Zobrazeno 1 - 10
of 26
pro vyhledávání: '"W. B. Kunkel"'
Publikováno v:
Review of Scientific Instruments. 67:1666-1669
The feasibility of laser‐induced photoemission as a driving mechanism for short plasma pulse production is currently being investigated with a pulsed excimer laser at 248 nm. Low work function materials such as LaB6 and barium are used as cathode m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28807f4529a19c5f14739ebc610eee13
https://doi.org/10.1063/1.1146913
https://doi.org/10.1063/1.1146913
Publikováno v:
Journal of Applied Physics. 69:3485-3493
The production of H− ions at a barium, magnesium, strontium, molybdenum, and lanthanum‐hexaboride converter immersed in a hydrogen plasma have been investigated for pulsed and dc discharges. The scaling of the negative‐ion output with incident
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5c1b6549537f4c16202cd1c12c894d4
https://doi.org/10.1063/1.348489
https://doi.org/10.1063/1.348489
Publikováno v:
Review of Scientific Instruments. 61:1110-1116
Several techniques for suppressing the electrons before they form part of the extracted beam have been studied in a small multicusp H− source. It is found that some schemes reduce both the electron and the H− output currents. Other approaches, su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37973e0c40b1240ecb05552f962eb0fb
https://doi.org/10.1063/1.1141432
https://doi.org/10.1063/1.1141432
Publikováno v:
Review of Scientific Instruments. 63:2744-2746
The populations of ground electronic state atomic hydrogen and ground electronic state, vibrationally–rotationally excited hydrogen molecule in a negative hydrogen ion source discharge have been measured using vacuum ultraviolet (VUV) laser absorpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc3410bca24f3f00f8cc83a628aa5ee4
https://doi.org/10.1063/1.1142842
https://doi.org/10.1063/1.1142842
Publikováno v:
Applied Physics Letters. 58:1467-1469
It has been demonstrated that the H− output current from a small multicusp source can be substantially enhanced if the hydrogen plasma is seeded with barium. Operating with a barium washer insert at the extraction aperture, it is found that the ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d101e6a912d59758ddeb98724bd2a623
https://doi.org/10.1063/1.105199
https://doi.org/10.1063/1.105199
Publikováno v:
Applied Physics Letters. 57:861-863
The production of H− ions at a barium converter immersed in a hydrogen plasma has been investigated experimentally for a pulsed discharge. It is found that the scaling of the negative ion output with incident positive ion current on the converter d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a72e12469063cf1932ef71c3df03042e
https://doi.org/10.1063/1.103389
https://doi.org/10.1063/1.103389
Publikováno v:
Review of Scientific Instruments. 61:315-317
A small multicusp ion source has been used to generate beams of nitrogen ions. To achieve a high percentage of N+ ions, the source was equipped with a magnetic filter and operated with a high N2 gas density. A nearly pure atomic nitrogen ion (N+) bea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f26d4dada2b926f0fa85c5a6e56e3612
https://doi.org/10.1063/1.1141280
https://doi.org/10.1063/1.1141280
Publikováno v:
Review of Scientific Instruments. 61:650-652
A photocathode made from polycrystalline lanthanum hexaboride (LaB6) has produced nanosecond‐length electron pulses when excited by an excimer laser at 308 nm. Peak currents in excess of 1 A have been observed, with quantum yields of 4×10−5 bein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2a2b4160f0413c82c0cfee7cf6c8a3a
https://doi.org/10.1063/1.1141893
https://doi.org/10.1063/1.1141893
Publikováno v:
AIP Conference Proceedings.
Vacuum ultraviolet laser absorption spectroscopy has been employed to measure the populations and temperatures of ground electronic state H‐atoms and vibrationally‐excited H2 molecules in a volume H− ion source. Measurements of both species hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86860dce6ae06950321e66700a164e69
https://doi.org/10.1063/1.39620
https://doi.org/10.1063/1.39620
Publikováno v:
Review of Scientific Instruments. 67:1340-1340
The feasibility of laser‐induced photoemission as a driving mechanism for short plasma pulse production is currently being investigated with a pulsed excimer laser at 248 nm. Low work function materials such as LaB6 and barium are used as cathode m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c69aa3d2933aca8db498a0ff1bddefc
https://doi.org/10.1063/1.1147244
https://doi.org/10.1063/1.1147244