TY - JOUR
T1 - Plastic scintillation detectors for time-of-flight mass measurements
AU - Wang, K.
AU - Estrade, A.
AU - Neupane, S.
AU - Barber, M.
AU - Famiano, M.
AU - Ginter, T.
AU - McClain, D.
AU - Nepal, N.
AU - Pereira, J.
AU - Schatz, H.
AU - Zimba, G.
N1 - Funding Information:
We are grateful to the operation staff of the NSCL for providing the 48 Ca beam. This work was supported in part by the US Department of Energy under Grant No. DE-SC0020406, and the US National Science Foundation under Grant Nos. PHY-1712832 , PHY-1714153 and PHY-1430152 . K. Wang acknowledges the support by FRIB-CSC Research Fellow Program .
Funding Information:
We are grateful to the operation staff of the NSCL for providing the 48Ca beam. This work was supported in part by the US Department of Energy under Grant No. DE-SC0020406, and the US National Science Foundation under Grant Nos. PHY-1712832, PHY-1714153 and PHY-1430152. K. Wang acknowledges the support by FRIB-CSC Research Fellow Program.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/9/11
Y1 - 2020/9/11
N2 - Fast timing detectors are an essential element in the experimental setup for time-of-flight (ToF) mass measurements of unstable nuclei. We have upgraded the scintillator detectors used in experiments at the National Superconducting Cyclotron Laboratory (NSCL) by increasing the number of photomultiplier tubes that read out their light signals to four per detector, and characterized them in a test experiment with 48Ca beam at the NSCL. The new detectors achieved a time resolution (σ) of 7.5 ps. We systematically investigated different factors that affect their timing performance. In addition, we evaluated the ability of positioning the hitting points on the scintillator using the timing information and obtained a resolution (σ) below 1 mm for well-defined beam spots.
AB - Fast timing detectors are an essential element in the experimental setup for time-of-flight (ToF) mass measurements of unstable nuclei. We have upgraded the scintillator detectors used in experiments at the National Superconducting Cyclotron Laboratory (NSCL) by increasing the number of photomultiplier tubes that read out their light signals to four per detector, and characterized them in a test experiment with 48Ca beam at the NSCL. The new detectors achieved a time resolution (σ) of 7.5 ps. We systematically investigated different factors that affect their timing performance. In addition, we evaluated the ability of positioning the hitting points on the scintillator using the timing information and obtained a resolution (σ) below 1 mm for well-defined beam spots.
KW - Photomultiplier tubes
KW - Plastic scintillator
KW - Time-of-flight mass measurement
KW - Time-walk correction
UR - http://www.scopus.com/inward/record.url?scp=85085658808&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2020.164199
DO - 10.1016/j.nima.2020.164199
M3 - Article
AN - SCOPUS:85085658808
VL - 974
JO - Nuclear Inst. and Methods in Physics Research, A
JF - Nuclear Inst. and Methods in Physics Research, A
SN - 0168-9002
M1 - 164199
ER -