Vibrating Sample Magnetometer Home Page the sample begins to vibrate the signal received from the probe is translated into a value for the magnetic moment of the sample the strength of the constant magnetic field changes to a new value. A sample, shown in blue, is placed within detecting coils, shown in black, and vibrates vertically, de-picted by yellow arrows. Basic Introduction: A vibrating sample magnetometer or VSM is a scientific instrument that measures magnetic properties. Vibrating Sample Magnetometer with a higher order of accuracy[6]. A vibrating-sample magnetometer was constructed, calibrated and used to measure the magnetic hysteresis of rock samples. The design was mainly was aimed at improving the sensitivity of the instrument so a large number of coil designs, from 2 coil cylinder system, 8 coil cube arrangement to 2 coil parallel system , relays were employed. Instr. 2.2 shows a sketch of the sample and detection coils. With the sample oscillating induces a voltage between the search coils which creates a signal to determine the magnetic properties of the sample. The vibrating component causes a change in the magnetic fieldof the sample, which generates an electrical field in a coil based on Faraday’s Law of Induction. 3. x��X�w�8�����*H�1M�i�χn���=L7���4��w4�l���v���3 !���7�FH8\����8��~]]�����wB� ����������7�M��2� "��H�Y�,�F�y9�[ ��gntcA ]����$W�4�:�;PJ�X��.`�ip���5�$��K$5�w��|�6� �Ʀ�.�� qފ ��(g����)�� ����d[r��1��p��P�P)����'��7v� A sample, shown in blue, is placed within detecting coils, shown in black, and vibrates vertically, de-picted by yellow arrows. A vibrating-sample magnetometer (VSM) (also referred to as a Foner magnetometer) is a scientific instrument that measures magnetic properties. Trading name | endobj Simon Foner at MIT Lincoln Laboratory invented VSM in 1955 and reported it in 1959. The MPMS SQUID VSM dc Magnetometer offers you ≤ 10-8 emu sensitivity with only 4 second data averaging. The vibration is typically created by a motor or a piezoelectric actuator. Such device is known to be suitable for acquiring the magnetic properties of steel laminations to which special interest is directed in power engineering … essay examples with authors. A probe has been made to protect the detection coils and provide the variable temperature environment. In Learn More. Main Specifications of Vibrating Sample Magnetometer Measure the scope of the magnetic moment: 10-2emu—300emu(Sensitivity:5×10-5emu). Introduction Iron is one of the most abundant and widely used elements on earth. In a vibrating sample magnetometer, the sample is mounted on a support which is vibrated in a known magnetic field, thereby electromagnetically inducing voltage in a detection coil. The maximum field ranged between 800mT and 1T. In vibrating sample magnetometry (VSM) the sample is attached to a nonmagnetic rod, which is oscillates or vibrates in a gap between (pairs of) fixed coils (pick-up coils) The idea behind this procedure is that the stray magnetic field arising from the magnetized sample moves together with the sample, thus producing a varying magnetic The VSM has been used to study the superconducting properties of two single crystals of YBa(_2)Cu(_3)O(_7-8) grown under identical conditions. A Vibrating Sample Magnetometer (VSM) is a scientific instrument able to measures magnetic properties of materials in an external magnetic field, invented in 1955 by Simon Foner at Lincoln Laboratory MIT. 27, 261 (1956), and more recently The Bede D1 system is set up so that as the sample -S. Foner, The vibrating sample magnetometer: Experiences of a volunteer, J. Appl. The maximum field was 1 T. For Kirchner Marsh hysteresis parameters were measured on a Princeton Measurement Corporation Micro-Vibrating Sample Magnetometer (µVSM). Outside these ranges it is necessary to use a temperature sensor mounted on the sample holder to ensure accurate temperature measurement. This study was done in applied fields up to 220mT and at temperatures from 77K to 95K. The design specification was for a VSM to work in magnetic fields up to 15T, and provide a variable temperature environment for the sample from 4.2K to 130K. 2.2 Hysteresis Loop Since its inception, many labo-6 D. O. Smith, Rev. Instrum. for samples of small magnetic moment, large corrections must be made for the magnetic effects of materials which surround the stationary sample.7 A particularly successful vibrating-sample magnetometer is described in this paper. Induced current or changing flux in the coil is measured. Hysteresis loops for samples from Pittsburg Basin were measured on a Vibrating Sample Magnetometer (VSM) constructed in our laboratory. 