Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets

Dibyasree Choudhury; Susante Lahiris; Nabanita Naskar; Melanie Delonca; Thierry Stora; João Pedro Fernandes Pinto Ramos; Elodie Aubert; Alexandre Dorsival; Joachim Vollaire; Ricardo Manuel Dos Santos Augusto; Alfredo Ferrari

doi:10.1140/epja/s10050-020-00191-z

Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets

Dibyasree Choudhury, Susante Lahiris, Nabanita Naskar, Melanie Delonca, Thierry Stora, João Pedro Fernandes Pinto Ramos, Elodie Aubert, Alexandre Dorsival, Joachim Vollaire, Ricardo Manuel Dos Santos Augusto, Alfredo Ferrari

Research output › peer-review

Abstract

Six cylindrical lead bismuth eutectic (LBE) targets having fixed diameter of 6 mm and varying lengths of 8–50 mm were irradiated with a 1.4 GeV proton beam at CERN-ISOLDE. Both short-lived (5 h <T1/2<5 days) and long-lived (T1/2>5 days) radionuclides were identified by off-line γ-spectrometry and their activities at the end of bombardment (EOB) were determined. Total 80 γ-emitting radionuclides, ranging from 7Be to 209At, were identified in the 50 mm long LBE target. The yields of all the radioisotopes were compared with the Monte Carlo Code FLUKA. The spallation reaction was the dominant mode whereas fission induced reactions had no significant contribution. The high energy proton irradiated LBE target may act as a large source of several clinically important and other exotic radionuclides.

Original language	English
Pages (from-to)	1-15
Number of pages	15
Journal	The European Physical Journal A
Volume	56
Issue number	204
DOIs	https://doi.org/10.1140/epja/s10050-020-00191-z
State	Published - 14 Aug 2020

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Choudhury, D., Lahiris, S., Naskar, N., Delonca, M., Stora, T., Fernandes Pinto Ramos, J. P., Aubert, E., Dorsival, A., Vollaire, J., Augusto, R. M. D. S., & Ferrari, A. (2020). Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets. The European Physical Journal A, 56(204), 1-15. https://doi.org/10.1140/epja/s10050-020-00191-z

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title = "Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets",

abstract = "Six cylindrical lead bismuth eutectic (LBE) targets having fixed diameter of 6 mm and varying lengths of 8–50 mm were irradiated with a 1.4 GeV proton beam at CERN-ISOLDE. Both short-lived (5 h 5 days) radionuclides were identified by off-line γ-spectrometry and their activities at the end of bombardment (EOB) were determined. Total 80 γ-emitting radionuclides, ranging from 7Be to 209At, were identified in the 50 mm long LBE target. The yields of all the radioisotopes were compared with the Monte Carlo Code FLUKA. The spallation reaction was the dominant mode whereas fission induced reactions had no significant contribution. The high energy proton irradiated LBE target may act as a large source of several clinically important and other exotic radionuclides.",

keywords = "Radioisotopes, LBE, CERN, ISOLDE",

author = "Dibyasree Choudhury and Susante Lahiris and Nabanita Naskar and Melanie Delonca and Thierry Stora and {Fernandes Pinto Ramos}, {Jo{\~a}o Pedro} and Elodie Aubert and Alexandre Dorsival and Joachim Vollaire and Augusto, {Ricardo Manuel Dos Santos} and Alfredo Ferrari",

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T1 - Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets

AU - Choudhury, Dibyasree

AU - Lahiris, Susante

AU - Naskar, Nabanita

AU - Delonca, Melanie

AU - Stora, Thierry

AU - Fernandes Pinto Ramos, João Pedro

AU - Aubert, Elodie

AU - Dorsival, Alexandre

AU - Vollaire, Joachim

AU - Augusto, Ricardo Manuel Dos Santos

AU - Ferrari, Alfredo

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AB - Six cylindrical lead bismuth eutectic (LBE) targets having fixed diameter of 6 mm and varying lengths of 8–50 mm were irradiated with a 1.4 GeV proton beam at CERN-ISOLDE. Both short-lived (5 h 5 days) radionuclides were identified by off-line γ-spectrometry and their activities at the end of bombardment (EOB) were determined. Total 80 γ-emitting radionuclides, ranging from 7Be to 209At, were identified in the 50 mm long LBE target. The yields of all the radioisotopes were compared with the Monte Carlo Code FLUKA. The spallation reaction was the dominant mode whereas fission induced reactions had no significant contribution. The high energy proton irradiated LBE target may act as a large source of several clinically important and other exotic radionuclides.

KW - Radioisotopes

KW - LBE

KW - CERN

KW - ISOLDE

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