What radiation units can I convert with this tool?

You can convert between various units of radiation activity (Becquerel, Curie), radiation exposure (Roentgen, Coulomb/kg), and absorbed dose (Gray, Rad).

Is this radiology converter accurate for medical use?

While we use precise conversion factors, this tool is for educational purposes only. For medical applications, always consult with qualified professionals and use approved clinical tools.

What is the difference between radiation activity and absorbed dose?

Radiation activity measures the rate of radioactive decay (Becquerel, Curie), while absorbed dose measures the energy deposited in tissue by radiation (Gray, Rad).

Can I use this tool on my mobile device?

Yes, our radiology converter is fully responsive and works on all devices including smartphones, tablets, and computers.

Are the conversion factors based on international standards?

Yes, we use conversion factors from internationally recognized standards such as those published by NIST and the International System of Units (SI).

Converters

Radiology Converters - Precise Radiation Measurement Conversions

Radiology Converters

Precise conversions for radiation activity, exposure, and absorbed dose measurements

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Value

Result

1 Becquerel = 2.703e-11 Curie

Tip: The Becquerel (Bq) is the SI unit of radioactivity, representing one decay per second. The Curie (Ci) is a larger unit traditionally used in nuclear medicine.

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Understanding Radiology Measurements: A Comprehensive Guide

Radiology measurements are critical in medical imaging, radiation therapy, and nuclear medicine. This guide explains the different units used to measure radiation and how to convert between them accurately.

Radiation Activity

Radiation activity measures the rate of radioactive decay. It indicates how many atoms in a radioactive material are decaying per unit of time.

Becquerel (Bq): The SI unit of radioactivity, equal to one decay per second
Curie (Ci): A traditional unit based on the activity of 1 gram of radium-226 (3.7×10¹⁰ decays per second)
Rutherford (Rd): Equal to 1,000,000 decays per second (1 MBq)

Radiation Exposure

Radiation exposure measures the ionization of air by X-rays or gamma rays. It represents the amount of radiation required to create a certain amount of electrical charge in air.

Coulomb per kilogram (C/kg): The SI unit of radiation exposure
Roentgen (R): The traditional unit of exposure, where 1 R = 2.58×10⁻⁴ C/kg

Absorbed Dose

Absorbed dose measures the energy deposited by radiation in a unit mass of tissue. This is the most relevant measurement for biological effects of radiation.

Gray (Gy): The SI unit of absorbed dose, equal to 1 joule per kilogram
Rad

: The traditional unit, where 1 rad = 0.01 Gy

Importance of Accurate Conversion

Accurate conversion between radiation units is essential for:

Medical dosage calculations in radiation therapy
Radiation protection and safety planning
Research and scientific publications
Regulatory compliance and reporting

Historical Context

The science of radiation measurement developed alongside our understanding of radioactivity. Marie Curie's work with radium in the early 20th century led to the definition of the Curie unit. As radiation safety became more important, standardized SI units were established for international consistency.

Safety Considerations

When working with radiation measurements:

Always double-check conversions for medical applications
Understand the difference between activity, exposure, and absorbed dose
Follow ALARA principles (As Low As Reasonably Achievable) for radiation exposure
Consult with qualified medical physicists for clinical applications