Gray Converter
Convert Gray to Millicurie and more • 73 conversions
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Unit Explanations
GrayGy
Source UnitThe 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.
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.
MillicuriemCi
Target UnitThe millicurie (mCi) is a non-SI unit of radioactivity that quantifies the amount of radioactive material present. One millicurie is equal to 3.7 × 10^7 disintegrations per second, which is derived from its relationship to the curie. The curie, named after Marie and Pierre Curie, was established as a unit to represent the amount of radioactive material that produces 37 billion disintegrations per second. Thus, a millicurie represents a smaller quantity, suitable for medical and scientific applications where precise radioactivity levels are crucial.
Current Use
The millicurie is predominantly used in the fields of nuclear medicine and radiopharmaceuticals. It allows for the easy measurement of small amounts of radioactive isotopes used in diagnostic imaging and treatments for conditions such as cancer. Its use extends to research laboratories, where precise measurements of radioactivity are essential for experiments involving radioactive materials. Regulatory agencies often require the activity of radioactive substances to be expressed in millicuries for safety and compliance purposes.
Fun Fact
The curie is named after Marie Curie, the first woman to win a Nobel Prize.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Gray
radiation • SI 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.
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 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.
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Millicurie
radiation • Non-SI
Definition
The millicurie (mCi) is a non-SI unit of radioactivity that quantifies the amount of radioactive material present. One millicurie is equal to 3.7 × 10^7 disintegrations per second, which is derived from its relationship to the curie. The curie, named after Marie and Pierre Curie, was established as a unit to represent the amount of radioactive material that produces 37 billion disintegrations per second. Thus, a millicurie represents a smaller quantity, suitable for medical and scientific applications where precise radioactivity levels are crucial.
History & Origin
The curie was established in the early 20th century during pioneering research on radioactivity led by Marie and Pierre Curie. The unit was named in their honor, recognizing their significant contributions to the field. The millicurie was subsequently defined as a fraction of the curie, facilitating the use of smaller quantities of radioactive substances in practical applications. This subdivision became essential for medical diagnostics and treatment, allowing for more manageable dosages in therapeutic contexts.
Etymology: The term 'millicurie' combines the prefix 'milli-' from Latin, meaning one-thousandth, with 'curie,' named after the Curies who discovered radium and polonium.
Current Use
The millicurie is predominantly used in the fields of nuclear medicine and radiopharmaceuticals. It allows for the easy measurement of small amounts of radioactive isotopes used in diagnostic imaging and treatments for conditions such as cancer. Its use extends to research laboratories, where precise measurements of radioactivity are essential for experiments involving radioactive materials. Regulatory agencies often require the activity of radioactive substances to be expressed in millicuries for safety and compliance purposes.
💡 Fun Facts
- •The curie is named after Marie Curie, the first woman to win a Nobel Prize.
- •1 millicurie is roughly equivalent to the radioactivity of about 10 micrograms of radium-226.
- •The millicurie is often used in conjunction with the SI unit becquerel, where 1 mCi equals 37 million Bq.
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Frequently Asked Questions
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To convert to , multiply your value by 1. For example, 10 equals 10 .
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