Measurement ofH−,H0, and

M. S. Gulley

¹

,

P. Keating

²

,

H. C. Bryant

³

et al.

Measurement of 181 MeV H − ions stripping cross-sections by carbon stripper foil

“…The measurement errors of the H 0 and H À charge fractions in most cases are even smaller than the size of the symbols representing the yields. The dotted and dashed lines are also the same as the ones calculated for 181 MeV obtained by using energy scaled cross-sections of the previously measured data at 200 MeV [4] and 800 MeV [5], respectively. The energy scaling was done by using 1=β 2 hypothesis [9].…”

“…(1)-(3) are shown by black, blue and red solid lines, respectively. The dotted and dashed lines are also the calculated ones for 181 MeV obtained by using energy (1=β 2 ) scaled cross-sections of the previously measured data at 200 MeV[4] and 800 MeV[5], respectively. (For interpretation of the references to color in this figure caption, the reader is referred to the web version of this paper.…”

“…There exists only two earlier measurements of the H À stripping cross-sections by carbon foils at 200 and 800 MeV of the H À ion beam energies [4,5]. The earlier experiment at 200 MeV unfortunately gave an uncertain value for the σ À 11 cross-section, while the measurement errors were also as high as 10%.…”

Stripping efficiency and lifetime of carbon foils

“…Several cross section measurements of H -ion incident on carbon foil at different energies have been reported [6][7][8][9][10][11]. For example, Figure 5 shows the data at 200 MeV measured by Webber and Hojvat [8] and Figure 6 the data measured by Gulley et al at 800 MeV [7].…”

“…For example, Figure 5 shows the data at 200 MeV measured by Webber and Hojvat [8] and Figure 6 the data measured by Gulley et al at 800 MeV [7].…”