JAEA-Review-2010-065.pdf:15.99MB - 日本原子力研究開発機構

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3-62 JAEA-Review 2010-065 Sensitivity of Micro Beam PIXE System in TIARA for Several Trace Elements Y. Iwata a) , K. Ishii b) , T. Kamiya c) and T, Satoh c) a) Department of Chemistry, Faculty of Education and Human Studies, Akita University, Department of Quantum Science and Engineering, b) Graduate School of Engineering, Tohoku University, c) Department of Advanced Radiation Technology, TAARI, JAEA Standard Reference Material (SRM) for determination of platinum and zinc was made by anion-exchange resin. Macro porous cation-exchange resin, Macro-Prep 25S (BioRad) was suspended in the standard solution containing the known amount of trace elements. The concentration of those elements in the resin was 0-270 ppmv. Individual particle of the resin was subjected to 3 MeV proton bombardments by micro beam system of TIARA. It was found the macro porous nature of the resin allows trace elements to react with the exchange sites located throughout the matrix. PIXEana program was used to analyze peak count for each characteristic X-ray. Sensitivity for Al, Ca, Mn, Fe, Co, Ni, Cu, Zn, Sr and Pb was calculated by elemental abundance in the resin and does of proton. The count for characteristic X-ray per pg (element) × nC (dose) and number of sample(n) for instance was Al : 80 ± 19 (17), Ca : 60 ± 14 (18), Fe 25 ± 6 (9) , Zn 8.0 ± 1.9 (8) and Pb : 8.0±1.9 (8). 1. はじめに PIXE分析における装置の校正や分析値の相互比較のために、イオン交換樹脂中に分析目的元素を正確量含有する標準物質(SRM)を開発してきた。これまで、粒径7-11 mmのマクロポーラス型陰イオン交換樹脂に、PtCl 6 2- および ZnCl3 - を付着させたSRM を調製し、TIARAマイクロPIXEシステムにおける白金と亜鉛の定量感度を報告した 1) 。今回は、マクロポーラス型陽イオン交換樹脂に生体関連元素のアルミニウム、カルシウム、マンガン、鉄、コバルト、ニッケル、銅、亜鉛、ストロンチウムおよび鉛を一定量含むSRM を調製し、特性X線強度と元素添加量とから、分析感度を求めたので報告する。 2. SRMの調製純水中に沈降したマクロポーラス型陽イオン交換樹脂Macro Prep 25S (粒径25 m 、 BIORAD)の体積をメスシリンダーで測定し、等しい大きさの球形の樹脂が最密充填していると仮定し、樹脂の体積を求めた。樹脂を含む懸濁液に、Al 3+ 、Ca 2+ 、 Mn 2+ 、Co 2+ 、Cu 2+ およびPb 2+ 含む標準溶液、あるいは Al 3+ 、Ca 2+ 、Fe 3+ 、Ni 2+ 、Zn 2+ 、Sr 2+ およびPb 2+ を含む標準溶液を加え、振とうした。樹脂体積あたりの含有量は、Al 3+ 、Ca 2+ およびPb 2++ は270 ppmvの一定量とし、 Mn 2+ 、Fe 3+ 、Co 2+ 、Ni 2+ 、Cu 2+ 、Zn 2 およびPb 2+ の含有量は54、81および135 ppmvと段階的に変化させ、添加する元素の違いを含め6種類のSRMを調製した。マイクロPIXE分析 TIARAの3 MeV 陽子ビームをサブミクロンに絞って照射した。スキャンエリアを29 29 m とし、大気中300 - 400 nCの照射を行った。 3. SRMのマイクロPIXE像マクロポーラス型の樹脂内に均一に分布したイオン交換基にAl 3+ 、Ca 2+ が均一に分布し、その交換基と金属イオンが反応することが確かめられた。添加した元素並びにイオン交換基に含まれる硫黄の特性X線のエネルギー領域の強度から、樹脂内の元素分布を画像化できた(Fig. 1)。解析プログラム(PIXEana)により、照射したSRMの粒径を求めることができる。画像内のSRM領域(Fig. 1 網掛部分)のスペクトルから、特性X線のピーク面積をPIXEana の Fitting機能で解析した。照射した10粒のSRMはほぼ球形であり、半径は、9.4 - 12.4 mであった。分析感度の定量化樹脂の体積から元素量、断面積か - 118 - Fig. 1 Elemental mapping of S in a SRM by Microbeam PIXE and extraction of image for SRM. ら照射電荷量および特性X線のカウントから、元素1 pgあたり 1 nC照射による特性X 線のカウント数を求めた(Table 1)。8-17個の SRMの結果を標準偏差とともに示した。試料間の変動が20- 30 %程度とやや大きいのは樹脂中の元素濃度やX線測定そのものではなく、Fig. 1で示した樹脂半径の見積もりやスペクトルの解析による誤差が大きいと判断している。調べた元素では、感度は主としてX線発生断面積の減少とともに低下している。第3周期元素については、KとK線の強度比を測定した。今回の感度測定により、1)マイクロビームでマッピングした部分から関心領域を抽出し、その面積(Pixcel) と照射電荷量を求める。2)関心領域のX 線スペクトルから目的元素の特性X線 Table 1 Analytical sensitivity for several elements by Microbeam PIXE in TIARA. Element Sensitivity n (X-ray) (Count / pg nC) Al (K) Si(Li) Detector 80 ± 19 17 Ca (K) 60 ± 14 18 カウントを求める。 Mn (K) そして、Table 1と1, Fe (K) 27 ± 7 25 ± 6 9 9 2)の結果から、関心 Co (K 16 ± 7 8 領域の元素存在量 Ni (K) 13 ± 3 8 を算出できることとなった。また、試料の厚さ等の形状がわかれば元素 Cu (K) Zn (K) Sr (K) Pb (L) 11 ± 3 8.0 ± 1.9 0.93 ± 0.35 1.4 ± 0.3 Ge Detector 8 8 9 17 濃度を求めることが可能となった。 Reference 1) Y. Iwata et al., JAEA Takasaki Ann. Rep. 2007 (2008) 173. 1) Zn (K) 150 ± 10 8 Pt (L) 33 ± 5 8
JAEA-Review 2010-065 4. Advanced Materials, Analysis and Novel Technology 4-01 Hydrogen Gasochromism of WO 3 Films Prepared by Reactive Sputtering ・・・・・・125 S. Yamamoto, K. Kawaguchi, M. Sugimoto and M. Yoshikawa 4-02 Li Ion Implantation into α-rhombohedral Boron: Carrier Doping for Superconduction ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・126 K. Kirihara, H. Hyodo, T. Nagatochi, S. Yamamoto, F. Esaka, H. Yamamoto, S. Shamoto and K. Kimura 4-03 Synthesis of Single-Crystalline and Amorphous SiC Nanotubes by Ion-Irradiation Technique ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・127 T. Taguchi, S. Yamamoto, K. Kawaguchi, K. Kodama and S. Shamoto 4-04 Polymer Optical Waveguides Fabricated by Using Proton Beam Writing ・・・・・・ 128 K. Miura, Y. Machida, M. Uehara, O. Hanaizumi, Y. Ishii, T. Satoh, K. Takano, T. Ohkubo, A. Yamazaki, A. Inouye, M. Kouka, A. Yokoyama and T. Kamiya 