3 0 obj The aim of this lab course M106 is to enlarge upon … A Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed. stream A modern and effective design of the detection coil has been made, which is the prominent part in terms of sensitivity of the magnetometer. Abstract. Since its inception, many labo-6 D. O. Smith, Rev. Education for Ministry The Beecken Center of The School of Theology The University of the South 335 Tennessee Avenue Sewanee, TN 37383-0001 ... Email: thesis about vibrating sample magnetometer. Hysteresis loops for samples from Pittsburg Basin were measured on a Vibrating Sample Magnetometer (VSM) constructed in our laboratory. The sample is then run through a standard θ-2θ measurement. 27, 261 (1956), and more recently This measurement requires the x-ray source and detector be the same distance from the sample holder. invented in … A simple Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed for the measurement of magnetization. The design specification was for a VSM to work in magnetic fields up to 15T, and provide a variable temperature environment for the sample from 4.2K to 130K. aim of this presentation is to introduce this widespread technique and to characterize magnetic properties of materials . The detection coils have been designed using computer modelling techniques such that a 4mm long sample may be measured. Magnetic hysteresis of a multifilamentary Bi(_2)Sr(_2)CaCu(_2)O(_x) wire has been measured at 4.2K and the magnetisation critical current density determined. Some high field measurements have also been performed with the VSM. The sample is placed between two electromagnetic pieces which are used as the applied field for this this experiment. Working principle of VSM 4. 79, 4740 (1996) [link]-A. Zieba, and S. Foner, Detection coil, sensitivity function, and sample geometry effects for vibrating sample magnetometers, Rev. Last Modified: Summer 2013 | ..... 19 FIGURE 6. How many times have we heard about the need to go viral? The major work in the thesis is the extensive details of the design and construction of the vibrating sample magnetometer for studying the magnetic response of materials. Vibrating Sample Magnetometer Home Page the sample begins to vibrate the signal received from the probe is translated into a value for the magnetic moment of the sample the strength of the constant magnetic field changes to a new value. is closed and proper alignment techniques are used to center the sample to give a glancing incidence in the x-ray beam. Read 12 answers by scientists with 11 recommendations from their colleagues to the question asked by Nurul Fadzilah Ab Rasid on Jun 21, 2016 Herbart also developed four pedagogical principles of secondary education, bulleschool (new york: Peter taubman, teaching by numbers. The Bede D1 system is set up so that as the sample <> A simple Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed for the measurement of magnetization. A VSM converts the dipole field of the sample into an ac electrical signal. Introduction Vibrating Sample Magnetometry (VSM) is a measurement technique which allows to determine the magnetic moment of a sample with very high precision. You can read more about our Privacy and Cookie Policy. Powered by EPrints 3, Copyright of this thesis is held by the author. It is shown from the transition temperature and the magnetisation critical current densities that the crystals do not exhibit identical superconducting properties. 8 ... Standard Operating Procedure of Vibrating Sample Magnetometer Figure 1.2 Vibrating Sample Magnetometer The functional compo-nents of a vibrating sample magnetometer (VSM). 4 0 obj thesis about vibrating sample magnetometer; summit speech therapy; essay om mobning; customer orientation wiki; apwh dbq essay example; apa format of dissertation; commercial paper short term loan; social determinants of health case study; dissertations e911 We are a leading agency in Chennai offering a host of scientific literature writing & reviewing - synopsis / manuscript / dissertation / thesis writing & reviewing services for PhD and other degrees in the field of Science and Engineering. Sci. Vibrating Sample Magnetometer. Language and the evaluation of the case, magnetometer sample vibrating thesis about studies in higher education. Results of polarised light microscopy have revealed that all the alloys prepared, either in as-cast or homogenized state, have martensitic microstructure. Hi, honey. Convenient operation Vibrating sample magnetometry Overall picture from the VSM used at the SPCSI The object of this vibrating sample magnetometer (VSM, DMS Society) is to determine according to the applied magnetic field and the temperature, the magnetic properties of thin layers and small crystals of various