CN109613587B - Radiation detection system - Google Patents
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- CN109613587B CN109613587B CN201811528481.8A CN201811528481A CN109613587B CN 109613587 B CN109613587 B CN 109613587B CN 201811528481 A CN201811528481 A CN 201811528481A CN 109613587 B CN109613587 B CN 109613587B
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Abstract
The invention relates to a radiation detection system, in particular to a radiation monitoring system, which solves the problem that the radiation in a CT room cannot be timely perceived when the radiation in the CT room exceeds standard. The invention has the effects that when the radiation intensity is detected to be higher than the safe radiation intensity, the warning unit can warn and remind workers to leave, so that the harm of radiation to the workers is reduced.
Description
Technical Field
The invention relates to a radiation monitoring system, in particular to a radiation detection system.
Background
An electronic computed tomography scanner, also called a computer tomography or computer tomography, is known by the english name ComputedTomography, which we generally call CT. CT uses a precisely collimated X-ray beam together with a highly sensitive detector to scan the cross-section of a human body one by one around a certain part, has the characteristics of fast scanning time, clear image, and the like, and can be used for the examination of various diseases.
In CT, a certain thickness of a layer of a human body is scanned by X-ray beams, and the X-rays transmitted through the layer are received by a detector, converted into visible light, converted into electrical signals by photoelectric conversion, converted into digital signals by an analog/digital converter (analog/digital converter), and input to a computer for processing.
The CT scanner includes a radiation source and a radiation device. Where the radioactive source is a radioactive material that is permanently sealed in a container or tightly clad and in a solid state, except for materials that are used in the research reactor and power reactor nuclear fuel cycle categories. The radiation devices include X-ray machines, accelerators, neutron generators, and devices containing radioactivity.
In a hospital, the restart of the electronic computed tomography scanner often requires a certain time, and in order to improve the detection efficiency, the electronic computed tomography scanner is usually in a normally open state. When a ray device in the CT is damaged, a large amount of radiation may leak out, and workers entering a CT room often cannot directly detect radiation changes, and the long-term exposure in the environment affects the health of the workers, so that certain improvement space exists.
Disclosure of Invention
The invention aims to provide a radiation detection system which has the effects that when the radiation intensity is detected to be higher than the safe radiation intensity, a warning unit can warn and remind workers to leave, so that the injury of radiation to the workers is reduced.
The technical purpose of the invention is realized by the following technical scheme:
a radiation detection system comprises a CT room and an electronic computer tomography scanner arranged in the CT room, wherein the electronic computer tomography scanner is arranged at the central position of the CT room, and the radiation detection system further comprises a radiation detection device, a central processing unit and a warning device which are arranged in the CT room and used for detecting the intensity of radiation in the CT room.
If the radiation intensity detected by the radiation detection device is within a safety radiation intensity range preset by the central processing unit, the central processing unit controls the warning device not to warn; otherwise, the central processing unit controls the warning device to warn.
By adopting the scheme, the radiation intensity emitted by the CT indoor electronic computer tomography scanner can be monitored in real time through the radiation detection device, when the radiation intensity is detected to be higher than the safe radiation intensity, the warning device can warn and remind indoor personnel of leaving in time, so that the harm of radiation to indoor personnel is reduced.
Preferably, the system also comprises a responsible person mobile phone number database storing the corresponding responsible person mobile phone number of the electronic computed tomography scanner and a short message sending device;
if the radiation intensity detected by the radiation detection device exceeds the preset safe radiation intensity range of the central processing unit and is lower than the preset limit radiation intensity of the central processing unit, the central processing unit is used for judging the change state of the radiation value detected by the radiation detection device in unit time and enabling the radiation value detected by the radiation detection device to be in an increase state, and when the warning device is controlled to warn, the corresponding mobile phone number of the responsible person is taken out from the mobile phone number database of the responsible person and is notified through the short message sending device.
By adopting the scheme, the corresponding responsible person can be timely notified in a short message form when the radiation is strong through the arrangement of the responsible person mobile phone number database and the short message sending device.
