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Gray Converter

Convert Gray to Becquerel and more • 73 conversions

Result

0

1 0
Conversion Formula
1 = ---
Quick Reference
1 = 1
10 = 10
50 = 50
100 = 100
500 = 500
1000 = 1000

Unit Explanations

GrayGy

Source Unit

The gray (Gy) is the SI derived unit of absorbed dose of ionizing radiation, defined as the absorption of one joule of radiation energy by one kilogram of matter. It quantifies the amount of energy deposited by radiation in a specified mass of material, which in biological contexts is often human tissue. The gray is crucial in assessing radiation exposure and its potential biological effects, and it serves as a fundamental unit in radiation safety and protection protocols.

1 Gy = 1 J/kg

Current Use

The gray is widely used in medical fields, particularly in radiation therapy for cancer treatment, where precise dosages are critical for effective treatment while minimizing damage to surrounding healthy tissue. It is also employed in radiological assessments, nuclear power, and safety protocols for radiation workers. Various international organizations, including the International Atomic Energy Agency (IAEA), utilize the gray for consistent communication regarding radiation exposure levels.

Fun Fact

The gray is equivalent to 100 rad, an older unit of absorbed dose.

BecquerelBq

Target Unit

The becquerel (Bq) is the SI unit of radioactivity, representing the activity of a quantity of radioactive material in which one nucleus decays per second. This unit is named after Henri Becquerel, who discovered radioactivity in 1896. The concept of radioactivity encompasses processes such as alpha decay, beta decay, and gamma decay, which involve the transformation of unstable atomic nuclei. As a measure of disintegrations, the becquerel provides a quantifiable means to gauge the intensity of radioactivity in various materials, essential for safety in medical, industrial, and research applications.

1 Bq = 1 disintegration/second

Current Use

The becquerel is widely used in medical applications, such as in nuclear medicine for dosimetry and assessing the radioactivity of radiopharmaceuticals. It is also employed in environmental studies to monitor radioactive contamination and assess safety in nuclear power facilities. Regulatory bodies and safety guidelines use becquerels to ensure public health and safety regarding exposure to radioactive materials.

Fun Fact

The becquerel was officially adopted as an SI unit in 1975, a testament to the growing importance of radioactivity in science and safety.

Decimals:
Scientific:OFF

Result

0

1
0
Conversion Formula
1 = ...
1→1
10→10
100→100
1000→1000

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1
=
1.000
10
=
10.00
100
=
100.0

💡 Pro Tip: For the reverse conversion (), divide by the conversion factor instead of multiplying.

Gy

Gray

radiationSI Unit

Definition

The gray (Gy) is the SI derived unit of absorbed dose of ionizing radiation, defined as the absorption of one joule of radiation energy by one kilogram of matter. It quantifies the amount of energy deposited by radiation in a specified mass of material, which in biological contexts is often human tissue. The gray is crucial in assessing radiation exposure and its potential biological effects, and it serves as a fundamental unit in radiation safety and protection protocols.

History & Origin

The gray was introduced in 1975 by the International System of Units (SI) as the unit of absorbed dose to provide a standardized measurement for radiation exposure. Its creation was a response to the need for a unified system that could facilitate consistency in scientific research and practical applications in radiology, nuclear medicine, and radiation therapy.

Etymology: The unit is named after the British physicist Louis Harold Gray, who made significant contributions to the field of radiation therapy and the study of radiation's effects on biological tissue.

1975: The gray is officially adopted...

Current Use

The gray is widely used in medical fields, particularly in radiation therapy for cancer treatment, where precise dosages are critical for effective treatment while minimizing damage to surrounding healthy tissue. It is also employed in radiological assessments, nuclear power, and safety protocols for radiation workers. Various international organizations, including the International Atomic Energy Agency (IAEA), utilize the gray for consistent communication regarding radiation exposure levels.

