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[en] In Jichi Medical School with radiation facilities in both school and its hospital, the system of radiation control is unified. It is because the medical school is situated inland, environmental monitoring for the whole area is necessary, and the same personnel work in both facilities. Radiation control in Jichi Medical School is performed routinely by two full-time employes and four medical radiation technicians. In the review of the practices of radiation control in Jichi Medical School, the following matters are described: features of medical radiation (X-ray generator, RI sources, etc. as exposure radiation sources), the present situation of the hospital (radiation usage, personnel radiation control), and efforts in the improvement of radiation control (the application of effective dose equivalent, the measurement of medical exposure dose, the countermeasures to neutron leakage from accelerators, the management of RI-administered patients, etc.). (Mori, K.)
[en] We consider constructing the relativistic system of collective coordinates of a field theory soliton on the basis of a simple principle: The collective coordinates must be introduced into the static solution in such a way that the equation of motion of the collective coordinates ensures that of the original field theory. As an illustration, we apply this principle to the quantization of spinning motion of the Skyrmion by incorporating the leading relativistic correction to the rigid body approximation. We calculate the decay constant and various static properties of nucleons, and find that the relativistic corrections are in the range of 5% - 20%. We also examine how the baryons deform due to the spinning motion. (author)
[en] From the abstract of contents of the 'Radiation management manual in medical field (2012),' the utilization technique of the manual is introduced. Introduced items are as follows: (1) Exposure management; exposure management for radiation medical workers, patients, and citizens in the medical field, and exposure management for radiation workers and citizens involved in the emergency work related to the Fukushima nuclear accident, (2) Health management; health management for radiation medical workers, (3) Radiation education: Education/training for radiation medical workers, and radiation education for health care workers, (4) Accident and emergency measures; emergency actions involved in the radiation accidents and radiation medicine at medical facilities
[en] We calculate the leading relativistic correction to the rigid body approximation used by Adkins and Nappi (and Witten) for the collective coordinate quantization of a Skyrmion with baryon number one. We derive a field theory solution of a spinning Skyrmion, expanding the field configuration in powers of the angular velocity, and then obtain the relativistic corrections to the decay constant and various static properties of nucleons. which amount to 5%-20%.
[en] We develop a consistent relativistic generalization of collective coordinate quantization of field theory solitons. Our principle of introducing collective coordinates is that the equations of motion of the collective coordinates ensure those of the original field theory. We illustrate this principle with the quantization of spinning degrees of freedom of Skyrmion representing baryons. We calculate the leading relativistic corrections to the static properties of nucleons, and find that the corrections are non-negligible ones of 10% to 20%.