publication . Preprint . 2002

Thermoluminescence of Simulated Interstellar Matter after Gamma-ray Irradiation

Koike, K.; Nakagawa, M.; Koike, C.; Okada, M.; Chihara, H.;
Open Access English
  • Published: 01 Feb 2002
Interstellar matter is known to be strongly irradiated by radiation and several types of cosmic ray particles. Simulated interstellar matter, such as forsterite $\rm Mg_{2}SiO_{4}$, enstatite $\rm MgSiO_{3}$ and magnesite $\rm MgCO_{3}$ has been irradiated with the $\rm ^{60}Co$ gamma-rays in liquid nitrogen, and also irradiated with fast neutrons at 10 K and 70 K by making use of the low-temperature irradiation facility of Kyoto University Reactor (KUR-LTL. Maximum fast neutron dose is $10^{17}n_f{\rm /cm^{2}}$). After irradiation, samples are stored in liquid nitrogen for several months to allow the decay of induced radioactivity. We measured the luminescence ...
free text keywords: Astrophysics
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