TY - JOUR
T1 - Study of a thick target surface ionizer at INS
AU - Ikeda, Nobuo
AU - Shirakabe, Y.
AU - Tanaka, J.
AU - Nomura, T.
AU - Ohkawa, S.
AU - Takaku, S.
AU - Oyaizu, M.
AU - Kawakami, H.
AU - Katayama, I.
AU - Shinozuka, T.
PY - 1992/8/1
Y1 - 1992/8/1
N2 - A surface-ionization ion source for the use of a thick target has been studied by an isotope separator on-line at INS using the 40Ca(p,2pn)38K reaction. The ionization efficiency and release time were measured for CaC2, CaO and CaF2 targets. The measured efficiency turned out to be about 20% both for tantalum and platinum surface ionizers. The release time was also deduced for each target at various values of temperature by measuring time distributions of the extracted radioactivity after bombarding the target for a short time.
AB - A surface-ionization ion source for the use of a thick target has been studied by an isotope separator on-line at INS using the 40Ca(p,2pn)38K reaction. The ionization efficiency and release time were measured for CaC2, CaO and CaF2 targets. The measured efficiency turned out to be about 20% both for tantalum and platinum surface ionizers. The release time was also deduced for each target at various values of temperature by measuring time distributions of the extracted radioactivity after bombarding the target for a short time.
UR - http://www.scopus.com/inward/record.url?scp=0008259983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0008259983&partnerID=8YFLogxK
U2 - 10.1016/0168-583X(92)95924-G
DO - 10.1016/0168-583X(92)95924-G
M3 - Article
AN - SCOPUS:0008259983
SN - 0168-583X
VL - 70
SP - 150
EP - 155
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1-4
ER -