Gray Converter
Convert Gray to Picogray Second 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.
Picogray Secondpg·s
Target UnitThe picogray second (pg·s) is a derived unit of radiation dose in the International System of Units (SI) that represents the absorption of one trillionth (10^-12) of a gray over a second. The gray is the SI unit of absorbed radiation dose, defined as the absorption of one joule of radiation energy by one kilogram of matter. Therefore, one picogray second signifies an extremely small amount of radiation energy absorbed by matter within the timeframe of one second, making it a useful unit in fields requiring precise measurements of low radiation doses.
Current Use
The picogray second is primarily used in medical physics, radiation safety, and environmental science. It allows for precise measurement of radiation doses in situations where exposure levels are low. For example, in radiology, where patients are exposed to minimal radiation during diagnostic imaging, the picogray second provides a more accurate representation of the dosage received. Similarly, in nuclear medicine, it assists in monitoring patient exposure during therapeutic procedures, ensuring it remains within safe limits.
Fun Fact
The picogray second is so small that it is often used in specialized fields to measure exposures that are otherwise undetectable.
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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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Picogray Second
radiation • Non-SI
Definition
The picogray second (pg·s) is a derived unit of radiation dose in the International System of Units (SI) that represents the absorption of one trillionth (10^-12) of a gray over a second. The gray is the SI unit of absorbed radiation dose, defined as the absorption of one joule of radiation energy by one kilogram of matter. Therefore, one picogray second signifies an extremely small amount of radiation energy absorbed by matter within the timeframe of one second, making it a useful unit in fields requiring precise measurements of low radiation doses.
History & Origin
The picogray second emerged from the need for precise measurements in radiation dosimetry, particularly in medical and industrial applications. The gray was adopted as the standard unit of absorbed dose in 1975, and subsequent divisions of the gray, such as the picogray, were developed to facilitate measurements at lower radiation levels. The introduction of the picogray second reflects advancements in technology that allow scientists and professionals to measure and monitor radiation exposure with greater accuracy, especially in environments with low radiation levels.
Etymology: The term 'picogray' is derived from the prefix 'pico-', meaning one trillionth (10^-12), combined with 'gray,' named after the British physicist Louis Harold Gray, who contributed significantly to the field of radiation.
Current Use
The picogray second is primarily used in medical physics, radiation safety, and environmental science. It allows for precise measurement of radiation doses in situations where exposure levels are low. For example, in radiology, where patients are exposed to minimal radiation during diagnostic imaging, the picogray second provides a more accurate representation of the dosage received. Similarly, in nuclear medicine, it assists in monitoring patient exposure during therapeutic procedures, ensuring it remains within safe limits.
💡 Fun Facts
- •The picogray second is so small that it is often used in specialized fields to measure exposures that are otherwise undetectable.
- •Louis Harold Gray, the namesake of the gray and its subunits, made significant advancements in understanding the biological effects of radiation.
- •Picogray seconds are vital in ensuring that medical imaging techniques remain within safe operational parameters to minimize patient exposure.
📏 Real-World Examples
🔗 Related Units
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Frequently Asked Questions
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