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Dosimetry Methods of Fast Neutron Using the Semiconductor Diodes |
| H. Zaki Dizaji1,2**, T. Kakavand3, F. Abbasi Davani4 |
1Department of Physics, Faculty of Science, Zanjan University, Zanjan, Iran
2Department of Physics, Faculty of Science, Imam Hossein Comprehensive University, Tehran, Iran
3Department of Physics, Faculty of Science, Imam Khomeini international University, Qazvin, Iran
4Department of Radiation Application, Shahid Beheshti University, Tehran, Iran
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| Cite this article: |
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H. Zaki Dizaji, T. Kakavand, F. Abbasi Davani 2014 Chin. Phys. Lett. 31 012901 |
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Abstract Semiconductor detectors based on a silicon pin diode are frequently used in the detection of different nuclear radiations. For the detection and dosimetry of fast neutrons, these silicon detectors are coupled with a fast neutron converter. Incident neutrons interact with the converter and produce charged particles that can deposit their energy in the detectors and produce a signal. In this study, three methods are introduced for fast neutron dosimetry by using the silicon detectors, which are: recoil proton spectroscopy, similarity of detector response function with conversion function, and a discriminator layer. Monte Carlo simulation is used to calculate the response of dosimetry systems based on these methods. In the different doses of an 241Am-Be neutron source, dosimetry responses are evaluated. The error values of measured data for dosimetry by these methods are in the range of 15–25%. We find fairly good agreement in the 241Am-Be neutron sources.
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Received: 26 August 2013
Published: 28 January 2014
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