Thông tư 24/2010/TT-BKHCN Quy chuẩn kỹ thuật quốc gia An toàn bức xạ

• Số hiệu: 24/2010/TT-BKHCN
• Loại văn bản: Thông tư
• Nơi ban hành: Bộ Khoa học và Công nghệ
• Người ký: Lê Đình Tiến
• Ngày ban hành: 29/12/2010

MINISTRY OF SCIENCE AND TECHNOLOGY --------	SOCIALIST REPUBLIC OF VIET NAM Independence - Freedom – Happiness ----------------
No.: 24/2010/TT-BKHCN	Ha Noi, December 29, 2010

CIRCULAR

ISSUING AND IMPLEMENTING OF "NATIONAL TECHNICAL REGULATIONS OF RADIATION SAFETY - CATEGORIZATION AND CLASSIFYING RADIOACTIVE SOURCE"

Pursuant to the Atomic Energy Law of June 3, 2008;

Pursuant to the Law on Standards and Technical Regulations of June 29, 2006 and Decree No. 127/2007/ND-CP of August 1, 2007 of the Government detailing the implementation of a number of articles of the Law on Standards and Technical Regulations;

Pursuant to Decree No. 28/2008/ND-CP of March 14, 2008 of the Government defining the functions, tasks, powers and organizational structure of the Ministry of Science and Technology;,

At the proposal of the Director of Vietnam Agency for Radiation and Nuclear Safety & Control;
Minister of Science and Technology hereby stipulates:

Article 1. Issuing together with this Circular, "National Technical Regulation on Radiation Safety - Categorization and classifying radioactive source".

Article 2. This Circular takes effect after 45 days from its signing date and annuls Decision No. 17/2007/QD-BKHCN of August 31, 2007 of the Minister of Science and Technology on the issuance of regulation on categorization of radioactive source as required ensuring security.

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Any difficulties arising during the course of implementation should be promptly reported to the Ministry of Science and Technology for study, amendment and supplementation.

PP. MINISTER
DEPUTY MINISTER




Le Đinh Tien

QCVN 6: 2010/BKHCN

NATIONAL TECHNICAL REGULATION

ON RADIATION SAFETY - CATEGORIZATION AND CLASSIFICATION OF RADIOACTIVE SOURCE

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QCVN 6: 2010/BKHCN was written by Vietnam Agency for Radiation and Nuclear Safety & Control and issued by the Ministry of Science and Technology under Circular No. 24/2010/TT-BKHCN dated December 29, 2010.

NATIONAL TECHNICAL REGULATION

ON RADIATION SAFETY - CATEGORIZATION AND CLASSIFICATION OF RADIOACTIVE SOURCE

1. GENERAL REGULATION

1.1. Scope of adjustment

1.1.1. This Regulation specifies the categorization and classification of radioactive source.

1.1.2. This Regulation does not specify the categorization and classification of radioactive source in the management of radioactive waste.

1.2. Subject of application

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2. TECHNICAL REGULATION

2.1. Categorization of radioactive source

2.1.1. The radioactive sources are categorized based on the activity of the radioactive sources, the dangerous characteristics of the radioactive isotopes of radioactive sources and situations of use of radioactive sources. The radioactive sources are categorized into five groups from group 1 to 5 as by way of categorization specified at Point 2.1.2 or 2.1.3.

2.1.2. For radioactive source used in conventional radiation work, the way of categorization shall be based on the provisions of Annex I to this Regulation.

2.1.3. For radioactive source which is not listed in Annex I to this Regulation, the categorization shall be based on the value called the ratio of radioactivity determined in accordance with the guidance in Clause 2.2 as follows:

2.1.3.1. Group 1 consists of a radioactive source or combination of radioactive sources with the ratio of radioactivity greater than or equal to 1000.

2.1.3.2. Group 2 consists of radioactive source or combination of radioactive sources with the ratio of radioactivity greater than or equal to 10 and less than 1000.

2.1.3.3. Group 3 consists of radioactive source or combination of radioactive sources with the ratio of radioactivity greater than or equal to 1 and less than 10.

2.1.3.4. Group 4 consists of radioactive source or combination of radioactive sources with the ratio of radioactivity greater than or equal to 0.01 and less than 1.

