Acute Toxicity of 4-hydroxydiphenylamine (4-HDPA) and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPDQ), transformation products of 6PPD, to early instars of the mayfly, Neocloeon triangulifer

David J. Soucek

doi:10.1093/etojnl/vgaf062

Near-infrared scintillation in Nd3+-activated WO3-Gd2O3–B2O3 glasses: optimization of Nd concentration and application to optical-fiber-based remote radiation monitoring systems

2026-07-03

0

PRE

AI

K

Keita Miyajima *

A

Akihiro Nishikawa

T

Takumi Kato

D

Daisuke Nakauchi

N

Noriaki Kawaguchi

T

Takayuki Yanagida

DOI：10.1016/j.radphyschem.2026.114215

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• Nd3+-activated WO3-Gd2O3–B2O3 glasses were prepared by the melt quenching technique. • Near-infrared scintillation originating from Nd3+ 4f-4f transitions was observed. • 3.0% Nd doping provided the highest scintillation performance. • Lower detection limit of X-ray dose rates was 26 mGy/h with the best sample. • Afterglow level of the 3.0% Nd sample was 84 ppm at 20.0 ms after X-ray irradiation.

Near-infrared scintillation in Nd3+-activated WO3-Gd2O3–B2O3 glasses: optimization of Nd concentration and application to optical-fiber-based remote radiation monitoring systems

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