Document Detail

Measuring extreme vacuum pressure with ultraintense lasers.
MedLine Citation:
PMID:  23368467     Owner:  NLM     Status:  In-Data-Review    
We show that extreme vacuum pressures can be measured with current technology by detecting the photons produced by the relativistic Thomson scattering of ultraintense laser light by the electrons of the medium. We compute the amount of radiation scattered at different frequencies and angles when a Gaussian laser pulse crosses a vacuum tube and design strategies for the efficient measurement of pressure. In particular, we show that a single day experiment at a high repetition rate petawatt laser facility such as Vega, that will be operating in 2014 in Salamanca, will be sensitive, in principle, to pressures p as low as 10^{-16}  Pa, and will be able to provide highly reliable measurements for p≳10^{-14}  Pa.
Angel Paredes; David Novoa; Daniele Tommasini
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Publication Detail:
Type:  Journal Article     Date:  2012-12-20
Journal Detail:
Title:  Physical review letters     Volume:  109     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-02-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  253903     Citation Subset:  IM    
Departamento de Física Aplicada, Universidade de Vigo, As Lagoas, Ourense ES-32004, Spain.
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