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2.1.4. Tập hợp nguồn phóng xạ là tập hợp gồm nhiều nguồn phóng xạ đơn lẻ được sử dụng đồng thời trong một thiết bị; được lưu giữ trong một kho; được

Combination of radioactive sources is a combination of many single radioactive sources used simultaneously in one device; stored in a warehouse; transported, imported and exported in a shipment; existing at a place of production and processing of radioactive substance.

2.2. Tỷ số hoạt độ phóng xạ  Ratio of radioactivity

Tỷ số hoạt độ phóng xạ được xác định như sau:

The ratio of radioactivity is determined as follows:

2.2.1. For a single radioactive source

Ratio of radioactivity =

In which:

- A is the activity of the radioactive source at the time of review calculated in TBq.

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2.2.2. For the combination of radioactive sources:

Ratio of radioactivity =

In which:

- n is the number of radioactive isotopes in the radioactive source.

- A_i,n is the activity of a single radioactive source i generated from the radioactive isotope n in the combination of radioactive sources under review calculated in TBq.

- D_n is the characteristic value D for dangerous levels of radioactive isotope n, calculated in TBq. Value D is specified in Annex II to this Regulation.

2.3. Categorization of radioactive source

2.3.1. Radioactive source is categorized into three types including the above average dangerous level, average dangerous level and below average dangerous level as prescribed at Points 2.3.2, 2.3.3 and 2.3.4.

2.3.2. Radioactive source of the type with above average dangerous level includes the source of group 1 and group 2 specified in Clause 2.1.

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2.3.4. Radioactive source of the type with below average dangerous level include the source of group 4 and group 5 specified in Clause 2.1.

3. REGULATION ON MANAGEMENT AND ORGANIZATION OF IMPLEMENTATION

3.1. Organizations and individuals having radioactive source or conducting activities related to radioactive source must apply the provisions of this Technical Regulation to specify group and type of the radioactive source as a basis for implementation of regulations of the law on safety and security respectively.

3.2. Vietnam Agency for Radiation and Nuclear Safety & Control shall guide and inspect the implementation of this technical Regulation.

ANNEX I

PHÂN NHÓM ĐỐI VỚI NGUỒN PHÓNG XẠ DÙNG TRONG CÁC CÔNG VIỆC BỨC XẠ THÔNG THƯỜNG CATEGORIZATION FOR RADIOACTIVE SOURCE USED IN GENERAL RADIATION WORK

Source

Radioisotope

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Minimum

Typical

Maximum

Group 1

Source used in radioactive thermoelectric generator (RTG)

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3,3 x 10^2

7,4 x 10^2

2,5 x 10^4

Pu-238

1,0 x 10^0

1,0 x 10^1

1,0 x 10^1

Source used in equipment of radiation sterilization and material handling

Co-60

...

...

...

1,5 x 10^5

5,6 x 10^5

Cs-137

1,9 x 10^2

1,1 x 10^5

1,9 x 10^5

Source used in self-shielding gamma irradiation equipment

Cs-137

9,3 x 10^1

...

...

...

1,6 x 10^3

Co-60

5,6 x 10^1

9,3 x 10^2

1,9 x 10^3

Source used in self-shielding gamma irradiation equipment for irridation of blood/tissue

Cs-137

3,7 x 10^1

2,6 x 10^2

...

...

...

Co-60

5,6 x 10^1

8,9 x 10^1

1,1 x 10^2

Sources used in multi-beam teletherapy devices (gamma knife)

Co-60

1,5 x 10^2

2,6 x 10^2

3,7 x 10^2

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...

...

Co-60

3,7 x 10^1

1,5 x 10^2

5,6 x 10^2

Cs-137

1,9 x 10^1

1,9 x 10^1

5,6 x 10^1

...

...

...

Sources used in industrial radiography equipment

Co-60

4,1 x 10^-1

2,2 x 10^0

7,4 x 10^0

lr-192

...

...

...

3,7 x 10^0

7,4 x 10^0

Se-75

3,0x 10^0

3,0 x 10^0

3,0 x 10^0

Yb-169

9,3 x 10^-2

1,9 x 10^-1

...

...

...

