Neutron spectrum measurements inside a self-shielded cyclotron during 18F production using a single-cylindrical neutron spectrometer with gold and indium activation foils

被引：1

作者：

Tursinah, Rasito ^{[1
,2
]}

Permana, Sidik ^{[1
]}

Su'ud, Zaki ^{[1
]}

Maulana, Alan ^{[2
]}

Rivai, A. K. ^{[2
]}

Santoso, Muhayatun ^{[2
]}

Sukmabuana, Putu ^{[2
]}

Nurhuda ^{[3
]}

Suryanto, Hari ^{[3
]}

Wahyudi ^{[2
]}

Kusdiana ^{[4
]}

Prakoso, Djoko ^{[2
]}

Ramadhani, M. F. ^{[2
]}

Bunawas ^{[5
]}

机构：

[1] Bandung Inst Technol, Nucl Sci & Engn Dept, Jl Ganeca 10, Bandung, Indonesia

[2] Natl Res & Innovat Agcy, Res Org Nucl Energy, BJ Habibie Sci & Technol Pk, Tangerang Selatan, Banten, Indonesia

[3] Dharmais Canc Ctr Hosp, Jl Letjen S Parman 84-86, Jakarta, Indonesia

[4] Natl Res & Innovat Agcy, Directorate Lab Management Res Facil Sci & Technol, Jl Lebak Bulus Raya 49, Jakarta, Indonesia

[5] Nuklindolab, Plaza Ciputat Mas, Tangerang Selatan, Banten, Indonesia

来源：

ANNALS OF NUCLEAR ENERGY | 2025年 / 211卷

关键词：

Neutron spectrum; F-18; production; Cyclotron; Self-shielded; Spectrometer; Single cylindrical; PET CYCLOTRON; MULTIDETECTOR; DESIGN; MODERATOR; VICINITY; RANGE; FIELD;

D O I：

10.1016/j.anucene.2024.110949

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Single-Cylindrical Neutron Spectrometer (SCNS) is a single moderated spectrometer in the form of a cylinder with a diameter of 8 cm and a length of 16 cm. Seven Au activation foil type neutron detectors are installed on the moderator axis with varying distances. This spectrometer is used to measure the neutron spectrum in self-shielded cyclotron during F-18 production using a proton of 11 MeV and a beam current of 25 mu A for 70 min. The detector response was calculated using MCNPX 2.7. The measurement results obtained activity of Au-198 and In-116m and were validated with simulation using MCNPX. With the detector response values and detector activity from the measurements, a neutron spectrum was obtained using the unfolding technique using the UMG program. The neutron spectrum from measurements using SCNS with Au and In activation foil detectors has a difference of 8 %. Meanwhile, with the MCNPX calculation results, the measurement results using the Au foil are 1 % while with the In foil it is 10 %.

引用

页数：7

共 1 条

[1] Characterization of the neutron flux during production of 18F at a medical cyclotron and evaluation of the incidental neutron spectrum for neutron damage studies
Jeffries, Brad D.
Algiere, Christopher
Gallagher, Jake A.
Nichols, Tyler H.
So, Joshua R.
Littlefield, Charles W., Jr.
Quinn, Michael
Brockman, John D.
APPLIED RADIATION AND ISOTOPES, 2019, 154

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