| Title |
Enhancing laser-driven proton acceleration by using micro-pillar arrays at high drive energy
|
|---|---|
| Published in |
Scientific Reports, September 2017
|
| DOI | 10.1038/s41598-017-11589-z |
| Pubmed ID | |
| Authors |
Dimitri Khaghani, Mathieu Lobet, Björn Borm, Loïc Burr, Felix Gärtner, Laurent Gremillet, Liana Movsesyan, Olga Rosmej, Maria Eugenia Toimil-Molares, Florian Wagner, Paul Neumayer |
| Abstract |
The interaction of micro- and nano-structured target surfaces with high-power laser pulses is being widely investigated for its unprecedented absorption efficiency. We have developed vertically aligned metallic micro-pillar arrays for laser-driven proton acceleration experiments. We demonstrate that such targets help strengthen interaction mechanisms when irradiated with high-energy-class laser pulses of intensities ~10(17-18) W/cm(2). In comparison with standard planar targets, we witness strongly enhanced hot-electron production and proton acceleration both in terms of maximum energies and particle numbers. Supporting our experimental results, two-dimensional particle-in-cell simulations show an increase in laser energy conversion into hot electrons, leading to stronger acceleration fields. This opens a window of opportunity for further improvements of laser-driven ion acceleration systems. |
X Demographics
The data shown below were collected from the profiles of 6 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 1 | 17% |
| United Kingdom | 1 | 17% |
| Australia | 1 | 17% |
| Unknown | 3 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 50% |
| Scientists | 2 | 33% |
| Science communicators (journalists, bloggers, editors) | 1 | 17% |
Mendeley readers
The data shown below were compiled from readership statistics for 63 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 63 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 30% |
| Researcher | 13 | 21% |
| Student > Doctoral Student | 5 | 8% |
| Student > Master | 5 | 8% |
| Professor > Associate Professor | 3 | 5% |
| Other | 4 | 6% |
| Unknown | 14 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 41 | 65% |
| Materials Science | 2 | 3% |
| Business, Management and Accounting | 1 | 2% |
| Social Sciences | 1 | 2% |
| Agricultural and Biological Sciences | 1 | 2% |
| Other | 2 | 3% |
| Unknown | 15 | 24% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 September 2017.
All research outputs
#7,622,789
of 23,881,329 outputs
Outputs from Scientific Reports
#51,667
of 128,931 outputs
Outputs of similar age
#117,366
of 317,845 outputs
Outputs of similar age from Scientific Reports
#2,119
of 5,543 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. This one has received more attention than most of these and is in the 67th percentile.
So far Altmetric has tracked 128,931 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.5. This one has gotten more attention than average, scoring higher than 58% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 317,845 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 62% of its contemporaries.
We're also able to compare this research output to 5,543 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 60% of its contemporaries.