Response of a superconducting transition-edge sensor microcalorimeter with a mushroom-shaped absorber to L X-rays emitted by transuranium elements

Keisuke Maehata, Makoto Maeda, Naoko Iyomoto, Kenji Ishibashi, Keisuke Nakamura, Katsunori Aoki, Koji Takasaki, Kazuhisa Mitsuda, Keiichi Tanaka