Abstract: A quadrupole mass spectrometer includes a quadrupole mass filter including: a main rod portion including four main rod electrodes; a pre-rod portion including four pre-rod electrodes, where, at an end opposite to the main rod portion, the four pre-rod electrodes are disposed to be aligned on an inscribed circle having the same radius centered on the ion optical axis, and, at the other end facing the main rod portion, two pre-rod electrodes facing each other across the ion optical axis and the other two pre-rod electrodes are disposed to be aligned on an inscribed circle having different radii centered on the ion optical axis; a main voltage applying unit to apply, to each main rod electrodes, a voltage created by superimposing a DC voltage and an RF voltage; and a pre-voltage applying unit to apply an RF voltage having a same frequency as the RF voltage to each pre-rod electrodes.

Abstract: A mass spectrometer (1) includes: an ionization section (201) configured to generate ions from a sample; a mass separation section (231, 235) configured to separate ions generated by the ionization section according to mass-to-charge ratio; an ion detector (237) configured to detect an ion separated by the mass separation section; an ion capture section (31) configured to capture ions separated by the mass separation section; and an electron beam detection section (32) configured to detect an electron beam diffracted by ions captured within the ion capture section (31). This mass spectrometer is capable of performing, in a single measurement operation, both a mass spectrometric analysis and an electron-beam diffraction measurement for distinguishing between isomers. The electron-beam diffraction measurement can be more efficiently performed than in a conventional device of this type.

Abstract: A non-transitory computer readable recording medium having recorded therein a program, the program causes a processor to: cause a display provided on a Head Mounted Display to display a stereoscopic image to which binocular parallax is applied, the stereoscopic image being an image of a virtual space in which optional objects are disposed, and the virtual space being captured by a virtual camera; acquire orientation information on an orientation of the Head Mounted Display; when a predetermined position relationship is established between a virtual line and one optional object from among the optional objects, the virtual line having a direction according to the orientation information and intersecting with the virtual camera, identify the one option image; and when one or more optional objects are identified and a predetermined condition relating to the orientation information is satisfied, select the one or more optional objects.

Abstract: A pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer is provided. The pressure-sensitive adhesive layer includes crater portions, each crater portion being concavely formed on an adhesive surface of the pressure-sensitive adhesive layer. A surface of the crater portion has a plurality of through holes.

Abstract: A mass spectrometer includes: a multi-pole ion guide including a first electrode pair and a second electrode pair arranged symmetrically with respect to the central axis; a first transmission portion connected to the first electrode pair and transmits an RF voltage to be applied to the first electrode pair; and a second transmission portion connected to the second electrode pair and transmits an RF voltage to be applied to the second electrode pair, wherein: the first transmission portion includes a capacitor that reduces the difference between the capacitance of the first transmission portion and the capacitance of the second transmission portion.

Abstract: A mass spectrometer (1) includes: an ionization section (201) configured to generate ions from a sample; a mass separation section (231, 235) configured to separate ions generated by the ionization section according to mass-to-charge ratio; an ion detector (237) configured to detect an ion separated by the mass separation section; an ion capture section (31) configured to capture ions separated by the mass separation section; and an electron beam detection section (32) configured to detect an electron beam diffracted by ions captured within the ion capture section (31). This mass spectrometer is capable of performing, in a single measurement operation, both a mass spectrometric analysis and an electron-beam diffraction measurement for distinguishing between isomers. The electron-beam diffraction measurement can be more efficiently performed than in a conventional device of this type.

Abstract: A processor causes a display provided on a Head Mounted Display to display a stereoscopic image to which binocular parallax is applied, the stereoscopic image being an image of a virtual space captured by a virtual camera, and acquire orientation information on an orientation of the Head Mounted Display. When, in the virtual space, a predetermined positional relationship is established between a virtual object that exists in the virtual space and a virtual line that passes through the virtual camera, the virtual line having a direction according to the orientation information, the processor causes to move, based on a change in relative position between the virtual line and the virtual object, a display range of display information to be displayed in the virtual space, the display range being a part of the display information and displayed in the display region provided in the virtual space.

