Abstract: A ferrite-containing plastic composition including a ferrite powder having an average particle size of from 100 to 500 .mu.m in an amount of at least 80% by weight based on the entire composition, a plastic and a small amount of additives.

Abstract: A cladded magnet twister device for a microwave/millimeter wave source is comprised of a plurality of polygonal similarly magnetized magnet segments. Each magnet segment is displaced radially in equal angular segments along the central axis relative to its neighboring segment to provide a transverse helical field and is comprised of a relatively short length of an array of bar magnets, cladding magnets, bucking magnets, pole pieces and corner pieces. The pole pieces are secured to the ends of the bar magnets and have convex faces which are directed inwardly toward one another.

Abstract: An improved permanent magnet solenoid having a stepped transition in axial agnetic field profile and comprised of two permanent magnet solenoids, with appropriate cladding, placed in tandem and a radially magnetized ring magnet placed within the working cavity of the solenoids at the joint of entire structure.

Abstract: A deflection yoke arrangement with geometry correction includes horizontal and vertical deflection coils for scanning a raster pattern on a phosphor screen of a cathode ray tube. A support housing suitable for positioning about the neck of the cathode ray tube contains the coils and has a front rim formed with a plurality of slots near the outer periphery. A plurality of brackets formed from magnetically permeable material are located in corresponding ones of the slots. Each bracket comprises two flat end sections joined to opposite sides of a flat central part at substantially right angles thereto. One of the flat end sections of each bracket collects magnetic flux generated by the coils and channels the flux via the central part to the other end section. The plurality of brackets shape the deflection magnetic field in the region about the front rim to provide the geometry correction.

Abstract: A muon detector system including central and end air-core superconducting toroids and muon detectors enclosing a central calorimeter/detector. Muon detectors are positioned outside of toroids and all muon trajectory measurements are made in a nonmagnetic environment. Internal support for each magnet structure is provided by sheets, located at frequent and regularly spaced azimuthal planes, which interconnect the structural walls of the toroidal magnets. In a preferred embodiment, the shape of the toroidal magnet volume is adjusted to provide constant resolution over a wide range of rapidity.

Abstract: The constitutional body of the deflection yoke of the present invention comprises a vertical deflection coil which are constituted with two sets of coils two pairs of one for generating a pincushion magnetic field and one for generating a barrel magnetic field, and by connecting, to one set thereof, one set of diodes connected with each other, with the respective polarities of the diodes being opposite to each other, in parallel, the occurrence of inverse trilemma is substantially prevented.

Abstract: A deflection yoke for a cathode ray tube, including a first yoke portion and a second yoke portion engaged with opposite sides of the cathode ray tube neck. Each yoke portion includes a main winding for producing substantial first and associated higher harmonic magnetic fields in the neck and a correction winding for producing substantial third and higher harmonic fields. The correction winding is formed by running normally screen end transverse main winding turns longitudinally with the neck toward the cathode ray tube gun end in one yoke portion quadrant and returning them to the screen end transverse main winding in the other yoke portion quadrant.

Abstract: A deflection yoke for a single beam deflection comprises a pair of horizontal deflection coils, a pair of vertical deflection coils, a correction magnet, two sets of coil pairs connected in series with the horizontal deflection coils, a bias magnet and an auxiliary coil magnetically coupled to the coil pairs and supplied a vertical deflection current. A deflection device comprises the deflection yoke, a horizontal deflection circuit and a vertical deflection circuit. A monochrome CRT display comprises the deflection device, an video processing device and a monochrome CRT.

Abstract: In a color cathode ray tube apparatus of this invention, if an outer diameter of a neck having a cylindrical shape is represented by D.sub.N and an interval of adjacent electron beams at a screen-side end portion of an electron gun is represented by Sg, a value D.sub.N /Sg is 8.0 or more. A deflection means has a saddle-type horizontal deflection coil for deflecting electron beams in an in-line direction. If the length of the deflection means in a direction of the tube axis is represented by l.sub.H all, l.sub.H all is 90 mm or more.