Tm-170

7,4 x 10^-1

5,6 x 10^0

7,4 x 10^0

Source of brachytherapy- high/average dose rate

Co-60

1,9 x 10^-1

3,7 x 10^-1

7,4 x 10^-1

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...

1,1 x 10^-1

1,1 x 10^-1

3,0 x 10^-1

lr-192

1,1 x 10^-1

2,2 x 10^-1

4,4 x 10^-1

Source of calibration with high activity

Co-60

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...

...

7,4 x 10^-1

1,2 x 10^0

Cs-137

5,6 x 10^-2

2,2 x 10^0

1,1 x 10^2

Group 3

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Sources used in the level  meter

Cs-137

3,7 x 10^-2

1,9 x 10^-1

1,9 x 10^-1

Co-60

3,7 x 10^-3

1,9 x 10^-1

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...

Source of calibration with average activity

Am-241

1,9 x 10^-1

3,7 x 10^-1

7,4 x 10^-1

Pu-239/Be

7,4 x 10^-2

1,1 x 10^-1

3,7 x 10^-1

...

...

...

Cs-137

1,1 x 10^-4

1,1 x 10^-1

1,5 x 10^0

Cf-252

1,4 x 10^-3

1,4 x 10^-3

1,4 x 10^-3

Source used in nuclear instrument for blast furnace.

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3,7 x 10^-2

3,7 x 10^-2

7,4 x 10^-2

Source used in nuclear instrument of dredger

Co-60

9,3 x 10^-3

2,8 x 10^-2

9,6 x 10^-2

Cs-137

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...

...

7,4 x 10^-2

3,7 x 10^-1

Source used in roller meter

Cs-137

7,4 x 10^-2

7,4 x 10^-2

1,9 x 10^-1

Source for startup of research reactor

Am-241/Be

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...

...

7,4 x 10^-2

1,9 x 10^-1

Source for geophysical measurement of well

Am-241/Be

1,9 x 10^-2

7,4 x 10^-1

8,5 x 10^-1

Cs-137

3,7 x 10^-2

...

...

...

7,4 x 10^-2

Cf-252

1,0 x 10^-3

1,1 x 10^-3

4,1 x 10^-3

Sources used for cardiac devices

Pu-238

1,1 x 10^-1

1,1 x 10^-1

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...

Group 4

Source of brachytherapy - low dose rate

Cs-137

3,7 x 10^-4

1,9 x 10^-2

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Ra-226

1,9 x 10^-4

5,6 x 10^-4

1,9 x 10^-3

l-125

1,5 x 10^-3

1,5 x 10^-3

1,5 x 10^-3

Ir-192

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...

1,9 x 10^-2

2,8 x 10^-2

Au-198

3,0 x 10^-3

3,0 x 10^-3

3,0 x 10^-3

Cf-252

3,1 x 10^-3

3,1 x 10^-3

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Source used in thickness meter

Kr-85

1,9 x 10^-3

3,7 x 10^-2

3,7 x 10^-2

Sr-90

3,7 x 10^-4

3,7 x 10^-3

7,4 x 10^-3

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...

1,1 x 10^-2

2,2 x 10^-2

2,2 x 10^-2

Pm-147

7,4 x 10^-5

1,9 x 10^-3

1,9 x 10^-3

Cm-244

7,4 x 10^-3

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...

3,7 x 10^-2

Source used in level meter

Am-241

4,4 x 10^-4

2,2 x 10^-3

4,4 x 10^-3

Cs-137

1,9 x 10^-3

2,2 x 10^-3

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...

Co-60

1,9 x 10^-4

8,7 x 10^-4

1,9 x 10^-2

Nguồn hiệu chuẩn có hoạt độ thấp Source of calibration with low activity

Sr-90

7,4 x 10^-2

7,4 x 10^-2

7,4 x 10^-2

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Am-241/Be

1,9 x 10^-3

1,9 x 10^-3

3,7 x 10^-3

Nguồn dùng trong thiết bị đo mật độ Source used in density meter

Cs-137

3,0 x 10^-4

3,7 x 10^-4

3,7 x 10^-4

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Am-241/Be

3,0 x 10^-4

1,9 x 10^-3

3,7 x 10^-3

Cs-137

3,7 x 10^-5

3,7 x 10^-4

4,1 x 10^-4

Ra-226

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...

