Ion guide
An ion guide 10 is disclosed comprising: an inlet 11 having a first longitudinal axis 12; and an outlet 13 having a second longitudinal axis 14, the first axis being substantially co-axial with the second axis; wherein the inlet, outlet and a middle section 16 therebetween together define an ion pat...
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creator | Richard Tyldesley-Worster Dennis Ong Alastair Murray Booth Alvin Chua Carl Gang Chen |
description | An ion guide 10 is disclosed comprising: an inlet 11 having a first longitudinal axis 12; and an outlet 13 having a second longitudinal axis 14, the first axis being substantially co-axial with the second axis; wherein the inlet, outlet and a middle section 16 therebetween together define an ion path, said path being non-linear in at least part of the middle section. The non-linear part may be V-shaped and offset from the first/second longitudinal axes by a distance at least equal to the diameter of the ion path, e.g. 4mm. The non-linear section preferably occludes a line-of-sight through the device, thereby preventing light generated by, for example, a filament in an upstream ionisation source from reaching an optical detector, such as a photomultiplier tube, located downstream thereof. A shroud (60, Fig. 4) comprising a housing (61) sized to receive an optical detector (5) is also disclosed, the housing including an aperture (66) to allow ions to be detected therethrough. |
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The non-linear part may be V-shaped and offset from the first/second longitudinal axes by a distance at least equal to the diameter of the ion path, e.g. 4mm. The non-linear section preferably occludes a line-of-sight through the device, thereby preventing light generated by, for example, a filament in an upstream ionisation source from reaching an optical detector, such as a photomultiplier tube, located downstream thereof. A shroud (60, Fig. 4) comprising a housing (61) sized to receive an optical detector (5) is also disclosed, the housing including an aperture (66) to allow ions to be detected therethrough.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ; ELECTRICITY</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200304&DB=EPODOC&CC=GB&NR=2576813A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200304&DB=EPODOC&CC=GB&NR=2576813A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Richard Tyldesley-Worster</creatorcontrib><creatorcontrib>Dennis Ong</creatorcontrib><creatorcontrib>Alastair Murray Booth</creatorcontrib><creatorcontrib>Alvin Chua</creatorcontrib><creatorcontrib>Carl Gang Chen</creatorcontrib><title>Ion guide</title><description>An ion guide 10 is disclosed comprising: an inlet 11 having a first longitudinal axis 12; and an outlet 13 having a second longitudinal axis 14, the first axis being substantially co-axial with the second axis; wherein the inlet, outlet and a middle section 16 therebetween together define an ion path, said path being non-linear in at least part of the middle section. The non-linear part may be V-shaped and offset from the first/second longitudinal axes by a distance at least equal to the diameter of the ion path, e.g. 4mm. The non-linear section preferably occludes a line-of-sight through the device, thereby preventing light generated by, for example, a filament in an upstream ionisation source from reaching an optical detector, such as a photomultiplier tube, located downstream thereof. A shroud (60, Fig. 4) comprising a housing (61) sized to receive an optical detector (5) is also disclosed, the housing including an aperture (66) to allow ions to be detected therethrough.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOD0zM9TSC_NTEnlYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXx7k5GpuZmFobGjsaEVQAAFOUbcA</recordid><startdate>20200304</startdate><enddate>20200304</enddate><creator>Richard Tyldesley-Worster</creator><creator>Dennis Ong</creator><creator>Alastair Murray Booth</creator><creator>Alvin Chua</creator><creator>Carl Gang Chen</creator><scope>EVB</scope></search><sort><creationdate>20200304</creationdate><title>Ion guide</title><author>Richard Tyldesley-Worster ; Dennis Ong ; Alastair Murray Booth ; Alvin Chua ; Carl Gang Chen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2576813A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2020</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS</topic><topic>ELECTRICITY</topic><toplevel>online_resources</toplevel><creatorcontrib>Richard Tyldesley-Worster</creatorcontrib><creatorcontrib>Dennis Ong</creatorcontrib><creatorcontrib>Alastair Murray Booth</creatorcontrib><creatorcontrib>Alvin Chua</creatorcontrib><creatorcontrib>Carl Gang Chen</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Richard Tyldesley-Worster</au><au>Dennis Ong</au><au>Alastair Murray Booth</au><au>Alvin Chua</au><au>Carl Gang Chen</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ion guide</title><date>2020-03-04</date><risdate>2020</risdate><abstract>An ion guide 10 is disclosed comprising: an inlet 11 having a first longitudinal axis 12; and an outlet 13 having a second longitudinal axis 14, the first axis being substantially co-axial with the second axis; wherein the inlet, outlet and a middle section 16 therebetween together define an ion path, said path being non-linear in at least part of the middle section. The non-linear part may be V-shaped and offset from the first/second longitudinal axes by a distance at least equal to the diameter of the ion path, e.g. 4mm. The non-linear section preferably occludes a line-of-sight through the device, thereby preventing light generated by, for example, a filament in an upstream ionisation source from reaching an optical detector, such as a photomultiplier tube, located downstream thereof. A shroud (60, Fig. 4) comprising a housing (61) sized to receive an optical detector (5) is also disclosed, the housing including an aperture (66) to allow ions to be detected therethrough.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY |
title | Ion guide |
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