TY - GEN
T1 - Measurements of [11C]CO2 in exhaled air with a positron-sensitive single-wire proportional counter after i.v. injection of [11C]acetate
AU - Sipila, Hannu T.
AU - Heselius, Sven Johan
AU - Kalliokoski, Matti K.
AU - Kemppainen, Jukka
AU - Minn, Heikki
AU - Tolvanen, Tuula
AU - Roivainen, Anne
PY - 2011/1/1
Y1 - 2011/1/1
N2 - A positron-sensitive, large-window single-wire proportional counter was used for measurements of [11C]CO2 in exhaled air after i.v. injection of [11C]acetate. The performance of the proportional counter was studied using Geant4 and Garfield simulation tools as well as experimentally by injections of known amounts of radioactive gas into the measuring volume. The proportional counter was found to be sensitive enough for measuring the low concentrations of [11C]CO2 in the air exhaled by patients after i.v. injection of an 11C-labelled radiopharmaceutical. The limit of detection was 200 Bq/L for [ 11C]CO2.
AB - A positron-sensitive, large-window single-wire proportional counter was used for measurements of [11C]CO2 in exhaled air after i.v. injection of [11C]acetate. The performance of the proportional counter was studied using Geant4 and Garfield simulation tools as well as experimentally by injections of known amounts of radioactive gas into the measuring volume. The proportional counter was found to be sensitive enough for measuring the low concentrations of [11C]CO2 in the air exhaled by patients after i.v. injection of an 11C-labelled radiopharmaceutical. The limit of detection was 200 Bq/L for [ 11C]CO2.
UR - http://www.scopus.com/inward/record.url?scp=84858689011&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2011.6152653
DO - 10.1109/NSSMIC.2011.6152653
M3 - Conference contribution
SN - 9781467301183
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 2397
EP - 2399
BT - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PB - IEEE
T2 - IEEE Nuclear Science Symposium and Medical Imaging Conference
Y2 - 23 October 2011 through 29 October 2011
ER -