CN110288187A - A kind of calculation method of inert gas radiation dosage - Google Patents
A kind of calculation method of inert gas radiation dosage Download PDFInfo
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- 239000011261 inert gas Substances 0.000 title claims abstract description 60
- 238000004364 calculation method Methods 0.000 title claims abstract description 47
- 230000005855 radiation Effects 0.000 title claims abstract description 46
- 230000000694 effects Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910052756 noble gas Inorganic materials 0.000 claims abstract description 10
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 241000894007 species Species 0.000 claims description 5
- 241000735495 Erica <angiosperm> Species 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000011835 investigation Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 230000002285 radioactive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 210000002966 serum Anatomy 0.000 description 8
- 241000252212 Danio rerio Species 0.000 description 5
- 210000001161 mammalian embryo Anatomy 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000191 radiation effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 241000243818 Annelida Species 0.000 description 1
- 241000238421 Arthropoda Species 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000270322 Lepidosauria Species 0.000 description 1
- 238000000342 Monte Carlo simulation Methods 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003124 biologic agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 description 1
- 229910000071 diazene Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to nuclear radiation assessment technique fields, are related to a kind of calculation method of inert gas radiation dosage.The calculation method includes the following steps: that (1) discharges source item and factory site ambient environmental conditions according to the inert gas of nuclear facilities, calculates the noble gas activity activity concentration in air；(2) terrestrial activety fault is carried out around factory site, is determined and is referred to biological species；(3) the internal dose rate being subject to reference to biology is calculated according to noble gas activity activity concentration, concentration factor and the internal dose rate conversion factor in air；(4) the external irradiation dose rate being subject to reference to biology is calculated according to noble gas activity activity concentration, occupancy factor and the external irradiation dose rate conversion factor in air；(5) accumulated dose rate is calculated according to the inside and outside exposure dose rate that reference biology is subject to.Using calculation method of the invention, China's blank can be filled up, the calculation method of inert gas radiation dosage is provided.
Description
Technical field
The invention belongs to nuclear radiation assessment technique fields, are related to a kind of calculation method of inert gas radiation dosage.
Background technique
Nuclear facilities operates normally Shi Huixiang environmental emission gaseous effluent, these gaseous effluents can be to the land around factory site
Biology generates radiation effect, therefore influences to need to radiate shadow to terrestrial organism in appraisal report in each stage environment of nuclear facilities
Sound is evaluated.
More common radiation domestic at present influences the ERICA program that assessment process is the European Community (EC) exploitation, but
The program cannot calculate inert gas dose of radiation caused by terrestrial organism.And the nuclear facilities such as nuclear power plant, reprocessing plant discharge
Gaseous effluent in, the radioisotopic discharge amount of the inert gas elements such as Kr is larger with respect to other nucleic.Therefore exist
Around factory site when the radiation effect evaluation of terrestrial organism, need to calculate inert gas dose of radiation caused by terrestrial organism.
About radiation Rapid Dose Calculation, there are some reports in the prior art.
Such as Chinese patent application 201310161802.6 disclose it is a kind of based on the irradiating biological agent of serum levels of iron/serum copper
Measure evaluation method.It uses 2- (the bromo- 2- of 5- adjoins pyridine diimide) -5- diethylaminophenol (5-Br-PADAP) spectrophotometry first
The concentration of measurement irradiation mice serum iron and serum copper respectively, calculates the ratio of serum levels of iron and serum copper；Then serum is established
The dose-effect curve of iron/between serum copper and irradiation dose.
For another example Chinese patent application 201510865652.6, which discloses, a kind of carries out low dose using zebrafish embryo terateger rate
The method for measuring gamma radiation biotic warning.Using zebrafish embryo to the characteristic of low dosage gamma radiation sensitive, according to zebra fish
The dose-effect relationship between dose of radiation and terateger rate that embryo receives, by calculating different low dosage gamma radiation dosage
Under the conditions of zebrafish embryo terateger rate, act on, establish to assess low dosage gamma radiation to the comprehensive toxicity of zebrafish embryo
Biotic warning method.
