To increase the efficiency of laser-driven ion acceleration, a method for in-situ target cleaning by heating action of the continuous wave (CW) laser was developed. On a 20 TW picosecond laser facility, experiments on ion acceleration from heated Ti and Ta targets of 1 μm thickness were conducted. CW laser cleaning allowed an increase in carbon and oxygen ion energies by 2.5 times up to 65 MeV. Ta ions with energies of up to 47 MeV were registered in experiments. Their linear energy transfer exceeds 35 MeV·cm2/mg, thus making these particles suitable for the investigation of single event effects in microelectronic devices induced by protons from solar flares.

1.
T. E.
Cowan
,
J.
Fuchs
,
H.
Ruhl
,
A.
Kemp
,
P.
Audebert
,
M.
Roth
,
R.
Stephens
,
I.
Barton
,
A.
Blazevic
,
E.
Brambrink
,
J.
Cobble
,
J.
Fernández
,
J.-C.
Gauthier
,
M.
Geissel
,
M.
Hegelich
,
J.
Kaae
,
S.
Karsch
,
G. P.
Le Sage
,
S.
Letzring
,
M.
Manclossi
,
S.
Meyroneinc
,
A.
Newkirk
,
H.
Pépin
, and
N.
Renard-LeGalloudec
, “
Ultralow emittance, multi-MeV proton beams from a laser virtual-cathode plasma accelerator
,”
Phys. Rev. Lett.
92
,
204801
(
2004
).
2.
P.
McKenna
,
K. W. D.
Ledingham
,
T.
McCanny
,
R. P.
Singhal
,
I.
Spencer
,
M. I. K.
Santala
,
F. N.
Beg
,
K.
Krushelnick
,
M.
Tatarakis
,
M. S.
Wei
,
E. L.
Clark
,
R. J.
Clarke
,
K. L.
Lancaster
,
P. A.
Norreys
,
K.
Spohr
,
R.
Chapman
, and
M.
Zepf
,
Phys. Rev. Lett.
91
,
075006
(
2003
).
3.
M.
Roth
,
I.
Alber
,
V.
Bagnoud
,
C. R. D.
Brown
,
R.
Clarke
,
H.
Daido
,
J.
Fernandez
,
K.
Flippo
,
S.
Gaillard
,
C.
Gauthier
,
M.
Geissel
,
S.
Glenzer
,
G.
Gregori
,
M.
Günther
,
K.
Harres
,
R.
Heathcote
,
A.
Kritcher
,
N.
Kugland
,
S.
LePape
,
B.
Li
,
M.
Makita
,
J.
Mithen
,
C.
Niemann
,
F.
Nürnberg
,
D.
Offermann
,
A.
Otten
,
A.
Pelka
,
D.
Riley
,
G.
Schaumann
,
M.
Schollmeier
,
J.
Schütrumpf
,
M.
Tampo
,
A.
Tauschwitz
, and
A.
Tauschwitz
, “
Proton acceleration experiments and warm dense matter research using high power lasers
,”
Plasma Phys. Controlled Fusion
51
,
124039
(
2009
).
4.
S. V.
Bulanov
and
V. S.
Khoroshkov
, “
Feasibility of using laser ion accelerators in proton therapy
,”
Plasma Phys. Rep.
28
,
453
(
2002
).
5.
M.
Roth
,
T. E.
Cowan
,
M. H.
Key
,
S. P.
Hatchett
,
C.
Brown
,
W.
Fountain
,
J.
Johnson
,
D. M.
Pennington
,
R. A.
Snavely
,
S. C.
Wilks
,
K.
Yasuike
,
H.
Ruhl
,
F.
Pegoraro
,
S. V.
Bulanov
,
E. M.
Campbell
,
M. D.
Perry
, and
H.
Powell
, “
Fast ignition by intense laser-accelerated proton beams
,”
Phys. Rev. Lett.
86
,
436
(
2001
).
6.
S. C.
Wilks
,
A. B.
Langdon
,
T. E.
Cowan
,
M.
Roth
,
M.
Singh
,
S.
Hatchett
,
M. H.
Key
,
D.
Pennington
,
A.
MacKinnon
, and
R. A.
Snavely
, “
Energetic proton generation in ultra-relativistic laser-solid interactions
,”
Phys. Plasmas
8
,
542
(
2001
).
7.
J.
Braenzel
,
A. A.
Andreev
,
K.
Platonov
,
M.
Klingsporn
,
L.
Ehrentraut
,
W.
Sandner
, and
M.
Schnürer
, “
Coulomb-driven energy boost of heavy ions for laser-plasma acceleration
,”
Phys. Rev. Lett.
114
,
124801
(
2015
).
8.
B. M.
Hegelich
,
B.
Albright
,
P.
Audebert
,
A.
Blazevic
,
E.
Brambrink
,
J.
Cobble
,
T.
Cowan
,
J.
Fuchs
,
J. C.
Gauthier
,
C.
Gautier
,
M.
Geissel
,
D.
