α/β Surface Contamination Monitors Testing

Systematic inspection for α/β surface contamination monitors is carried out under relevant radioactive testing standards. Core performance metrics including detection efficiency, background count rate, sensitivity and stability are verified. Calibration tests with standard radioactive sources ensure accurate measurement of surface radioactive contamination levels, satisfying radiation safety monitoring demands in nuclear industry, environmental protection, healthcare and other sectors to protect personnel and ecological safety.

Inspection Items

Instrument efficiency, detector surface response variation, relative intrinsic error, ambient temperature adaptability test, relative humidity adaptability test, transportation and storage adaptability test, background count rate, surface emission rate response, verification and calibration for surface contamination monitors (general), verification and calibration for α/β surface contamination monitors, verification and calibration for γ surface contamination monitors, verification and calibration for α surface contamination monitors, verification and calibration for β surface contamination monitors

Inspection Standards

1. JJG 478-2016 Verification Regulation for α, β Surface Contamination Monitors

2. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 9.2

3. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 9.3

4. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 9.4

5. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 10.1

6. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 10.2

7. GB/T 5202-2008 Alpha, Beta and Alpha-Beta (Beta Energy above 60 keV) Contamination Meters and Monitors, Clause 11

8. ISO 7503-1:2014 Measurement of Radioactivity - Surface Contamination - Part 1: General Principles

9. IEC 61098:2002 Installed Surface Contamination Monitors for Alpha, Beta and Gamma Radiation

10. ISO 12789-1:2008 Reference Radiation for Calibrating Surface Contamination Monitors

Inspection Equipment

Standard α/β radioactive sources, calibration device for surface contamination monitors, background counting measurement system, efficiency calibration unit, radiation dosimeter

Key Indicators and Inspection Requirements

1. Appearance: no obvious mechanical defects

2. Dimension: within design tolerance range

3. Performance: conform to declared technical specifications

4. Safety: comply with national radiation safety codes

5. Stability: maintain steady performance under specified conditions

6. Environmental adaptability: operate normally in rated ambient conditions

Inspection Methods and Implementation Points

1. Conduct testing in accordance with applicable national and industrial standards

2. Appearance inspection: visual check paired with dimensional gauges

3. Dimension inspection: multi-point measurement with precision tools

4. Performance testing: run on dedicated apparatus under standard laboratory conditions

5. Safety testing: complete targeted radiation safety assessments

6. Data processing: deliver compliance conclusion via statistical analysis

Precautions

1. All testing apparatus must stay within valid calibration cycles

2. Test ambient conditions shall meet standard requirements

3. Selected samples need to be fully representative

4. Follow official test procedures strictly during operation

5. Keep complete raw test records on site

6. Issue objective qualification evaluation based on measured data