But the research at present in terms of inert gas radiation Rapid Dose Calculation is less, and computation model and calculating parameter are endless
Standby, also without relevant standard criterion, this, which affects radiation, influences the development of appraisal.Therefore, it is necessary to provide one kind
The calculation method of inert gas radiation dosage makes up the evaluation of China nuclear facilities factory site surrounding biologic radiation effect in this aspect
Deficiency.
Summary of the invention
The object of the present invention is to provide a kind of calculation methods of inert gas radiation dosage, can fill up China's sky
It is white, the calculation method of inert gas radiation dosage is provided.
In order to achieve this, the present invention provides a kind of inert gas radiation dosage in the embodiment on basis
Calculation method, the calculation method include the following steps:
(1) source item and factory site ambient environmental conditions are discharged according to the inert gas of nuclear facilities, calculates the indifferent gas in air
Body activity concentration；
(2) terrestrial activety fault is carried out around factory site, is determined and is referred to biological species；
(3) according in air noble gas activity activity concentration, concentration factor and internal dose rate conversion because
Son calculates the internal dose rate being subject to reference to biology；
(4) according in air noble gas activity activity concentration, occupancy factor and external irradiation dose rate conversion because
Son calculates the external irradiation dose rate being subject to reference to biology；
(5) accumulated dose rate is calculated according to the inside and outside exposure dose rate that reference biology is subject to.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (1), inert gas discharge source item can be calculated according to the technique of nuclear facilities, and the atmospheric dispersion factor can be according to core
The discharge design parameter combination factory site ambient environmental conditions of facility are calculated.The calculating of the two parameters it is domestic it is existing at present compared with
For mature method.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (1), the calculation formula of the noble gas activity activity concentration in air is as follows:
χi=3.17 × 10-8·Qi·(X/Q)i (1)
In formula (1):
χiFor the radioactive concentration of inert gas nucleic i in ground air, unit Bq/m3；
QiFor the average annual release rate of gaseous state of inert gas nucleic i, unit Bq/a；
(X/Q)iFor inert gas nucleic i annual mean atmospheric diffusion factor, unit s/m3；
3.17×10-8For the conversion coefficient of a/s.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (2), terrestrial activety fault range can be according to " environmental impact assessment fire protection technology nuclear power plant's environment influences report
Accuse the format and content of book " (HJ808-2016) determination, investigation method can be according to domestic correlation study specification.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (2), can refer to more common radiation at present with reference to biological species influences terrestrial in assessment process ERICA
The 13 classes biology of the ecosystem.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (3) and step (4),
Concentration factor, internal dose rate conversion factor, the value of external irradiation dose rate conversion factor can refer to England
The R&D128 program of exploitation is subsidized with Wales environment authorities, the concentration factor in the program mainly passes through a large amount of document tune
Acquisition is ground, main data source is ISI (Institute for Scientific Information) database and IAEA
INIS (The International Nuclear Information System) database；
Dose rate conversion factor is mainly according to environment characteristic parameters, exposure pathways and with reference to biological characteristic parameter, benefit
It is calculated with Monte-Carlo method or empirical equation；
The radioisotopic concentration factor in the part Kr and Ar and the conversion of internal dose rate are provided in R&D128 program
The factor, external irradiation dose rate conversion factor.Occupancy factor can refer to the recommendation in radiation influence assessment process ERICA.
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (3), the internal dose rate calculation formula being subject to reference to biology is as follows:
In formula (2):
For inert gas nucleic i internal dose rate caused by biological j, unit is μ Gy/h；
Ca,iFor the aerial activity concentration of inert gas nucleic i, unit Bq/m3；
It is inert gas nucleic i in the intracorporal concentration factor of j biology, unit is (Bq/kg)/(Bq/m3)；
It is inert gas nucleic i to the internal dose rate conversion factor of biological j, unit is μ Gyh-1/
Bq·kg-1。
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (4), the external irradiation dose rate calculation formula being subject to reference to biology is as follows:
In formula (3):
For inert gas nucleic i external irradiation dose rate caused by biological j, unit is μ Gy/h；
Ca,iFor the aerial activity concentration of inert gas nucleic i, unit Bq/m3；
It is inert gas nucleic i to the external irradiation dose rate conversion factor of biological j, unit is μ Gyh-1/
Bq·kg-1。
In a preferred embodiment, the present invention provides a kind of calculation method of inert gas radiation dosage,
Wherein in step (5), the total radiation dose rate calculation formula being subject to reference to biology is as follows:
In formula (4):
For inert gas nucleic i total radiation dose rate caused by biological j, unit is μ Gy/h；
For inert gas nucleic i internal dose rate caused by biological j, unit is μ Gy/h；
For inert gas nucleic i external irradiation dose rate caused by biological j, unit is μ Gy/h.
