Abstract
A continuous series of irradiation experiments (R139-series), with steel specimens for the determination of the post-irradiation mechanical properties of various steels and weld materials, is being performed for the ECN materials testing programme on nuclear construction materials during many years. From the detailed monitoring of the irradiation conditions (temperature, neutron flux distribution, and thermal to fast neutron flux density ratio) of the specimens, the capsules are extensively instrumented with thermocouples, monitors for neutron metrology, and scan wires for additional gamma spectrometry measurements to determine the gradient of the thermal and fast flux distribution along the vertical length of the capsules (length of the stack piles of the specimens). The purpose of the gamma scanwires to get information about the neutron fluence distribution in the capsules during irradiation. In the wires the nuclides Co-58, Mn-54, Cr-51, Fe-59 and Co-60 are produced. These nuclides are characteristic for respectively fast and thermal neutron reactions. The gamma scan wires are made of stainless steel and have a diameter of 1 mm and a length of 310 mm. The length of scanwire 1 is 335 mm. For identification the wires are marked with a vane at the topside. (orig./HP)
Citation Formats
Dassel, G, Buurveld, H A, and Minkema, J.
Gammaspectrometry of R139-66/4.
Netherlands: N. p.,
1993.
Web.
Dassel, G, Buurveld, H A, & Minkema, J.
Gammaspectrometry of R139-66/4.
Netherlands.
Dassel, G, Buurveld, H A, and Minkema, J.
1993.
"Gammaspectrometry of R139-66/4."
Netherlands.
@misc{etde_10142513,
title = {Gammaspectrometry of R139-66/4}
author = {Dassel, G, Buurveld, H A, and Minkema, J}
abstractNote = {A continuous series of irradiation experiments (R139-series), with steel specimens for the determination of the post-irradiation mechanical properties of various steels and weld materials, is being performed for the ECN materials testing programme on nuclear construction materials during many years. From the detailed monitoring of the irradiation conditions (temperature, neutron flux distribution, and thermal to fast neutron flux density ratio) of the specimens, the capsules are extensively instrumented with thermocouples, monitors for neutron metrology, and scan wires for additional gamma spectrometry measurements to determine the gradient of the thermal and fast flux distribution along the vertical length of the capsules (length of the stack piles of the specimens). The purpose of the gamma scanwires to get information about the neutron fluence distribution in the capsules during irradiation. In the wires the nuclides Co-58, Mn-54, Cr-51, Fe-59 and Co-60 are produced. These nuclides are characteristic for respectively fast and thermal neutron reactions. The gamma scan wires are made of stainless steel and have a diameter of 1 mm and a length of 310 mm. The length of scanwire 1 is 335 mm. For identification the wires are marked with a vane at the topside. (orig./HP)}
place = {Netherlands}
year = {1993}
month = {Apr}
}
title = {Gammaspectrometry of R139-66/4}
author = {Dassel, G, Buurveld, H A, and Minkema, J}
abstractNote = {A continuous series of irradiation experiments (R139-series), with steel specimens for the determination of the post-irradiation mechanical properties of various steels and weld materials, is being performed for the ECN materials testing programme on nuclear construction materials during many years. From the detailed monitoring of the irradiation conditions (temperature, neutron flux distribution, and thermal to fast neutron flux density ratio) of the specimens, the capsules are extensively instrumented with thermocouples, monitors for neutron metrology, and scan wires for additional gamma spectrometry measurements to determine the gradient of the thermal and fast flux distribution along the vertical length of the capsules (length of the stack piles of the specimens). The purpose of the gamma scanwires to get information about the neutron fluence distribution in the capsules during irradiation. In the wires the nuclides Co-58, Mn-54, Cr-51, Fe-59 and Co-60 are produced. These nuclides are characteristic for respectively fast and thermal neutron reactions. The gamma scan wires are made of stainless steel and have a diameter of 1 mm and a length of 310 mm. The length of scanwire 1 is 335 mm. For identification the wires are marked with a vane at the topside. (orig./HP)}
place = {Netherlands}
year = {1993}
month = {Apr}
}