Table 3.

Physics and technical standards.

Category	Standard
Documentation and records	1. The following shall be subject to detailed documentation:  (a) results of acceptance tests,  (b) results of control measurements,  (c) equipment acceptance protocols,  (d) equipment failures and repairs,  (e) equipment exploitation log (including: daily operating conditions, breakdowns, stoppages, repairs, etc.),  (f) schedule of technical inspections,  (g) schedule of equipment control tests (daily, weekly, monthly, quarterly, half-yearly, yearly),  (h) certificates or confirmations of specialist training in operation of specific equipment taken by responsible staff. 2. Head of the radiotherapy unit shall keep a register and documentation of technical and dosimetrical failures and all inconsistencies between physical parameters and indications recorded in an irradiation sheet and actual parameters and indications during irradiation that may lead to A or B category radiological accidents. 3. The institution has implemented and documented:  (a) control and measurement procedures for physical and technical parameters of radiotherapeutic and accessory equipment (e.g. treatment table, audiovisual communication system, air-conditioning),  (b) control and measurement procedures for control and measurement equipment,  (c) emergency procedures in case of detecting faulty operation or technical defects,  (d) equipment operational instructions.
Physics parameters	1. Equipment physical parameters shall comply with national and international standards as to measured values, required measurement methods and tolerances and safety standards (e.g. IEC, CENELEC, ICRU, IAEA, ICRP, Euratom, national standards). 2. All calibration and dosimetrical operations shall be made or supervised by a qualified expert in medical physics. 3. The institution has introduced a list of tolerances admissible in technical inspection and periodical equipment control tests, as required by national regulations.
Technical failures	1. The institution has defined the technical failure of therapeutic apparatus. 2. The institution has implemented and documented an emergency procedures in case of a defect or faulty operation of therapeutic apparatus/measuring equipment. 3. In case of a technical failure of therapeutic apparatus, a responsible radiation technologist shall report the case to the person responsible for technical quality and efficiency of equipment in the institution. 4. Radiation technologist shall resume operation of the faulty apparatus only after receiving an acceptance protocol signed by head of the institution/authorized person. 5. In case of a technical failure, Head of the institution shall:  (a) investigate into the cause and circumstances of the failure or non-conformity,  (b) report the failure or non-conformity to his or her immediate superior. 6. Take measures to eliminate the cause of the failure or non-conformity.