Abstract: A permanent magnet structure comprising a longitudinally extending flux sce fabricated of magnetically rigid material. The flux source comprises a central cavity with a magnetic field being produced therein. Magnetic dipoles having predetermined magnitude and orientation for compensating nonuniformities in the magnetic field are symmetrically located within the plane of the flux source.

Abstract: The lens is formed by the association of two electromagnetic lenses sharing one and the same magnetic circuit crossed by one and the same central channel. The first lens is a shielded lens and has an annular gap at one of its ends. This annular gap cuts the central channel along a direction the plane of which is perpendicular to the optical axis. The second lens is a single-pole lens surrounding the annular gap of the first lens. It has an annular gap demarcated by two lips, the walls of which have shapes generated by revolution around the optical axis. Induction coils enable the magnetic flux of the gaps to be made to vary.

Abstract: A magnetic structure fabricated of magnetically rigid materials combines a adial magnetic field source with an axial magnetic field source to produce a conical field source. The radial magnetic field source typically comprises a substantially annular enclosed cavity with an internal magnetic field oriented perpendicular to the annular axis of the cavity. The axial magnetic field source most likely comprises a substantially cylindrical enclosed cavity with an internal magnetic field oriented parallel to the cylindrical axis of the cavity.

Abstract: In a proposed color cathode-ray tube with deflection yoke, adjustment of static convergence and purity is performed by controlling the polarities and magnetization forces of a plurality of pole pieces made of metal alloy circumferentially held around the outer periphery. Tap bolts pressing the external wall of a funnel nearly in the perpendicular direction are so disposed on a deflection yoke mounting member as to be adjacent to the funnel of the color cathode-ray tube. The tap bolts press the funnel to fix the deflection yoke.

Abstract: A clamp comprising a semicircular journal part and an inside diameter changing part disposed to face each other inside a ring-typed band and a fastening bolt that passes through the band perimeter and contacts to the inside diameter changing part by a pad placed at its end.The fastening force by the fastening bolt in this clamp acts across the neck axis so that it causes no slip movement of the deflection yoke when clamped.

Abstract: A coil-carrier half (11) for a saddle-coil arrangement for a cathode ray tube accomodates a saddle-coil winding, in a front groove (13), a rear groove (14), left slots (18.11-18.51) and right slots. Prolongation of the left slots in comparison with the right slots results from the presence. in a rear wall (15.h) of a front-groove, at the positions where the left slots open out into the groove, of steps which are greater towards the front than at the fan-out positions of the right slots.In an asymmetrically built coil-carrier half of this sort, turns (12)' are introduced in each slot so that they run towards the prolongation position of the slot. This produces a saddle-coil arrangement which leads to fewer image defects than when a conventional saddle-coil arrangement with symmetrical coil-carrier halves is used.

Abstract: A hybrid undulator made from axial arrays of rare-earth permanent magnets and highly permeable pole pieces. The pole pieces and magnets are wedge-shaped, with the same wedge angle, and fit together with the wedge angle of the magnets directed away from the axis and the wedge angle of the pole pieces directed toward the axis. The pole pieces can extend closer to the axis than the magnets. The wedged-pole undulator produces increased on-axis magnetic fields, and the wedge angle can be chosen to prevent magnetic field saturation inside the pole pieces.

Abstract: A cathode-ray tube-yoke combination comprises a cathode-ray tube having a glass envelope and a yoke fixedly positioned on the envelope with a body of cured polymeric material. The novel composition of the polymeric material comprises a UV-curable adhesive and UV-transmissive particles of a suitable material in an amount sufficient to accelerate the curing of the adhesive. A method to accelerate the curing is also described.

Abstract: A deflection yoke is constructed of a truncated conical hollow core, a pair of saddle-shaped horizontal deflection coils disposed inside the core, and a pair of toroidal vertical deflection coils wound on the core or a pair of vertical deflection coils wound in a saddle-like configuration and arranged in the vicinity of the core. A pair of cancellation coils opposing each other on an imaginary axis which passes through a central axis of the core in the direction of vertical deflection are arranged near front end sections of the vertical deflection coils, respectively. A central axis of each of said cancellation coils is inclined at a predetermined angle relative to the central axis of the core. The cancellation coils are connected with the horizontal deflection coils, respectively.

