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Journal articles on the topic 'HE-PIXE'

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Published: 5 April 2025

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1

Vadrucci, M., A. Mazzinghi, A. Gorghinian, L. Picardi, C. Ronsivalle, C. Ruberto, and M. Chiari. "Analysis of Roman Imperial coins by combined PIXE, HE-PIXE and μ-XRF." Applied Radiation and Isotopes 143 (January 2019): 35–40. http://dx.doi.org/10.1016/j.apradiso.2018.10.016.

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2

Kabir, M. Hasnat. "Particle Induced X-ray Emission (PIXE): A Tool of Qualitative Elemental Analysis for Biological Sample." Rajshahi University Journal of Science 39 (October 9, 2013): 1–10. http://dx.doi.org/10.3329/rujs.v39i0.16538.

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The facility of ion beam laboratory at Kochi University of Technology (KUT) has been extended by installing the Particle Induced X-ray Emission (PIXE) technique, in order to provide qualitative and quantitative elemental analysis and in-air micro-PIXE analysis. This paper is a description of PIXE setup and its application in biological sample for qualitative elemental analysis. The energy calibration of the system shows linearity. The minimum detection limit indicates that the system has good detection limit. The homogeneity shows uniformity of the sample itself and the internal standard within the sample. A 4 MeV He++ ion beam was used to analyze shellfish samples. Analyzing samples, it was found that the lower Z elements as well as some trace elements were detected. DOI: http://dx.doi.org/10.3329/rujs.v39i0.16538 Rajshahi University J. of Sci. 39, 01-10 (2011)

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3

Sakurai, Shiro, and Masae Yukawa. "Application of a thin metallic film evaporated onto a sample surface as an internal Standard for determination of trace elements in biological samples by PIXE." International Journal of PIXE 07, no. 03n04 (January 1997): 201–9. http://dx.doi.org/10.1142/s0129083597000230.

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The purpose of this study is to analyze quantitatively trace elements in human organs without decomposing samples. A palladium thin layer was deposited onto a sample on carbon adhesive tape using a metal ion sputtering equipment. The Pd film was used as an internal standard to determine concentrations of trace elements in human liver. Bovine Liver was applied as the reference standard. Five elements Cu , Zn , Mn , Se and Fe were measured by this method. The values of Copper, Zinc and iron concentrations determined by PIXE using this method agree well with those by ICP-AES. It can he asserted that this method is quite useful in the study of non-destructive PIXE analysis.

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4

HARADA, S., S. EHARA, K. ISHII, H. YAMAZAKI, S. MATSUYAMA, T. KAMIYA, T. SAKAI, et al. "INCREASING ANTITUMOR EFFECTS OF CHEMORADIOTHERAPY BY DRUG EFFLUX INHIBITION WITH ENCAPSULATED ANTI-RLIP-76." International Journal of PIXE 21, no. 01n02 (January 2011): 39–46. http://dx.doi.org/10.1142/s0129083511002148.

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Microencapsulated anti-RLIP76 was tested in vivo using C 3 He / J mice to determine the increasing of antitumor effects by chemotherapeutic agent efflux inhibition during chemoradiotherapy. Microcapsules were produced by spraying a mixture of 3.0% hyaluronic acid, 2.0% alginate, 3.0% H 2 O 2, and 0.3 mmol carboplatin onto a mixture of 0.3 mol FeCl 2 and 0.15 mol CaCl 2. Microcapsules were subcutaneously injected into MM46 tumors previously inoculated into the left hind legs of C 3 He / J mice. Subsequent radiotherapy consisted of tumor irradiation with 10 Gy or 20 Gy 60 Co . The antitumor effects of microcapsules were tested by measuring tumor size and monitoring tumor growth. Three types of adverse effects were considered: fuzzy hair, loss of body weight, and mortality. Carboplatin levels were monitored using particle-induced X-ray emission (PIXE) and a micro-PIXE camera. Anti-RLIP76 inhibited the efflux of carboplatin from tumor tissue, which led to an increase in the concentration of carboplatin. Higher carboplatin concentration significantly increased the combined antitumor effect of radiation and chemotherapy. A significant decrease in adverse effects was also observed with microencapsulated anti-RLIP76.

