https://doi.org/10.1140/epja/s10050-020-00191-z
Regular Article – Experimental Physics
Quantification of radioisotopes produced in 1.4 GeV proton irradiated lead–bismuth eutectic targets
1
Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India
2
Homi Bhabha National Institute, Mumbai, India
3
CERN-ISOLDE, 1211, Geneve 23, Switzerland
4
Ludwig-Maximilians-Universität München, Munich, Germany
5
Present address: SCK CEN, Boeretang 200, 2400, Mol, Belgium
6
Present address: TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada
* e-mail: susanta.lahiri@saha.ac.in
Received:
10
January
2020
Accepted:
30
June
2020
Published online:
14
August
2020
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 (
) and long-lived (
) radionuclides were identified by off-line 
-spectrometry and their activities at the end of bombardment (EOB) were determined. Total 80 -emitting radionuclides, ranging from 
to 
, 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.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