4-05 Synergy Effects in Electron/Ion Irradiation and Alkaline Pretreatment on Hydriding Property of Hydrogen Storage Alloys ・・・・・・・・・・・・・・・・・・・・・・・・・・ 129 H. Abe, M. Kishimoto, H. Uchida and T. Ohshima 4-06 Atomistic Study of Irradiation-induced Mass Transport Process ・・・・・・・・・・・・・・130 Y. Ikoma, T. Motooka, H. Sakita, Hafizal Yahaya, H. Naramoto, K. Narumi, S. Sakai and Y. Maeda 4-07 Fabrication of Diluted Magnetic Semiconductor Crystals by Ion-Implantation Technique ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 131 A. Yabuuchi, M. Maekawa, A. Kawasuso, S. Entani, Y. Matsumoto, S. Sakai and S. Yamamoto 4-08 Synthesis of Functional Polycarbosilane Nano-fiber by Ion Beam Induced Graft Polymerization ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 132 K. Yoshimura, M. Sugimoto, A. Idesaki, M. Yoshikawa and S. Seki 4-09 Gas Permeation Characteristics of Silicon Carbide Membrane Prepared by Radiation-curing of Polycarbosilane Film ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 133 A. Takeyama, M. Sugimoto, A. Idesaki and M. Yoshikawa 4-10 Investigation of Nano Porous SiC Based Fibers Synthesized by Precursor Method ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 134 M. Sugimoto, M. Yoshikawa, K. Kita, M. Narisawa and A. Nakahira 4-11 Control of Radial Size of Polymer Nanowire Formed by Ion Beam Irradiation ・・ 135 S. Tsukuda, S. Seki, M. Sugimoto, A. Idesaki, M. Yoshikawa and S.-I. Tanaka 4-12 Nano-crystalline Formation of Metallic Glasses by Ion Implantation ・・・・・・・・・・ 136 S. Nagata, Y. Murayama, B. Tsuchiya, T. Shikama, M. Sasase, A. Inouye and S. Yamamoto 4-13 Behavior of N Atoms in Nitriding Processes of Evaporated-Ti Thin Films due to Ion Implantation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 137 Y. Kasukabe, Y. Watanabe, Y. Chen, S. Yamamoto and M. Yoshikawa - 119 -
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JAEA-Review 2010-065 JAEA Takasaki
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JAEA-Review 2010-065 PREFACE This r
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JAEA-Review 2010-065 and pulsed hea
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JAEA-Review 2010-065 1-23 Studies o
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JAEA-Review 2010-065 3-24 Lethal Ef
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JAEA-Review 2010-065 4-07 Fabricati
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JAEA-Review 2010-065 5. Status of I
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JAEA-Review 2010-065 1-13 Alpha-rad
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1-01 Radiation Resistance of InGaP/
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1-03 Evaluation of Soft Error Rates
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1-05 Heavy-ion Induced Current in S
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Total Ionizing Dose Tolerance of Si
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1-09 Evaluation of Single Event Eff
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Hydrogen Diffusion in a-Si:H Thin F
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1-13 Alpha-radiolysis of Organic Ex
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Study on Stability of Cs·Sr Solven
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Irradiation Effect of Gamma-Rays on
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1-19 Development of Radiation Resis
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1-21 Alpha-Ray Irradiation Damage o
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1-23 Studies on Microstructure and
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1-25 Effect of Groundwater Radiolys
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1-27 Simulation of Neutron Damage M
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1-29 Irradiation Hardening in Ion-i
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1-31 Preparation of Anion-Exchange
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1-33 Radiation-Induced Graft Polyme
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JAEA-Review 2010-065 2. Environment
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2-02 Development of Zwitterionic Mo
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Modification of Hydroxypropyl Cellu
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The Recovery of Precious Metals Usi
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2-08 ESR Study on Carboxymethyl Chi
