Publication Date:
2019
Description:
〈p〉Publication date: Available online 3 January 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms〈/p〉
〈p〉Author(s): Tamon Kusumoto, Morikazu Sakai, Atsushi Yoshida, Tadashi Kambara, Yoshiyuki Yanagisawa, Satoshi Kodaira, Keiji Oda, Masato Kanasaki, Koji Kuraoka, Rémi Barillon, Tomoya Yamauchi〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉We aim to determine the detection threshold of Kapton as an Etched Track Detector irradiated with 345 MeV/u U ion, as well as other several heavy ions of Al, Si, Ar, Kr and Xe. The heavier ions are found to have higher detection threshold in the stopping power. At the same stopping power, the track registration sensitivity decreases with increasing the nuclear charge of ions. U ion has the lowest sensitivity as 〈em〉S〈/em〉 = 0.04 at the detection threshold of 3400 keV/μm. We have updated the conventional radial dose distribution theory using a relatively new experimentally supported formula for the effective charge up to U ion. The local doses at a track radius of 0.8 nm, which is half of the length of a repeat unit of Kapton, is useful to understand the relation between the sensitivity of heavy ions and the stopping power at each detection threshold.〈/p〉〈/div〉
〈/div〉
Print ISSN:
0168-583X
Electronic ISSN:
1872-9584
Topics:
Physics