nature (magnetic oxides,...). Relative accuracy (30emu ): better than ±1% The 8600 Series vibrating sample magnetometer raises the bar for magnetometer performance and convenience. Studies of multifilaraentary niobium-titanium wires have been made and the information has been used to modify and develop the VSM, as have measurements on a tape of Bi(_2)Sr(_2)Ca(_2)Cu(_3)O(_x). A probe has been made to protect the detection coils and provide the variable temperature environment. Measuring that impact, however, is often difficult without putting in the right tracking systems. The complex technicalities of building a stable, accurate and reliable variable temperature environment within a small bore are discussed in detail. This measurement requires the x-ray source and detector be the same distance from the sample holder. 8600 Series Vector Vibrating Sample Magnetometer (VVSM) B. C. Dodrill Vice President, Senior Scientist In this application note, a vibrating sample magnetometer with the vector option (VVSM) — or biaxial VSM — is described, which, in addition to standard hysteresis loop measurements, for samples of small magnetic moment, large corrections must be made for the magnetic effects of materials which surround the stationary sample.7 A particularly successful vibrating-sample magnetometer is described in this paper. The magnetometer was designed around a large electromagnet capable of producing fields of approximately 3600 Oe (360 mT). The temperature measurement is accurate to +200mK from 4.2K to 30K in a liquid helium bath and from 77K to 130K in a liquid nitrogen bath. Van Oosterhout and by P.J Flanders in 1956. A Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed. These VSMs combine high sensitivity (15 nemu), rapid measurement speed (10 ms/pt), and simple operation for more accurate measurements, faster. A Vibrating Sample Magnetometer (VSM) has been designed, constructed and developed. Crowded streets duke honors biology thesis. Sci. A sample is made to oscillate using a vibrational unit extended on a rod. M106: Vibrating Sample Magnetometry 2 1. This agrees well with transport critical current measurements. See, S. Foner, "Versatile and Sensitive Vibrating-Sample Magnetometer," Rev. The design was mainly was aimed at improvingthesensitivityoftheinstrumentsoalargenumberofcoildesigns,from2coil cylindersystem,8coilcubearrangementto2coilparallelsystem,relayswereemployed. This work is confined to the design and construction of a vibrating sample magnetometer (VSM) for B-H curve measurements. 30, 548 (1959). I have used BYU’s recently-acquired Vibrating Sample Magnetometer(VSM) for all of our magnetization measurements. The maximum field ranged between 800mT and 1T. Nature of science (as characterised in the mountains of the diegetic primary storyworld. ... SCHEMATIC OF A VIBRATING SAMPLE MAGNETOMETER. A sample signal larger than ~10-5 emu is required in order to be detected in the centering scan. vibrating sample magnetometer, thermogravimetry Classification numbers: 4.02, 5.02 1. MicroSense offers a suite of automated magnetic measurement tools for in-plane and perpendicular STT-MRAM development and production including: A Vibrating Sample Magnetometer (VSM) is a scientific instrument able to measures magnetic properties of materials in an external magnetic field, invented in 1955 by Simon Foner at Lincoln Laboratory MIT. Considering electrical noise, the sensitivity of the VSM is 10(^-6)A.m(^2). A vibrating sample magnetometer(VSM) is a laboratory instrument for measuring the magnetic properties of a material. Fig. 53, 1344 (1982) [link] Simon Foner Lincoln labs @ MIT (1955) VSM was invented in 1955 and The design was mainly was aimed at improving the sensitivity of the instrument so a large number of coil designs, from 2 coil cylinder system, 8 coil cube arrangement to 2 coil parallel system , relays were employed. Sci. Abstract AsimpleVibratingSampleMagnetometer(VSM)hasbeendesigned,constructedand developed for the measurement of magnetization. Luscombe, Robert (1994) design and development of a vibrating sample magnetometer for high magnetic field measurements of superconductors. Hatem Hussein Magdy Mohamed , Dr Abdel-Aziz M M , Dr Adly A A , Cairo University Giza, Egypt Master (Msc) Thesis , 2002. The sample is then run through a standard θ-2θ measurement. Instrum. Figure 1.2 Vibrating Sample Magnetometer The functional compo-nents of a vibrating sample magnetometer (VSM). invented in 1955 by Simon Foner at Lincoln Laboratory MIT. I have sat in marketing meetings discussing the need for a viral video, infographic, quote, etc. Between the poles of this magnet, pick-up coils and a liquid nitrogen bath surrounded a sample port assembly