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Journal Articles

Rapid separation of zirconium using microvolume anion-exchange cartridge for $$^{93}$$Zr determination with isotope dilution ICP-MS

Asai, Shiho; Hanzawa, Yukiko; Konda, Miki; Suzuki, Daisuke; Magara, Masaaki; Kimura, Takaumi; Ishihara, Ryo*; Saito, Kyoichi*; Yamada, Shinsuke*; Hirota, Hideyuki*

Talanta, 185, p.98 - 105, 2018/08

 Times Cited Count:2 Percentile:77.65(Chemistry, Analytical)

Estimating the risks associated with radiation from long-lived fission products (LLFP) in radioactive waste is essential to ensure the long-term safety of potential disposal sites. In this study, the amount of $$^{93}$$Zr, a LLFP, was determined by ICP-MS after separating Zr from a spent nuclear fuel solution using a microvolume anion-exchange cartridge (TEDA cartridge). The TEDA cartridge achieved highly selective separation of Zr regardless of its small bed volume of 0.08 cm$$^{3}$$. The time taken to complete the Zr separation was 1.2 min with a flow rate of 1.5 mL/min, which was 10 times faster than that for a conventional anion-exchange resin column. Almost all the other elements were removed, leading to accurate measurement of $$^{93}$$Zr. The result connects experimental value to theoretical prediction provided by ORIGEN2, which requires verification. With the measured value, we demonstrated that the theoretical value is reliable enough to estimate radiation risks.

Journal Articles

Thermodynamic study of gaseous CsBO$$_{2}$$ by Knudsen effusion mass spectrometry

Nakajima, Kunihisa; Takai, Toshihide; Furukawa, Tomohiro; Osaka, Masahiko

Journal of Nuclear Materials, 491, p.183 - 189, 2017/08

 Times Cited Count:1 Percentile:71.51(Materials Science, Multidisciplinary)

One of the main chemical forms of cesium in the gas phase during severe accidents of light water reactor is expected to be cesium metaborate, CsBO$$_{2}$$, by thermodynamic equilibrium calculation considering reaction with boron. But accuracy of the thermodynamic data of gaseous metaborate, CsBO$$_{2}$$(g), has been judged as poor quality. Thus, Knudsen effusion mass spectrometric measurement of CsBO$$_{2}$$ was carried out to obtain reliable thermodynamic data. The evaluated values of standard enthalpy of formation of CsBO$$_{2}$$(g), $$Delta$$$$_{f}$$H$$^{circ}$$$$_{298}$$(CsBO$$_{2}$$,g), by the 2nd and 3rd law treatments are -700.7$$pm$$10.7 kJ/mol and -697.0$$pm$$10.6 kJ/mol, respectively, and agree with each other within the errors, which suggests our data are reliable. Further, it was found that the existing data of the Gibbs energy function and the standard enthalpy of formation agreed well with the values evaluated in this study, which indicates the existing thermodynamic data are also reliable.

JAEA Reports

Preparation of Zr-91 stable isotope standard solution for determination of Zr-93 by mass spectrometry

Konda, Miki; Asai, Shiho; Hanzawa, Yukiko; Magara, Masaaki

JAEA-Technology 2015-054, 22 Pages, 2016/03

JAEA-Technology-2015-054.pdf:3.44MB

Isotope dilution mass spectrometry (IDMS) with ICP-MS is reliable method for determination of Zr-93, which is one of the long-lived fission products found in spent nuclear fuel and high-level radioactive wastes. In order to use an isotope standard solution of zirconium as the spike for IDMS, dissolving a commercially available solid isotope standard is indispensable. Prior to the dissolution of the Zr-91 isotope standard, solubility of metal zirconium in a mixture of HNO$$_3$$ and HF was evaluated using zirconium metal chips. Then, 2 mg of the Zr-91 isotope standard was dissolved with 0.2 mL of 1 M HNO$$_3$$-3 v/v% HF mixed solution, followed by adjusting the concentration of Zr-91 to approximately 1,000 $$mu$$g/g. IDMS, in which a natural isotopic abundance standard solution of zirconium was used as the spike, was employed for the determination of the concentration of Zr-91 in the prepared Zr-91 isotope standard solution. The concentration of Zr-91 in the prepared Zr-91 isotope standard solution was (9.6$$pm$$1.0) $$times$$ 10$$^2$$ $$mu$$g/g, which is in good agreement with the predicted concentration. This indicates that the Zr-91 metal isotope standard was completely dissolved with sufficient chemical stability. Additionally, no impurities were detected in the prepared Zr-91 isotope standard solution. These positive results denote that the Zr-91 isotope standard solution with the preferable quality for IDMS of Zr-93 can be obtained by the proposed dissolution procedures.