Preferably, the system also comprises a voice notification module;
when the radiation intensity detected by the radiation detection device is higher than the safe radiation intensity and lower than the limit radiation intensity, the central processing unit records the radiation value currently detected by the radiation detection device after an equal time t, the radiation value is sequentially recorded as I1, I2, I3 and I4 … … In, and the group of data is plotted as a curve S of the radiation value changing along with the time;
the central processing unit makes a difference between adjacent radiation values In the curve S, namely the difference value d = I (n + 1) -In, and divides the difference value d by the time interval t to obtain the slope kn of the curve S In the unit time t, and the central processing unit judges the value of the average slope kn;
if the slopes k 1-kn are in an increasing trend and the minimum slope k exceeds 0, the central processing unit starts a voice notification module to perform voice notification on the corresponding responsible person and simultaneously closes the electronic computer tomography scanner;
if the slopes k1 to kn are in a decreasing trend and the slope is less than 0, the central processing unit only reminds through the short message sending device.
By adopting the scheme, the change condition of the radiation intensity can be effectively acquired through the central processing unit and the radiation detection device, a proper notification mode is selected according to the change condition of the radiation intensity, and when the increase amplitude of the radiation intensity continuously rises, a more thorough notification is carried out through the voice notification module.
Preferably, the device also comprises a time calculation device;
if the radiation intensity detected by the radiation detection device is higher than the safe radiation intensity and lower than the limit radiation intensity, and the slopes kn are the same and less than 0, the central processing unit takes the absolute value of the difference value between the currently calculated radiation intensity and the maximum safe radiation intensity preset by the central processing unit as a dividend, and the slope kn as a divisor, calculates the required time and loads the required time in the short message sent to the responsible person.
By adopting the scheme, the time required for reaching the safe radiation intensity can be calculated by setting the time calculating device when the radiation intensity detected by the radiation detecting device is in a descending state and the descending trend is unchanged, and the time is notified to a responsible person in a form of a short message.
Preferably, the system further comprises a database for storing reasons ai corresponding to the problem that the CT indoor radiation intensity increases continuously, the occurrence probability bi of the corresponding problem and the time ci required for solving the corresponding problem, wherein a mobile phone tracker is arranged on the mobile phone of the definition responsible person, and the radiation detection system further comprises a route planning device;
if the slopes k1 to kn are in an increasing trend and the minimum slope k exceeds 0, the central processing unit calls the problem of continuously increasing the increasing trend of the radiation intensity in the corresponding CT room in the database of the problem of over-radiation intensity, the probability of the occurrence of the corresponding problem and the time required for solving the corresponding problem, wherein the calculation formula of the overall processing time of the problem is as follows: t = b1 × c1+ … bi ci;
meanwhile, the central processing unit takes the mobile phone number of the responsible person as an inquiry object to inquire the position of the corresponding responsible person in the mobile phone tracker as a starting point, the CT room as an end point, the shortest route is planned by the route planning device, the shortest route is taken as a dividend, the average walking speed of the corresponding responsible person preset by the central processing unit is taken as a divisor, the time of the corresponding responsible person reaching the CT room is calculated, and the central processing unit loads the short message informing the corresponding responsible person by taking the sum of the overall problem processing time T and the time of the corresponding responsible person reaching the CT room as the overall time required by processing the over-strong radiation.
By adopting the scheme, the time for the staff to reach the CT room can be planned through the central processing unit and the travel planning device, the maintenance time of the staff is correspondingly considered comprehensively, and the time required by completing maintenance of the subsequent CT room can be predicted in the current time period.
Preferably, the radiation detection devices are provided with a plurality of radiation detection devices, the plurality of radiation detection devices are arranged on the inner side wall of the CT room in a surrounding mode at intervals, and each radiation detection device is coupled with an indicator;
the central processing unit compares the radiation values detected by each radiation detection device, calculates the position corresponding to the radiation detection device with the maximum radiation value, and controls the indicator corresponding to the radiation detection device to indicate.
By adopting the scheme, the position of the maximum radiation value can be detected to roughly judge the direction in which the electronic computer tomography scanner leaks, and the position is indicated by the indicator on the corresponding radiation detection device, so that maintenance personnel can maintain conveniently.
Preferably, the warning unit is a sounding alarm.
By adopting the scheme, the sounding alarm is more striking, and the attention of workers is easier to arouse, so that the warning effect of the warning unit is improved.
Preferably, the indicator is a light-emitting alarm.