The beneficial effects of the present invention are, can using the calculation method of inert gas radiation dosage of the invention
China's blank is filled up, the calculation method of inert gas radiation dosage is provided.
The country does not have Guidelines specification in terms of the calculation method of inert gas radiation dosage at present, and correlation is ground
Study carefully less.The present invention proposes a kind of calculation method of inert gas radiation dosage, can be completed using the calculation method lazy
Property gaseous bio dose of radiation calculating, improve the outflow of nuclear facilities gaseous state to the evaluation method of terrestrial organism radiation effect.
Detailed description of the invention
Fig. 1 is the flow chart of the calculation method of illustrative inert gas radiation dosage of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated below in conjunction with attached drawing.
The process of the calculation method of illustrative inert gas radiation dosage of the invention is as shown in Figure 1, include such as
Lower step.
The first step calculates the noble gas activity activity concentration in air.
According to the technological design of the nuclear power plant, in gaseous effluent the annual emissions of inert gas Kr-85 be 2.20 ×
1012Bq/a；According to the meteorological condition in the factory site location and discharge design parameter, guards and consider, take factory site ambient atmosphere more
Dissipate the maximum value 5.74 × 10 of the factor-7s/m3, it is 4 according to the activity concentration that Kr-85 in air is calculated in formula (1)
×10-2Bq/m3。
Second step determines and refers to biological species.
According to the factory site terrestrial Ecological Investigation special topic achievement, amphibian, birds, scavenging class arthropod, flight are chosen
Class insect, gasteropod, herbaceous plant, large mammal, small-sized class mammal of burrowing, reptile, shrub,
Annelid, 12 class of arbor are calculated.
Third step calculates Kr-85 to internal dose rate caused by reference biology.
Concentration factor and internal dose rate conversion factor refer to R&D128 program, see Tables 1 and 2 respectively.According to formula
(2) Kr-85 is calculated, 3 is shown in Table to 12 classes internal dose rate with reference to caused by biology.
4th step calculates Kr-85 to external irradiation dose rate caused by reference biology.
External irradiation dose rate conversion factor refers to R&D128 program, is shown in Table 4, Kr-85 is calculated to 12 according to formula (3)
Class external irradiation dose rate with reference to caused by biology is shown in Table 5.
5th step calculates Kr-85 to total radiation dose rate caused by reference biology.
Kr-85 is calculated according to formula (4), 6 are shown in Table to 12 classes total radiation dose rate with reference to caused by biology.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.Above embodiment only illustrates to of the invention
Bright, the present invention can also be implemented with other ad hoc fashions or other particular forms, without departing from the gist of the invention or originally
Matter feature.Therefore, the embodiment of description is regarded as illustrative and non-limiting in any way.Model of the invention
Enclosing should be illustrated by appended claims, and any variation equivalent with the intention and range of claim should also be included in the present invention
In the range of.
Claims (9)
1. a kind of calculation method of inert gas radiation dosage, which is characterized in that the calculation method includes following step
It is rapid:
(1) source item and factory site ambient environmental conditions are discharged according to the inert gas of nuclear facilities, the inert gas calculated in air is put
Penetrating property activity concentration；
(2) terrestrial activety fault is carried out around factory site, is determined and is referred to biological species；
(3) according to noble gas activity activity concentration, concentration factor and the internal dose rate conversion factor meter in air
Calculate the internal dose rate being subject to reference to biology；
(4) according to noble gas activity activity concentration, occupancy factor and the external irradiation dose rate conversion factor meter in air
Calculate the external irradiation dose rate being subject to reference to biology；
(5) accumulated dose rate is calculated according to the inside and outside exposure dose rate that reference biology is subject to.
