Chapter VI.  Operations Chief of Work with X-ray and Operations Chief of Transmissive Photography with Gamma-Rays

(Appointment of an Operations Chief of Work with X-rays)

Article 46.  In terms of the work as provided for by item 5 of Article 6 of the Cabinet Order, the employer shall appoint on operations chief of work with X-rays from among those who have been granted the license for operations chief of work with X-rays in each of the controlled areas.

(Duties of Operations Chief of Work with X-rays)

Article 47.  The employer shall have the operations chief of work with x-rays perform the following functions:

(1)  Make sure that the notices conforming to paragraph 1 of Article 3 or paragraph 4 of Article 18 are put up as provided for in said paragraph.

(2)  Make sure that the irradiation cylinder or diaphragm conforming to paragraph 1 of Article 10 or the filtration plate conforming to Article 11 are used properly.

(3)  Make sure that the measures conforming to each item of Article 12 or 13 , or Article 18-2 are taken accordingly.

(4)  Control the irradiation condition so that the dose of the exposure to the radiation workers can be minimized as low as possible, in addition to the measures as provided for by the preceding two items.

(5)  Inspect whether the measures provided for in paragraph 1 of Article 17 is taken conforming to the provision of the said paragraph of the said article.

(6)  Make sure that the place designated in paragraph 1 of Article 18 is cleared of workers before the start of and during the irradiation.

(7)  Inspect whether the radiation measuring instrument provided for in paragraph 3 of Article 8 is in conformity to the provision of the said paragraph.

(License for Operations Chief of Work with X-rays)

Article 48.  The license for operations chief of work with X-rays shall be granted to those who have passed the license examination for operations chief of work with X-rays and also to those as listed in the following items by the Director General of the Prefectural Labour Bureau.

(1)  Those who have been granted the license as provided for by the provisions of paragraph 1 of Article 3 of the Law concerning Technicians Responsible for Medical Treatment with Radioactive Substances (Law No. 226, 1951).

(2)  Those who are granted the license for chief technicians responsible for operation of nuclear reactors as provided for by paragraph 1 of Article 41 of the Law concerning Regulation of Nuclear Raw Materials, Nuclear Fuel Materials, and Nuclear Reactors (Law No. 166, 1957).

(3)  Those who are granted the license for first class chiefs responsible for handling of radioactive substances as provided for by paragraph 1 of Article 35 of the Law concerning Prevention of Radiation Hazards due to Radioisotopes, etc. (Law No. 167, 1957).

(Reasons for Not Granting a License for Operations Chief of Work with X-rays)

Article 49.  Those who are so designated by the Ministry of Health, Labour and Welfare Ordinance based on the provisions of item 2 of paragraph 2 of Article 72 of the Industrial Safety and Health Law (hereafter called "the Law"), concerning licenses for operations chief of work with X-rays, shall be younger than 18 years old.

(Subjects, etc., in License Examination for Operations Chief of Work with X-rays)

Article 50.  The license examination for operations chief of work with X-rays shall be conducted in terms of the following subjects in the form of paper tests:

(1)  Knowledge of control of X-rays

(2)  Knowledge of measurements of X-rays

(3)  Knowledge of effects of X-rays on organisms

(4)  Related laws and ordinances

(Exemption of Examination Subjects for License Examination of Operations Chief of Work with X-rays)

Article 51.  The Director General of the Prefectural Labour Bureau may exempt those who fall under any one of the categories set forth in the following items from the examination subjects designated in each of the said paragraphs in the license examination for the operations chief of work with x-rays.

(1)  Those who have been granted the license of the class-2 radiation-related work supervisor conforming to paragraph 1, Article 35 of the Law concerning Prevention of Radiation Hazards Due to Radioisotopes, etc. and the class-2 radiation-related work supervisor (general license) conforming to paragraph 1, Article 17-5 of the Enforcement Order (Cabinet Order No. 259 of 1960) of the said Law may be exempted from the examination subjects designated in items 2 and 3 of the preceding Article.

(2)  Those who have been granted the license of operations chief of transmissive photography with gamma-rays may be exempted from the examination subjects designated in item 3 of the preceding paragraph.

(Details on License Examination for Operations Chief of Work with X-rays)

Article 52.  In addition to the items as provided by Article 71 of the Ordinance on Industrial Safety and Health (Ministry of Labour Ordinance No. 32, 1972, hereafter called "Safety and Health Ordinance") and also by the preceding two Articles, the items necessary for carrying out of the license examination for operations chief of work with X-rays will be established by the Minister of Health, Labour and Welfare.

