Response of AlphaGUARD PQ2000 radon detector to <sup>220</sup>Rn in diffusion mode

Fig. 10. Mathematical relationship between the response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn and wind direction under a wind speed of 0.71 m·s^-1

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Fig. 11. Mathematical relationship between the response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn and wind direction under a wind speed of 1.43 m·s^-1

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Table 1. Working parameters of ²²⁰Rn chamber at University of South China^[10]

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Table 1. Working parameters of ²²⁰Rn chamber at University of South China^[10]

工作参数 Working parameters	调控范围 Work ranges	总不确定度 Overall uncertainty
²²⁰Rn浓度²²⁰Rn concentration / Bq·m^-3	100~15 000	＜5%
风速 Wind speed / m·s^-1	0~0.3	＜10%
相对湿度 Relative humidity / %	50~90	＜2.5%
温度 Temperature / ℃	5~38	＜2.5%

Table 2. Response coefficients of AlphaGUARD PQ2000 to ²²⁰Rn at different wind speeds

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Table 2. Response coefficients of AlphaGUARD PQ2000 to ²²⁰Rn at different wind speeds

风速 Wind speed V / m·s^-1	AlphaGUARD PQ2000 ²²²Rn示值C_A AlphaGUARD PQ2000 ²²²Rn values / Bq·m^-3	²²⁰Rn室²²⁰Rn浓度C_Tn ²²⁰Rn concentration in ²²⁰Rn chamber / Bq·m^-3	响应系数R Response coefficient
0.00	567±34	11 312±1 064	0.049±0.005
0.05	648±40	14 436±215	0.044±0.003
0.16	654±44	14 237±452	0.045±0.003
0.24	775±65	14 376±502	0.053±0.005
0.50	939±40	14 251±471	0.065±0.004
0.75	1 204±46	14 348±365	0.083±0.004
1.00	1 572±102	14 299±201	0.109±0.007
1.50	1 681±39	14 383±231	0.116±0.003
2.00	1 797±110	14 274±429	0.125±0.008
2.50	1 804±84	14 327±236	0.125±0.006
3.00	1 762±98	14 218±584	0.123±0.008
3.50	1 815±116	14 304±482	0.126±0.009

Table 3. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for various wind directions under a wind speed of 0.71 m·s^-¹

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Table 3. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for various wind directions under a wind speed of 0.71 m·s^-¹

风向角度θ Wind direction / (°)	AlphaGUARD PQ2000 ²²²Rn示值C_A AlphaGUARD PQ2000 ²²²Rn values / Bq·m^-3	²²⁰Rn室²²⁰Rn浓度C_Tn ²²⁰Rn concentration in ²²⁰Rn chamber / Bq·m^-3	响应系数R Response coefficient R
0	1 182±51	14 255±469	0.082±0.004
45	1 090±89	14 164±325	0.076±0.006
90	998±104	14 236±382	0.070±0.008
135	817±40	14 107±416	0.057±0.003
180	737±79	14 193±554	0.051±0.006

Table 4. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for different wind directions under a wind speed of 1.43 m·s^-1

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Table 4. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for different wind directions under a wind speed of 1.43 m·s^-1

风向角度θ Wind direction θ/ (°)	AlphaGUARD PQ2000示值(C_A) AlphaGUARD PQ2000 values (C_A) / Bq·m^-3	²²⁰Rn室²²⁰Rn浓度C_Tn ²²⁰Rn concentration in ²²⁰Rn chamber / Bq·m^-3	响应系数R Response coefficient R
0	1 645±139	14 304±424	0.115±0.010
45	1 572±78	14 421±365	0.109±0.006
90	1 388±145	14 312±247	0.097±0.010
135	1 309±116	14 547±183	0.090±0.008
180	1 062±83	14 493±216	0.073±0.006

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Yasong XIAO, Zhengzhong HE, Kexin WANG, Jialu FENG, Lidan LYU. Response of AlphaGUARD PQ2000 radon detector to ²²⁰Rn in diffusion mode[J]. NUCLEAR TECHNIQUES, 2024, 47(10): 100402

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Paper Information

Category: NUCLEAR ELECTRONICS AND INSTRUMENTATION

Received: Nov. 23, 2023

Accepted: --

Published Online: Dec. 13, 2024

The Author Email: HE Zhengzhong (HEZhengzhong)

DOI:10.11889/j.0253-3219.2024.hjs.47.100402

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Working parameters of 220Rn chamber at University of South China[10]

Table 1. Working parameters of 220Rn chamber at University of South China[10]

Table 2. Response coefficients of AlphaGUARD PQ2000 to 220Rn at different wind speeds

Table 2. Response coefficients of AlphaGUARD PQ2000 to 220Rn at different wind speeds

Table 3. Response coefficient of AlphaGUARD PQ2000 to 220Rn for various wind directions under a wind speed of 0.71 m·s-1

Table 3. Response coefficient of AlphaGUARD PQ2000 to 220Rn for various wind directions under a wind speed of 0.71 m·s-1

Table 4. Response coefficient of AlphaGUARD PQ2000 to 220Rn for different wind directions under a wind speed of 1.43 m·s-1

Table 4. Response coefficient of AlphaGUARD PQ2000 to 220Rn for different wind directions under a wind speed of 1.43 m·s-1

Table 1. Working parameters of ²²⁰Rn chamber at University of South China^[10]

Table 1. Working parameters of ²²⁰Rn chamber at University of South China^[10]

Table 2. Response coefficients of AlphaGUARD PQ2000 to ²²⁰Rn at different wind speeds

Table 2. Response coefficients of AlphaGUARD PQ2000 to ²²⁰Rn at different wind speeds

Table 3. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for various wind directions under a wind speed of 0.71 m·s^-¹

Table 3. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for various wind directions under a wind speed of 0.71 m·s^-¹

Table 4. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for different wind directions under a wind speed of 1.43 m·s^-1

Table 4. Response coefficient of AlphaGUARD PQ2000 to ²²⁰Rn for different wind directions under a wind speed of 1.43 m·s^-1