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Note: He puff system for dust detector upgrade
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10.1063/1.3545841
/content/aip/journal/rsi/82/3/10.1063/1.3545841
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/3/10.1063/1.3545841
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Setup used for He puffs in vacuum. The upper flange is raised to show the dust delivery tray.

Image of FIG. 2.
FIG. 2.

Percentage of additional counts triggered by consecutive puffs labeled 1P, 2P, 3P, … and knocks labeled 1K, 2K, 3K, … in vacuum conditions without cover mesh and with the three-nozzle manifold. For three trials the percentage of additional counts triggered by a knock event after a second puff was lower than 0.5%.

Image of FIG. 3.
FIG. 3.

Puff system setup with the 5 cm × 5 cm dust detector and cover mesh as used previously in NSTX(Refs. 4 and 5). The detector is shown schematically by the thick lines under the cover mesh. For clarity the mesh porosity is not to scale. Three of the nozzles are aimed on the surface of the detector and the fourth nozzle is aimed at the surface of the mesh.

Image of FIG. 4.
FIG. 4.

Percentage of additional counts triggered by consecutive puffs labeled 1P, 2P, 3P, … and knocks labeled 1K, 2K, 3K, … in vacuum conditions with the cover mesh and four-nozzle manifold. After two puffs an insignificant number of additional counts were triggered by a knock event indicating that the entire surface of the detector was cleared.

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/content/aip/journal/rsi/82/3/10.1063/1.3545841
2011-03-10
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Note: He puff system for dust detector upgrade
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/3/10.1063/1.3545841
10.1063/1.3545841
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