Abstract: A non-transitory computer readable recording medium having recorded therein a program, the program causes a processor to: cause a display provided on a Head Mounted Display to display a stereoscopic image to which binocular parallax is applied, the stereoscopic image being an image of a virtual space in which optional objects are disposed, and the virtual space being captured by a virtual camera; acquire orientation information on an orientation of the Head Mounted Display; when a predetermined position relationship is established between a virtual line and one optional object from among the optional objects, the virtual line having a direction according to the orientation information and intersecting with the virtual camera, identify the one option image; and when one or more optional objects are identified and a predetermined condition relating to the orientation information is satisfied, select the one or more optional objects.

Abstract: A non-transitory computer readable recording medium having recorded therein a program that is executed by a processor of an information processing apparatus, the program causes the processor to: cause a display provided on a Head Mounted Display to display a stereoscopic image to which binocular parallax is applied, the stereoscopic image being an image of a virtual space captured by a virtual camera; and acquire orientation information on an orientation of the Head Mounted Display.

Abstract: A control device 4 for a power generation system 1 includes a target voltage regulator part 43 configured to adjust the target voltage Vr of a generator 3. The target voltage regulator part 43 has: a voltage decrease function to reduce the target voltage Vr of the generator 3 in accordance with a decrease amount of a detection value Sm of a rotation speed S of a gas engine 2 or a frequency of the generator 3 if the detection value falls below an allowable variation value when a load is connected to the generator 3 via a circuit breaker 5; and a voltage decrease limiting function to maintain the target voltage Vr of the generator 3 at an allowable lower limit voltage determined on the basis of an output voltage V which is allowable to carry out normal operation of the load if the target voltage Vr of the generator 3 is lower than the allowable lower limit voltage.

Abstract: A mass spectrometer includes: a vacuum chamber; and an ion trap and a surface emission-type electron emissive element, the ion trap and the surface emission-type electron emissive element being disposed inside the vacuum chamber.

Abstract: A control device 4 for a power generation system 1 includes a target voltage regulator part 43 configured to adjust the target voltage Vr of a generator 3. The target voltage regulator part 43 has: a voltage decrease function to reduce the target voltage Vr of the generator 3 in accordance with a decrease amount of a detection value Sm of a rotation speed S of a gas engine 2 or a frequency of the generator 3 if the detection value falls below an allowable variation value when a load is connected to the generator 3 via a circuit breaker 5; and a voltage decrease limiting function to maintain the target voltage Vr of the generator 3 at an allowable lower limit voltage determined on the basis of an output voltage V which is allowable to carry out normal operation of the load if the target voltage Vr of the generator 3 is lower than the allowable lower limit voltage.

Abstract: In a linear ion trap (3), the shape and arrangement of four rod electrodes (3a-3d) are made to deviate from an ideal state in which only a quadrupole electric field is created, in such a manner that so that the polarity of the ratio of the strength of an octapole electric field to the strength of the quadrupole electric field is different from the polarity of the ratio of the strength of an dodecapole electric field to the strength of the quadrupole electric field, where the absolute value of each of the ratios is equal to or greater than 0.005, and the absolute value of the ratio of the strength of the octapole electric field to the strength of the dodecapole electric field is within a range from 0.5 to 1.4.

Abstract: A pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer is provided. The pressure-sensitive adhesive layer includes crater portions, each crater portion being concavely formed on an adhesive surface of the pressure-sensitive adhesive layer. A surface of the crater portion has a plurality of through holes.

