Dose coefficient estimation for terrestrial <i>Sphingonotus</i> insects near nuclear facilities in Northwest China

Wenjing GONG; Chao ZHANG; Sheng ZHANG; Huijuan WANG; Qiao CAO; Han YUAN; Jianguo LI; Baohua HAN

doi:10.11889/j.1000-3436.2022-0049

Journal of Radiation Research and Radiation Processing, Volume. 40, Issue 6, 060702(2022)

Dose coefficient estimation for terrestrial Sphingonotus insects near nuclear facilities in Northwest China

Wenjing GONG, Chao ZHANG, Sheng ZHANG, Huijuan WANG, Qiao CAO, Han YUAN, Jianguo LI^*, and Baohua HAN

Author Affiliations

China Institute for Radiation Protection, Taiyuan 030006, China

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Figures & Tables(13)

Fig. 1. Diagram (a) and anatomical map (b) of the Splingonotus

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Fig. 2. Graphic model of the simplified anatomy model of the Splingonotus: (a) internal structure diagram; (b) external structure drawing

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Fig. 3. Sectional drawing of the px=0 (a), py=0 (b), and pz=0 (c) of the Splingonotus

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Fig. 4. CT fault sequence image of the Splingonotus: (a) CT fault sequence image of the Splingonotus in PS adjusted; (b) CT fault sequence image of the identified and segmented part of the Splingonotus

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Fig. 5. Sectionalview of the voxel model of the Splingonotus

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Fig. 6. Schematic diagram of external radiation source calculation

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Fig. 7. External exposure dose coefficients of ⁹⁰Sr (a) and ¹³⁷Cs (b) of the simplified anatomy model of the Splingonotus(μGyh^-1/Bqm^-3)

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Fig. 8. External exposure dose coefficients of ⁹⁰Sr (a) and ¹³⁷Cs (b) of the voxel model of the Splingonotus（μGyh^-1/Bqm^-3）

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Table 1. Geometrical parameter of the simplified anatomy model of the Splingonotus

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Table 1. Geometrical parameter of the simplified anatomy model of the Splingonotus

组织/器官

Tissue/organ

几何形状

Geometrical shape

曲面方程(长、宽、高=X、Y、Z)

Equation of surface (Long, wide and high=X, Y, Z)

头

Head

椭圆壳

Elliptical shell

\frac{{(x + 1.494)}^{2}}{0 . 15^{2}} + \frac{y^{2}}{0 . 249^{2}} + \frac{z^{2}}{0 . 484^{2}} \leq 1

;

\frac{{(x + 1.494)}^{2}}{0 . 05^{2}} + \frac{y^{2}}{0 . 149^{2}} + \frac{z^{2}}{0 . 284^{2}} \geq 1

胸

Baenosome

圆柱壳

Cylindrical shell

y^{2} + z^{2} - 0 . 4895^{2} \leq 0

;

y^{2} + z^{2} - 0 . 4675^{2} \geq 0

;

- 1.344 < x < 0

腹

Abdomen

圆锥壳

Conical shell

\sqrt[]{y^{2} + z^{2}} + 0.1546 (x - 3.1666) \leq 0

;

\sqrt[]{y^{2} + z^{2}} + 0.1546 (x - 3.0243) \geq 0

;

0 < x < 2.717

胃

Craw

圆柱体

Cylinder

y^{2} + z^{2} - 0 . 1^{2} \leq 0

消化道

Digestive tract

圆柱体

Cylinder

y^{2} + z^{2} - 0 . 186^{2} \leq 0

;

0.2 < x < 2.7

卵巢

Ootheca

椭球体

Spheroid

\frac{{(x - 1.016)}^{2}}{1 . 006^{2}} + \frac{{(y - 0.254)}^{2}}{0 . 1^{2}} + \frac{z^{2}}{0 . 2^{2}} - 1 \leq 0

;

\frac{{(x + 1.016)}^{2}}{1 . 006^{2}} + \frac{{(y + 0.254)}^{2}}{0 . 1^{2}} + \frac{z^{2}}{0 . 2^{2}} - 1 \leq 0

Table 2. CT fault sequence image parameters of the voxel model of the Splingonotus

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Table 2. CT fault sequence image parameters of the voxel model of the Splingonotus

组织/器官 Tissue/organ	体素个数 The number of voxel	体积 / cm³ Volume	密度 / g·cm^-3 Density	质量 / g Mass
外骨骼 Exoskeleton	300 548	1.88	1.36	2.55
消化器官 Digestive organs	27 352	1.71×10^-1	8.84×10^-1	1.51×10^-1
生殖器官 Reproductive organ	17 358	1.09×10^-1	9.87×10^-1	1.07×10^-1
其他组织 Other organizations	16 639	1.04×10^-1	9.34×10^-1	9.71×10^-2
外部空气 Air	27 392 076	1.71×10²	1.29×10^-3	2.21×10^-1
总计 Total	27 753 973	1.74×10²	-	2.90

