A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched 64ZnO targets

Kartika Fajarwati; Wahyu Setia Budi; Ngurah Ayu Ketut Umiati; Imam Kambali

doi:10.1016/j.radphyschem.2025.113008

A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched ⁶⁴ZnO targets

Kartika Fajarwati
, Wahyu Setia Budi
, Ngurah Ayu Ketut Umiati
, Imam Kambali

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of ⁶⁴ZnO and ^natZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x10⁹ n/cm²s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched ⁶⁴ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.

Original language	English
Article number	113008
Journal	Radiation Physics and Chemistry
Volume	237
DOIs	https://doi.org/10.1016/j.radphyschem.2025.113008
Publication status	Published - Dec 2025

Keywords

Cu radioisotope
PHITS simulation
Proton beam
Radioactivity yield
Secondary neutron
Zn target

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10.1016/j.radphyschem.2025.113008

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title = "A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched 64ZnO targets",

abstract = "This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of 64ZnO and natZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x109 n/cm2s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched 64ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.",

keywords = "Cu radioisotope, PHITS simulation, Proton beam, Radioactivity yield, Secondary neutron, Zn target",

author = "Kartika Fajarwati and Budi, \{Wahyu Setia\} and Umiati, \{Ngurah Ayu Ketut\} and Imam Kambali",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier Ltd",

year = "2025",

month = dec,

doi = "10.1016/j.radphyschem.2025.113008",

language = "English",

volume = "237",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched 64ZnO targets

AU - Fajarwati, Kartika

AU - Budi, Wahyu Setia

AU - Umiati, Ngurah Ayu Ketut

AU - Kambali, Imam

PY - 2025/12

Y1 - 2025/12

N2 - This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of 64ZnO and natZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x109 n/cm2s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched 64ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.

AB - This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of 64ZnO and natZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x109 n/cm2s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched 64ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.

KW - Cu radioisotope

KW - PHITS simulation

KW - Proton beam

KW - Radioactivity yield

KW - Secondary neutron

KW - Zn target

UR - https://www.scopus.com/pages/publications/105007297600

U2 - 10.1016/j.radphyschem.2025.113008

DO - 10.1016/j.radphyschem.2025.113008

M3 - Article

AN - SCOPUS:105007297600

SN - 0969-806X

VL - 237

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

M1 - 113008

ER -

A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched ⁶⁴ZnO targets

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Keywords

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