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5

NAKAE, T., R. TAKAHASHI, T. NOMURA, Y. NAKAI, H. KAGEYAMA, N. SHIMATANI, T. AWATA, et al. "APPLICATION OF PIXE- AND RBS-CHANNELING TO INVESTIGATIONS ON THE CHARACTERIZATION OF SINGLE CRYSTAL STAINLESS STEEL." International Journal of PIXE 04, no. 02n03 (January 1994): 193–200. http://dx.doi.org/10.1142/s0129083594000234.

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The characterization of the single crystal of type 304 stainless steels was performed by using particle induced x-ray emission and Rutherford backscattering spectroscopy with channeling technique (PIXE-C and RBS-C). They proved that the solution annealing process is absolutely necessary for production of a good single crystal of stainless steels. They are also shown that the positions of P atoms before He irradiation were mostly substitutional sites of fcc structure and that MeV He ion irradiation induced segregation of Si and S atoms to the (110) surface.

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6

RAISANEN, J. "EXPERIMENTAL ARRANGEMENTS FOR NON-VACUUM BIO-PIXE." International Journal of PIXE 02, no. 03 (January 1992): 339–50. http://dx.doi.org/10.1142/s0129083592000361.

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The experimental arrangements used for external beam PIXE analysis of biomedical samples are surveyed. Emphasis is given to the instrumental and physical aspects of the various measuring systems. Special features of the setups and other means of obtaining optimal measuring conditions play an important role in many cases. The proper choice of bombarding proton energy and the minimization of the system background radiation make significant contributions to the sensitivity obtainable by the technique. Parameters such as exit foil materials, setup cons- truction materials, gas atmosphere used (eg. He, air), beam current normalization and system geometry are of specific interest. Some typical recent examples in the field are given.

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7

Hietel, B., N. Menzel, and K. Wittmaack. "RBS control of the proton fluence in external PIXE analysis using a He atmosphere." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 109-110 (April 1996): 139–43. http://dx.doi.org/10.1016/0168-583x(95)00895-0.

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8

INOMATA, K., K. ISHII, H. YAMAZAKI, S. MATSUYAMA, Y. KIKUCHI, Y. WATANABE, A. ISHIZAKI, et al. "DEVELOPMENT OF AN IN-AIR ON/OFF AXIS STIM SYSTEM FOR QUANTITATIVE ELEMENTAL MAPPING." International Journal of PIXE 16, no. 03n04 (January 2006): 149–56. http://dx.doi.org/10.1142/s0129083506000939.

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We have developed an in-air on/off axis STIM for simultaneous density mapping with PIXE and RBS, which will be useful for damage-monitoring in cell analysis and for yield correction based on the thickness distribution of X-ray self-absorption in samples. The in-air on/off axis STIM system provides a mass concentration map in the cell analysis. In the system, a thin scattering foil is placed downstream of the sample and scattered protons are detected by a Si -PIN photodiode set at 30 degrees with respect to the beam axis. These components are set in a He -gas-filled chamber to reduce energy loss, scattering and sample damage. Using this system, areal density mapping is carried out for RBL-2H3 cells simultaneously with PIXE and RBS. Correction for self-absorption is performed and areal density map of elements is converted into a mass-concentration map using the measured matrix density. The areal density distribution of P corresponds to that of matrix and mass concentration of P is uniform in the cell region. On the other hand, Br is concentrated in the nucleus, even in the mass concentration map. The Br accumulation in the nucleus is first confirmed in mass concentration using the on/off axis STIM and PIXE system. The in-air on/off STIM system will be effective for monitoring changes in cell density during beam irradiation.

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9

MASSINGHAM, G., R. ARSLANOGLU, F. E. GAUNTLETT, M. S. RIHAWY, R. W. SMITH, A. S. CLOUGH, M. BRADEN, and M. P. PATEL. "SCANNING ION MICROBEAM ANALYSIS OF DIFFUSION IN IN-MOUTH DRUG RELEASE POLYMERS." International Journal of PIXE 15, no. 03n04 (January 2005): 161–67. http://dx.doi.org/10.1142/s0129083505000477.

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With the aim of characterizing polymer-based drug delivery systems a combination of Scanning MeV 3 He microbeam Nuclear Reaction, Backscattering and Particle Induced X-ray Emission (PIXE) techniques has been developed. This, together with gravimetric and UV techniques has been applied to characterize both water infusion and drug effusion for three in-mouth polymer–drug systems. Preliminary results are presented from the exposure of polymers, containing drug at a level of 9% by weight of the dry polymer, to both pure water and a phosphate buffered saline solution at 37°C.

