TY - JOUR
T1 - The proposed spallation neutron source and modernized reactor as possible sites for a low temperature irradiation facility in Germany
AU - Böning, K.
AU - Gläser, W.
AU - Golub, R.
AU - Meier, J.
N1 - Funding Information:
* Work supported by the German “Bundesministerium Forschung und Technologie”.
PY - 1982
Y1 - 1982
N2 - A feasibility study for a Spallation Neutron Source (SNQ) in Germany was completed in June 1981. In this project an intensity-modulated LINAC (100 pps) would provide a proton beam of energy 1100 MeV and time-average current I ̄p = 5 mA. Spallation neutrons are produced in the lead material of a rotating target wheel and moderated in a hybrid arrangement consisting of both a small H2O volume and a large D2O tank. Here the maximum values of the peak and time-average thermal fluxes are \ ̂gfth ≈ 1.3 × 1016 cm-2 s-1 and \ ̄gfth ≈ 6.5 × 1014 cm-2 s-1, respectively. A low temperature irradiation facility (LTIF) has been proposed to allow irradiations in the temperature range of 4.5 to 450 K with either thermal neutrons ( \ ̄gfth ≈ 1 × 1014 cm-2 s-1) or fast neutrons ( \ ̄gff ≈ 2 × 1013 cm-2 s-1). The advantages and disadvantages of having this LTIF at the SNQ are discussed with respect to the alternative of installing it at a fission reactor. Finally, the example of a possible modernization and upgrading of the Munich research reactor FRM is used to discuss the performance of such a reactor and the concept of a LTIF in this case, and to point out the complementarity of an optimized SNQ (high- \ ̂gf applications) and such a modernized reactor (high- \ ̄gf applications).
AB - A feasibility study for a Spallation Neutron Source (SNQ) in Germany was completed in June 1981. In this project an intensity-modulated LINAC (100 pps) would provide a proton beam of energy 1100 MeV and time-average current I ̄p = 5 mA. Spallation neutrons are produced in the lead material of a rotating target wheel and moderated in a hybrid arrangement consisting of both a small H2O volume and a large D2O tank. Here the maximum values of the peak and time-average thermal fluxes are \ ̂gfth ≈ 1.3 × 1016 cm-2 s-1 and \ ̄gfth ≈ 6.5 × 1014 cm-2 s-1, respectively. A low temperature irradiation facility (LTIF) has been proposed to allow irradiations in the temperature range of 4.5 to 450 K with either thermal neutrons ( \ ̄gfth ≈ 1 × 1014 cm-2 s-1) or fast neutrons ( \ ̄gff ≈ 2 × 1013 cm-2 s-1). The advantages and disadvantages of having this LTIF at the SNQ are discussed with respect to the alternative of installing it at a fission reactor. Finally, the example of a possible modernization and upgrading of the Munich research reactor FRM is used to discuss the performance of such a reactor and the concept of a LTIF in this case, and to point out the complementarity of an optimized SNQ (high- \ ̂gf applications) and such a modernized reactor (high- \ ̄gf applications).
UR - http://www.scopus.com/inward/record.url?scp=0019699248&partnerID=8YFLogxK
U2 - 10.1016/0022-3115(82)90465-2
DO - 10.1016/0022-3115(82)90465-2
M3 - Article
AN - SCOPUS:0019699248
SN - 0022-3115
VL - 108-109
SP - 10
EP - 20
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - C
ER -