedics, pain therapy or urology.
Shielding of an installation which ensures that, during operation, useful, scattered and stray radiation is completely contained, except for sample openings, and shielded to such an extent that the ambient dose rate at a distance of 10 cm from the surface is reduced to less than 1 µSv per hour and that, at all accessible locations, the dose limits applicable for members of the public cannot be exceeded.
Process in which the final radiopharmaceutical product is produced by following the radiolabelling instructions specified by the licence of a radiolabelling kit for diagnostic purposes.
Medicinal products containing radionuclides whose radiation is utilised for diagnosis or therapy. For the purposes of this Ordinance, the following are considered to be radiopharmaceuticals:
The isotope radon-222.
Procedure for detecting possible intakes without determining the effective dose. If a predefined threshold is exceeded, personal dosimetry must be performed to assess the committed effective dose.
Equipment or devices in which only electrons are accelerated and which generate X‑rays without being operated for this purpose. Electron microscopes are also considered to be stray radiation sources.
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