Abstract
Desorption and subsequent ionization of the monolayers from the vacuum wall of an accelerator system can have a detrimental effect on the performance of the beam transport system. Ions extracted from the resultant plasma neutralize the spacecharge and dynamically perturb the net focusing forces within the beam. To study the effect, a transparent first foil, presumably with contaminants on the surface, intercepts the beam. Placing an imaging foil tens of centimeters downstream from the first foil allows observation of minor fluxuations in the envelope. Using conducting foil targets, we see no effect unless the beam radius is small enough to damage the foil. Non-conducting foils produce a strong effect.
| Original language | English (US) |
|---|---|
| Title of host publication | BEAMS 2002 - 14th International Conference on High-Power Particle Beams |
| Pages | 248-251 |
| Number of pages | 4 |
| Volume | 1 |
| State | Published - 2002 |
| Externally published | Yes |
| Event | 14th International Conference on High-Power Particle Beams, BEAMS 2002 and the 5th International Conference on Dense Z-Pinches, DZP 2002 - Albuquerque, NM, United States Duration: Jun 23 2002 → Jun 28 2002 |
Other
| Other | 14th International Conference on High-Power Particle Beams, BEAMS 2002 and the 5th International Conference on Dense Z-Pinches, DZP 2002 |
|---|---|
| Country | United States |
| City | Albuquerque, NM |
| Period | 6/23/02 → 6/28/02 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Search for backstreaming ion defocusing during a single pulse of a 2 kA relativistic electron beam. / Lauer, E. J.; Caporaso, George J; Chambers, F. W.; Chen, Y. J.; Falabella, S.; Guethlein, G.; McCarrick, J.; Richardson, R.; Sampayan, S.; Weir, J.
BEAMS 2002 - 14th International Conference on High-Power Particle Beams. Vol. 1 2002. p. 248-251 6219437.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Search for backstreaming ion defocusing during a single pulse of a 2 kA relativistic electron beam
AU - Lauer, E. J.
AU - Caporaso, George J
AU - Chambers, F. W.
AU - Chen, Y. J.
AU - Falabella, S.
AU - Guethlein, G.
AU - McCarrick, J.
AU - Richardson, R.
AU - Sampayan, S.
AU - Weir, J.
PY - 2002
Y1 - 2002
N2 - Desorption and subsequent ionization of the monolayers from the vacuum wall of an accelerator system can have a detrimental effect on the performance of the beam transport system. Ions extracted from the resultant plasma neutralize the spacecharge and dynamically perturb the net focusing forces within the beam. To study the effect, a transparent first foil, presumably with contaminants on the surface, intercepts the beam. Placing an imaging foil tens of centimeters downstream from the first foil allows observation of minor fluxuations in the envelope. Using conducting foil targets, we see no effect unless the beam radius is small enough to damage the foil. Non-conducting foils produce a strong effect.
AB - Desorption and subsequent ionization of the monolayers from the vacuum wall of an accelerator system can have a detrimental effect on the performance of the beam transport system. Ions extracted from the resultant plasma neutralize the spacecharge and dynamically perturb the net focusing forces within the beam. To study the effect, a transparent first foil, presumably with contaminants on the surface, intercepts the beam. Placing an imaging foil tens of centimeters downstream from the first foil allows observation of minor fluxuations in the envelope. Using conducting foil targets, we see no effect unless the beam radius is small enough to damage the foil. Non-conducting foils produce a strong effect.
UR - http://www.scopus.com/inward/record.url?scp=77950827062&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950827062&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9780735401075
VL - 1
SP - 248
EP - 251
BT - BEAMS 2002 - 14th International Conference on High-Power Particle Beams
ER -