Document Type : Research paper
Author
Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), Postcode: 14155-1339, Tehran, Iran
Abstract
In this paper, the response matrix of Superheated Drop Detector was analyzed and investigated using Evaluated Nuclear Data. Elastic, nonelastic and total neutron cross sections were extracted and used for calculating the probability of the production of charged particles as a result of neutron interaction with superheated liquid nuclei. The values of the response functions in each energy are proportional to the probability of the production of charged particles. It was proposed that the response function can be represented as the multiplication of the total neutron cross sections by a monotonic probability function. The parameters associated with this function change with changing the physical properties of the detector such as temperature or external pressure. The growth rate of this function decreases when the temperature decreases or the external pressure on detectors increases due to increase in threshold energy for the generated charged particles. So the growth rate and shape of this function are set by parameters which are dependent on the physical properties of Superheated Drop Detectors.
Keywords
- M. GATU JOHNSON et al. The 2.5 MeV neutron time-of-flight spectrometer TOFOR for experiments at JET, Nucl. Instrum. Meth. Phys. Res. A. 591(2), 417 (2008).
- J.R.D. Copley, T.J. Udovic, J. Res, Neutron Time-of-Flight Spectroscopy, Natl. Inst. Stand. Technol. 98, 71 (1993).
- R. Ciolini et al. A feasibility study of a SiC sandwich neutron spectrometer, Radiation Measurements. 46 (12), 1634 (2011).
- J.B. Czirr et al. Capture-gated neutron spectrometry, Nucl. Instrum. Meth. Phys. Res. A.476 (1–2), 309 (2002).
- F. Seitz, On the theory of the Bubble Chamber, The Physics of Fluids. 1 (1), 2 (1958).
- S. Badiei et al. Development and validation of a Geant4 application to calculate the response matrix of a set of superheated drop detectors under various external pressures. Nucl. Instrum. Meth. Phys. Res. A. 939, 55 (2019).
- S. Badiei et al. Unfolding of fast neutron spectra by superheated drop detectors using Adaptive Network-Based Fuzzy Inference System (ANFIS), Nucl. Instrum. Meth. Phys. Res. A. 944, 162517 (2019).
- S. Badiei et al. Development and experimental validation of a fast neutron spectrometry system based on Superheated Drop Detectors (SDDs) operating under different external pressures, Nucl. Instrum. Meth. Phys. Res. A. 1010, 165569 (2021).
- P. Rezaeian et al. Development of a new pressure dependent threshold superheated drop detector for neutrons, Nucl. Instrum. Meth. Phys. Res. A. 776, 50 (2015).
- S. Badiei et al. Investigation of processes and effective charged particles for bubble formation in Superheated Drop Detectors using Geant4 simulation toolkit, 27th Iran Nuclear Conference, Mashhad Ferdowsi University (2021).
- G.M. Hale, P.G. Young, C.Y. Fu, ENDF/B-VIII.0, U.S. Evaluated Nuclear Data Library (2018).
- A.J. Koning and D. Rochman, TENDL-2019 TALYS-based Evaluated Nuclear Data Library (2019).
- V. McLane, C. L. Dunford, P. F. Rose, Neutron Cross Sections. Elsevier. ISBN 978-0-323-14222-9. OCLC 1044711235 (2012).
- J. R. Lamarsh, Introduction to nuclear reactor theory, Addison-Wesley Reading, MA, 1966.
- H. L. Taylor, O. Lönsjö, and T. W. Bonner, Nonelastic Scattering Cross Sections for Fast Neutrons, Phys. Rev. 101, 1835 (1956).
- M. Ibaraki et al. Measurement of Neutron Non-elastic Cross Sections of C, Si, Fe, Zr and Pb in 40 - 80 MeV Region, Journal of Nuclear Science and Technology, 39 :sup2, 405 (2002).
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