Abstract: The invention disclosed herein is a permanent magnet structure which is uul in focusing or guiding charged particle beams, such as those employed in traveling wave tubes, wigglers and undulators. The magnets are annular or planar in shape and have a cross-sectional configuration which is triangular in shape. The cross section forming the triangular magnet sections is that plane which contains the linear beam path and intersects the magnets. The magnetizations of the magnets are oriented perpendicular to the magnetizations of adjacent magnets such that no magnetic poles exist on the outer surface of the permanent magnetic structure.

Abstract: A deflection yoke assembly for use on a cathode ray tube including an evacuated envelope, a coil separator mounted exteriorly on the evacuated envelope at a location corresponding to the boundary betweeen the funnel section and the neck section and having a generally conical portion, a radially outwardly flanged front end portion at one end of the conical portion and a radially outwardly flanged rear end portion at the opposite end of the conical portion, a pair of horizontal deflection coils and a pair of vertical deflection coils both wound on the coil separator. The deflection yoke assembly comprises a vertical deflection distortion correcting unit including two electromagnetic coil devices mounted on at least said radially outwardly flanged front end portion of the coil separator in alignment with a vertical axis of the evacuated envelope while spaced 180.degree. circumferentially about the longitudinal axis of the envelope.

Abstract: A thermally stable magnetic deflection assembly for use in an electron or particle beam machine with several separately potted magnetic coils spaced apart and arranged in a particular vertical position on a central pipe. Non metallic, low coefficient of thermal expansion, highly thermally conductive materials are used throughout and means are provided for maintaining the entire assembly at a desired temperature. Also disclosed is a method of making a thermally stable magnetic deflection assembly.

Abstract: A permanent magnet structure comprising a linear array of hollow cylindrical flux source structures nested one within another about a common central axis. Each HCFS structure is free to displace linearly parallel to the central axis or to rotate about the axis. The array may be arranged by appropriate mechanical adjustment to provide periodic magnetic structures suitable for use as a wiggler or a twister.

Abstract: A conventionally arranged multilayered eddy current type intense AC magnetic field generator is remarkably improved only by intercrossing frame-shaped iron cores with alternately multilayered structure of exciting coils and conductor plates for inducing eddy currents, so as increase the impedance of the exciting coils as well as to increase the mutual inductance thereof with the conductor plates. As a result, the desired intense AC magnetic field can be efficiently and continuously generated with evidently reduced electric power.

Abstract: Micropole undulators for use in the generation of x-rays from moving charged particles are disclosed. Two rows of spaced apart poles are arranged so that each pole produces a magnetic field aligned with all other similar fields. The poles are the ends of "C"-shaped magnets. In each row, adjacent poles are separated by spacers made of a superconducting material.

Abstract: A permanent magnet for an electric lens including at least two ring-shaped permanent magnets, wherein a yoke comprised of a ferromagnetic body having the same inner and outer diameters of adjacent ring-shaped permanent magnets to be inserted into a portion between said both ring-shaped permanent magnets, and said yoke is comprised of a sintered alloy and is provided with one groove or more for taking out a lead wire of a coil assembled in said yoke and said ring-shaped permanent magnets.

Abstract: An analyzer tube for mass spectrometry comprises a body tube having a central axis, a part of which extends along an arc, and a pair of magnetic poles, each provided on the respective window formed in a side wall of the body tube. One end portion of the magnetic pole projects into an interior of the body tube. The projecting end portion is so tapered that a cross sectional shape along any direction perpendicular to the central axis presents an inverted trapezoid. Ridges extending parallel to the central axis are provided in opposite sides of the projecting end portion of the magnetic pole. A pair of baffle plates are disposed adjacent to opposite inner side wall surfaces. The baffle plate has an angled cross sectional shape and is so disposed in the analyzer tube that ridge of the baffle plate projects inwardly and extends parallel to the central axis.

