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Salman Khan
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Which type of dosimeter is best for pulse short (duration let say 10 ns) dose measurement purpose?
Let's just say that he has a unique job in the industry...russ_watters said:10ns pulses sounds.....odd. can you say exactly what the application is?
If I want to measure the dose of FXR machine which may be use for radiography purpose. Such a machine produce output x-ray pulse of ns wedth.russ_watters said:None? By definition a dosimeter measures dose over time. Or do you mean pulses over time?
10ns pulses sounds.....odd. can you say exactly what the application is?
Other types of instruments can provide an exposure rate (expressed as milliroentgen per hour or mR/hr). These counters must be calibrated to read a particular type of radiation (alpha, beta, gamma, neutron, x-ray) as well as the amount of energy emitted. The reading will only be accurate for that type of radiation and that energy level. And these instruments need to be calibrated regularly to be sure they are providing correct information over time.
A dosimeter is a device used to measure the absorbed dose of ionizing radiation. It is crucial for measuring 10 ns pulse doses because such short pulses require highly sensitive and accurate instruments to capture the rapid energy deposition and ensure safety and precision in applications like medical treatments and radiation research.
When selecting a dosimeter for 10 ns pulse dose measurement, look for features such as high temporal resolution, fast response time, wide dynamic range, and high sensitivity. Additionally, it should have the ability to handle high dose rates and provide accurate and reliable measurements.
Yes, some dosimeters are specifically designed for short pulse measurements, such as the diamond detector dosimeters, silicon diode dosimeters, and certain types of ionization chambers. These devices are engineered to handle the rapid changes in dose rates and provide precise measurements for very short pulses.
Calibration of a dosimeter for 10 ns pulse dose measurements typically involves using a known radiation source with a well-characterized pulse duration and dose rate. The dosimeter must be exposed to this source under controlled conditions, and its readings are then compared to the known values to adjust and validate its accuracy. Regular calibration against a standard reference is essential to maintain measurement precision.
Common challenges include ensuring the dosimeter's response time is fast enough to accurately capture the short pulse duration, avoiding saturation at high dose rates, and managing noise and interference that can affect measurement accuracy. Additionally, maintaining calibration and ensuring the dosimeter's sensitivity and linearity over a wide range of doses are critical for reliable measurements.