Abstract: In a three-dimensional quadrupole-type ion trap, a shape and an arrangement of the ring electrode and the end cap electrodes 11 and 12 are shifted from an ideal state in which only a quadrupole electric field is formed, so that the polarities of the ratio of strength of an octupole electric field with respect to the strength of a quadrupole electric field and the ratio of strength of a dodecapole electric field with respect to the strength of the quadrupole electric field are different from each other, their absolute values are equal to or greater than 0.02, and the absolute value of the ratio of strength of the octupole electric field with respect to the strength of the dodecapole electric field is within the range of from 0.6 to 1.4.

Abstract: In a three-dimensional quadrupole-type ion trap, a shape and an arrangement of the ring electrode and the end cap electrodes 11 and 12 are shifted from an ideal state in which only a quadrupole electric field is formed, so that the polarities of the ratio of strength of an octupole electric field with respect to the strength of a quadrupole electric field and the ratio of strength of a dodecapole electric field with respect to the strength of the quadrupole electric field are different from each other, their absolute values are equal to or greater than 0.02, and the absolute value of the ratio of strength of the octupole electric field with respect to the strength of the dodecapole electric field is within the range of from 0.6 to 1.4.

Abstract: A method of operating an electrode changeover switch which switches the connection state of electrodes, the electrode changeover switch is provided in the wiring path between eight electrodes through, arranged rotation-symmetrically about ion optical axis, and voltage generation switch which generates square wave high voltage ±V. When switch is switched as shown in the drawing, two circumferentially adjacent rod electrodes are connected to form one set, a square wave voltage of opposite phase is applied to circumferentially adjacent sets, and an effectively quadrupole electric field is formed. When switch is switched, a square wave voltage of opposite phase is applied to circumferentially adjacent rod electrodes and an octupole electric field is formed. In this way, by switching the switch according to the mass range, etc., it becomes possible to rapidly switch the number of poles of a multipole electric field and to suitably transport ions.

Abstract: An electrostatic lens (3), including five cylindrical electrodes (31-35) arrayed along an ion-optical axis (C) and an aperture plate (38) located on a common focal plane of two virtual convex lenses (L1 and L2) formed under an afocal condition, is used as an ion-injecting optical system for sending ions into an orthogonal acceleration unit. The diameter of a restriction aperture (39) formed in the aperture plate (38) determines the angular spread of an exit ion beam. When voltages for making the electrostatic lens (3) function as an afocal system are set, a measurement with high mass-resolving power can be performed at a slight sacrifice of the sensitivity. When voltages for making the lens function as a non-afocal system having the highest ion-passage efficiency are set, a measurement with high sensitivity can be performed at a slight sacrifice of the resolving power.

Abstract: A method of operating an electrode changeover switch which switches the connection state of electrodes, the electrode changeover switch is provided in the wiring path between eight electrodes through, arranged rotation-symmetrically about ion optical axis, and voltage generation switch which generates square wave high voltage ±V. When switch is switched as shown in the drawing, two circumferentially adjacent rod electrodes are connected to form one set, a square wave voltage of opposite phase is applied to circumferentially adjacent sets, and an effectively quadrupole electric field is formed. When switch is switched, a square wave voltage of opposite phase is applied to circumferentially adjacent rod electrodes and an octupole electric field is formed. In this way, by switching the switch according to the mass range, etc., it becomes possible to rapidly switch the number of poles of a multipole electric field and to suitably transport ions.

Abstract: An electrode changeover switch which switches the connection state of electrodes is provided in the wiring path between eight electrodes through, arranged rotation-symmetrically about ion optical axis, and voltage generation switch which generates square wave high voltage ±V. When switch is switched as shown in the drawing, two circumferentially adjacent rod electrodes are connected to form one set, a square wave voltage of opposite phase is applied to circumferentially adjacent sets, and an effectively quadrupole electric field is formed. When switch is switched, a square wave voltage of opposite phase is applied to circumferentially adjacent rod electrodes and an octupole electric field is formed. In this way, by switching the switch according to the mass range, etc., it becomes possible to rapidly switch the number of poles of a multipole electric field and to suitably transport ions.