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JAEA-Review 2010-065 3. Biotechnolo
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JAEA-Review 2010-065 3-28 Electron
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JAEA-Review 2010-065 3-51 PET Studi
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3-02 Mutagenic effects of He ion pa
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3-04 Functional Analysis of Flavono
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3-06 Generation New Ornamental Plan
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3-08 Stability of Flower-colour Mut
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3-10 JAEA-Review 2010-065 Effects o
Page 84 and 85: 3-12 Producing New Gene Resources i
Page 86 and 87: 3-14 Production of Soybean Mutants
Page 88 and 89: Assessment of Irradiation Treatment
Page 90 and 91: 3-18 Effect of Different LET Radiat
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Page 94 and 95: 3-22 JAEA-Review 2010-065 FACS-base
Page 96 and 97: 3-24 Lethal Effects of Different LE
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Page 100 and 101: 3-28 Electron Spin Relaxation Behav
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Page 104 and 105: 3-32 Carbon-ion Microbeam Induces B
Page 106 and 107: 3-34 Biological Effects of Carbon I
Page 108 and 109: 3-36 Difference in Bystander Lethal
Page 110 and 111: 3-38 Analysis of Lethal Effect Medi
Page 112 and 113: 3-40 Irradiation with Carbon Ion Be
Page 114 and 115: 3-42 Expression of Two Gelsolins in
Page 116 and 117: 3-44 Analysis of Bystander Cell Sig
Page 118 and 119: 3-46 Quantitative Evaluation of Ric
Page 120 and 121: 3-48 Visualization of 107 Cd Accumu
Page 122 and 123: 3-50 Uniformity Measurement of Newl
Page 124 and 125: 3-52 Imaging and Biodistribution of
Page 126 and 127: 3-54 Improvement of Spatial Resolut
Page 128 and 129: 3-56 The Optimum Conditions in the
Page 130 and 131: 3-58 Evaluation of Cisplatin Concen
Page 132 and 133: 3-60 JAEA-Review 2010-065 Analysis
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Page 138 and 139: JAEA-Review 2010-065 4-39 Relations
Page 141 and 142: 4-01 Hydrogen Gasochromism of WO3 F
Page 143 and 144: 4-03 Synthesis of Single-Crystallin
Page 145 and 146: 4-05 Synergy Effects in Electron/Io
Page 147 and 148: Fabrication of Diluted Magnetic Sem
Page 149 and 150: 4-09 Gas Permeation Characteristics
Page 151 and 152: 4-11 Control of Radial Size of Poly
Page 153 and 154: 4-13 Behavior of N Atoms in Nitridi
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Page 157 and 158: Low Temperature Ion Channeling of F
Page 159 and 160: 4-19 Radiation-Induced Electrical D
Page 161 and 162: 4-21 Study on Cu Precipitation in E
Page 163 and 164: 4-23 Evaluation of Fluorescence Mat
Page 165 and 166: 4-25 Evaluation of the ZrC Layer fo
Page 167 and 168: 4-27 Structure Analysis of K/Si(111
Page 169 and 170: 4-29 LET Effect on the Radiation In
Page 171 and 172: 4-31 Stabilization of Measurement S
Page 173 and 174: Systematic Measurement of Neutron a
Page 175 and 176: 4-35 Measurement of Neutron Fluence
Page 177 and 178: 4-37 Evaluation of the Response Cha
Page 179 and 180: 4-39 Relationship between Internucl
Page 181 and 182: 4-41 Analysis of Radiation Damage a
Page 183 and 184: 4-43 Positive Secondary Ion Emissio
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4-45 JAEA-Review 2010-065 Ion Induc
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4-47 Fabrication of Dielectrophoret
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4-49 Fast Single-Ion Hit System for
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4-51 Development of Beam Generation
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JAEA-Review 2010-065 5. Status of I
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Operation of the AVF Cyclotron T. N
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Operation of Electron Accelerator a
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5-06 FACILITY USE PROGRAM in Takasa
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5-08 Radioactive Waste Management i
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Appendix 2 List of Related Patents
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Appendix 4 Type of Research Collabo
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表1.SI 基本単位基本量 SI
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