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Title: Different effects of a laser prepulse on the proton generation between plastic and metal targets irradiated by an ultraintense laser pulse

Abstract

The effect of a laser prepulse on the generation of proton beams is compared between plastic and metal targets by irradiating a 30 fs, 2.4x10{sup 18} W/cm{sup 2} Ti:sapphire laser pulse. Proton energies generated from both target materials increase as the pulse duration of the laser prepulse decreases. However, it was found that there are distinct differences with respect to target materials. In the case of aluminum targets, as target thickness decreases, proton energy gets higher, which is well described by an isothermal expansion model. However, in the case of Mylar targets, no such dependence on target thickness could be observed, and the highest maximum proton energies are higher by factors of 1.5 to 3 than those from aluminum targets or those predicted by the isothermal expansion model. Such characteristics of the proton beams from Mylar targets can be accounted for by a bulk acceleration model, or acceleration by a resistively induced electric field.

Authors:
; ; ; ;  [1];  [1]
  1. Quantum Optics Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of)
Publication Date:
OSTI Identifier:
21272473
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 16; Journal Issue: 1; Other Information: DOI: 10.1063/1.3056398; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LASER RADIATION; LASER-PRODUCED PLASMA; MYLAR; PROTON BEAMS; PROTON SOURCES

Citation Formats

Lee, K, Cha, Y -H, Lee, Y W, Park, S H, Jeong, Y U, Lee, J Y, and Department of Applied Optics and Electromagnetics, Hannam University, Daejeon 306-791. Different effects of a laser prepulse on the proton generation between plastic and metal targets irradiated by an ultraintense laser pulse. United States: N. p., 2009. Web. doi:10.1063/1.3056398.
Lee, K, Cha, Y -H, Lee, Y W, Park, S H, Jeong, Y U, Lee, J Y, & Department of Applied Optics and Electromagnetics, Hannam University, Daejeon 306-791. Different effects of a laser prepulse on the proton generation between plastic and metal targets irradiated by an ultraintense laser pulse. United States. https://doi.org/10.1063/1.3056398
Lee, K, Cha, Y -H, Lee, Y W, Park, S H, Jeong, Y U, Lee, J Y, and Department of Applied Optics and Electromagnetics, Hannam University, Daejeon 306-791. 2009. "Different effects of a laser prepulse on the proton generation between plastic and metal targets irradiated by an ultraintense laser pulse". United States. https://doi.org/10.1063/1.3056398.
@article{osti_21272473,
title = {Different effects of a laser prepulse on the proton generation between plastic and metal targets irradiated by an ultraintense laser pulse},
author = {Lee, K and Cha, Y -H and Lee, Y W and Park, S H and Jeong, Y U and Lee, J Y and Department of Applied Optics and Electromagnetics, Hannam University, Daejeon 306-791},
abstractNote = {The effect of a laser prepulse on the generation of proton beams is compared between plastic and metal targets by irradiating a 30 fs, 2.4x10{sup 18} W/cm{sup 2} Ti:sapphire laser pulse. Proton energies generated from both target materials increase as the pulse duration of the laser prepulse decreases. However, it was found that there are distinct differences with respect to target materials. In the case of aluminum targets, as target thickness decreases, proton energy gets higher, which is well described by an isothermal expansion model. However, in the case of Mylar targets, no such dependence on target thickness could be observed, and the highest maximum proton energies are higher by factors of 1.5 to 3 than those from aluminum targets or those predicted by the isothermal expansion model. Such characteristics of the proton beams from Mylar targets can be accounted for by a bulk acceleration model, or acceleration by a resistively induced electric field.},
doi = {10.1063/1.3056398},
url = {https://www.osti.gov/biblio/21272473}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 1,
volume = 16,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2009},
month = {Thu Jan 15 00:00:00 EST 2009}
}