Abstract: A magnetic field generating device provides a useful magnetic field within a specific retgion, while keeping nearby surrounding regions virtually field free. By placing an appropriate current density along a flux line of the source, the stray field effects of the generator may be contained. One current carrying structure may support a truncated cosine distribution, and it may be surrounded by a current structure which follows a flux line that would occur in a full coaxial double cosine distribution. Strong magnetic fields may be generated and contained using superconducting cables to approximate required current surfaces.

Abstract: A method of longitudinally severing a longitudinally symmetrical annular core of ferromagnetic material into two parts. By means of a laser, two lines of recesses are inscribed in the surface of the annular core substantially in the longitudinal direction. The recesses are shaped so that the resulting weakening of the annular core along the lines of recesses causes it to spontaneously fracture into two parts along such lines.

Abstract: In a deflection yoke for a color cathode-ray tube having an electron gun assembly for generating a plurality of electron beams which are directed longitudinally to converge substantially at the center of a screen, and in which a deflection magnetic field is provided through which the beams pass between the gun assembly and the screen so as to be deflected from the center of the screen for scanning the latter; horizontal center raster (HCR) misconvergence of the beams is avoided by providing a closed circuit in which an induced current is generated in response to a leakage magnetic field from the horizontal deflection magnetic field, and such induced current in the closed circuit generates a compensating magnetic field by which the distribution of the horizontal deflection magnetic field, in the longitudinal direction of the beams passing therethrough, is suitably altered.

Abstract: A static conversion device for a color television picture tube having a base unit, a central unit and a cap unit mounted in a stack about the neck of the picture tube. Each of the units centers a pair of magnetic rings, and the rings are mounted between outwardly extending tabs of adjacent units. The assembly is maintained in position on the neck of the picture tube by a plurality of pairs of fingers extending from the units to abut the neck of the picture tube.

Abstract: The invention relates to a method of dividing a ring core (42) of sintered oxidic ferromagnetic material in two semi-annular parts, in which dividing seams 40, 41 are formed in the ring core 42 by means of two spot-shaped heat sources 43 and 44. The spot-shaped heat sources 43 and 44 are moved across the ring core 42 along the lines 40, 41 at a velocity v. An accurate and controlled division of the ring core 42 is obtained independent of the ratio between the heat supplied and the rate of movement v.

Abstract: A deflector for a cathode ray tube (called herein "CRT"), and more particularly a stator type deflector in which a plurality of slots for windings are formed in the inner surface of a tubular core and deflecting coils are positioned in these slots. Both convergence (spot) distortion and raster (pin cushion) distortion are small. The magnetic field distribution at the neck is a barrel type, and that at the screen is a pin cushion type. Both the horizontal and the vertical magnetic fields are obtained by adjusting the positioning of the winding slots formed in the inner surface of the tubular core for positioning the deflecting coils. This is accomplished by adjusting the angles of the plurality of winding slots formed in the inner surface of the tubular core which contain the deflecting coils.

Abstract: A magnetic deflection system for charged particles, the which includes a coil arrangement for generating a magnetic guide field perpendicular to the plane of the desired orbit so as to guide the particles in the plane S.sub.E of the desired orbit on a deflection path on a deflection radius r.sub.0. The system has two coils which are arranged on top of one another on either side of an area A.sub.0 defined by the direction of the magnetic guide field and the deflection radius r.sub.0 so that the winding faces of the coils extend parallel to area A.sub.0, with two of the coils being disposed above the plane S.sub.E of the desired orbit and two below the plane S.sub.E of the desired orbit.In a preferred embodiment, the coils are composed of at least one double pancake.

Abstract: A monotube CRT includes an envelope which comprises a first section that houses the electron gun and a second section that houses a fiber optics faceplate along a sidewall. An array of electromagnets is disposed along the second section for deflecting the electron beam from its longitudinal path through the envelope transversely to trace a linear scan on the faceplate. The first section of the envelope is a circular cylinder whose axis is coaxial with the longitudinal path of the electron flow. The second section of the envelope is essentially rectangular or elliptical in cross section and the undeflected beam flows adjacent one narrow sidewall opposite the sidewall housing the faceplate. Each electromagnet of the array includes a core portion adjacent said one narrow sidewall and pole pieces that flank the wide sidewalls of the section.

