{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,2,5]],"date-time":"2024-02-05T20:40:47Z","timestamp":1707165647716},"reference-count":33,"publisher":"AIP Publishing","issue":"3","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2001,3,1]]},"abstract":"<jats:p>A probe based laser photodetachment system has been developed to measure the H\u2212 density in a high frequency hydrogen discharge sustained by a traveling surface wave. Problems associated with application of this technique in high frequency discharges in general are pointed out. The influence of the time varying voltage across the plasma probe sheath on the probe measurement has been minimized by applying a passive method of compensation. An emissive probe, placed inside the launcher, has been used as a reference electrode in order to minimize the discharge disturbance and to reduce the additional resistance in the measuring system. A filtering technique has been incorporated in the detection system to separate the photodetachment signal from the signal at the discharge stimulating frequency. The big heating of the probe, set at electron saturation condition, has been avoided by using a convenient time sequence of the detection system operation. The photodetachment H\u2212 density measurements are confirmed by applying a high sensitivity second derivative probe technique as a second reference method. Axial variation of H\u2212 density, as measured, correlates with the axial distribution of hydrogen atoms. Experimentally obtained radial H\u2212 density profile confirms the well known fact that the negative ions are confined in the existing radial potential well.<\/jats:p>","DOI":"10.1063\/1.1319861","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T14:14:52Z","timestamp":1027692892000},"page":"1680-1687","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":7,"title":["A laser photodetachment technique for the measurement of H\u2212 in a high frequency traveling wave discharge"],"prefix":"10.1063","volume":"72","author":[{"given":"F. M.","family":"Dias","sequence":"first","affiliation":[{"name":"Centro de Fisica dos Plasmas, Instituto Superior T\u00e9cnico, P-1049-001\u2009Lisboa, Portugal"}]},{"given":"E.","family":"Tatarova","sequence":"additional","affiliation":[{"name":"Centro de Fisica dos Plasmas, Instituto Superior T\u00e9cnico, P-1049-001\u2009Lisboa, Portugal"}]},{"given":"H.","family":"Crespo","sequence":"additional","affiliation":[{"name":"Centro de Fisica dos Plasmas, Instituto Superior T\u00e9cnico, P-1049-001\u2009Lisboa, Portugal"}]},{"given":"C. M.","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Centro de Fisica dos Plasmas, Instituto Superior T\u00e9cnico, P-1049-001\u2009Lisboa, Portugal"}]}],"member":"317","reference":[{"key":"2024020519223984200_r1","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1088\/0963-0252\/2\/3\/009","volume":"2","year":"1993","journal-title":"Plasma Sources Sci. Technol."},{"key":"2024020519223984200_r2","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1088\/0963-0252\/5\/1\/005","volume":"5","year":"1996","journal-title":"Plasma Sources Sci. Technol."},{"key":"2024020519223984200_r3","doi-asserted-by":"crossref","first-page":"719","DOI":"10.1063\/1.1135906","volume":"50","year":"1979","journal-title":"Rev. Sci. Instrum."},{"key":"2024020519223984200_r4","first-page":"75","volume":"7","year":"1999","journal-title":"Plasma Sources Sci. Technol."},{"key":"2024020519223984200_r5","doi-asserted-by":"crossref","first-page":"2944","DOI":"10.1063\/1.367083","volume":"83","year":"1998","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r6","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1063\/1.345210","volume":"67","year":"1990","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r7","doi-asserted-by":"crossref","first-page":"2597","DOI":"10.1063\/1.101990","volume":"55","year":"1989","journal-title":"Appl. Phys. Lett."},{"key":"2024020519223984200_r8","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1088\/0022-3727\/24\/3\/006","volume":"24","year":"1991","journal-title":"J. Phys. D"},{"key":"2024020519223984200_r9","first-page":"145","volume":"39","year":"1997","journal-title":"Plasma Phys. Controlled Fusion"},{"key":"2024020519223984200_r10","doi-asserted-by":"crossref","first-page":"2221","DOI":"10.1063\/1.1147040","volume":"67","year":"1996","journal-title":"Rev. Sci. Instrum."