2. calculation method according to claim 1, it is characterised in that: in step (1), inert gas discharges source item can basis
The technique of nuclear facilities is calculated, and the atmospheric dispersion factor can be according to the discharge design parameter combination factory site ambient enviroment item of nuclear facilities
Part is calculated.
3. calculation method according to claim 1, it is characterised in that: in step (1), the noble gas activity in air
The calculation formula of activity concentration is as follows:
χi=3.17 × 10-8·Qi·(X/Q)i (1)
In formula (1):
χiFor the radioactive concentration of inert gas nucleic i in ground air, unit Bq/m3；
QiFor the average annual release rate of gaseous state of inert gas nucleic i, unit Bq/a；
(X/Q)iFor inert gas nucleic i annual mean atmospheric diffusion factor, unit s/m3；
3.17×10-8For the conversion coefficient of a/s.
4. calculation method according to claim 1, it is characterised in that: in step (2), terrestrial activety fault range can
Determine that investigation method can foundation according to " format and content of environmental impact assessment fire protection technology nuclear power plant statement of the effect to be occasioned on the environment "
Domestic correlation study specification.
5. calculation method according to claim 1, it is characterised in that: in step (2), can refer at present with reference to biological species
More common radiation influences the 13 classes biology of terriecosystems in assessment process ERICA.
6. calculation method according to claim 1, it is characterised in that: in step (3) and step (4), concentration factor, interior photograph
Penetrate dose rate conversion factor, the value of external irradiation dose rate conversion factor can refer to the subsidy of England and Wales environment authorities and open
The R&D128 program of hair.
7. calculation method according to claim 1, it is characterised in that: in step (3), with reference to the biological interior irradiation agent being subject to
Dose rate calculation formula is as follows:
In formula (2):
For inert gas nucleic i internal dose rate caused by biological j, unit is μ Gy/h；
Ca,iFor the aerial activity concentration of inert gas nucleic i, unit Bq/m3；
It is inert gas nucleic i in the intracorporal concentration factor of j biology, unit is (Bq/kg)/(Bq/m3)；It is lazy
Property gas nuclide i to the internal dose rate conversion factor of biological j, unit is μ Gyh-1/Bq·kg-1。
8. calculation method according to claim 1, it is characterised in that: in step (4), with reference to the biological external exposure agent being subject to
Dose rate calculation formula is as follows:
In formula (3):
For inert gas nucleic i external irradiation dose rate caused by biological j, unit is μ Gy/h；
Ca,iFor the aerial activity concentration of inert gas nucleic i, unit Bq/m3；
It is inert gas nucleic i to the external irradiation dose rate conversion factor of biological j, unit is μ Gyh-1/Bq·kg-1。
9. calculation method according to claim 1, it is characterised in that: in step (5), with reference to the biological total irradiation agent being subject to
Dose rate calculation formula is as follows:
In formula (4):
For inert gas nucleic i total radiation dose rate caused by biological j, unit is μ Gy/h；
For inert gas nucleic i internal dose rate caused by biological j, unit is μ Gy/h；
For inert gas nucleic i external irradiation dose rate caused by biological j, unit is μ Gy/h.
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| CN111553553A (en) * | 2020-03-19 | 2020-08-18 | 中国核电工程有限公司 | Terrestrial organism concentration factor selection method and system and radiation dose calculation method |
| CN112116186A (en) * | 2020-03-20 | 2020-12-22 | 中国辐射防护研究院 | Method for selecting terrestrial reference organisms of nuclear power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111553553A (en) * | 2020-03-19 | 2020-08-18 | 中国核电工程有限公司 | Terrestrial organism concentration factor selection method and system and radiation dose calculation method |
| CN112116186A (en) * | 2020-03-20 | 2020-12-22 | 中国辐射防护研究院 | Method for selecting terrestrial reference organisms of nuclear power plant |
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