By adopting the scheme, the luminous alarm can be identified through vision, so that the luminous alarm and the sounding alarm of the warning unit are well distinguished, and confusion is avoided.
In conclusion, the invention has the following beneficial effects: radiation intensity that can real-time supervision CT indoor electron computer tomography scanner send through radiation detection device, when detecting that radiation intensity is higher than safe radiation intensity, warning device can warn to and remind the staff to leave in time, thereby reduce the injury of radiation to the staff.
Drawings
FIG. 1 is a schematic diagram of a CT room according to the present invention.
Fig. 2 is a system block diagram one of a radiation detection system.
Fig. 3 is a system block diagram two of the radiation detection system.
In the figure, 1, CT room; 2. an electronic computed tomography scanner; 3. a radiation detection device; 4. a central processing unit; 5. a warning device; 6. a database of phone numbers of responsible persons; 7. a short message sending device; 8. a voice notification module; 9. a time calculation device; 10. a database of over-radiance issues; 11. a trip planning device; 12. an indicator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a radiation detecting system disclosed in the present invention, as shown in fig. 1, includes a CT room 1 and an electronic computed tomography scanner 2 disposed in the CT room 11, wherein the electronic computed tomography scanner 2 is disposed at a central position of the CT room 1.
As shown in fig. 2, the radiation detection system further includes a radiation detection device 3 disposed in the CT room 1 for detecting the intensity of radiation in the CT room 1, a central processing unit 4, and a warning device 5, wherein the radiation monitoring device is preferably a radiation detector disposed in the CT room 11 for detecting the intensity of radiation in the CT room 1.
The warning device 5 is a sounding alarm, and when the radiation intensity detected by the radiation detection device 3 is within a safety radiation intensity range preset by central processing, the central processing unit 4 controls the warning device 5 not to warn; otherwise, the central processing unit 4 controls the warning device 5 to warn.
Further considering that the radiation detection device 3 installed indoors can detect radiation more effectively, the radiation detection device 3 is provided with a plurality of radiation detection devices 3 which are arranged around the inner side wall of the CT room 1 at intervals, each radiation detection device 3 is coupled with an indicator 12, and the indicator 12 is preferably a luminous alarm.
The specific application process is as follows: the central processing unit 4 compares the radiation values detected by each radiation detection device 3, calculates the position corresponding to the radiation detection device 3 with the maximum radiation value, and controls the indicator 12 corresponding to the radiation detection device 3 to indicate.
In further consideration of timely informing the corresponding responsible person when the radiation in the CT room 1 is too high, the radiation monitoring system further includes a responsible person mobile phone number database 6 storing the corresponding responsible person mobile phone number of the electronic computed tomography scanner 2, and a short message sending device 7, wherein the short message sending device 7 is preferably a short message alarm.
The specific application process is as follows: if the radiation intensity detected by the radiation detection device 3 exceeds the safety radiation intensity range preset by the central processing unit 4 and is lower than the limit radiation intensity preset by the central processing unit 4, the central processing unit 4 is used for judging the change state of the radiation value detected by the radiation detection device 3 in unit time and the radiation value detected by the radiation detection device 3 is in an increase state, and when the warning device 5 is controlled to warn, the corresponding mobile phone number of the responsible person is called out from the mobile phone number database 6 of the responsible person and is notified through the short message sending device 7.
Further considering that the user can be informed in time when the radiation change in the CT room 1 is large, the radiation detection system further includes a voice informing module 8.
The specific application process is as follows: when the radiation intensity detected by the radiation detection device 3 is higher than the safe radiation intensity and lower than the limit radiation intensity, the cpu 4 records the radiation value currently detected by the radiation detection device 3 after an equal time interval t, sequentially as I1, I2, I3, I4 … … In, and plots the set of data as a curve S of the change of the radiation value with time.
The central processing unit 4 makes a difference between adjacent radiation values In the curve S, that is, the difference d = I (n + 1) -In, and divides the difference d by the time interval t to obtain the slope kn of the curve S In the unit time t, and the central processing unit 4 determines the value of the average slope kn.
If the slopes k1 to kn are in an increasing trend and the minimum slope k exceeds 0, the central processor 4 activates the voice notification module 8 to perform voice notification on the corresponding responsible person, and simultaneously turns off the electronic computed tomography scanner 2.