Journal Articles

Determination of $$^{129}$$I in environmental samples by AMS and NAA using an anion exchange resin disk

Suzuki, Takashi; Bamba, Shigeru*; Kitamura, Toshikatsu; Kabuto, Shoji*; Isogai, Keisuke*; Amano, Hikaru

Nuclear Instruments and Methods in Physics Research B, 259(1), p.370 - 373, 2007/06

 Times Cited Count:11 Percentile:32.46(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Strongly enhanced secondary ion emission by molecular ion irradiation

Yamamoto, Hiroyuki; Saito, Takeru; Asaoka, Hidehito

Journal of Trace and Microprobe Techniques, 19(4), p.571 - 579, 2001/11

 Times Cited Count:4 Percentile:83.37(Chemistry, Analytical)

no abstracts in English

Journal Articles

Silicon cluster formation by molecular ion irradiation; Relationship between iradiated ion species and cluster yield

Yamamoto, Hiroyuki; Saito, Takeru; Asaoka, Hidehito

Applied Surface Science, 178(1-4), p.127 - 133, 2001/07

 Times Cited Count:4 Percentile:69.44

no abstracts in English

Journal Articles

Application of SIMS and TXRF techniques to lead air-pollution monitoring

Esaka, Fumitaka; Zheng, W.*; Watanabe, Kazuo; Magara, Masaaki; Hanzawa, Yukiko; Usuda, Shigekazu; Adachi, Takeo

Advances in Mass Spectrometry, 15, p.973 - 974, 2001/00

no abstracts in English

JAEA Reports

None

Yamasaki, Shinichi*

JNC-TJ8430 2000-005, 159 Pages, 2000/03

JNC-TJ8430-2000-005.pdf:3.95MB

no abstracts in English

Journal Articles

Determination of thorium and uranium in activated concrete by inductively coupled plasma mass spectrometry after anion-exchange separation

Kato, Kaneharu; Ito, Mitsuo; Watanabe, Kazuo

Fresenius Journal of Analytical Chemistry, 366(1), p.55 - 58, 2000/01

no abstracts in English

Journal Articles

Development and application of PIE apparatuses for high-burnup LWR fuels

; Mita, Naoaki; Nishino, Yasuharu; Amano, Hidetoshi

JAERI-Conf 99-009, p.103 - 111, 1999/09

no abstracts in English

Journal Articles

Definitive evidence for the existence of a long-lived vinylidene radical cation, H$$_{2}$$C=C$$^{+}$$

Hayakawa, Shigeo*; *; Arakawa, Kazuo; Morishita, Norio

Journal of Chemical Physics, 110(6-8), p.2745 - 2748, 1999/02

 Times Cited Count:20 Percentile:43.14(Chemistry, Physical)

no abstracts in English

Journal Articles

Emission of silicon cluster ions by molecular ion bombardment

Yamamoto, Hiroyuki; Baba, Yuji

Applied Physics Letters, 72(19), p.2406 - 2408, 1998/05

 Times Cited Count:9 Percentile:54.14(Physics, Applied)

no abstracts in English

Journal Articles

Dissociation mechanism of electronically excited C$$_{3}$$H$$_{4}$$ isomers by charge inversion mass spectrometry

Hayakawa, Shigeo*; *; Arakawa, Kazuo; Morishita, Norio

Int. J. Mass Spectrom. Ion Process, 171(1-3), p.209 - 214, 1997/00

no abstracts in English

Journal Articles

Comparison between electron yield, PSD ion yield, and surface pipico yield in near C and O K-edge XAFS in condensed methyl formate-D

Sekiguchi, Tetsuhiro; Sekiguchi, Hiromi*; *; Tanaka, Kenichiro*

J. Phys., IV, 7, p.505 - 506, 1997/00

no abstracts in English

Journal Articles

Photon-stimulated ion desorption from DCOO/Si(100) nearthe O K-edge

Sekiguchi, Hiromi*; Sekiguchi, Tetsuhiro

Surface Science, 390(1-3), p.214 - 218, 1997/00

 Times Cited Count:9 Percentile:44.8

no abstracts in English

Journal Articles

Inner-shell excitation and state-specific ion-desorption from condensed methyl formate

Sekiguchi, Tetsuhiro; Sekiguchi, Hiromi*

Atomic Collision Research in Japan, 0(22), p.89 - 90, 1996/00

no abstracts in English

JAEA Reports

None

PNC-TJ1545 95-001, 150 Pages, 1995/03

PNC-TJ1545-95-001.pdf:5.28MB

no abstracts in English

Journal Articles

Discrimination of C$$_{3}$$H$$_{4+}$$ isomeric ions by charge inversion mass spectrometry using an alkali metal target

*; *; Arakawa, Kazuo; Morishita, Norio; *

Int. J. Mass Spectrom. Ion Process, 151, p.89 - 95, 1995/00

no abstracts in English

37 (Records 1-20 displayed on this page)