22–26 Apr 2024
Asia/Ho_Chi_Minh timezone
*** See you in Elba, Italy in May 2026 ***

The effects of the dead layer thickness increase to the regions in the spectrum response for a coaxial HPGe detector

23 Apr 2024, 11:55
1h
Poster presentation Poster A

Speaker

Đạo (K.Y) Nguyễn Quang (Department of Biomedical physics - Faculty of Medicine - Nguyen Tat Thanh University)

Description

In the work, we studied the influences of dead layer thickness on the whole gamma
spectrum response for HPGe detector by using Monte Carlo simulation. From the
simulated relation of the FEPEs and the dead layer thicknesses, the dead layer thickness
of 0.567 mm was derived which increased compared with the nominal value of 0.46 mm
from manufacturer after 4 years of operation. The multiple scattering region and peak
decreased with different rates and the valley region of the forward scattering photon
increased quickly when the dead layer thickness increased. The energy dependence of the
P/T and the general range were also carried out. The results showed that the effect of the
increase in dead layer thickness on regions in the spectrum was not the same. Through
this study, among several scintillators, it was possible to find a HPGe detector suitable for
the purpose of the study

Minioral No
IEEE Member No
Are you a student? No

Authors

Ba Vu Ngoc (Nuclear Technique Laboratory, University of Science, Ho Chi Minh City, 227 – Nguyen Van Cu, Ward 4, District 5, Ho Chi Minh, Vietnam) Ms Loan Truong Thi Hong (Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, 227 – Nguyen Van Cu, Ward 4, District 5, Ho Chi Minh, Vietnam)

Co-author

Đạo (K.Y) Nguyễn Quang (Department of Biomedical physics - Faculty of Medicine - Nguyen Tat Thanh University)

Presentation materials

There are no materials yet.