Conversion of fast neutrons for neutron radiography with TPX2 detector

被引：0

作者：

Sagatova, Andrea ^{[1
]}

Fulop, Marko ^{[2
]}

Novak, Andrej ^{[1
]}

Vrban, Branislav ^{[1
]}

Luley, Jakub ^{[1
]}

Cerba, Stefan ^{[1
]}

Benkovsky, Ivan ^{[3
]}

Zatko, Bohumir ^{[4
]}

机构：

[1] Slovak Univ Technol Bratislava, Inst Nucl & Phys Engn, Fac Elect Engn & Informat Technol, Ilkovicova 3 St, Bratislava 84104, Slovakia

[2] ABRS Ltd, Pomlejska 106 St, Samorin 93101, Slovakia

[3] Comenius Univ, Fac Pharm, Odbojarov 10 St, Bratislava 83232, Slovakia

[4] Slovak Acad Sci, Inst Elect Engn, Dubravska Cesta 9 St, Bratislava 84239, Slovakia

来源：

NUKLEONIKA | 2024年 / 69卷 / 02期

关键词：

Hybrid pixel detector; Neutron conversion; Neutron radiography; Timepix2; TIMEPIX;

D O I：

10.2478/nuka-2024-0020

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Timepix2-based hybrid-pixel detector with a 500 mu m thick silicon sensor was employed for fast-neutrons registration to be applied in neutron radiography of metallic printed circuit heat exchanger (PCHE). Two energies of neutrons were experimentally tested. The detection of 3.55 MeV neutrons from the deuteron-deuteron (DD) reaction was compared to 15.7 MeV neutrons from the deuteron-tritium (DT) neutron generator. In order to distinguish the signal induced by the registered neutrons from the accelerator background, filtration of the recorded particle spectral tracks was applied. The benefit of applying hydrogen-based converter layer for 3.55 MeV neutrons was observable. On the other hand, in the case of 15.7 MeV neutrons, the direct registration by interaction with the sensor Si significantly dominates the conversion.

引用

页码：135 / 140

页数：6

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