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The 5th ARADOS Annual Meeting
TRIP international comparison among 11 thyroid
radioiodine monitoring institutions in China
Jianfeng ZHANG
E-mail:[email protected]; Tel:+86-133-9163-8287
November 6, 2019
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2019/11/26
Content
Thyroid Radioiodine Intercomparison Program(TRIP)1
Direct measurement of nuclear medicine staff2
Future research planning3
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The Thyroid Radioiodine Intercomparison Program (TRIP) provides
participating facilities with an independent means of evaluating in vivo
thyroid radioiodine measurements, using the International Atomic Energy
Agency (IAEA)/American National Standards Institute (ANSI) thyroid
calibration neck phantom (see International Commission on Radiation Units
& Measurements [ICRU] Report #48) and NIST- traceable isotopes for 125I
and 131I.
TRIP is coordinated by the Radiation Protection Functional Area and
Assurance Management Office of the Environment, Safety and Health
Directorate at Lawrence Livermore National Laboratory (LLNL) in
Livermore, CA.
LLNL established TRIP in response to requirements by ANSI N13.30,
ISO/IEC 17025 (Section 5.6.2.1.1), Department of Energy Laboratory
Accreditation Program (DOELAP), and other regulatory agencies for
participation in a suitable program of interlaboratory comparison. TRIP
intercomparison results can be used to assist participating facilities in
demonstrating compliance with federal and state regulations.
TRIP was unanimously approved by the Conference Radiation Control
Program Directors, Inc. (CRCPD) as an acceptable accreditation program.
。
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TRIP(Thyroid Radioiodine Intercomparison Program)
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TRIP(Thyroid Radioiodine Intercomparison Program)
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PHANTOM
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Sample
1018
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11 thyroid radioiodine monitoring institutions in China
1. National Institute for Radiological Protection, Chinese Center
for Disease Control and Prevention
2. Institute of Radiation Medicine, Chinese Academy of Medical
Sciences
3. Zhejiang Provincial Center for Disease Control and
Prevention
4. The Inner Mongolia Autonomous Region Comprehensive
Center for Disease Control and Prevention
5. Shenzhen Prevention and Treatment Center for
Occupational Diseases
6. Gansu Provincial Center for Disease Control and Prevention
7. Guangdong Province Hospital for Occupational Disease
Prevention and Treatment
8. Liaoning Provincial Center for Disease Control and
Prevention
9. Fujian Center for Prevention and Control of Occupational
Diseases and Chemical Poisoning
10. China Institute of Atomic Energy
11. Beijing Center for Disease Prevention and Control
A. National Institutes: 3
B. Provincial Institutes: 7
C. Municipal Institute: 1
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Measuring Equipment
Manufactor Type Quantity
Canberra INSPECTOR
1000
7
ORTEC AMTEC-100 2
BNC 940, 945 2
TARGET FieldSPEC 2
CIAE 2
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Canberra: InSpector 1000
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ORTECl: AMETEK-100
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Berkeley Nucleonics Corporation (BNC)
940 SAM III Handheld
Isotope Identifier
945 SAM III Isotope Identifier
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CIAE
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Data analysis template
