WE-E-141-08: Measurements of Secondary Neutron Spectrum and Dose Equivalent From a 250 MeV Passively Scattered Proton Beam Using An Extended Range Bonner Sphere Spectrometer

2013 ◽  
Vol 40 (6Part30) ◽  
pp. 493-493
Author(s):  
R Howell ◽  
W Newhauser ◽  
E Burgett
Keyword(s):  
Proton Beam ◽  
Neutron Spectrum ◽  
Dose Equivalent ◽  
Secondary Neutron ◽  
Scattered Proton ◽  
Bonner Sphere ◽  
Extended Range ◽  
Bonner Sphere Spectrometer

Secondary neutron ambient dose equivalent measurement of the wobbling system of a proton beam radiotherapy facility

2017 ◽  
Vol 137 ◽  
pp. 116-120 ◽  
Author(s):  
Ying-Lan Liao ◽  
Hsien-Hsin Chen ◽  
Hsin-Yu Chen ◽  
Hsiao-Chieh Huang ◽  
Chien-Yi Yeh ◽  
...  
Keyword(s):  
Proton Beam ◽  
Dose Equivalent ◽  
Secondary Neutron ◽  
Proton Beam Radiotherapy ◽  
Ambient Dose Equivalent ◽  
Ambient Dose

Sensitivity study of CR39 track detector in an extended range Bonner sphere spectrometer

2007 ◽  
Vol 126 (1-4) ◽  
pp. 310-313 ◽  
Author(s):  
M. Caresana ◽  
S. Agosteo ◽  
F. Campi ◽  
M. Ferrarini ◽  
A. Porta ◽  
...  
Keyword(s):  
Sensitivity Study ◽  
Track Detector ◽  
Bonner Sphere ◽  
Extended Range ◽  
Bonner Sphere Spectrometer

NEUTRON SPECTRUM UNFOLDING USING VARIOUS COMPUTER CODES: A COMPARISON

2021 ◽  
pp. 128-133
Author(s):  
Thiệm
Keyword(s):  
Neutron Spectrum ◽  
Neutron Fluence ◽  
Dose Equivalent ◽  
Spectrum Unfolding ◽  
Bonner Sphere ◽  
Ambient Dose Equivalent ◽  
Computer Codes ◽  
Neutron Spectrum Unfolding ◽  
Spectrometer System ◽  
Ambient Dose

Dosimetric quantities at various distances from a 30 cm diameter polyethylene sphere moderated 241Am-Be source were investigated using the Bonner sphere spectrometer system. The different international commercial unfolding codes were applied to unfold the neutron spectrum, and their shapes were compared to each other. Additionally, the integrated neutron fluence rates overall spectrum and fractional neutron fluence rates were deduced and compared between the results obtained from different unfolding codes. As an important quantity applying in radiation safety assessment, the neutron ambient dose equivalent rates were also calculated and compared to each other to verify the utility feasibilities of the codes.

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