Abstract: A method is disclosed for the setting of the static convergence and/or purity of a color television tube using permanent magnets. Magnetizable elements are fixed around the color television tube. These elements are evenly distributed around the axis of the tube. To correct the static convergence and/or purity errors, each element is magnetized by means of a corresponding coil, the position and dimensions of which are such that the element is subjected solely to the field within the turns of the coil.

Abstract: An electromagnetic deflection unit for use in a projection television display tube, includes: a system of line deflection coils having two oppositely located saddle coils each with their longitudinal conductor groups which are to be positioned on either side of the longitudinal axis of the display tube. At the screen-sided end the conductor groups of the oppositely located saddle coils are located at a first distance, on one side of the tube axis and on the other side they are located at a second, smaller distance from each other, whereas at the gun-sided end the situation is just the reverse. The distances at the screen-sided end are adjusted to generate a 4-pole component upon energization of the line deflection coil system, which component renders the raster to be written on the display screen trapezoidal. The distances at the gun-sided end are adjusted to generate a 4-pole component which is opposite to the 4-pole component generated in the proximity of the screen-sided end.

Abstract: In a color cathode ray tube, electron beams generated from an electron gun assembly of an in-line type are deflected by horizontal and vertical deflection magnetic fields. The horizontal deflection magnetic field includes a main magnetic field and an auxiliary magnetic field. The main magnetic field has a barrel-shaped distribution and is substantially symmetrically formed about a Y-Z plane and the auxiliary magnetic field is substantially antisymmetric about the Y-Z plane.

Abstract: A periodic permanent magnet stack comprises a plurality of aligned, juxtaed, hollow hemispherical flux sources each of which produces a uniform high-field in its hemispherical central cavity. The magnetic field orientations in the central cavities are axially directed and alternate or reverse in direction from hemisphere to hemisphere. An axial bore hole through the stack provides a continuous channel or path through which a beam of charged particles will travel.

Abstract: A deflection apparatus for cathode ray tube is provided, which comprises deflection yoke with guide grooves, deflection windings for scanning in one direction in said grooves, deflection windings for scanning in the other direction and an insulator between both types of windings. It attains high accuracy deflection with less distortion without any induced heating problem due to protuberances made relatively between grooves.

Abstract: In the preferred embodiment a plurality of toroidally shaped magnets of slar size and configuraton are placed in a stack side-by-side in coaxial alignment. Alternate magnets in the stack are magnetized so that the magnetic dipole moment of each is oriented in the radial direction. An axial magnetized toroidal magnet is disposed between each pair of adjacent radially magnetized magnets. The magnetic orientation of the succesive toroidal magnets of the stack rotates continually in one direction in increments of 90.degree. or .pi./2 radians from the magnet at one end of the stack to that at the other end.

Abstract: A deflection yoke field modifying device corrects N-S pincushion distortion without increasing A-zone convergence errors. The device may be of the form of a ferrite ring which is located near the electron beam exit end of the deflection yoke. The ring may be mounted on the yoke insulator. The ring shunts flux from the vertical deflection field in order to provide the desired N-S pincushion correction.

Abstract: An in-line color picture tube including a deflection unit having a system of deflection coils accommodating two sets of soft magnetic correction elements. The first set is provided in the proximity of the center of the vertical deflection field and symmetrically with respect to the plane through the non-deflected electron beams. The second set is also provided in the proximity of the center of the vertical deflection field, but closer to the entrance side thereof and symmetrically with respect to the plane through the tube axis which is at right angles to the plane through the non-deflected electron beams. The second set of correction elements is thereby angularly rotated 90.degree. relative to the first set of correction elements. The first set provides conventional astigmatism correction, and the second set provides astigmatism correction of higher order components of the deflection field.