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10

HOLLANDS, R., A. S. CLOUGH, and P. MEREDITH. "IMPROVEMENTS IN TECHNIQUE FOR DETERMINING THE SURFACTANT PENETRATION IN HAIR FIBRES USING SCANNING ION BEAM ANALYSES." International Journal of PIXE 09, no. 03n04 (January 1999): 227–33. http://dx.doi.org/10.1142/s0129083599000322.

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The penetration abilities of surfactants need to be known by companies manufacturing hair-care products. In this work three complementary techniques were used simultaneously - PIXE, NRA and RBS - to measure the penetration of a surfactant, which had been deuterated, into permed hair fibres. Using a scanning micro-beam of 2MeV 3 He ions 2-dimensional concentration maps were obtained which showed whether the surfactant penetrated the fibre or just stayed on the surface. This is the first report of the use of three simultaneous scattering techniques with a scanning micro-beam.

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11

KOHNO, M., K. YOSHIDA, K. MORITANI, K. NORIZAWA, M. NAITO, K. KITAO, K. ENAMI, H. MAEDA, H. KASAJIMA, and J. TAKADA. "Carbonized Treatment of Biological Samples for High Beam Current PIXE - its advantages and problems -." International Journal of PIXE 06, no. 01n02 (January 1996): 155–66. http://dx.doi.org/10.1142/s0129083596000168.

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Trace elements in ancient Chinese ink, ancient Chinese paper of sutras, ancient Japanese paper of manuscripts, modem Japanese paper and some plants were analyzed by PIXE. Part of these samples were carbonized at 400°C in vacuum of several torrs. These carbonized biological samples were able to resist very high current of 2 MeV He + (500 nA/mm 2 on target) for more than 30 minutes. The observation indicates that the carbonized samples save the measuring time by using high beam current. But mercury and sulfur contained in red Chinese ink on the paper were lost through the carbonization and lead in the same sample was lost by heating up during the measurement on condition that it was irradiated by 2 MeV He + (50 nA/mm 2 to 230 nA/mm 2). A small part of iron was gradually lost on the same condition. Under 230 nA/mm 2, a small portion of calcium was lost but no portion of chromium was lost.

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12

Houdayer, A. J., P. Bélanger, I. Brissaud, J. E. Crawford, H. Dautet, G. Gagnon, J. K. P. Lee, J. Obert, J. Pinard, and K. Scholberg. "An investigation of laser desorption of Au by PIXE and RBS techniques using a He beam." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 45, no. 1-4 (January 1990): 632–36. http://dx.doi.org/10.1016/0168-583x(90)90915-h.

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13

KOHNO, Masuchika, Koji YOSHIDA, Kimikazu MORITANI, Osamu TAKAHASHI, Kazuyuki ENAMI, Toshihide UCHIDA, and Fumitaka NISHIYAMA. "Continuous Background Originated From Neutrons By 65Cu(p,n)65Zn Under 4 MeV Protons — A problem on detecting trace elements in old copper alloys by PIXE." International Journal of PIXE 08, no. 02n03 (January 1998): 175–83. http://dx.doi.org/10.1142/s0129083598000212.

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EDS-PIXE is a very useful and easy method for detecting trace elements in ancient materials. However, relatively high continuous background is observed, when old copper alloys are measured under 4 MeV protons. The background makes the detection limits of trace metallic elements such as Au , Ag , As , Sn , Sb and Pb in these alloys worse. The cause of the high background was investigated using a Si ( Li ) detector, a pure- Ge detector and a 3 He neutron counter, and it was found that the continuous background level is correlated with the amount of neutron released from 65 Cu ( p , n )65 Zn reaction.

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14

MIURA, Y., A. SUWABE, M. TAWARA, R. ENDO, K. IKEDA, and K. SERA. "SERUM TRACE ELEMENTS AS NUTRITIONAL MARKERS IN A CASE WITH ACUTE AORTIC DISSECTION." International Journal of PIXE 18, no. 01n02 (January 2008): 61–67. http://dx.doi.org/10.1142/s0129083508001351.

