TY - JOUR
T1 - Effects of radiation damage on scintillating fibre calorimetry
AU - Acosta, D.
AU - DeSalvo, R.
AU - Hartjes, F. G.
AU - Henriques, A.
AU - Linssen, L.
AU - Maio, A.
AU - Ong, B.
AU - Paar, H. P.
AU - Pereira, M.
AU - Scheel, C. V.
AU - Sivertz, M.
AU - Sonderegger, P.
AU - Wigmans, R.
N1 - Funding Information:
and Staff of LNETI Sacavt;m for making the irradiations possible. We are indebted to the LAA project leader, Prof. A. Zichichi, for his interest and support for this project . The work described in this paper was supported in part by JNIGT Portugal and by the U.S. Department of Energy and National Science Foundation .
PY - 1991/11
Y1 - 1991/11
N2 - We report on measurements of radiation hardness of plastic scintillating fibres to be used for scintillating fibre calorimetry. Fibres were irradiated by a 60Co γ-source and the effects on the emission and on the attenuation of scintillation light in a number of different fibre types were studied. Results are given on the changes in the wavelength spectrum induced by ionising radiation. The influence of optical filters, glue and surrounding gas were investigated. A Monte Carlo study is described that simulates radiation damage in a compensating lead-fibre calorimeter and predicts the impact on the performance. By combining the results of the radiation hardness measurements of the fibres and the results of the Monte Carlo, a limit is set on the acceptable dose level. If we define a contribution of 0.8% to the constant term of the electromagnetic energy resolution due to radiation damage as an acceptable performance degradation, we determine, with the best fibres that are presently commercially available, an acceptable dose limit of 7 Mrad.
AB - We report on measurements of radiation hardness of plastic scintillating fibres to be used for scintillating fibre calorimetry. Fibres were irradiated by a 60Co γ-source and the effects on the emission and on the attenuation of scintillation light in a number of different fibre types were studied. Results are given on the changes in the wavelength spectrum induced by ionising radiation. The influence of optical filters, glue and surrounding gas were investigated. A Monte Carlo study is described that simulates radiation damage in a compensating lead-fibre calorimeter and predicts the impact on the performance. By combining the results of the radiation hardness measurements of the fibres and the results of the Monte Carlo, a limit is set on the acceptable dose level. If we define a contribution of 0.8% to the constant term of the electromagnetic energy resolution due to radiation damage as an acceptable performance degradation, we determine, with the best fibres that are presently commercially available, an acceptable dose limit of 7 Mrad.
UR - http://www.scopus.com/inward/record.url?scp=4243223653&partnerID=8YFLogxK
U2 - 10.1016/0168-583X(91)95937-9
DO - 10.1016/0168-583X(91)95937-9
M3 - Article
AN - SCOPUS:4243223653
SN - 0168-583X
VL - 62
SP - 116
EP - 132
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - 1
ER -