Abstract
Using a simple field evaporation model and molecular dynamics simulations of nanoscale copper tip evolution in a high electric field gradient typical for linacs, we have studied a new mechanism for rf-field evaporation. The mechanism consists of simultaneous (collective) field evaporation of a large group of tip atoms in high-gradient fields. Thus, evaporation of large clusters is energetically more favorable when compared with the conventional, "one-by-one" mechanism. The studied mechanism could also be considered a new mechanism for the triggering of rf-vacuum breakdown. This paper discusses the mechanism and the experimental data available for electric field evaporation of field-emission microscopy tips.
| Original language | English |
|---|---|
| Pages (from-to) | 41-45 |
| Number of pages | 5 |
| Journal | Physical Review Special Topics - Accelerators and Beams |
| Volume | 7 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Nuclear and High Energy Physics
Cite this
New mechanism of cluster-field evaporation in rf breakdown. / Insepov, Z.; Norem, J. H.; Hassanein, A.
In: Physical Review Special Topics - Accelerators and Beams, Vol. 7, No. 12, 2004, p. 41-45.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - New mechanism of cluster-field evaporation in rf breakdown
AU - Insepov, Z.
AU - Norem, J. H.
AU - Hassanein, A.
PY - 2004
Y1 - 2004
N2 - Using a simple field evaporation model and molecular dynamics simulations of nanoscale copper tip evolution in a high electric field gradient typical for linacs, we have studied a new mechanism for rf-field evaporation. The mechanism consists of simultaneous (collective) field evaporation of a large group of tip atoms in high-gradient fields. Thus, evaporation of large clusters is energetically more favorable when compared with the conventional, "one-by-one" mechanism. The studied mechanism could also be considered a new mechanism for the triggering of rf-vacuum breakdown. This paper discusses the mechanism and the experimental data available for electric field evaporation of field-emission microscopy tips.
AB - Using a simple field evaporation model and molecular dynamics simulations of nanoscale copper tip evolution in a high electric field gradient typical for linacs, we have studied a new mechanism for rf-field evaporation. The mechanism consists of simultaneous (collective) field evaporation of a large group of tip atoms in high-gradient fields. Thus, evaporation of large clusters is energetically more favorable when compared with the conventional, "one-by-one" mechanism. The studied mechanism could also be considered a new mechanism for the triggering of rf-vacuum breakdown. This paper discusses the mechanism and the experimental data available for electric field evaporation of field-emission microscopy tips.
UR - http://www.scopus.com/inward/record.url?scp=18144411271&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18144411271&partnerID=8YFLogxK
U2 - 10.1103/PhysRevSTAB.7.122001
DO - 10.1103/PhysRevSTAB.7.122001
M3 - Article
VL - 7
SP - 41
EP - 45
JO - Physical Review Special Topics - Accelerators and Beams
JF - Physical Review Special Topics - Accelerators and Beams
SN - 1098-4402
IS - 12
ER -