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US 11,387,090 B2Granted
Mass spectrometry device
AssigneeJEOL Ltd.
InventorsYoshihiko Miwa, Yasunori Nishimura, Keiko Kaneda, Shintarou Yamada, Yuta Nakaoka
Life of this patent
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Abstract
A constructed unit is fixed to a base by means of a plurality of support posts while being spaced from the base. The constructed unit includes an orthogonal acceleration unit. An incidence regulator unit is fixed to the base by a pair of support posts while being spaced from the base and the constructed unit. The incidence regulator unit includes, among others, a pair of blades that define a slit, and heaters for heating the pair of blades.
Claims4
A mass spectrometry device, comprising:
- a base;
- a constructed unit including a pulse generator unit that generates ion pulses from an ion flow;
- a first support member that fixes the constructed unit with respect to the base while spacing the constructed unit from the base;
- an incidence regulator unit provided upstream of the pulse generator unit and having a slit through which the ion flow passes;
- and
- a second support member that fixes the incidence regulator unit with respect to the base while spacing the incidence regulator unit from the base and the constructed unit,
- wherein the incidence regulator unit includes:
- a main body;
- a pair of blades provided on the main body and defining the slit;
- and
- a heat source provided on the main body and serving to heat the pair of blades, and
- wherein a direction parallel to a direction of travel of the ion flow is defined as a first direction, a direction orthogonal to the first direction and parallel to the slit is defined as a second direction, and a direction orthogonal to the first direction and the second direction is defined as a third direction, the main body extends in the second direction and the third direction;
- a pair of mounts are provided projecting toward both sides in the second direction from an end portion of the main body, which end portion being located toward the base;
- the second support member is a pair of support posts provided between the base and the pair of mounts;
- and
- each of the support posts extends in the third direction.
13 more elements
The A mass spectrometry device comprising:
- a base;
- a constructed unit including a pulse generator unit that generates ion pulses from an ion flow;
- a first support member that fixes the constructed unit with respect to the base while spacing the constructed unit from the base;
- an incidence regulator unit provided upstream of the pulse generator unit and having a slit through which the ion flow passes;
- and
- a second support member that fixes the incidence regulator unit with respect to the base while spacing the incidence regulator unit from the base and the constructed unit,
- wherein on one side of the base, there are provided the constructed unit, the first support member, the incidence regulator unit, and the second support member, and further, a reflector unit that reflects ions from the pulse generator unit;
- on the other side of the base, a detector that detects ions from the reflector unit is provided;
- and
- a member that holds the detector is fixed with respect to the base.
7 more elements
Dependencies are inferred from the claim text.