The first neutron time-of-flight line in Spain: Commissioning and new data for the definition of a neutron standard field. (March 2020)

• Record Type: Journal Article
• Authors: Macías, M.; Fernández, B.; Praena, J.
• Is Part Of: Radiation physics and chemistry. Volume 168(2020:Mar.)
• Publication Date: 2020-03
• Subjects: Time-of-flight technique -- New neutron TOF line -- Accelerator-based neutron source -- Data for standard neutron field; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2019.108538
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: The National Accelerator Laboratory (CNA) has developed the first accelerator line in Spain devoted to the measurement of cross sections involving neutrons by means of the time-of-flight technique. For neutron generation, pulsed proton beams with 1 nsec pulse width and with variable repetition rates are delivered. The data acquisition has been built using a CAEN Digitizer. The aim of this work is to demonstrate the good performance of the time-of-flight system. The commissioning of the line has consisted of the measurement of the neutron field generated by protons at 1912 keV impinging on a thick lithium target. Such a field has been extensively used in nuclear astrophysics since 1988. Recently, there have been experimental works with the goal to support it as a standard neutron field. The results show the good performance of the time-of-flight system and also support its possible definition as a standard. Highlights: HiSPANoS, the accelerator-based neutron source in Spain has been upgraded for TOF. HiSPANoS-TOF, commissioning of a new time-of-flight facility in Europe. Towards a neutron standard field.