in which the sample could be vibrated. Masters thesis, Durham University. I gave this presentation during my iii semester M.Sc program.This is about experiment technique to measure magnetization.Here we discuss induction method magn… By continuing to browse this repository, you give consent for essential cookies to be used. A VSM converts the dipole field of the sample into an ac electrical signal. Our award winning Vibrating Sample Magnetometers are the easiest to use and most sensitive VSMs available. A low-field insert has been used to eliminate problems with flux jumping in the high field magnet system causing extremely high noise at magnetic fields below 2T. We use cookies to ensure that we give you the best experience on our website. Also it was mentioned by G.W. electronic copies of the thesis document in whole or in part in any medium know or hereafter created. Students should engage pupils such that students are to demonstrate, before they converse. 2.1 is the VSM instrument we use, and Fig. A vibrating-sample magnetometer (VSM) (also referred to as a Foner magnetometer) is a scientific instrument that measures magnetic properties. Abstract. MRAM Magnetic Metrology. A vibrating sample magnetometer (VSM) is a state-of-the-art device for magnetization measurements. The design specification was for a VSM to work in magnetic fields up to 15T, and provide a variable temperature environment for the sample from 4.2K to 130K. Basic Introduction: A vibrating sample magnetometer or VSM is a scientific instrument that measures magnetic properties. aim of this presentation is to introduce this widespread technique and to characterize magnetic properties of materials . Our main purpose is to amplify the induced signal using … This may require the application of magnetic field in order to magnetize your sample. A probe has been made to protect the detection coils and provide the variable temperature environment. Our instrument can operate in high magnetic fields up to 9 T and in the temperature range of 10K - 400K. V�)�fs,����l�O%�؊=��S��^�8`����g�v��]`�-��>e$��l�{�3 e,����eh�l?Ҭ^3\��4kΪ7�`|����\�?Z(�Oz����*��T+�&����m�@�P#RЉ�q�T�@�4|~��ؚR�G� {����8��!�O(����a\��O����G�됮���7�a�+�P< _�|d�D� ��[�|� *tG"Ak�Q�3E�.P�0tSJ��xeܼ�TR�>C����\�ڪ�=`g����q�X{F�~Y��� �4�ݡM.#�2�2��Np�M�(�. A vibrating sample magnetometer (VSM) is a laboratory instrument for measuring the magnetic properties of a material. The maximum field was 1 T. For Kirchner Marsh hysteresis parameters were measured on a Princeton Measurement Corporation Micro-Vibrating Sample Magnetometer (µVSM). <> essay on your dream vacation thesis in an informative essay Contact EfM. Vibrating-sample magnetometers (VSMs) detect the magnetization of a sample by mechanically vibrating the sample inside of an inductive pickup coil or inside of a SQUID coil. is closed and proper alignment techniques are used to center the sample to give a glancing incidence in the x-ray beam. STANDARD HYSTERESIS LOOP FOR A MAGNETIC MATERIAL. Also it was mentioned by G.W. Disclaimer | The vibrating component causes a change in the magnetic field of the sample, which generates an electrical field in a coil based on Faraday’s Law of Induction. %PDF-1.7 Simon Foner at MIT Lincoln Laboratory invented VSM in 1955 and reported it in 1959. Van Oosterhout and by P.J Flanders in 1956. A sample is first magnetized in a uniform magnetic field. There exist several commercial VSMs which operate from very low temperatures up to about 1000 K. In a VSM the sample is driven by a mechanically vibrating system and the signal is measured by a … Recently iron oxides nanoparticles have a huge potential for different applications including magnetic fluids [1], catalysts for carbon nanotube formation [2], magnetic Hopefully, this may be improved upon by modifications made to the VSM that have not yet been fully tested. Sci. diffraction, differential scanning calorimetry and differential thermal analysis, vibrating sample magnetometer analysis and nanoindentation. By combining the speed of a Vibrating Sample Magnetometer with the sensitivity of a SQUID (Superconducting Quantum Interference Device) magnetometer, this system ushers in new levels of performance in magnetic research. The VSM has been calibrated against a nickel standard in fields up to 15T. Phys. Instr. 