BS EN ISO 4037-2:2021
Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV
| Standard number: | BS EN ISO 4037-2:2021 |
| Pages: | 36 |
| Released: | 2021-02-22 |
| ISBN: | 978 0 539 14666 0 |
| Status: | Standard |
BS EN ISO 4037-2:2021 - Radiological Protection Standard
Ensure the highest level of safety and accuracy in radiological protection with the BS EN ISO 4037-2:2021 standard. This comprehensive document is essential for professionals working with X and gamma reference radiation, providing the necessary guidelines for calibrating dosemeters and doserate meters, and determining their response as a function of photon energy.
Key Features
- Standard Number: BS EN ISO 4037-2:2021
- Pages: 36
- Release Date: February 22, 2021
- ISBN: 978 0 539 14666 0
- Status: Standard
Comprehensive Coverage
This standard is meticulously designed to cover a wide range of energy levels, specifically from 8 keV to 1.3 MeV and 4 MeV to 9 MeV. It provides detailed methodologies for dosimetry in radiation protection, ensuring that your equipment is accurately calibrated and responsive across these critical energy ranges.
Why Choose BS EN ISO 4037-2:2021?
In the field of radiological protection, precision and reliability are paramount. The BS EN ISO 4037-2:2021 standard is crafted to meet these demands, offering a robust framework for the calibration and testing of dosemeters and doserate meters. By adhering to this standard, you can be confident in the accuracy of your measurements and the safety of your operations.
Benefits of Using This Standard:
- Enhanced Safety: Ensure the highest level of safety for personnel and equipment by following the latest guidelines in radiological protection.
- Accurate Calibration: Achieve precise calibration of dosemeters and doserate meters, crucial for reliable radiation measurement.
- Comprehensive Guidelines: Benefit from detailed instructions and methodologies that cover a broad spectrum of photon energies.
- Industry Compliance: Stay compliant with international standards, enhancing your credibility and operational integrity.
Who Should Use This Standard?
The BS EN ISO 4037-2:2021 standard is indispensable for a wide range of professionals and organizations, including:
- Radiation safety officers
- Health physicists
- Medical physicists
- Laboratories specializing in radiation measurement
- Manufacturers of radiation detection equipment
Stay Ahead with the Latest in Radiological Protection
Released on February 22, 2021, this standard represents the latest advancements in radiological protection. By integrating the BS EN ISO 4037-2:2021 into your practices, you ensure that your operations are aligned with the most current and effective methodologies available.
Conclusion
Incorporating the BS EN ISO 4037-2:2021 standard into your radiological protection protocols is a strategic move towards enhanced safety, accuracy, and compliance. With its comprehensive coverage and detailed guidelines, this standard is an invaluable resource for any professional committed to excellence in radiation measurement and protection.
Invest in the BS EN ISO 4037-2:2021 standard today and take a significant step towards ensuring the safety and reliability of your radiological protection measures.
BS EN ISO 4037-2:2021
This standard BS EN ISO 4037-2:2021 Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy is classified in these ICS categories:
- 17.240 Radiation measurements
This document specifies the procedures for the dosimetry of X and gamma reference radiation for the calibration of radiation protection instruments over the energy range from approximately 8 keV to 1,3 MeV and from 4 MeV to 9 MeV and for air kerma rates above 1 µGy/h. The considered measuring quantities are the air kerma free-in-air, Ka, and the phantom related operational quantities of the International Commission on Radiation Units and Measurements (ICRU)[2], H*(10), Hp(10), H'(3), Hp(3), H'(0,07) and Hp(0,07), together with the respective dose rates. The methods of production are given in ISO 4037‑1.
This document can also be used for the radiation qualities specified in ISO 4037‑1:2019, Annexes A, B and C, but this does not mean that a calibration certificate for radiation qualities described in these annexes is in conformity with the requirements of ISO 4037.
The requirements and methods given in this document are targeted at an overall uncertainty (k = 2) of the dose(rate) of about 6 % to 10 % for the phantom related operational quantities in the reference fields. To achieve this, two production methods of the reference fields are proposed in ISO 4037‑1.
The first is to produce “matched reference fields”, which follow the requirements so closely that recommended conversion coefficients can be used. The existence of only a small difference in the spectral distribution of the “matched reference field” compared to the nominal reference field is validated by procedures, which are given and described in detail in this document. For matched reference radiation fields, recommended conversion coefficients are given in ISO 4037‑3 only for specified distances between source and dosemeter, e.g., 1,0 m and 2,5 m. For other distances, the user has to decide if these conversion coefficients can be used.
The second method is to produce “characterized reference fields”. Either this is done by determining the conversion coefficients using spectrometry, or the required value is measured directly using secondary standard dosimeters. This method applies to any radiation quality, for any measuring quantity and, if applicable, for any phantom and angle of radiation incidence. The conversion coefficients can be determined for any distance, provided the air kerma rate is not below 1 µGy/h.
Both methods require charged particle equilibrium for the reference field. However this is not always established in the workplace field for which the dosemeter shall be calibrated. This is especially true at photon energies without inherent charged particle equilibrium at the reference depth d, which depends on the actual combination of energy and reference depth d. Electrons of energies above 65 keV, 0,75 MeV and 2,1 MeV can just penetrate 0,07 mm, 3 mm and 10 mm of ICRU tissue, respectively, and the radiation qualities with photon energies above these values are considered as radiation qualities without inherent charged particle equilibrium for the quantities defined at these depths.
This document is not applicable for the dosimetry of pulsed reference fields.