7,4 x 10^-5

1,5 x 10^-4

Cf-252

1,1 x 10^-6

2,2 x 10^-6

2,6 x 10^-6

Nguồn dùng trong thiết bị đo mật độ xương Source used in bone densitometer

Cd-109

7,4 x 10^-4

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...

7,4 x 10^-4

Gd-153

7,4 x 10^-4

3,7 x 10^-2

5,6 x 10^-2

l-125

1,5 x 10^-3

1,9 x 10^-2

3,0 x 10^-2

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1,0 x 10^-3

5,0 x 10^-3

1,0 x 10^-2

Nguồn dùng trong thiết bị khử tĩnh điện Sources used in antistatic devices

Am-241

1,1 x 10^-3

1,1 x 10^-3

4,1 x 10^-3

Po-210

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1,1 x 10^-3

4,1 x 10^-3

Bò molipden Bovine Molybdenum

Mo-99

3,7 x 10^-2

3,7 x 10^-2

3,7 x 10^-1

Nguồn hở dùng trong y học hạt nhân Open source used in nuclear medicine

l-131

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3,7 x 10^-3

7,4 x 10^-3

P-32

2,2 x 10^-3

2,2 x 10^-2

2,2 x 10^-2

Group 5

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Nguồn dùng trong thiết bị phân tích huỳnh quang tia X

Source used in X-ray fluorescence analysis equipment

Fe-55

1,1 x 10^-4

7,4 x 10^-4

5,0 x 10^-3

Cd-109

1,1 x 10^-3

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5,6 x 10^-3

Co-57

5,6 x 10^-4

9,3 x 10^-4

1,5 x 10^-3

Source used in Electron capture detector

Ni-63

1,9 x 10^-4

3,7 x 10^-4

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H-3

1,9 x 10^-3

9,3 x 10^-3

1,1 x 10^-2

Sources used in lightning protector

Am-241

4,8 x 10^-5

4,8 x 10^-5

4,8 x 10^-4

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2,6 x 10^-7

1,1 x 10^-6

3,0 x 10^-8

H-3

7,4 x 10^-3

7,4 x 10^-3

7,4 x 10^-3

Source of brachytherapy: eye pressure plate and permanently implanted dose rate source

Sr-90

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9,3 x 10^-4

1,5 x 10^-3

Ru/Rh-106

8,1 x 10^-6

2,2 x 10^-5

2,2 x 10^-5

Pd-103

1,1 x 10^-3

1,1 x 10^-3

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PET Source of PET equipment testing

Ge-68

3,7 x 10^-5

1,1 x 10^-4

3,7 x 10^-4

Sources used in the  mossbauer spectrometer

Co-57

1,9 x 10^-4

1,9 x 10^-3

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Tritium target

H-3

1,1 x 10^-1

2,6 x 10^-1

1,1 x 10^0

Note:

- TBq: Symbol of Teta Becquerel, is the derivatives of the Becquerel (Bq). Bq is the unit for measuring the activity of radioactive source and 1 Bq = 1 disintegration / 1 second. TBq is related to the unit of measurement of other radioactivity as follows:

1TBq = 10^12 Bq = 10^9 kBq = 10^6 MBq = 10^3 GBq

In which:

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MBq is the symbol of mega Becquerel

GBq is the symbol of Giga Becquerel.

1kCi = 10^3 Ci = 10^6 mCi = 10^9 mCi = 37 TBq

In which:

KCI is the symbol for kilogram curia.

mCi is the symbol for millimeter curia.

mCi is the symbol of microphone curia.

ANNEX II

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Radioactive isotope

Value D (TBq)

Radioactive isotope

Value D (TBq)

H-3

2x10^3

Sc-48

2 x 10^-2

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1x10^0

Ti-44

3 x 10^-2

Be-10

3x10^1

V-48

2 x 10^-2

C-11

6x10^-2

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2 x 10^3

C-14

5x10^1

Cr-51

2 x 10^0

N-13

6x10^-2

Mn-52

2 x 10^-2

...

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...

6x10^-2

Mn-53

CL

Na-22

3x10^-2

Mn-54

8 x 10^-2

Na-24

2x10^-2

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...

