scholarly journals Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

2010 ◽  
Vol 37 (2) ◽  
pp. 477-484 ◽  
Author(s):  
Christopher Fox ◽  
Tom Simon ◽  
Bill Simon ◽  
James F. Dempsey ◽  
Darren Kahler ◽  
...  
Keyword(s):  
Detector Response ◽  
Response Functions ◽  
Linear Accelerators

scholarly journals NEUTRON RESPONSE FUNCTION OF BONNER SPHERE SPECTROMETER WITH 6LiI(Eu) DETECTOR

2017 ◽  
Vol 20 (2) ◽  
pp. 65 ◽  
Author(s):  
Rasito Tursinah ◽  
Bunawas Bunawas ◽  
Jungho Kim
Keyword(s):  
Monte Carlo ◽  
Response Function ◽  
Neutron Fluence ◽  
Detector Response ◽  
Response Functions ◽  
Neutron Spectra ◽  
Mcnpx Code ◽  
Bonner Sphere ◽  
Bonner Sphere Spectrometer

Neutron Response Function of Bonner Sphere Spectrometer With 6LiI(Eu) Detector. The detector response function was needed to measure the neutron fluence based on the count rates from Bonner Sphere Spectrometer (BSS). The determination of response function of a BSS with 6LiI(Eu) detector has been performed using Monte Carlo MCNPX code. This calculation was performed for BSS using scintillation detector of 4 mm × 4 mm 6LiI(Eu) which is placed at the center of a set of polyethylene spheres i.e bare, 2", 3", 5", 8", 10", and 12" diameters. The BSS response functions were obtained for neutron energy of 1x10-9 MeV - 1x102  MeV in 111 energy bins and each value has an uncertainty less or equal to 2 %. The response function were compared with two response functions reported in the literature i.e IAEA document in Technical Reports Series 403 (TRS-403) and the calculation from Vega-Carrillo, et al. Also validated with measurement 252Cf neutron spectra, that shown the simulated BSS spectra were quite close to the experimental measured with a differrence of 3%.

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