If the slopes k1 to kn are in a decreasing trend and the slope is smaller than 0, the central processing unit 4 only reminds through the short message sending device 7.
As shown in fig. 3, the radiation detection system further includes a time calculation device 9, considering that when the slopes kn are all the same and less than 0, the required time can be effectively calculated and notified to the corresponding user.
The specific process is as follows: when the radiation intensity detected by the radiation detection device 3 is higher than the safe radiation intensity and lower than the limit radiation intensity, and the slopes kn are the same and less than 0, the central processing unit 4 takes the absolute value of the difference between the currently calculated radiation intensity and the maximum safe radiation intensity preset by the central processing unit 4 as a dividend, and the slope kn as a divisor, calculates the required time, and loads the required time in the short message sent to the responsible person.
Further considering that when the situation of continuous increase of radiation occurs, the radiation detection system can inform other people of the prediction of the required maintenance time of the corresponding responsible person, the radiation detection system further comprises a database 10 for storing the reason ai of the continuous enhancement problem of the radiation intensity increasing trend in the corresponding CT room 1, the occurrence probability bi of the corresponding problem and the time ci required for solving the corresponding problem, a mobile phone tracker is arranged on the mobile phone of the defined responsible person, and the radiation detection system further comprises a route planning device 11.
The specific application process is as follows: if the slopes k1 to kn are in the increasing trend and the minimum slope k exceeds 0, the central processing unit 4 retrieves the problem with continuously increasing radiation intensity trend in the corresponding CT room 1, the probability of the occurrence of the corresponding problem, and the time required for solving the corresponding problem in the database 10 of the over-radiation problem, wherein the overall processing time of the problem is calculated as follows: t = b1 × c1+ … bi ci.
Meanwhile, the central processing unit 4 takes the phone number of the responsible person as an inquiry object to inquire the position of the corresponding responsible person in the mobile phone tracker as a starting point, the CT room 1 as an end point, the shortest route is planned through the route planning device 11, the shortest route is taken as a dividend, the average walking speed of the corresponding responsible person preset by the central processing unit 4 is taken as a divisor, the time of the corresponding responsible person reaching the CT room 1 is calculated, and the central processing unit 4 loads the short message informing the corresponding responsible person by taking the sum of the problem overall processing time T and the time of the corresponding responsible person reaching the CT room 1 as the overall time required for processing the over-strong radiation.
The implementation principle of the embodiment is as follows:
the radiation condition in the CT room 1 is detected through the radiation detection device 3 arranged in the CT room 1, and the user can be warned in time through the warning device 5 when the radiation intensity is overlarge in combination with the comparison of the central processing unit 4. And meanwhile, the user can be informed in time through the phone number database 6 and the short message sending device 7 of the responsible person.
When the radiation intensity changes greatly, the time required for solving the over-radiation problem can be informed to others by combining the central processing unit 4, the time calculation device 9, the over-radiation problem database 10 and the journey planning device 11.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (4)
1. A radiation detection system comprises a CT room (1) and an electronic computed tomography scanner (2) placed in the CT room (1), wherein the electronic computed tomography scanner (2) is arranged at the central position of the CT room (1) and is characterized in that: the radiation detection system also comprises a radiation detection device (3) which is arranged in the CT room (1) and is used for detecting the intensity of radiation in the CT room (1), a central processing unit (4) and a warning device (5);
if the radiation intensity detected by the radiation detection device (3) is within a safety radiation intensity range preset by the central processing unit, the central processing unit (4) controls the warning device (5) not to warn; otherwise, the central processing unit (4) controls the warning device (5) to warn;
the system also comprises a responsible person mobile phone number database (6) which stores the corresponding responsible person mobile phone number of the electronic computed tomography scanner (2), and a short message sending device (7);
if the radiation intensity detected by the radiation detection device (3) exceeds a safety radiation intensity range preset by the central processing unit (4) and is lower than the limit radiation intensity preset by the central processing unit (4), the central processing unit (4) is used for judging the change state of the radiation value detected by the radiation detection device (3) in unit time and the radiation value detected by the radiation detection device (3) is in an increase state, and when the warning device (5) is controlled to warn, the corresponding mobile phone number of the responsible person is called out by the mobile phone number database (6) of the responsible person and is notified by the short message sending device (7);
