DIRECT HIGH-ENERGY NEUTRAL-CHANNEL DISSOCIATIVE RECOMBINATION OF COLD H3+ IN AN ION STORAGE RING

被引:133
作者
LARSSON, M
DANARED, H
MOWAT, JR
SIGRAY, P
SUNDSTROM, G
BROSTROM, L
FILEVICH, A
KALLBERG, A
MANNERVIK, S
RENSFELT, KG
DATZ, S
机构
[1] MANNE SIEGBAHN INST PHYS, S-10405 STOCKHOLM, SWEDEN
[2] N CAROLINA STATE UNIV, DEPT PHYS, RALEIGH, NC 27695 USA
[3] COMIS NACL ENERGIA ATOM, DEPT PHYS, RA-1429 BUENOS AIRES, DF, ARGENTINA
[4] OAK RIDGE NATL LAB, DIV PHYS, OAK RIDGE, TN 37831 USA
关键词
D O I
10.1103/PhysRevLett.70.430
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The cross section for neutral-channel dissociative recombination of vibrationally cooled H-3+ at energies between 0.0025 and 30 eV has been measured by utilizing the electron cooler at the storage ring CRYRING. The molecular ions were stored at an energy of 32.6 MeV and phase-space cooled by the electron cooler for about 8 s prior to data taking. A peak in the cross section at 9.5 eV is interpreted as a direct adiabatic neutral-channel recombination through the 2A1 resonant state. The cross section below 1 eV is in rather good agreement with single-pass data.
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页码:430 / 433
页数:4
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