TY - JOUR
T1 - Trace analysis of 55Fe in biosphere and technology by means of AMS
AU - Korschinek, G.
AU - Müller, D.
AU - Faestermann, T.
AU - Gillitzer, A.
AU - Nolte, E.
AU - Paul, M.
PY - 1990/12/2
Y1 - 1990/12/2
N2 - Iron is a very important element in the biosphere and in material technology. Labeling and tracing methods in connection with the sensitive AMS method offer therefore a wide field of applications for 55Fe. We have used a TOF system with channel plate detectors and a Bragg ionization chamber which yields Z and E information. In conjunction with a Wien filter behind the tandem, a significant reduction of neighbouring Fe isotopes was achieved resulting in a sensitivity of about 8 × 10-13 for 55Fe/Fe in a first measurement, corresponding to an activity of about 0.1 Bq in a 10 mg sputter target. The stable isobar 55Mn did not contribute as we could not observe Mn- in our system.
AB - Iron is a very important element in the biosphere and in material technology. Labeling and tracing methods in connection with the sensitive AMS method offer therefore a wide field of applications for 55Fe. We have used a TOF system with channel plate detectors and a Bragg ionization chamber which yields Z and E information. In conjunction with a Wien filter behind the tandem, a significant reduction of neighbouring Fe isotopes was achieved resulting in a sensitivity of about 8 × 10-13 for 55Fe/Fe in a first measurement, corresponding to an activity of about 0.1 Bq in a 10 mg sputter target. The stable isobar 55Mn did not contribute as we could not observe Mn- in our system.
UR - http://www.scopus.com/inward/record.url?scp=34248163626&partnerID=8YFLogxK
U2 - 10.1016/0168-583X(90)90465-7
DO - 10.1016/0168-583X(90)90465-7
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AN - SCOPUS:34248163626
SN - 0168-583X
VL - 52
SP - 498
EP - 501
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 - 3-4
ER -