Boron-10 nanoparticles filled silicon trenches for thermal neutron detection application

2017 ◽  
Vol 110 (19) ◽  
pp. 192105 ◽  
Author(s):  
Jia-Woei Wu ◽  
Adam Weltz ◽  
Machhindra Koirala ◽  
James J.-Q. Lu ◽  
Rajendra Dahal ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Neutron Detection ◽  
Silicon Trenches

EAS thermal neutron detection with the PRISMA-LHAASO-16 experiment

2017 ◽  
Vol 12 (12) ◽  
pp. P12028-P12028 ◽  
Author(s):  
B.-B. Li ◽  
V.V. Alekseenko ◽  
S.-w Cui ◽  
T.-L. Chen ◽  
S.-H. Feng ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Neutron Detection

Electrophoretic Deposition of 10B Nano/Micro Particles in Deep Silicon Trenches for the Fabrication of Solid State Thermal Neutron Detectors

2018 ◽  
Vol 27 (01n02) ◽  
pp. 1840002 ◽  
Author(s):  
Machhindra Koirala ◽  
Jia Woei Wu ◽  
Adam Weltz ◽  
Rajendra Dahal ◽  
Yaron Danon ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Neutron ◽  
Electrophoretic Deposition ◽  
Detection Efficiency ◽  
Chemical Vapor ◽  
Cost Effective ◽  
Deposition Process ◽  
Neutron Detectors ◽  
Micro Particles ◽  
Silicon Trenches

We present a cost effective and scalable approach to fabricate solid state thermal neutron detectors. Electrophoretic deposition technique is used to fill deep silicon trenches with 10B nanoparticles instead of conventional chemical vapor deposition process. Deep silicon trenches with width of 5-6 μm and depth of 60-65 μm were fabricated in a p-type Si (110) wafer using wet chemical etching method instead of DRIE method. These silicon trenches were converted into continuous p-n junction by the standard phosphorus diffusion process. 10B micro/nano particle suspension in ethyl alcohol was used for electrophoretic deposition of particles in deep trenches and iodine was used to change the zeta potential of the particles. The measured effective boron nanoparticles density inside the trenches was estimated to be 0.7 gm cm-3. Under the self-biased condition, the fabricated device showed the intrinsic thermal neutron detection efficiency of 20.9% for a 2.5 × 2.5 mm2 device area.

Thermal neutron detection with Resistive Plate Chambers via the 10B(n,α)7Li reaction

2006 ◽  
Vol 158 ◽  
pp. 177-181 ◽  
Author(s):  
R. Arnaldi ◽  
E. Chiavassa ◽  
A. Colla ◽  
P. Cortese ◽  
G. Dellacasa ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Neutron Detection ◽  
Resistive Plate Chambers

Growth and scintillation properties of LiBr/CeBr3 eutectic scintillator for neutron detection

2021 ◽  
Author(s):  
Ryuga Yajima ◽  
Kei Kamada ◽  
Yui Takizawa ◽  
Masao Yoshino ◽  
Kyoung Jin Kim ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Gamma Ray ◽  
Neutron Detection ◽  
Eutectic Structure ◽  
Growth Direction ◽  
Emission Peak ◽  
Molar Ratio ◽  
X Ray ◽  
Vertical Bridgman ◽  
Lamellar Type

Abstract The 6LiBr/CeBr3 eutectic scintillator for thermal neutron detection has been developed due to achieving high 6Li concentration. The eutectics were grown by vertical Bridgman method. Molar ratio of 6Li in 6LiBr/CeBr3 eutectic is 35 %, which is higher than that of commercial neutron scintillators such Ce:LiCaAlF6 and Ce:Cs2LiYCl6. The grown eutectic had lamellar-type eutectic structure extending along the growth direction and optical transparency. The grown eutectics showed an emission peak at 360 and 380 nm ascribed to Ce3+ 4f-5d transition from CeBr3 scintillation phase. The measurements of scintillation performance of the 6LiBr/CeBr3 were performed using x-ray, gamma-ray and neutron irradiation to evaluate its potential as a neutron scintillator.

Transparent Y3 Al5 O12 : Li,Ce Ceramics for Thermal Neutron Detection

2013 ◽  
Vol 96 (4) ◽  
pp. 1067-1069 ◽  
Author(s):  
Shi Chen ◽  
Lihua Zhang ◽  
Kim Kisslinger ◽  
Yiquan Wu
Keyword(s):  
Thermal Neutron ◽  
Neutron Detection
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