Abstract: A deflecting electromagnet having bow-shaped pole pieces 7b,7a disposed at input and output side end surfaces 6b,6a, respectively, of a main pole piece 6 which deflects and focuses an ion beam 2 generated by an ion source 1. The respective bow-shaped pole pieces are rotatably contacted with the side end surfaces of the main pole piece. Wedge-shaped pole pieces 8b,8a, are disposed in freely slidable contact with the planar surfaces of each of the bow-shaped pole pieces, respectively. The deflecting electromagnet constructed as above can be used to easily establish and adjust the effective borders of the magnetic field to a desirable position to establish and adjust, as desired, and the angle of the faces of the deflecting electromagnet at which the ion beam is inputted and outputted.

Abstract: Micropole undulators for use in the generation of x-rays from moving charged particles and methods for manufacturing such undulators are disclosed.One type of micropole undulator has two jaws containing rows of spaced apart poles arranged so that each pole produces a magnetic field aligned with all other similar fields. An external biasing field extends through the jaws so that an overall undulator field of substantially sinusoidal shape and substantially zero average value extends along the undulator axis. Preferably, the poles are bars formed of a magnetizable, but unmagnetized, material so that, after the jaws are assembled, all of the bars can be magnetized simultaneously in a uniform magnetic field of suitable strength.

Abstract: A display system for a video apparatus includes a cathode ray tube and a deflection yoke adapted to be adhesively mounted to the cathode ray tube. A flexible sleeve is removably attached to the tube between the yoke and the tube and closely conforms to the tube contour. The yoke is adhesively mounted to the sleeve rather than directly to the tube in order to permit removal and replacement of the deflection yoke without causing damage to the tube.

Abstract: A cathode ray tube display device which has an arrangement for mounting a deflection unit on the conical portion of a cathode ray tube envelope. In order to permit a rapid mounting of the deflection unit in a manner which provides shock resistance, and resistance temperature fluctuations in the deflection unit and the envelope, three V-shaped, sheet metal connecting devices connect the deflection unit to the conical portion of the envelope. The free ends of the devices are attached to the deflection unit in such a manner that the vertices of the devices are substantially tangential to the surface of the conical portion. After adjustment of the deflection unit the vertices of the devices are secured to the conical portion in such a manner that the connections are loaded with a shearing force.

Abstract: A cathode ray tube electromagnetic deflection unit comprising field deflection coils (8,8') and line deflection coils (10, 10'), both of the saddle type, wound directly onto an annular support (4). The field deflection coils consist of a first part (11) wound against the inner side of the support (4) and a second part (12) wound against the line deflection coils (10, 10'). At the narrow end (5) of the support (4) the second part (12) extends in the longitudinal direction further than the line deflection coils (10,10'), and the first and second parts (11, 12) are electrically connected in series. Such a deflection unit has high sensitivity and minimizes coma errors.

Abstract: A picture display device adapted for use in a projection color television receiver and comprising a monochrome display tube provided with a line deflection coil and a field deflection coil arranged contiguously in the direction of the tube axis, the line deflection coil being closer to the display screen of the picture tube. A convergence correction coil system is provided including a first convergence correction coil arranged coaxially with respect to the line deflection coil, one of such coils extending within the other, the first convergence correction coil generating a magnetic field at right angles to that produced by the line deflection coil. A second convergence correction coil is arranged coaxially with respect to the field deflection coil, one of such coils extending within the other, the second convergence correction coil generating a magnetic field at right angles to that produced by the field deflection coil.

Abstract: This invention relates to improvements of a deflecting yoke for deflecting an electron beam electromagnetically when a high energy electron beam is used in a cathode ray tube.The deflecting yoke is constructed by adding additional coils to a conventional deflecting yoke having an annular core in substantially cylindrical shape, opposite vertical coils which are wound directly around the annular core, and a pair of horizontal coils which are disposed substantially horizontally along the inner circumferential surface of the annular core.

Abstract: A device is disclosed which uses permanent magnets to manipulate charged ticle beams, such as those employed in traveling wave tubes, wigglers, and undulators. Tapered pole pieces are inserted between magnets in a periodic permanent magnet array, and the taper is oriented away from the beam path. The magnets themselves may also be tapered, but the taper is oriented toward the beam path. Tapering is described according to the cross sections formed when the plane which contains the beam path intersects the magnets and pole pieces.