Habs
,
R.
Johnson
,
S.
Karsch
,
A.
Kemp
,
S.
Letzring
,
M.
Roth
,
U.
Schramm
,
J.
Schreiber
,
K. J.
Witte
, and
J. C.
Fernández
, “
Spectral properties of laser-accelerated mid-Z MeV/u ion beams
,”
Phys. Plasmas
12
,
056314
(
2005
).
9.
P.
McKenna
,
K. W. D.
Ledingham
,
J. M.
Yang
,
L.
Robson
,
T.
McCanny
,
S.
Shimizu
,
R. J.
Clarke
,
D.
Neely
,
K.
Spohr
,
R.
Chapman
,
R. P.
Singhal
,
K.
Krushelnick
,
M. S.
Wei
, and
P. A.
Norreys
, “
Characterization of proton and heavier ion acceleration in ultrahigh-intensity laser interactions with heated target foils
,”
Phys. Rev. E
70
,
036405
(
2004
).
10.
D.
Jung
,
L.
Yin
,
D. C.
Gautier
,
H.-C.
Wu
,
S.
Letzring
,
B.
Dromey
,
R.
Shah
,
S.
Palaniyappan
,
T.
Shimada
,
R. P.
Johnson
,
J.
Schreiber
,
D.
Habs
,
J. C.
Fernández
,
B. M.
Hegelich
, and
B. J.
Albright
, “
Laser-driven 1 GeV carbon ions from preheated diamond targets in the break-out afterburner regime
,”
Phys. Plasmas
20
,
083103
(
2013
).
11.
J. C.
Fernandez
,
B. M.
Hegelich
,
J. A.
Cobble
,
K. A.
Flippo
,
S. A.
Letzring
,
R. P.
Johnson
,
D. C.
Gautier
,
T.
Shimada
,
G. A.
Kyrala
,
Y.
Wang
,
C. J.
Wetteland
, and
J.
Schreiber
, “
Laser-ablation treatment of short-pulse laser targets: Toward an experimental program on energetic-ion interactions with dense plasmas
,”
Laser Part. Beams
23
,
267
(
2005
).
12.
K.
Flippo
,
B. M.
Hegelich
,
B. J.
Albright
,
L.
Yin
,
D. C.
Gautier
,
S.
Letzring
,
M.
Schollmeier
,
J.
Schreiber
,
R.
Schulze
, and
J. C.
Fernandez
, “
Laser-driven ion accelerators: Spectral control, monoenergetic ions and new acceleration mechanisms
,”
Laser Part. Beams
25
,
3
(
2007
).
13.
M.
Allen
,
P. K.
Patel
,
A.
Mackinnon
,
D.
Price
,
S.
Wilks
, and
E.
Morse
, “
Direct experimental evidence of back-surface ion acceleration from laser-irradiated gold foils
,”
Phys. Rev. Lett.
93
,
265004
(
2004
).
14.
K.
LaBel
, http://radhome.gsfc.nasa.gov for Proton single event effects (SEE) guideline (
2009
).
15.
D.
Ng
and
G.
Fralick
, “
Use of a multiwavelength pyrometer in several elevated temperature aerospace applications
,”
Rev. Sci. Instrum.
72
,
1522
(
2001
).
16.
A.
Mančić
,
J.
Fuchs
,
P.
Antici
,
S. A.
Gaillard
, and
P.
Audebert
, “
Absolute calibration of photostimulable image plate detectors used as (0.5–20 MeV) high-energy proton detectors
,”
Rev. Sci. Instrum.
79
,
073301
(
2008
).
17.
A.
Alejo
,
S.
Kar
,
H.
Ahmed
,
A. G.
Krygier
,
D.
Doria
,
R.
Clarke
,
J.
Fernandez
,
R. R.
Freeman
,
J.
Fuchs
,
A.
Green
,
J. S.
Green
,
D.
Jung
,
A.
Kleinschmidt
,
C. L. S.
Lewis
,
J. T.
Morrison
,
Z.
Najmudin
,
H.
Nakamura
,
G.
Nersisyan
,
P.
Norreys
,
M.
Notley
,
M.
Oliver
,
M.
Roth
,
J. A.
Ruiz
,
L.
Vassura
,
M.
Zepf
, and
M.
Borghesi
, “
Characterization of deuterium spectra from laser driven multi-species sources by employing differentially filtered image plate detectors in Thomson spectrometers
,”
Rev. Sci. Instrum.
85
,
093303
(
2014
).
18.
J.
Schreiber
,
F.
Bell
,
F.
Grüner
,
U.
Schramm
,
M.
Geissler
,
M.
Schnürer
,
S.
Ter-Avetisyan
,
B. M.
Hegelich
,
J.
Cobble
,
E.
Brambrink
,
J.
Fuchs
,
P.
Audebert
, and
D.
Habs
, “
Analytical model for ion acceleration by high-intensity laser pulses
,”
Phys. Rev. Lett.
97
,
045005
(
2006
).

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