HealthcareNuclear EnergyRadiologyEnvironmental Science

💡 Fun Facts

  • The gray is equivalent to 100 rad, an older unit of absorbed dose.
  • The gray is used in radiation therapy to ensure that the cancerous tissue receives a lethal dose while surrounding healthy tissue receives a much lower dose.
  • Louis Harold Gray was the first scientist to quantify the effects of radiation on living tissue, leading to advancements in cancer treatment.

📏 Real-World Examples

2 Gy
A patient receives a single dose of radiation for cancer treatment.
20 Gy
A radiation worker's annual limit for radiation exposure is set.
10 mGy
Diagnostic imaging procedures, such as CT scans, expose patients to radiation.
1.5 Gy
Radiation therapy for a thyroid condition requires a specific dose.
0.5 Gy
Environmental evaluations assess radiation levels after a nuclear accident.

🔗 Related Units

Rad (1 Gy = 100 rad)Rem (1 Gy = 100 rem (in terms of biological effect depending on radiation type))Sievert (1 Sv = 1 Gy for photons; used for equivalent dose measurement.)Joule (1 Gy is defined as 1 J/kg, linking it to energy absorption.)
Bq

Becquerel

radiationSI Unit

Definition

The becquerel (Bq) is the SI unit of radioactivity, representing the activity of a quantity of radioactive material in which one nucleus decays per second. This unit is named after Henri Becquerel, who discovered radioactivity in 1896. The concept of radioactivity encompasses processes such as alpha decay, beta decay, and gamma decay, which involve the transformation of unstable atomic nuclei. As a measure of disintegrations, the becquerel provides a quantifiable means to gauge the intensity of radioactivity in various materials, essential for safety in medical, industrial, and research applications.

History & Origin

The becquerel was introduced as a unit of measure in 1975 during the 14th General Conference on Weights and Measures (CGPM) in response to the growing need for standardized measurement of radioactivity. Prior to this, radioactivity was often measured in curies, a unit based on the activity of radium-226. The adoption of the becquerel provided a more universally applicable metric that aligned with the International System of Units (SI).

Etymology: The name 'becquerel' honors the French physicist Henri Becquerel, who discovered radioactivity in 1896, which led to significant advancements in nuclear physics and medicine.

1975: Becquerel introduced as the SI...

Current Use

The becquerel is widely used in medical applications, such as in nuclear medicine for dosimetry and assessing the radioactivity of radiopharmaceuticals. It is also employed in environmental studies to monitor radioactive contamination and assess safety in nuclear power facilities. Regulatory bodies and safety guidelines use becquerels to ensure public health and safety regarding exposure to radioactive materials.

HealthcareNuclear EnergyEnvironmental Monitoring

💡 Fun Facts

  • The becquerel was officially adopted as an SI unit in 1975, a testament to the growing importance of radioactivity in science and safety.
  • Henri Becquerel was awarded the Nobel Prize in Physics in 1903, sharing the honor with Marie and Pierre Curie for their work on radioactivity.
  • The becquerel was defined to be directly related to the physical process of decay, making it a more precise unit compared to the earlier curie.

📏 Real-World Examples

50 Bq
A radioactive source in a hospital emits 50 Bq.
200 Bq/kg
A soil sample shows a radioactivity level of 200 Bq/kg.
5 Bq/g
A food sample has a specific activity of 5 Bq/g.
1000 Bq
A radioactive waste container is measured at 1000 Bq.
150 Bq
A patient receives a radiopharmaceutical with an activity of 150 Bq.

🔗 Related Units

Curie (1 Curie = 37 billion Bq)Gray (1 Bq can result in a dose measured in Grays, depending on the energy of emitted radiation.)Sievert (Sievert measures biological effect of radiation, closely related to the activity measured in Bq.)Roentgen (Roentgen is an older unit for measuring exposure to ionizing radiation, related to Bq through specific radiation types.)

Frequently Asked Questions

How do I convert to ?

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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