4 x 10^-2

Mg-28

2x10^-2

Fe-52

2 x 10^-2

Al-26

3x10^-2

Fe-55

8 x 10^2

...

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...

1x10^1

Fe-59

6 x 10^-2

Si-32

7x10^0

Fe-60

6 x 10^-2

P-32

1x10^1

...

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...

3 x 10^-2

P-33

2x10^2

Co-56

2 x 10^-2

S-35

6x10^1

Co-57

7 x 10^-1

...

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...

2x10^1

Co-58

7 x 10^-2

Cl-38

5x10^-2

Co-58m

7 x 10^-2

Ar-37

CL

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...

3 x 10^-2

Ar-39

3x10^2

Ni-59

1 x 10^3

Ar-41

5x10^-2

Ni-63

6 x 10^1

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CL

Ni-65

1 x 10^-1

K-42

2x10^-1

Cu-64

3 x 10^-1

K-43

7x10^-2

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7 x 10^-1

Ca-41

CL

Zn-65

1 x 10^-1

Ca-45

1x10^2

Zn-69

3 x 10^1

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6x10^-2

Zn-69m

2 x 10^-1

Sc-44

3x10^-2

Ga-67

5 x 10^-1

Sc-46

3x10^-2

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7 x 10^-2

Sc-47

7 x 10^-1

Ga-72

3 x 10^-2

Ge-68

7 x 10^-2

Y-91m

1 x 10^-1

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...

1 x 10^3

Y-92

2 x 10^-1

Ge-77

6 x 10^-2

Y-93

6 x 10^-1

As-72

4 x 10^-2

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...

2 x 10^-2

As-73

4 x 10^1

Zr-93

CL

As-74

9 x 10^-2

Zr-95

4 x 10^-2

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2 x 10^-1

Zr-97

4 x 10^-2

As-77

8 x 10^0

Nb-93m

3 x 10^2

Se-75

2 x 10^-1

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...

4 x 10^-2

Se-79

2 x 10^2

Nb-95

9 x 10^-2

Br-76

3 x 10^-2

Nb-97

1 x 10^-1

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...

2 x 10^-1

Mo-93

3 x 10^2

Br-82

3 x 10^-2

Mo-99

3 x 10^-1

Kr-81

3 x 10^1

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...

1 x 10^-1

Kr-85

3 x 10^1

Tc-96

3 x 10^-2

Kr-85m

5 x 10^-1

Tc-96m

3 x 10^-2

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...

9 x 10^-2

Tc-97

CL

Rb-81

1 x 10^-1

Tc-97m

4 x 10^1

Rb-83

1 x 10^-1

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...

5 x 10^-2

Rb-84

7 x 10^-2

Tc-99

3 x 10^1

Rb-86

7 x 10^-1

Tc-99m

7 x 10^-1

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CL

Ru-97

3 x 10^-1

Sr-82

6 x 10^-2

Ru-103

1 x 10^-1

Sr-85

1 x 10^-1

...

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...

8 x 10^-2

Sr-85m

1 x 10^-1

Ru-106

3 x 10^-1

Sr-87m

2 x 10^-1

Rh-99

1 x 10^-1

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...

2 x 10^1

Rh-101

3 x 10^-1

Sr-90

1 x 10^0

Rh-102

3 x 10^-2

Sr-91

6 x 10^-2

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...

1 x 10^-1

Sr-92

4 x 10^-2

Rh-103m

9 x 10^2

Y-87

9 x 10^-2

Rh-105

9 x 10^-1

...

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...

3 x 10^-2

Pd-103

9 x 10^1

Y-90

5 x 10^0

Pd-107

CL

Y-91

8 x 10^0

...

...

...

2 x 10^1

Ag-105

1 x 10^-1

l-124

6 x 10^-2

Ag-108m

4 x 10^-2

l-125

2 x 10^-1

...

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...

2 x 10^-2

l-126

1 x 10^-1

Ag-111

2 x 10^0

l-129

CL

Cd-109

2 x 10^1

...

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...

2 x 10^-1

Cd-113m

4 x 10^1

l-132

3 x 10^-2

Cd-115

2 x 10^-1

l-133

1 x 10^-1

...

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...

3 x 10^0

l-134

3 x 10^-2

In-111

2 x 10^-1

l-135

4 x 10^-2

In-113m

3 x 10^1

...

