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1. 发明专利

JPH08248135A RADIATION DISPLAY SYSTEM 失效
公开(公告)号：JPH08248135A
公开(公告)日：1996-09-27
申请号：JP5275795
申请日：1995-03-13
申请人： TOSHIBA CORP
发明人： KONISHI AKIRA
IPC分类号： G01T1/00 , G01T1/16
摘要： PURPOSE: To obtain a radiation display system by which a signal on an area- monitor installed inside a radiation operating area is sent to a video monitor at a radiation-operating-area entrance and by which a radiation level inside the area as a radiation map is made known well to an operator in real time. CONSTITUTION: A radiation display system is a system by which, in order to decide the operatable time inside a radiation-operating-area 1 in advance, a radiation level inside the area is displayed. Contribution rates of dose equivalent rates in a plurality of evaluation points for radiation sources 2 as radiation exposure sources inside the area are computed and found in advance. A change in the intensity of the radiation sources is found by a computer 5 on the basis of the change rate of signals on a plurality of area monitors 3, and the dose equivalent rates in the evaluation points are corrected on the basis of the change. On the basis of the dose equivalent rates, a dose equivalent rate map is created in real time so as to be displayed on a video monitor 8 at a radiation- operating-area entrance 7.

2. 发明专利

JPH04309885A EVALUATING DEVICE FOR EXPOSURE QUANTITY IN WORK AREA 失效
公开(公告)号：JPH04309885A
公开(公告)日：1992-11-02
申请号：JP7292491
申请日：1991-04-05
申请人： TOSHIBA CORP
发明人： KONISHI AKIRA , MURAKAMI TOICHI
IPC分类号： G01T1/00 , G01T1/16
摘要： PURPOSE:To qualitatively evaluate the possibility of the nonuniform exposure to a main body part in a working area. CONSTITUTION:The data of each radiation dosage equivalent ratio of the head part position, breast part position, and belly part position at a point in a working room is obtained previously by a survey meter 101. The effective radiation dosage equivalent ratio at the point is calculated by a calculation means 103. A radiation dosage equivalent ratio calculating means 104 calculates the ratio between the radiation dosage equivalent ratio of the breast part position and the effective radiation dosage equivalent ratio. A display means 105 displays the distribution state of the radiation dosage equivalent ratio corresponding to the position in a working area.

3. 发明专利

JPH052079A NATURAL NUCLEAR SPECIES COMPENSATION DUST MONITOR 失效
公开(公告)号：JPH052079A
公开(公告)日：1993-01-08
申请号：JP14622591
申请日：1991-06-18
申请人： TOSHIBA CORP
发明人： KONISHI AKIRA , NOSE SATORU
IPC分类号： G01T1/167 , G01T7/00
摘要： PURPOSE:To obtain a natural unclear species compensation dust monitor which enables a small increase in concentration of radioactivity according to an artificial unclear species to be detected and abnormality, etc., of an equipment within a facility to be detected readily by eliminating an influence of a concentration of a natural nuclear species which is contained within air and its fluctuation and then measuring a net concentration of radioactivity within air for the artificial unclear species to be monitored. CONSTITUTION:A title item is provided with sample pipes 2a-2d which are placed at a plurality of locations to be measured, channel switching valves 3a-3d, a suction pump 5 and a filter paper take-up device 7 at one end of a transport pipe 4 interlocking these, and a radiation detector 8 which is provided opposite to a filter paper 6 of this filter paper take-up device 7. Furthermore, it is also provided with an operation device 9 which calculates a net counted value by storing the counter signal from a radiation detector 8 and then subtracting a counted value of a previous- stage channel, an alarm device 12 which gives an alarm according to an alarm signal from the operation device 9, a timer 10 which outputs switching commands to the operation device 9, channel switching valves 3a-3d, and the filter paper take-up device 7 at each specified amount of time, and a recording device 11 which records an operation result of the operation device 9.

4. 发明专利

JPH0384418A METHOD FOR FORMING MAP OF SPATIAL PHYSICAL QUANTITY 失效
公开(公告)号：JPH0384418A
公开(公告)日：1991-04-10
申请号：JP22251589
申请日：1989-08-29
申请人： TOSHIBA CORP
发明人： KONISHI AKIRA
IPC分类号： G01D1/00 , G01D1/02 , G01D7/00 , G01T1/16 , G21C17/00
摘要： PURPOSE:To easily form an accurate map by combining three or four adjacent points among measuring points and calculating points so that a small polygon may be formed, averaging dose equivalent factors on respective apexes so that the dose equivalent factor in an area may be calculated and displaying it with a color code. CONSTITUTION:The dose equivalent factor is measured at points a1-a19 in a radiation field and inputted in a computer. Next, by combining three or four points of the measuring points a1-a19, the polygon such as a triangle or a square is formed and respective sides are segmented at the optional length rate to provide segmenting points b1-b40. Then, the dose equivalent factor on the segmenting point is calculated with interpolation based on the value of the measuring point. The three or four adjacent points among the measuring points and the calculating points are combined to form the small polygon and the values on the apexes are averaged to calculate the dose equivalent factor in the area of the small polygon, which is displayed with the color code corresponding to the calculated factor. Thus, the accurate map is easily and rapidly formed.

5. 发明专利

JPH01107196A CARRYING-IN/DELIVERY DEVICES FOR LARGE MATTER 失效
公开(公告)号：JPH01107196A
公开(公告)日：1989-04-25
申请号：JP26265387
申请日：1987-10-20
申请人： TOSHIBA CORP
发明人： KONISHI AKIRA
IPC分类号： G21C13/02
摘要： PURPOSE:To diminish a labor load for taking out a matter, by providing a space placed outside of an inner door, having an enough capacity for housing a trailer and by providing an air feed duct, and exhaust duct and a separation valves to each duct. CONSTITUTION:A space is connected to a nuclear reactor building 1 and has both an outer door 3 and an inner door 4, and at the space, a carrying-in/delivery of a matter is conducted. In case of carrying-in of a large matter, firstly, the outer door 3 is opened and after the matter is brought in the space 2, the door 3 is closed and then the inner door 4 is opened and the matter is brought in the building 1. In case of the delivery of the matter, the reverse procedure is followed, but prior to taking out, a delivery matter is inspected for its radioactive contamination at the space 2. A carrying-in/delivery device consisting of the inner door 4, the outer door 3 and the space 2 is equipped with an air feed duct 5 and an exhaust duct 6 and also penetration of the each duct to the space are equipped with isolation valves 7 and 8, respectively. An interlock circuit 9 for an automatic closing of the valves to work in conjunction with an opening operation of the outer door 3 is provided to the valves 7 and 8. Therewith, without any deterioration of an isolation between outside and inside of a reactor facility, the inspection of radioactive contamination for take-out matters can be effectively carried out.

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