},{"key":"2024020519223984200_r11","doi-asserted-by":"crossref","first-page":"2009","DOI":"10.1063\/1.349486","volume":"70","year":"1991","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r12","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1109\/TPS.1986.4316511","volume":"14","year":"1986","journal-title":"IEEE Trans. Plasma Sci."},{"key":"2024020519223984200_r13","doi-asserted-by":"crossref","first-page":"1712","DOI":"10.1143\/JJAP.29.L1712","volume":"29","year":"1990","journal-title":"Jpn. J. Appl. Phys., Part 1"},{"key":"2024020519223984200_r14","doi-asserted-by":"crossref","first-page":"1247","DOI":"10.1063\/1.329746","volume":"52","year":"1981","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r15","doi-asserted-by":"crossref","first-page":"2873","DOI":"10.1063\/1.1140620","volume":"60","year":"1989","journal-title":"Rev. Sci. Instrum."},{"key":"2024020519223984200_r16","doi-asserted-by":"crossref","first-page":"970","DOI":"10.1063\/1.1144152","volume":"64","year":"1993","journal-title":"Rev. Sci. Instrum."},{"key":"2024020519223984200_r17","doi-asserted-by":"crossref","first-page":"1006","DOI":"10.1088\/0022-3727\/29\/4\/010","volume":"29","year":"1996","journal-title":"J. Phys. D"},{"key":"2024020519223984200_r18"},{"key":"2024020519223984200_r19","doi-asserted-by":"crossref","first-page":"999","DOI":"10.1088\/0022-3727\/23\/8\/001","volume":"23","year":"1990","journal-title":"J. Phys. D"},{"key":"2024020519223984200_r20","doi-asserted-by":"crossref","first-page":"1170","DOI":"10.1143\/JJAP.26.1170","volume":"26","year":"1987","journal-title":"Jpn. J. Appl. Phys., Part 1"},{"key":"2024020519223984200_r21","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1063\/1.369480","volume":"85","year":"1999","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r22","doi-asserted-by":"crossref","first-page":"2528","DOI":"10.1063\/1.369570","volume":"85","year":"1999","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r23","doi-asserted-by":"crossref","first-page":"1025","DOI":"10.1088\/0022-3727\/24\/7\/001","volume":"24","year":"1991","journal-title":"J. Phys. D"},{"key":"2024020519223984200_r24","first-page":"2951","volume":"9","year":"2000","journal-title":"Plasma Sources Sci. Technol."},{"key":"2024020519223984200_r25"},{"key":"2024020519223984200_r26","doi-asserted-by":"crossref","first-page":"545","DOI":"10.1088\/0963-0252\/3\/4\/012","volume":"3","year":"1994","journal-title":"Plasma Sources Sci. Technol."},{"key":"2024020519223984200_r27","doi-asserted-by":"crossref","first-page":"3274","DOI":"10.1063\/1.1144473","volume":"64","year":"1993","journal-title":"Rev. Sci. Instrum."},{"key":"2024020519223984200_r28"},{"key":"2024020519223984200_r29"},{"key":"2024020519223984200_r30","doi-asserted-by":"crossref","first-page":"887","DOI":"10.1143\/JPSJ.57.887","volume":"57","year":"1988","journal-title":"J. Phys. Soc. Jpn."},{"key":"2024020519223984200_r31","doi-asserted-by":"crossref","first-page":"4602","DOI":"10.1063\/1.367243","volume":"83","year":"1998","journal-title":"J. Appl. Phys."},{"key":"2024020519223984200_r32","first-page":"257","volume":"8","year":"1998","journal-title":"J. Phys. IV"},{"key":"2024020519223984200_r33","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1088\/0963-0252\/4\/2\/012","volume":"4","year":"1995","journal-title":"Plasma Sources Sci. Technol."}],"container-title":["Review of Scientific Instruments"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/aip\/rsi\/article-pdf\/72\/3\/1680\/19140617\/1680_1_online.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/aip\/rsi\/article-pdf\/72\/3\/1680\/19140617\/1680_1_online.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,2,5]],"date-time":"2024-02-05T20:27:27Z","timestamp":1707164847000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/rsi\/article\/72\/3\/1680\/436242\/A-laser-photodetachment-technique-for-the"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,3,1]]},"references-count":33,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2001,3,1]]}},"URL":"https:\/\/doi.org\/10.1063\/1.1319861","relation":{},"ISSN":["0034-6748","1089-7623"],"issn-type":[{"value":"0034-6748","type":"print"},{"value":"1089-7623","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2001,3]]},"published":{"date-parts":[[2001,3,1]]}}}