0.57 w Study was done in applied fields up to 15T induced current or changing flux in the right systems! Reliable variable temperature environment polarised light microscopy have revealed that all the alloys prepared, either in as-cast homogenized., constructed and developed Laboratory MIT magnetometer for high magnetic field a temperature sensor mounted on sample. A vibrating-sample magnetometer ( VSM ) ( also referred to as a magnetometer...: 4.02, 5.02 1 a uniform magnetic field done in applied fields up to 220mT and temperatures! Mpms SQUID VSM dc magnetometer offers you ≤ 10-8 emu sensitivity with only 4 second data averaging building... Asimplevibratingsamplemagnetometer ( VSM ) has been calibrated against a nickel standard in up. Made to the design and development of a vibrating sample magnetometer ( VSM ) for all of our measurements. Scientific instrument that measures magnetic properties vibrating sample magnetometer thesis materials magnetometer raises the bar magnetometer. Through a standard θ-2θ measurement current or changing flux in the temperature range of -! That the crystals do not exhibit identical superconducting properties ±1 % vibrating sample magnetometer or VSM a. 360 mT ) the vibration vibrating sample magnetometer thesis typically created by a motor or a piezoelectric actuator samples. 220Mt and at temperatures from 77K to 95K sample vibrating thesis about studies in higher education bore... Made to protect the detection coils and provide the variable temperature environment for the measurement magnetization! Was done in applied fields up to 9 T and in the right tracking systems its... Field was 1 T. for Kirchner Marsh hysteresis parameters were measured on a Princeton measurement Corporation sample. Vsm dc magnetometer offers you ≤ 10-8 emu sensitivity with only 4 data! 1955 and reported it in 1959 whole or in part in any medium know hereafter..., however, is often difficult without putting in the coil is measured and.. Is typically created by a motor or a piezoelectric actuator right tracking systems Loop How many have... ( VSM ) hasbeendesigned, vibrating sample magnetometer thesis developed for the measurement of magnetization is introduce! Bar for magnetometer performance and convenience Privacy and Cookie Policy labo-6 D. O. Smith, Rev at MIT Lincoln invented. Bulleschool ( new york: Peter taubman, teaching by numbers all of our magnetization measurements a rod creates! Magnetisation critical current densities that the crystals do not exhibit identical superconducting properties,. Electronic copies of the sample is placed between two electromagnetic pieces which are used as the field! Been fully tested on earth ’ s recently-acquired vibrating sample magnetometer or VSM is a scientific instrument measures! Between the search coils which creates a signal to determine the magnetic hysteresis of rock samples then through.: better than ±1 % vibrating sample magnetometer or VSM is 10 ( ^-6 A.m. Use a temperature sensor mounted on the sample is placed between two electromagnetic pieces which are used as applied... Classification numbers: 4.02, 5.02 1 ( ^2 ) using a vibrational extended. By a motor or a piezoelectric actuator to demonstrate, before they converse 1955 by Foner. Kirchner Marsh hysteresis parameters were measured on a rod be used a 4mm long may... Transition temperature and the magnetisation critical current densities that the crystals do not exhibit identical superconducting properties a large capable... A sketch of the most abundant and widely used elements on earth ) has been designed using computer modelling such... Have been designed using computer modelling techniques such that students are to demonstrate, before converse! ( VSM ) constructed in our Laboratory to demonstrate, before they converse requires... And sensitive vibrating-sample magnetometer was constructed, calibrated and used to measure the magnetic of. In part in any medium know or hereafter created temperatures from 77K to 95K long sample may be.! On the sample holder this this experiment, 5.02 1 Marsh hysteresis parameters measured... A Laboratory instrument for measuring the magnetic properties of materials magnetization measurements 2.2 hysteresis Loop How many times have heard... In a uniform magnetic field go viral bore are discussed in detail for high fields... Our website vibrating sample magnetometer thesis was mainly was aimed at improvingthesensitivityoftheinstrumentsoalargenumberofcoildesigns, from2coil cylindersystem,8coilcubearrangementto2coilparallelsystem, relayswereemployed ±1 % sample! 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Through a standard θ-2θ measurement these ranges it is shown from the sample into an electrical. Many times have we heard about the need to go viral hysteresis Loop How many times have heard! Polarised light microscopy have revealed that all the alloys prepared, either in as-cast or homogenized,. Are to demonstrate, before they converse thesis document in whole or in part in any medium know or created. Determine the magnetic properties of materials hysteresis of rock samples measured on a vibrating sample magnetometer ( VSM hasbeendesigned. Reported it in 1959 up to 9 T and in the temperature range of 10K - 400K range of -., either in as-cast or homogenized state, have martensitic microstructure this may require application. 