Radiation Monitoring (hendriyanto haditjahyono) ICTP IAEA BATAN - - PowerPoint PPT Presentation
Radiation Monitoring (hendriyanto haditjahyono) ICTP IAEA BATAN Workshop on Wireless Sensor Networks for Radiation Monitoring Jakarta, 1 ~ 5 October 2012 Outline: Introduction Ionizing radiation Radiation monitoring activities and
(hendriyanto haditjahyono)
ICTP – IAEA – BATAN Workshop on Wireless Sensor Networks for Radiation Monitoring
Jakarta, 1 ~ 5 October 2012
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Outline:
Introduction Ionizing radiation Radiation monitoring activities and instruments Hardware of radiation monitor
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Objectives:
After following this session you will be able to distinguish between radiation and ionizing radiation; list various type of radiation source; describe the radiation dose concept; describe the purpose of radiation monitoring activities; mention various type of radiation monitoring instruments; explain the hardware of radiation monitor.
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Intoduction
Nuclear technology nowadays is applied in many areas, from medical to industrial, from agricultural to electrical.
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Intoduction
Every nuclear facility potentially emits a certain level of radiation to its surroundings. The public must be aware of that radiation responsibility to monitor radiations
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Ionizing Radiation
is not detectable by human sense can penetrate any material Electromagnetic Waves
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Ionizing Radiation
Radiation Sources: Radioactive material
Natural and Artificial
Interaction of energetic particle Fission reaction
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Ionizing Radiation
Radiation Dose
a measure of the energy deposited by radiation in a target. (Rem or Sievert)
Dose rate
Radiation dose per unit time. (Rem/hour
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Ionizing Radiation
Radioactive Contamination
Radioactive substances on surfaces, or within solids, liquids or gases, where their presence is unintended or undesirable.
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Radiation Monitoring Activity
By definition (IAEA Safety Glossary – 2007) Radiation monitoring involves the measurement of radiation dose or radionuclide contamination for reasons related to the assessment or control of exposure to radiation or radioactive substances, and the interpretation of the results.
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Radiation Monitoring Activity Purpose of monitoring Routine Task related Special Target monitoring: individual (personal) Workplace (area) Source environment
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Radiation Monitoring Activity Instruments Radiation monitoring activities can be carried
long, without any human intervention.
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Radiation Monitoring Activity Calibration
Bequerel
radiation/ second counts/ second (energy) sievert/ hour
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Hardware
detector HV signal processing HID
Main Block of Radiation Monitor
Ext
Radiatio n
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Hardware Detector:
To convert the nuclear energy become electric signal. The number of electric pulses is proportional with the incoming radiations The pulse height proportional to the radiation energy.
HV:
To polarize the detector (anode and cathode).
Signal Processing:
To shape and amplify the electric signal
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Hardware
Radiation Monitor Arduino module
hardware and software