検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

3KeV H$$_{2}$$$$^{+}$$ irradiation to Li/Pd/Cu trilaminar neutron production target for BNCT

BNCT用Li/Pd/Cu三層中性子発生用ターゲットの3KeVH$$_{2}$$$$^{+}$$照射効果

石山 新太郎; 藤井 亮*; 中村 勝*; 今堀 良夫*

Ishiyama, Shintaro; Fujii, Ryo*; Nakamura, Masaru*; Imahori, Yoshio*

Li/Pd/Cu三層中性子発生ターゲットの3KeV H$$_{2}$$$$^{+}$$照射を行い、ターゲットの生じる物理的化学的特性変化をXPS及びXAFSを用いて調べた結果、下記成果を得た。(1)無電解メッキによるPd/Cuターゲットの境界面結合は物理的結合である。(2)H$$_{2}$$$$^{+}$$照射によりPd 4$$d$$のエッジジャンプが生じた。これは照射により4$$d$$バンド内にホールが生じたことを意味している。(3)Pd 4$$d$$に0.9eVの化学シフトが照射により生じた。これはPd内にPdH$$_{x}$$化合物が生成したものを考えられる。

The Li/Pd/Cu trilaminar structures of the synthesized target for BNCT were characterized under 3keV H$$_{2}$$$$^{+}$$ irradiation by XPS and XAFS technique, which provides structural/electronic properties of solids, and information about the local structure, such as the nature and number of surrounding atoms and inter-atomic distances. Following conclusions were derived; (1) Pd-Cu physical bonding was produced between the Pd and Cu interface by electro-less plating Pd deposition on a high purity Cu plate (2) From the XAFS observation of white line of Pd, the Pd $$L$$3 Edge jump was found after H$$_{2}$$$$^{+}$$ irradiation, this fact indicates increase of hole density in Pd 4$$d$$-band. (3) 0.9 eV chemical shift was also observed in Pd $$L$$3 white line for Pd/Cu samples, which will affect the quality of the Li/Pd/Cu target due to the formation of PdH$$_{x}$$ in palladium insert layer.

Access

:

- Accesses

InCites™

:

パーセンタイル:15.38

分野:Materials Science, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.