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Progress in proton radiography for diagnosis of ICF-relevant plasmas
CPP, Queen's University Belfast, UK.
CPP, Queen's University Belfast, UK.
CNR, Ist Proc Chim Fis, I-56100 Pisa, Italy.
CPP, Queen's University Belfast, UK.
Vise andre og tillknytning
2010 (engelsk)Inngår i: Laser and particle beams (Print), ISSN 0263-0346, E-ISSN 1469-803X, Vol. 28, nr 2, s. 277-284Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Proton radiography using laser-driven sources has been developed as a diagnostic since the beginning of the decade, and applied successfully to a range of experimental situations. Multi-MeV protons driven from thin foils via the Target Normal Sheath Acceleration mechanism, offer, under optimal conditions, the possibility of probing laser-plasma interactions, and detecting electric and magnetic fields as well as plasma density gradients with similar to ps temporal resolution and similar to 5-10 mu m spatial resolution. In view of these advantages, the use of proton radiography as a diagnostic in experiments of relevance to Inertial Confinement Fusion is currently considered in the main fusion laboratories. This paper will discuss recent advances in the application of laser-driven radiography to experiments of relevance to Inertial Confinement Fusion. In particular we will discuss radiography of hohlraum and gasbag targets following the interaction of intense ns pulses. These experiments were carried out at the HELEN laser facility at AWE (UK), and proved the suitability of this diagnostic for studying, with unprecedented detail, laser-plasma interaction mechanisms of high relevance to Inertial Confinement Fusion. Non-linear solitary structures of relevance to space physics, namely phase space electron holes, have also been highlighted by the measurements. These measurements are discussed and compared to existing models.

sted, utgiver, år, opplag, sider
2010. Vol. 28, nr 2, s. 277-284
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-57939DOI: 10.1017/S0263034610000170OAI: oai:DiVA.org:liu-57939DiVA, id: diva2:329316
Tilgjengelig fra: 2010-07-09 Laget: 2010-07-09 Sist oppdatert: 2017-12-12

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