(Appointment of Operations Chief of Transmissive Photography with Gamma-Rays)

Article 52-2.  In terms of the work listed in item 5-2 of Article 6 of the Cabinet Order, the employer shall appoint an operations chief of transmissive photography with gamma-rays from among those who have been granted the license for operations chief of transmissive photography with gamma-rays in each of the controlled areas.

(Duties of Operations Chief of Transmissive Photography with Gamma-Rays))

Article 52-3.  The employer shall have the operations chief of transmissive photography with gamma rays perform the following functions:

(1)  Make sure that the notices provided for in paragraph 1 of Article 3 or paragraph 4 of Article 18 are put up conforming to the provision of the said paragraph of the said Article.

(2)  Inspect the performance of the radiation source carrier devices or remote control system to adjust the position of the radiation source before starting its operation.

(3)  Check whether the transmission tube is moved conforming to the provision of item 1 of Article 18-4 and also whether the radiation source is taken out conforming to the provision of Article 18-3.

(4)  Make sure that the place designated in paragraph 1 of Article 18 is cleared of the workers before and during the irradiation.

(5)  Inspect whether the measures provided for in paragraph 1 of Article 17 are executed accordingly and also whether the radiation measuring instrument designated in paragraph 3 of Article 8 is installed accordingly.

(6)  Take the measures provided for in Article 18-2.

(7)  Take the measures provided for in item 2 of Article 18-4.

(8)  Control the irradiation condition so that the dose of the radiation workers can be minimized as low as possible, in addition to taking the measures of the above two items.

(9)  Inspect the position of the radiation source and the condition of the shield using the measuring instrument during the operation.

(10)  Conduct the inspection provided for in paragraph 1 of Article 19.

(11) Take the measures provided for in item 4 of paragraph 1 of Article  42 when the accident designated in the said article occurs and notify the employer to that effect.

(12)  Take the measure provided for in Article 18-10 in carrying out the work for putting the radiation source into the radiation source container or other container and have the workers use the forceps, etc., in order to keep an appropriate distance between the workers and the radiation source at the time of the accident designated in item 4 of paragraph 1 of Article  42.

(License for Operations Chief of Transmissive Photography with Gamma-Rays)

Article 52-4. The license for operations chief of transmissive photography with gamma-rays shall be granted by the Director General of the Prefectural Labour Bureau to those who have passed the license examination of operations chief of transmissive photography with gamma rays and those who fall under any one of the following categories:

(1)  Those who have the license conforming to paragraph 1, Article 3 of the Law concerning Technicians Responsible for Medical Treatment with Radioactive Substances.

(2)  Those who have the license of the Nuclear Reactor Operation Supervisor conforming to paragraph 1, Article 41 of the Law concerning Regulation of  Nuclear Raw Material, Nuclear Fuel Materials and Nuclear Reactors.

(3)  Those who have the license for the class 1 radiation-related operation supervisor conforming to paragraph 1, Article 35 of the Law concerning Prevention of Radiation Hazards Due to Radioisotopes, etc. or the license (general license) of class-2 radiation-related operation supervisor conforming to paragraph 1, Article 17-5 of the Enforcement Order of the said Law.

(Reasons for Not Granting a License for Operations Chief of Transmissive Photography with Gamma-Rays)

Article 52-4-2. Those who are designated as such by the Ministry of Health, Labour and Welfare Ordinance based on the Provisions of item 2 of paragraph 2 of Article 72 of the Law concerning licenses for operations chief of transmissive photography with gamma-rays, shall be younger than 18 years old.

(Subjects, etc., in License Examination for Operations Chief of Transmissive Photography with Gamma-Rays)

Article 52-4-3. The license examination for operations chief of transmissive photography with gamma-rays shall be conducted in terms of the following subjects in the form of paper tests:

(1)  Knowledge on work to undertake transmissive photography with gamma-rays.

(2)  Knowledge on gamma-rays radiation equipment.

(3)  Knowledge on effects of gamma-rays on organisms.

(4)  Related laws and ordinances.

(Exemption of Subjects in License Examination for Operations Chief of Transmissive Photography with Gamma Rays)

Article 52-4-4. The Director General of the Prefectural Labour Bureau may grant exemptions in the subjects for examination listed in item 3 of the preceding Article out of the subjects of examination in the license examination for operations chief of transmissive photography with gamma rays for those who have passed the license examination for operations chief of work with X-rays.

(Details on License Examination for Operations Chief of Transmission Photography with Gamma Rays)

Article 52-4-5. In addition to the items as provided by Article 71 of the Safety and Health Ordinance and also by the preceding two Articles, the items necessary for carrying out of the license examination for operations chief of transmissive photography with gamma rays will be established by the Minister of Health, Labour and Welfare.