Total electron-loss cross sections and absolute charge state yields of 20-MeV Fe ions transmitted through gaseous targets

Journal Article · Wed Feb 28 23:00:00 EST 1979 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.19.1029· OSTI ID:6133418

Knudsen, H; Moak, C D; Jones, C M; Miller, P D; Sayer, R O; Alton, G D; Bridwell, L B

Absolute charge-state yields of 20-MeV Fe ions emerging within a large acceptance angle from a differentially pumped gas cell of length 9.4 cm have been measured using N/sub 2/, Ar, Kr, Xe, and SF/sub 6/ targets. The gas pressures ranged from 2 to 400 mTorr, thereby including target thicknesses where single events dominate the charge change, as well as target thicknesses where charge-state equilibrium is established. From the low-pressure yields total cross sections, sigma/sub 4q/ with q = 5--15 were obtained using an improved version of the initial growth method.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• OSTI ID: 6133418
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 19:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON
ATOMIC IONS
CHARGE STATE
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
CROSS SECTIONS
CRYOGENIC FLUIDS
ELECTRON LOSS
ELEMENTS
ENERGY RANGE
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONS
IRON IONS
KRYPTON
MEDIUM VACUUM
MEV RANGE
MEV RANGE 10-100
NITROGEN
NONMETALS
RADIATION TRANSPORT
RARE GASES
SULFUR COMPOUNDS
SULFUR FLUORIDES
XENON