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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(11) [November 2012] >
| Title: | Radioactivity generation in Pb target by protons — A comparative study from MeV to GeV |
| Authors: | Nandy, Maitreyee
Lahiri, Chirashree |
| Keywords: | Induced activity
ALICE-91
TALYS-1.2
EMPIRE-2.19
QMD
Thick target
Saturation activity |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In an Accelerator
Driven Subcritical System (ADSS), choice of the target is decided by several
factors like neutron yield, heat generation, ease of cooling, possibility of
fire hazard, generation of chemically toxic elements and radioactive nuclides,
running cost of the accelerator, etc. natPb is one of the probable
targets for an ADSS. In the present work, we have estimated induced activity in
a natPb target by primary proton beam in the energy range of 20 MeV
up to 2.0 GeV using reaction model codes ALICE-91, TALYS-1.2, EMPIRE-2.19 and
QMD. The energy range studied spans the entire energy interval used for target
property study to practical application of an ADSS. At several hundreds of MeV,
some of the major contributors to induced activity are projectile-like
fragments, such as, 3H. The maximum
activity produced is of the order of 106-107 MBq
over the whole energy range. Some chemically toxic elements like Xe, Hg are
also formed in significant amount. |
| Page(s): | 761-765 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(11) [November 2012]
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