also comprises a voice notification module (8);
when the radiation intensity detected by the radiation detection device (3) is higher than the safe radiation intensity and lower than the limit radiation intensity, the central processing unit (4) records the currently detected radiation value of the radiation detection device (3) after every equal time t, and the currently detected radiation value is sequentially recorded as I1, I2, I3 and I4 … … In, and the group of data is plotted as a curve S of the change of the radiation value along with the time;
the central processing unit (4) makes a difference between adjacent radiation values In the curve S, namely the difference d = I (n + 1) -In, and divides the difference d by the time interval t to obtain the slope kn of the curve S In the unit time t, and the central processing unit (4) judges the value of the average slope kn;
if the slopes k 1-kn are in an increasing trend and the minimum slope k exceeds 0, the central processing unit (4) starts a voice notification module (8) to perform voice notification on the corresponding responsible person and simultaneously turns off the electronic computed tomography scanner (2);
if the slopes k 1-kn are in a decreasing trend and the slope is smaller than 0, the central processing unit (4) only reminds through the short message sending device (7);
the system also comprises a database (10) for storing reasons ai corresponding to the problem that the radiation intensity in the CT room (1) is increased continuously, the occurrence probability bi of the corresponding problem and the time ci required for solving the corresponding problem, wherein a mobile phone tracker is arranged on the mobile phone of a defined responsible person, and the radiation detection system also comprises a route planning device (11);
if the slopes k1 to kn are in an increasing trend and the minimum slope k exceeds 0, the central processing unit (4) calls the problem of continuously increasing radiation intensity trend in the corresponding CT room (1) in the database (10) of the over-radiation problem, the probability of the occurrence of the corresponding problem and the time required for solving the corresponding problem, wherein the calculation formula of the overall processing time of the problem is as follows: t = b1 × c1+ … bi ci;
meanwhile, the central processing unit (4) takes the mobile phone number of the responsible person as a query object to query the position of the corresponding responsible person in the mobile phone tracker as a starting point, the CT room (1) as an end point, the shortest route is planned through the route planning device (11), the shortest route is taken as a dividend, the average walking speed of the corresponding responsible person preset by the central processing unit (4) is taken as a divisor, the time of the corresponding responsible person reaching the CT room (1) is calculated, and the central processing unit (4) loads the short message for informing the corresponding responsible person by taking the sum of the overall problem processing time T and the time of the corresponding responsible person reaching the CT room (1) as the overall time required by processing over-strong radiation.
2. The radiation detection system of claim 1, wherein: further comprising time calculation means (9);
if the radiation intensity detected by the radiation detection device (3) is higher than the safe radiation intensity and lower than the limit radiation intensity, and the slopes kn are the same and less than 0, the central processing unit (4) takes the absolute value of the difference between the currently calculated radiation intensity and the maximum safe radiation intensity preset by the central processing unit (4) as a dividend, and the slope kn as a divisor, calculates the required time and loads the required time in a short message sent to a responsible person.
3. The radiation detection system of claim 1, wherein: the radiation detection devices (3) are arranged in a plurality, the radiation detection devices (3) are arranged on the inner side wall of the CT room (1) in a surrounding mode at intervals, and an indicator (12) is coupled to each radiation detection device (3);
the central processing unit (4) compares the radiation values detected by each radiation detection device (3), calculates the position corresponding to the radiation detection device (3) with the maximum radiation value, and controls the indicator (12) corresponding to the radiation detection device (3) to indicate.
4. The radiation detection system of claim 3, wherein: the indicator (12) is a luminous alarm.
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| CN201811528481.8A CN109613587B (en) | 2018-12-13 | 2018-12-13 | Radiation detection system |
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| CN105361900B (en) * | 2014-08-26 | 2019-01-22 | 北京纳米维景科技有限公司 | Static CT imaging system and its image formation control method in real time |
| CN107167830B (en) * | 2017-03-25 | 2019-02-26 | 浙江君安检测技术有限公司 | A kind of radiation monitoring system based on CT scan device |
| CN106890001B (en) * | 2017-03-25 | 2020-10-23 | 浙江君安检测技术有限公司 | Radiation detection system based on electronic computer tomography scanner |
| CN108537784B (en) * | 2018-03-30 | 2021-08-24 | 四川元匠科技有限公司 | CT image pulmonary nodule detection method based on deep learning |
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