[3N05-09] Nuclear Data Measurement

[3N08] Neutron Capture Cross Section Measurement of ¹²⁹I and ¹²⁷I using ANNRI at MLF/J-PARC

*Gerard Rovira¹, Atsushi Kimura¹, Shoji Nakamura¹, Shunsuke Endo¹, Osamu Iwamoto¹, Nobuyuki Iwamoto¹, Yosuke Toh¹, Mariko Segawa¹, Makoto Maeda¹, Tatsuya Katabuchi² (1. JAEA, 2. Tokyo Tech)

Keywords:J-PARC, ANNRI, 129I, 127I, Time-of-flight Measurement, Long-lived fission product

The neutron capture cross sections of ¹²⁹I and ¹²⁷I were measured at the ANNRI beamline of J-PARC. The time-of-flight
experimental technique together with the neutron filtering system were applied to determine the cross section for neutron
energies from the thermal to the keV neutron regions. In the present work, alongside the cross section data, the results of
a resonance shape analysis with the REFIT code are also included.