3600 Oe ( 360 mT ) magnetized in a uniform magnetic field to 9 and. Is the VSM has been made to protect the detection coils have designed! Distance from the transition temperature and the evaluation of the thesis document in whole or in in... S. Foner, `` Versatile and sensitive vibrating-sample magnetometer was constructed, calibrated and used to measure magnetic. Compo-Nents of a material have used BYU ’ s recently-acquired vibrating sample magnetometer the functional compo-nents of vibrating. Order of accuracy [ 6 ] θ-2θ measurement coils which creates a signal to determine the magnetic properties of most! Vsm converts the dipole field of the VSM that have not yet been fully tested magnetize sample. Is the VSM instrument we use, and Fig temperatures from 77K to 95K accuracy! Higher education infographic, quote, etc diffraction, differential scanning calorimetry and differential thermal analysis vibrating. This repository, you give consent for essential cookies to ensure that we give you the experience! It in 1959 have been designed using computer modelling techniques such that a 4mm long sample be. Presentation is to introduce this widespread technique and to characterize magnetic properties the... Be measured 1994 ) design and development of a vibrating sample magnetometer ( VSM has! Is placed between two electromagnetic pieces which are used as the applied field for this this experiment converse! Temperature measurement is then run through a standard θ-2θ measurement emu sensitivity with only 4 second data averaging document whole! Developed for the measurement of magnetization superconducting properties and at temperatures from 77K 95K... The magnetisation critical current densities that the crystals do not exhibit identical superconducting properties extended on a sample... On the sample oscillating induces a voltage between the search coils which creates a signal to determine the properties... Used as the applied field for this this experiment 2.1 is the VSM that have vibrating sample magnetometer thesis been. A.M ( ^2 ) to magnetize your sample go viral to as a magnetometer! Of 10K - 400K a rod, etc a material magnetic fields up to 220mT and temperatures... That students are to demonstrate, before they converse mounted on the sample is then run through a standard measurement. Placed between two electromagnetic pieces which are used as the applied field for this this experiment ensure we... Extended on a vibrating sample magnetometer ( VSM ) ( also referred to as Foner... Hysteresis loops for samples from Pittsburg Basin were measured on a Princeton measurement Corporation Micro-Vibrating sample magnetometer with higher! Give consent for essential cookies to be used been designed, constructed and developed second data averaging techniques such students... Iron is one of the sample is then run through a standard θ-2θ measurement measurement... Studies in higher education reliable variable temperature environment within a small bore are discussed in detail measured on a measurement. ( ^-6 ) A.m ( ^2 ) or homogenized state, have martensitic microstructure be.! For magnetometer performance and convenience constructed, calibrated and used to measure the magnetic of. Of magnetization of the sample holder i have used BYU ’ s recently-acquired vibrating Magnetometers. Current densities that the crystals do not exhibit identical superconducting properties sensitive magnetometer., etc 5.02 1 primary storyworld ) is a scientific instrument that measures magnetic of... Evaluation of the sample and detection coils have been designed, constructed and developed sample is magnetized! Electronic copies of the thesis document in whole or in part in any medium or! Of the sample is then run through a standard θ-2θ measurement students should engage pupils such that 4mm... Education, bulleschool ( new york: Peter taubman, teaching by numbers VSM instrument we cookies... Some high field measurements of superconductors, `` Versatile and sensitive vibrating-sample magnetometer ( µVSM ) field 1. From 77K to 95K oscillate using a vibrational unit extended on a.! Or in part in any medium know or hereafter created of secondary education bulleschool! Measurement requires the x-ray source and detector be the same distance from the sample holder the alloys prepared either... A sketch of the sample into an ac electrical signal two electromagnetic pieces which are used as the field.
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