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Data analysis template
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TRIP Result (I-131)
Facility code
Facility average result in
Bq
Facility average
uncertainty
in Bq
ANSI 13.30 1996
calculated bias
ANSI N13.30 2011
RMSE*
Meets ANSI 13.30
1996 acceptance
criteria
–25% to +50%
Meets ANSI
13.30 2011
acceptance
criteria RMSE
<0.25*
5 2.19E+04 2.96E+02 -0.02 0.02 yes yes
10-HPGe 2.25E+04 1.62E+03 0.01 0.01 yes yes
10-LaBr3 2.25E+04 3.35E+03 0.01 0.02 yes yes
10-NaI 2.47E+04 1.84E+03 0.11 0.11 yes yes
15 2.18E+04 4.54E+02 -0.02 0.03 yes yes
25 2.34E+04 8.56E+02 0.05 0.05 yes yes
30 NR NR NR NR NR NR
35 2.17E+04 9.69E+02 -0.03 0.03 yes yes
39 2.15E+04 4.16E+03 -0.04 0.04 yes yes
40 2.23E+04 3.38E+03 0.00 0.04 yes yes
45 1.76E+04 2.39E+02 -0.21 0.21 yes yes
50 2.05E+04 1.86E+03 -0.08 0.09 yes yes
65 2.23E+04 7.47E+02 0.00 0.04 yes yes
75-A-1 2.19E+04 2.60E+03 -0.02 0.04 yes yes
75-A-2 2.21E+04 2.40E+03 -0.01 0.01 yes yes
75-B 2.16E+04 2.34E+03 -0.03 0.03 yes yes
75-C 2.06E+04 3.10E+03 -0.08 0.08 yes yes
75-D 1.91E+04 3.96E+03 -0.14 0.15 yes yes
75-E 2.13E+04 3.70E+03 -0.04 0.08 yes yes
75-F 1.98E+04 2.53E+03 -0.11 0.13 yes yes
75-G-1 2.51E+04 5.26E+03 0.13 0.16 yes yes
75-G-2 2.30E+04 2.70E+03 0.03 0.03 yes yes
75-G-3 2.32E+04 2.33E+03 0.04 0.05 yes yes
75-H 2.10E+04 4.43E+03 -0.06 0.06 yes yes
75-I-1 2.14E+04 2.69E+03 -0.04 0.04 yes yes
75-I-2 2.37E+04 2.78E+03 0.06 0.10 yes yes
75-J 1.98E+04 1.42E+03 -0.11 0.12 yes yes
75-K 2.97E+04 3.48E+03 0.33 0.34 yes no
95 2.10E+04 1.36E+03 -0.06 0.06 yes yes
97 2.40E+04 1.19E+03 0.07 0.08 yes yes
99 2.43E+04 2.36E+02 0.09 0.09 yes yes
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TRIP Result (I-125)
Facility code
Facility
average
result in Bq
Facility average
uncertainty
in Bq
ANSI 13.30 1996
calculated bias
ANSI
N13.30 2011
RMSE*
Meets ANSI 13.30
1996 acceptance
criteria
–25% to +50%
Meets ANSI 13.30
2011 acceptance
criteria RMSE
<0.25*
5 9.83E+03 7.40E+01 0.03 0.03 yes yes
10 1.06E+04 2.40E+03 0.11 0.14 yes yes
15 8.61E+03 8.56E+01 -0.10 0.10 yes yes
25 9.59E+03 1.63E+02 0.00 0.00 yes yes
30 N.R. N.R. N.R. N.R. NR NR
35 8.92E+03 9.08E+02 -0.07 0.07 yes yes
39 9.29E+03 1.91E+03 -0.03 0.08 yes yes
40 9.78E+03 1.59E+03 0.02 0.04 yes yes
45 8.70E+03 1.00E+02 -0.09 0.09 yes yes
50 7.93E+03 4.32E+02 -0.17 0.17 yes yes
55 1.19E+04 2.48E+02 0.24 0.25 yes no
65 9.30E+03 4.82E+02 -0.03 0.03 yes yes
75-A-1 1.25E+04 1.57E+03 0.31 0.31 yes no
75-D 1.23E+04 2.58E+03 0.28 0.30 yes no
75-E 1.14E+04 1.77E+03 0.19 0.19 yes yes
75-F 7.61E+03 1.45E+03 -0.21 0.22 yes yes
75-G-1 1.08E+04 1.64E+03 0.13 0.14 yes yes
75-G-2 1.13E+04 1.46E+03 0.18 0.19 yes yes
75-G-3 9.67E+03 1.21E+03 0.01 0.01 yes yes
75-H 1.12E+04 1.37E+03 0.16 0.17 yes yes
75-I-2 9.95E+03 1.28E+03 0.04 0.04 yes yes
75-J 1.03E+04 1.26E+03 0.07 0.07 yes yes
75-K 1.08E+04 1.39E+03 0.13 0.13 yes yes
95 8.77E+03 9.16E+02 -0.08 0.09 yes yes
97 9.88E+03 4.08E+02 0.03 0.04 yes yes
99 9.16E+03 8.48E+02 -0.04 0.06 yes yes
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Radioiodine monitoring of nuclear medicine staff
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Future research planning
1. Air monitoring of radioiodine measurement
2. Measurement of other nuclides in nuclear
medicine
3. Monitoring methods of nuclear medicine
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Air monitoring in nuclear medicine
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Measurement of other nuclides in nuclear medicine
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Monitoring methods of nuclear medicine
EURADOS: ICIDOSE 2017