Abstract
The 33S(n,a)30Si cross section measurement, using 10B(n,a) as reference, at the n_TOF Experimental Area 2 (EAR2) facility at CERN is presented. Data from 0.01?eV to 100?keV are provided and, for the first time, the cross section is measured in the range from 0.01?eV to 10?keV. These data may be used for a future evaluation of the cross section because present evaluations exhibit large discrepancies. The 33S(n,a)30Si reaction is of interest in medical physics because of its possible use as a cooperative target to boron in Neutron Capture Therapy (NCT).
Highlights
The neutron time-of-flight, n TOF, facility [1] is a neutron spallation beam facility at the European Organization for Nuclear Research (CERN), mainly dedicated to measure neutron-induced cross sections for nuclear technology [2, 3], astrophysics [4, 5] and medical physics [6, 7]
The 33S(n,α)30Si reaction is of interest in medical physics because of its possible use as a cooperative target to boron in Neutron Capture Therapy (NCT)
The preliminary data of the 33S(n,α)30Si cross section measured at the n TOF-Experimental Area 2 (EAR2) facility at CERN from 0.01 eV to 100 keV has been determined using the 10B(n,α) cross section as a reference
Summary
The neutron time-of-flight, n TOF, facility [1] is a neutron spallation beam facility at the European Organization for Nuclear Research (CERN), mainly dedicated to measure neutron-induced cross sections for nuclear technology [2, 3], astrophysics [4, 5] and medical physics [6, 7]. The main advantage of n TOF-EAR2 with respect to the existing one is the 30 to 40 times higher neutron flux, offering the possibility of measuring thin targets of radioactive material with short half-lives as well as reactions with low cross sections [12]. In this work it is presented the preliminary result of the 33S(n,α)30Si cross section in the energy range from 0.01 eV to 100 keV. In a previous work [17], the enhancement of the physical dose in the first 2 cm of tissue due to the presence of 33S in the medium has been demostrated by means of Monte Carlo simulations for a realistic NCT set-up
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