Table 3. Internal exposure dose coefficients of the simplified anatomy model of the Splingonotus

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Table 3. Internal exposure dose coefficients of the simplified anatomy model of the Splingonotus

放射性核素 Radionuclide	靶器官 Target organ	源器官Source organ
放射性核素 Radionuclide	靶器官 Target organ	生殖器官 Reproductive organ	其他组织 Other organizations	外骨骼 Exoskeleton	消化器官 Digestive organs
⁹⁰Sr	外骨骼Exoskeleton	1.76×10^-4	1.92×10^-6	6.85×10^-7	1.05×10^-6
	消化器官Digestive organs	1.05×10^-3	2.55×10^-4	8.52×10^-5	8.15×10^-7
	生殖器官Reproductive organ	1.22×10^-4	2.67×10^-5	3.62×10^-4	1.41×10^-5
	其他组织Other organizations	2.50×10^-4	3.42×10^-7	1.87×10^-5	2.69×10^-4
	合计Total	1.60×10^-3	2.84×10^-4	4.67×10^-4	2.85×10^-4
	平均值Mean value	6.59×10^-4
¹³⁷Cs	外骨骼Exoskeleton	7.39×10^-5	2.96×10^-7	2.71×10^-8	2.51×10^-8
	消化器官Digestive organs	1.57×10^-4	9.37×10^-5	1.71×10^-6	1.57×10^-7
	生殖器官Reproductive organ	4.90×10^-6	5.36×10^-7	1.01×10^-4	2.47×10^-7
	其他组织Other organizations	6.00×10^-6	6.64×10^-8	3.28×10^-7	9.66×10^-5
	合计Total	2.42×10^-4	9.46×10^-5	1.03×10^-4	9.70×10^-5
	平均值Mean value	1.34×10^-4

Table 4. Internal exposure dose coefficients of the voxel model of the Splingonotus

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Table 4. Internal exposure dose coefficients of the voxel model of the Splingonotus

放射性核素 Radionuclide	靶器官 Target organ	源器官Source organ
放射性核素 Radionuclide	靶器官 Target organ	外骨骼 Exoskeleton	消化器官 Digestive organs	生殖器官 Reproductive organ	其他组织 Other organizations
⁹⁰Sr	外骨骼 Exoskeleton	4.47×10^-4	3.47×10^-6	4.56×10^-6	6.69×10^-6
	消化器官Digestive organs	2.41×10^-4	4.93×10^-4	6.01×10^-5	5.39×10^-5
	生殖器官Reproductive organ	3.43×10^-4	6.59×10^-5	4.23×10^-4	2.63×10^-6
	其他组织Other organizations	5.88×10^-4	6.88×10^-5	3.01×10^-6	3.42×10^-4
	合计Total	1.62×10^-3	6.31×10^-4	4.91×10^-4	4.05×10^-4
	平均值Mean value	7.87×10^-4
¹³⁷Cs	外骨骼Exoskeleton	1.07×10^-4	3.57×10^-7	3.46×10^-7	5.78×10^-7
	消化器官Digestive organs	2.50×10^-5	1.08×10^-4	4.00×10^-6	3.76×10^-6
	生殖器官Reproductive organ	2.67×10^-5	4.45×10^-6	1.04×10^-4	4.52×10^-7
	其他组织Other organizations	5.13×10^-5	4.83×10^-6	5.56×10^-7	9.17×10^-5
	合计Total	2.10×10^-4	1.18×10^-4	1.09×10^-4	9.65×10^-5
	平均值Mean value	1.33×10^-4

Table 5. Calculation result of the simplified anatomy model and voxel model of the Splingonotus is compared with the result of the ICRP 108 publications

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Table 5. Calculation result of the simplified anatomy model and voxel model of the Splingonotus is compared with the result of the ICRP 108 publications

计算方法 Computing method	⁹⁰Sr		¹³⁷Cs
计算方法 Computing method	内照射 Internal exposure	外照射 External exposure	内照射 Internal exposure	外照射 External exposure
简化解剖学模型 Simplified anatomical models	6.59×10^-4	6.74×10^-4	1.34×10^-4	4.40×10^-3
体素模型Voxel model	7.87×10^-4	6.74×10^-4	1.33×10^-4	3.51×10^-3
ICRP 108号出版物 ICRP Publication 108	1.00×10^-2	3.90×10^-10	3.20×10^-3	2.80×10^-3

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Wenjing GONG, Chao ZHANG, Sheng ZHANG, Huijuan WANG, Qiao CAO, Han YUAN, Jianguo LI, Baohua HAN. Dose coefficient estimation for terrestrial Sphingonotus insects near nuclear facilities in Northwest China[J]. Journal of Radiation Research and Radiation Processing, 2022, 40(6): 060702

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Paper Information

Category: Research Articles

Received: Apr. 26, 2022

Accepted: Jun. 13, 2022

Published Online: Jan. 4, 2023

The Author Email: LI Jianguo (lijianguo@cirp.org.cn)

DOI:10.11889/j.1000-3436.2022-0049

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology