Composition of srm and cn u-doped glasses: Significance for their use as thermal neutron fluence monitors in fission track dating

Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, China

“…Neutron fluence was monitored using the CN2 and CN5 uranium dosimeter glasses [10] for the zircon and apatite samples respectively. Muscovite was used as an external detector that after irradiation were etched in 40% HF for 20 min at 25℃.…”

Tectonothermal history of the NE Jiangshan–Shaoxing suture zone: Evidence from 40Ar/39Ar and fission-track thermochronology in the Chencai region

“…The external prismatic surfaces of mounted grains were ground and polished, with samples then etched for ∼25 h in a 1:1 eutectic mix of NaOH/KOH at 210 • C. All samples were irradiated in a well-thermalized neutron flux in the 49-2 Swim Reactor at Beijing. Neutron fluence for zircon samples was monitored using CN2 uranium dosimeter glass (Bellemans et al, 1994). Muscovite was used as an external detector, which was detached from the mount and etched after irradiation in 40% HF for 20 min at 25 • C. Fission track densities in both natural and induced fission track populations were measured with a dry objective at 1000× magnification.…”

Thermal history and exhumation of the Northern Apennines (Italy): evidence from combined apatite fission track and vitrinite reflectance data from foreland basin sediments

“…An external detector of low‐U muscovite was placed on each mount and secured by tape. Thermal neutron fluence was monitored using Corning CN‐5 standard glass dosimeters (Bellemans et al ., 1995) placed at each end of the irradiation package. Samples from C‐1 to C‐10 were irradiated with thermal neutrons in the well‐thermalized HIFAR reactor (Lucas Heights, NSW, Australia), while the remaining samples were irradiated in the RISØ reactor (Roskilde, Denmark).…”