Gray Converter
Convert Gray to Kilocurie 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.
KilocuriekCi
Target UnitA kilocurie (kCi) is a non-SI unit of radioactivity that measures the amount of radioactive material present, defined as 1,000 curies. The curie is based on the activity of 1 gram of radium-226, which was historically used as a standard for radioactivity. It quantifies the rate of radioactive decay, where one curie corresponds to 3.7 × 10^10 disintegrations per second. The kilocurie thus represents 3.7 × 10^13 disintegrations per second, making it a practical measurement for larger quantities of radioactive substances.
Current Use
The kilocurie is commonly used in various sectors, including nuclear medicine, radiological safety, and industrial radiography. It helps professionals quantify the activity of radioactive sources in a way that is manageable and comprehensible, particularly when dealing with high-activity materials. In medical settings, doses of radioactive isotopes are often expressed in kilocuries to facilitate treatment planning and monitoring.
Fun Fact
The curie unit was named after the Curies, who won two Nobel Prizes in Physics and Chemistry for their work on radioactivity.
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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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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
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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Kilocurie
radiation • Non-SI
Definition
A kilocurie (kCi) is a non-SI unit of radioactivity that measures the amount of radioactive material present, defined as 1,000 curies. The curie is based on the activity of 1 gram of radium-226, which was historically used as a standard for radioactivity. It quantifies the rate of radioactive decay, where one curie corresponds to 3.7 × 10^10 disintegrations per second. The kilocurie thus represents 3.7 × 10^13 disintegrations per second, making it a practical measurement for larger quantities of radioactive substances.
History & Origin
The term 'curie' was named in honor of Marie Curie and Pierre Curie, who conducted groundbreaking research on radioactivity in the early 20th century. The kilocurie, as a larger unit, was developed to simplify the measurement of significant amounts of radioactive materials used in medical and industrial applications.
Etymology: The word 'curie' derives from the surname of the Curies, emphasizing their contributions to the study of radioactivity.
Current Use
The kilocurie is commonly used in various sectors, including nuclear medicine, radiological safety, and industrial radiography. It helps professionals quantify the activity of radioactive sources in a way that is manageable and comprehensible, particularly when dealing with high-activity materials. In medical settings, doses of radioactive isotopes are often expressed in kilocuries to facilitate treatment planning and monitoring.
💡 Fun Facts
- •The curie unit was named after the Curies, who won two Nobel Prizes in Physics and Chemistry for their work on radioactivity.
- •1 kilocurie is equivalent to 3.7 trillion disintegrations per second, highlighting the immense activity levels that can be involved.
- •Despite being a non-SI unit, the curie and kilocurie are still widely used in the United States, especially in the field of nuclear medicine.
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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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The formula is: = × 1. This conversion factor is based on international standards.
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