...

...

6 x 10^-2

In-114m

8 x 10^-1

Xe-123

9 x 10^-2

In-115m

4 x 10^-1

Xe-127

3 x 10^-1

...

...

...

3x 10^-1

Xe-131m

1 x 10^1

Sn-117m

5 x 10^-1

Xe-133

3 x 10^0

Sn-119m

7 x 10^1

...

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...

3 x 10^-1

Sn-121m

7 x 10^1

Cs-129

3 x 10^-1

Sn-123

7 x 10^0

Cs-131

2 x 10^1

...

...

...

1 x 10^-1

Cs-132

1 x 10^-1

Sn-126

3 x 10^-2

Cs-134

4 x 10^-2

Sb-122

1 x 10^-1

...

...

...

4 x 10^-2

Sb-124

4 x 10^-2

Cs-135

CL

Sb-125

2 x 10^-1

Cs-136

3 x 10^-2

...

...

...

2 x 10^-2

Cs-137

1 x 10^-1

Te-121

1 x 10^-1

Ba-131

2 x 10^-1

Te-121m

1 x 10^-1

...

...

...

2 x 10^-1

Te-123m

6 x 10^-1

Ba-133m

3 x 10^-1

Te-125m

1 x 10^1

Ba-140

3 x 10^-2

...

...

...

1 x 10^1

La-137

2 x 10^1

Te-127m

3 x 10^0

La-140

3 x 10^-2

Te-129

1 x 10^0

...

...

...

6 x 10^-1

Te-129m

1 x 10^0

Ce-141

1 x 10^0

Te-131m

4 x 10^-2

Ce-143

3 x 10^-1

...

...

...

3 x 10^-2

Ce-144

9 x 10^-1

I-123

5 x 10^-1

Pr-142

1 x 10^0

Pr-143

3 x 10^1

...

...

...

2 x 10^0

Nd-147

6 x 10^-1

Ho-166m

4 x 10^-2

Nd-149

2 x 10^-1

Er-169

2 x 10^2

...

...

...

2 x 10^-1

Er-171

2 x 10^-1

Pm-144

4 x 10^-2

Tm-167

6 x 10^-1

Pm-145

1 x 10^1

...

...

...

2 x 10^1

Pm-147

4 x 10^1

Tm-171

3 x 10^2

Pm-148m

3 x 10^-2

Yb-169

3 x 10^-1

...

...

...

6 x 10^0

Yb-175

2 x 10^0

Pm-151

2 x 10^-1

Lu-172

4 x 10^-2

Sm-145

4 x 10^0

...

...

...

9 x 10^-1

Sm-147

CL

Lu-174

8 x 10^-1

Sm-151

5 x 10^2

Lu-174m

6 x 10^-1

...

...

...

2 x 10^0

Lu-177

2 x 10^0

Eu-147

2 x 10^-1

Hf-172

4 x 10^-2

Eu-148

3 x 10^-2

...

...

...

2 x 10^-1

Eu-149

2 x 10^0

Hf-181

1 x 10^-1

Eu-150b

2 x 10^0

Hf-182

5 x 10^-2

...

...

...

5 x 10^-2

Ta-178a

7 x 10^-2

Eu-152

6 x 10^-2

Ta-179

6 x 10^0

Eu-152m

2 x 10^-1

...

...

...

6 x 10^-2

Eu-154

6 x 10^-2

W-178

9 x 10^-1

Eu-155

2 x 10^0

W-181

5 x 10^0

...

...

...

5 x 10^-2

W-185

1 x 10^2

Gd-146

3 x 10^-2

W-187

1 x 10^-1

Gd-148

4 x 10^-1

...

...

...

1 x 10^0

Gd-153

1 x 10^0

Re-184

8 x 10^-2

Gd-159

2 x 10^0

Re-184m

7 x 10^-2

...

...

...

1 x 10^2

Re-186

4 x 10^0

Tb-158

9 x 10^-2

Re-187

CL

Tb-160

6 x 10^-2

...

...

...

1 x 10^0

Dy-159

6 x 10^0

Re-189

1 x 10^0

Dy-165

3 x 10^0

Os-185

1 x 10^-1

...

...

...

