TY - JOUR
T1 - Analytical and MonteCarlo approaches to infer the total gamma ray emission from the JET tokamak
AU - Marcer, G.
AU - Zohar, A.
AU - Dal Molin, A.
AU - Rigamonti, D.
AU - Rebai, M.
AU - Nocente, M.
AU - Panontin, E.
AU - Croci, G.
AU - Gorini, G.
AU - Grosso, G.
AU - Muraro, A.
AU - Perelli Cippo, E.
AU - Putignano, O.
AU - de la Luna, E.
AU - Ghani, Z.
AU - Conroy, S.
AU - Garcia, J.
AU - Kazakov, Y.
AU - Kiptily, V.
AU - Maslov, M.
AU - Nave, M.
AU - Ongena, J.
AU - Tardocchi, M.
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/5/1
Y1 - 2023/5/1
N2 - A single gamma-ray spectrometer installed at the end of a collimator can be used to infer the total emission from a tokamak plasma if the transport of gamma-rays from the plasma to the detector is known. In such analysis, the plasma emission profile plays a fundamental role, since it impacts the fraction of plasma volume intercepted by the detector line of sight. In this work, the DT 17 MeV fusion gamma-rays emission profile of the JET discharge #99608 from second 46 to 48 has been estimated both with the TRANSP code and reconstructed through tomographic inversion based on the neutron camera data, assuming that fusion gamma-rays have the same profile as the 14 MeV fusion neutrons. The gamma-ray transport has been evaluated both by MonteCarlo simulations and analytical calculations. By combining MonteCarlo and analytical evaluations of the gamma-ray transport in different ways with the estimated radiation emission profile, we provide four different routes to determine the total gamma-ray yield from measurements whose results agree within better than 10%.
AB - A single gamma-ray spectrometer installed at the end of a collimator can be used to infer the total emission from a tokamak plasma if the transport of gamma-rays from the plasma to the detector is known. In such analysis, the plasma emission profile plays a fundamental role, since it impacts the fraction of plasma volume intercepted by the detector line of sight. In this work, the DT 17 MeV fusion gamma-rays emission profile of the JET discharge #99608 from second 46 to 48 has been estimated both with the TRANSP code and reconstructed through tomographic inversion based on the neutron camera data, assuming that fusion gamma-rays have the same profile as the 14 MeV fusion neutrons. The gamma-ray transport has been evaluated both by MonteCarlo simulations and analytical calculations. By combining MonteCarlo and analytical evaluations of the gamma-ray transport in different ways with the estimated radiation emission profile, we provide four different routes to determine the total gamma-ray yield from measurements whose results agree within better than 10%.
KW - Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
KW - Gamma detectors (scintillators, CZT, HPGe, HgI etc)
KW - Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)
UR - http://www.scopus.com/inward/record.url?scp=85160348134&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/18/05/C05020
DO - 10.1088/1748-0221/18/05/C05020
M3 - Article
AN - SCOPUS:85160348134
SN - 1748-0221
VL - 18
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 5
M1 - C05020
ER -