Anomalous Beam Transport through Gabor (Plasma) Lens Prototype
, Robert Bingham 2,3, Chung Lim Cheung 1, Hin-Tung Lau 1, Ken Long 3,4, Jürgen Pozimski 3,4 and Colin Whyte 2Round 1
Reviewer 1 Report
This article deals with plasma lenses, in particular a Gabor plasma lens. The article looks in detail at an electron lens built at Imperial College London and the test performed by the authors with 1.4 MeV protons.
The article is extremely well and carefully written. Everything that one could wish to read about, linked to this experiment is reported on. It is a pleasure to read.
My only comment was that there are perhaps not enough details about how these plasma lenses are modelled and it would be nice to have some. I leave it to the authors whether they wish to do this. Personally, I think a paragraph or so would add to the article but I will not make my acceptance dependent on this.
I recommend this article for publication.
Author Response
The authors would like to thank the reviewer for the insightful, constructive comments. The point raised by the reviewer has been addressed accordingly in the revised manuscript.Reviewer 2 Report
The manuscript contains new interesting results and useful brief review of problems related to Gabor lenses. In particular, the fact of conversion of the pencil beams into rings is interesting and can probably be used for some applications. Before publication of the manuscript, minor editing of one sentence is desirable and that of another sentence is necessary:
- It is desirable to insert the words "to many of the targets" or similar ones after the word "beams" in the first sentence of Introduction (page 1, line 16).
- The sentence on page 2, lines 30-32 should be edited, because it is not correct. For some of the discussed scenarios of the use of laser-driven ion beams, for example, for fast ignition by ions of elements with sufficienlty high atomic numbers with the use of cones, even the high divergence of the beams is acceptable (see, e.g., M.L. Shmatov, Fusion Sci. Techol. Vol. 43, 456 (2003)). Besides, in some situations the divergence of laser-driven ion beams can be reduced when using shaped targets (see, e.g., M. Roth et al., Phys. Rev. Lett. Vol. 86, 436 (2001)); other methods, for example, the use of the ring-focused laser beams, may also be effective (see, e.g., M.L. Shmatov, Fusion Sci. Techol. Vol. 43, 456 (2003)).
Author Response
The authors would like to thank the reviewer for the insightful, constructive comments. Each point has been addressed accordingly in the revised manuscript.