1 x 10^0

Os-191

2 x 10^0

Os-191m

1 x 10^0

Bi-205

4 x 10^-2

Os-193

1 x 10^0

...

...

...

2 x 10^-2

Os-194

7 x 10^1

Bi-207

5 x 10^-2

Ir-189

1 x 10^0

Bi-210

8 x 10^0

...

...

...

5 x 10^-2

Bi-210m

3 x 10^-1

Ir-192

8 x 10^-2

Bi-212

5 x 10^-2

Ir-194

7 x 10^-1

...

...

...

6 x 10^-2

Pt-188

4 x 10^-2

At-211

5 x 10^-1

Pt-191

3 x 10^-1

Rn-222

4 x 10^-2

...

...

...

3 x 10^3

Ra-223

1 x 10^-1

Pt-193m

1 x 10^1

Ra-224

5 x 10^-2

Pt-195m

2 x 10^0

...

...

...

1 x 10^-1

Pt-197

4 x 10^0

Ra-226

4 x 10^-2

Pt-197m

9 x 10^-1

Ra-228

3 x 10^-2

...

...

...

6 x 10^-1

Ac-225

9 x 10^-2

Au-194

7 x 10^-2

Ac-227

4 x 10^-2

Au-195

2 x 10^0

...

...

...

3 x 10^-2

Au-198

2 x 10^-1

Th-227

8 x 10^-2

Au-199

9 x 10^-1

Th-228

4 x 10^-2

...

...

...

7 x 10^-2

Th-229

1 x 10^-2

Hg-195m

2 x 10^-1

Th-230

7 x 10^-2

Hg-197

2 x 10^0

...

...

...

1 x 10^1

Hg-197m

7 x 10^-1

Th-232

CL

Hg-203

3 x 10^-1

Th-234

2 x 10^0

...

...

...

5 x 10^-2

Pa-230

1 x 10^-1

Tl-201

1 x 10^0

Pa-231

6 x 10^-2

Tl-202

2 x 10^-1

...

...

...

4 x 10^-1

Tl-204

2 x 10^1

U-230

4 x 10^-2

Pb-201

9 x 10^-2

U-232

6 x 10^-2

...

...

...

2 x 10^-1

U-233

7 x 10^-2

Pb-203

2 x 10^-1

U-234

1 x 10^-1

Pb-205

CL

...

...

...

8 x 10^-5

Pb-210

3 x 10^-1

U-236

2 x 10^-1

Pb-212

5 x 10^-2

U-238

CL

...

...

...

CL

Am-244

9 x 10^-2

Poor U

CL

Cm-240

3 x 10^-1

Enriched U 10-20%

8 x 10^-4

...

...

...

1 x 10^-1

Cm-242

4 x 10^-2

Enriched U > 20%

8 x 10^-5

Cm-243

2 x 10^-1

Cm-244

5 x 10^-2

...

...

...

1 x 10^2

Cm-245

9 x 10^-2

Np-236b

7 x 10^-3

Cm-246

2 x 10^-1

Np-236a

8 x 10^-1

...

...

...

1 x 10^-3

Np-237

7 x 10^-2

Cm-248

5 x 10^-3

Np-239

5 x 10^-1

Bk-247

8 x 10^-2

...

...

...

1 x 10^-1

Bk-249

1 x 10^1

Pu-237

2 x 10^0

Cf-248

1 x 10^-1

Pu-238

6 x 10^-2

...

...

...

1 x 10^-1

Pu-239

6 x 10^-2

Cf-250

1 x 10^-1

Pu-240

6 x 10^-2

Cf-251

1 x 10^-1

...

...

...

3 x 10^0

Cf-254

3 x 10^-4

Pu-242

7 x 10^-2

Pu-239/Be-9

6 x 10^-2

Pu-244

3 x 10^-4

...

...

...

2 x 10^-2

Am-241

6 x 10^-2

Cf-253

4 x 10^-1

Am-242m

3 x 10^-1

Am-241/Be-9

6 x 10^-2

...

...

...

2 x 10^-1

Note:

- CL is the abbreviation for extremely large. When the value D of radioisotope is CL (extremely large), the ratio of radioactivity of radioactive source created by that radioactive unit shall be of extremely small value and will be categorized in group 5.