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Serum trace elements were analyzed by PIXE method in a patient with acute aortic dissection during the supportive process by a Nutrition support team (NST). The patient was a 53-year old male who suffered from acute aortic dissection on March 1, 2007. He received emergent Bentall operation and bow pars total displacement. Since he suffered from diarrhea as a result of hypoalbuminemia and bowel dysfunction, enteral nutrition was not sufficient to maintain adequate intake. Therefore, we also used parenteral nutrition until the 97th disease day. Afterwards, the patient managed only with enteral nutrition. We measured serum trace elements during these periods. Serum trace elements such as Fe , Zn and Se were preserved within normal ranges. On the other hand, Cu gradually decreased until the 54th disease day (44 μg/l) and stayed in the lower levels around the detection limit until the 109th disease day. Thereafter, Cu slightly increased and reached 117 μg/l on the 131st disease day (reference range of serum Cu in adult males: 700~1,300 μ g/l ). It was suggested that the serum levels of these trace elements might reflect the nutritional stages of the patient and could be useful as clinical markers for nutritional therapies.

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15

KAWAI, JUN, and KUNIKO MAEDA. "VERTICAL BEAM PIXE FOR IN SITU ANALYSIS OF LIQUIDS." International Journal of PIXE 04, no. 02n03 (January 1994): 147–54. http://dx.doi.org/10.1142/s0129083594000192.

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We have constructed a vertical beam line for in situ liquid analysis. Details of this beam line, the analytical results of milk and tea, and the detection limits of this beam line for 8-MeV He+ ion beam are described.

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16

SHIJIE, LIU, WANG JIANG, HU ZAOHUEI, XIA ZHONGHUONG, GAO ZHIGIANG, and WANG XUEMEI. "ION CHANNELING AND PIXE STUDIES OF S IMPLANTATION IN GaAs." International Journal of PIXE 02, no. 02 (January 1992): 151–59. http://dx.doi.org/10.1142/s0129083592000142.

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GaAs (100) crystals were implanted with 100 keV S+ to a dose of 3×1015 cm−2 in a nonchanneling direction at room temperature, and treated with rapid thermal annealing (RTA). He+ Rutherford backscattering and particle-induced X-ray emission in channeling mode in combination with transmission electron microscopy (TEM) were used to study the damage and the lattice location of S atoms. It is revealed that the RTA at 950 °C for 10 sec has resulted in a very good recovery of crystallinity with a few residual defects in the form of dislocation loops, and a very high substitutionality (~90%). The activation efficiency and the Hall mobility of the implanted samples are found to be low after the electrical measurements. Based on these results an extended dopant diffusion effect for the residual defects and a correlation between the electrical properties and defect complexes are suggested.

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17

Raicu, B., H. Bakhru, S. Fesseha, and W. M. Gibson. "A New Application of Rbs-Pixe with High Energy Microbeam." MRS Proceedings 69 (1986). http://dx.doi.org/10.1557/proc-69-293.

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AbstractA beam of 2 MeV He+ ions with a diameter of 2 microns was used to perform Rutherford backscattering (RBS) and particle induced x-ray emission (PIXE) analysis on large residual defects formed by high dose arsenic (As) ion implantation and furnace annealing. Research results concerning contamination in implanted silicon wafers generated by primary beam sputtering, inadequate wafer transport system, and other technological factors are presented.

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18

Buchal, Ch, S. Mantl, and D. K. Thomas. "Channeling Investigation of the Lattice Location of Ti in Ti-Implanted Optical Waveguides in LiNbO3." MRS Proceedings 100 (1988). http://dx.doi.org/10.1557/proc-100-317.

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ABSTRACTIon channeling of 3 MeV He ions has been employed to investigate the lattice location of Ti in Ti implanted optical waveguides in LiNbO3 after Solid Phase Epitaxy. Particle-Induced X-rays (PIXE) from Ti at 4.5 keY (K∝) and Nb at 2.2 keV (L∝β) and 16.6 keV (K∝) have been detected and analyzed simultaneously.All scans yield similar behaviour of the Ti and the Nb signals. This provides clear evidence, that within well annealed implanted waveguides the Ti4+ and the Nb5+ ions occupy equivalent lattice positions.

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19

Gillon, A., C. Koumeir, C. P. Meziani, F. Haddad, G. Louarn, V. Metivier, Q. Mouchard, G. Salaün, and N. Servagent. "Elemental analysis by XRF and HE-PIXE on silver coins from the 16th-17th centuries and on a gilded crucifix from the 12th century." European Physical Journal Plus 138, no. 10 (October 24, 2023). http://dx.doi.org/10.1140/epjp/s13360-023-04570-5.

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