Production and Compilation ofCharge Changing Cross Sections of

Ion-Atom and Ion-Molecule Collisions

Makoto Imaiimai@nucleng.kyoto-u.ac.jp

Department of Nuclear Engineering, Kyoto University

京都大学 原子核工学専攻今井 誠

KR-JP/JP-KR Joint Workshop, KAERI, Daejeon, Feb 1, 2007

Outline Compilation of experimental charge changing cross

sections from literature(co-operative activity between JAEA and Kyoto Univ.)

• Compilation since 1983• Electric version (prototype) started in 2006

http://toshi3.nucleng.kyoto-u.ac.jp:5560/isqlplus/

Production (measurements) of charge changing (e-capture) cross sections of some fusion-related collision systemsat Kyoto Univ.

Be1,2+, B1,2+, C1,2,3+, Cr1,2+, Fe+, Ni1,2+, W+

+ He, Ne, Ar, Kr, H2, CO, CO2, N2, CH4, C2H6, C3H8

◆ Number of Collected Papers ◆ Journals under the survey

Atomic Data and Nuclear Data TablesThe European Physical Journal DEurophysics LettersJETPJETP LettersJournal of Physical and Chemical Reference DataJournal of the Physical Society of JapanJournal of Physics B: Atomic, Molecular and Optical PhysicsNuclear Instruments and Methods in Physics Research sect. ANuclear Instruments and Methods in Physics Research sect. BPhysica ScriptaPhysical Review APhysics Letters A

Year Total Partial Misc Total

19831989 57 57

1990 16 16

1991 20 20

1992 12 12 24

1993 7 4 11

1994 10 8 18

1995 10 6 4 20

1996 7 2 2 11

1997 12 1 2 15

1998 5 6 1 12

1999 6 4 5 15

2000 6 1 3 10

2001 18 2 5 25

2002 3 2 6 11

2003 12 1 12 25

2004 12 1 8 21

2005 11 4 11 26

Total 223 54 60 337

Compilation of Experimental Charge Changing Cross Sections

Production of Absolute Cross Sections forFusion Related Electron Capture Processes

Energy = (0.5) 5 - 32 keVTill 1994 C1,2,3+ + H2 , CO2 , CH4 , C2H6 , C3H8

1995 1997 Cr1,2+ + He, Ne, Ar, Kr, H2 , CO, CO2 , CH4 , C2H6 , C3H8

Be1,2+ + He, Ne, Ar, Kr, H2 , CO, CO2 , CH4 , C2H6 , C3H8

1998 2000 Ni1,2+ + He, Ne, Ar, Kr, H2, CO, CO2 , N2 , CH4 , C2H6 , C3H8

2001 2004 Fe+ + He, Ne, Ar, Kr, H2 , CO, CO2 , N2 , CH4 , C2H6 , C3H8

Be1,2+ + He, Ne, Ar, Kr, H2 , CO, CO2

B1,2+ + He, Ne, Ar, Kr, H2 , CO, CO2

2005 present W+ + He, Ne, Ar, Kr, H2 , N2

W will be used as DIVERTOR Buffle and Dome in the ITER!

Be will be used as the First Wall Material in the ITER!

IAEA Coordinated Research Project (CRP) on “Atomic Data for Heavy Element Impurities” (2005 – 2009) requires data for elements with atomic mass ≥ 13; (Ar, Kr, Xe), Si, Cl, Cr, Fe, Ni, Cu, Mo and W!

The Experimental Apparatus

0 500 1000Electric Field (arb. unit)

100

101

102

103

104

Inte

nsi

ty

W+ (414ch)

Base Pressure< 4×10−5 Pa

Base Pressure< 3×10−6 Pa

Einzel Lens

Collision Chamber

Wien FilterIon Source Chamber

Accelerating Electrodes

Neutral Particle Rejector

W Wire

Deflector

Collision Cell

MCP

Pump Beam0.8MeV CO2＋

Biased Resistive Anode

Signal 1

Sig

nal

2

Accel. HV < 16 KV

Single and double electron capture cross sections σ10, σ21 and σ20 for Be and B ions.

J. Plasma Fusion Res. SERIES Vol.7, pp.323-326.

1.0

H2

CH4

C2H6

C3H8

COCO2

10-18

10-17

10-16

10-15

E n e r g y (keV/u)1.0

C r

o s

s

S e

c t

i o n

(

cm2 )

10-18

10-17

10-16

10-15

10

21

20

theories

HeNeArKr

0.3 0.35.0 5.0

(a) Be+, 2+

(a') Be+, 2+

(b) B+, 2+

(b') B+, 2+

Single and double electron capture cross sections σ10, σ21 and σ20 for Fe and Ni ions.

J. Plasma Fusion Res. SERIES Vol.7, pp. 323-326.

10-19

10-18

10-17

10-16

10-15 10

Layton et al.

E n e r g y (eV/u)

C r

o s

s

S e

c t

i o n

(c

m2 )

10-19

10-18

10-17

10-16

10-15

HeArKr

10 100

H2

CH4

C2H6

C3H8

COCO2

N2

(a) Fe+

(a') Fe+

(b1) Ni+

(b1') Ni+

21

20

(b2) Ni2+

(b2') Ni2+

50 50100 1001000