Abstract
The measurement of the /sup 56/Fe(n,p)/sup 56/Mn cross section at 14.7 MeV using the absolute standard neutron telescope developed at the Bhabha Atomic Research Centre is described. The neutron telescope was the basis of the recent international intercomparison of neutron flux performed under the auspices of the International Bureau of Weights and Measures and gave results with an accuracy of 3%. There is a discrepancy of about 10% in the recent absolute measurements of the /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV. The /sup 56/Mn activity of thin 99.9% pure iron foils obtained from the IAEA and irradiated on the front face of the telescope, at various distances from the target, was measured absolutely, using a 4..pi beta..-..gamma.. coincidence system. Corrections were applied for the time variation of the neutron flux on the foils activity. The recoil proton peak due to the 14.7 MeV neutrons hitting the polythene radiator had resolution of 12% at 12 cms from the target. The /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV is found to be (103 +- 3.5) mb.
Sharma, D;
Shahani, M G;
Phadnis, U V;
Sadavarte, S K
[1]
- Bhabha Atomic Research Centre, Bombay (India)
Citation Formats
Sharma, D, Shahani, M G, Phadnis, U V, and Sadavarte, S K.
Absolute measurement of /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14. 7 MeV using a neutron telescope.
India: N. p.,
1979.
Web.
Sharma, D, Shahani, M G, Phadnis, U V, & Sadavarte, S K.
Absolute measurement of /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14. 7 MeV using a neutron telescope.
India.
Sharma, D, Shahani, M G, Phadnis, U V, and Sadavarte, S K.
1979.
"Absolute measurement of /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14. 7 MeV using a neutron telescope."
India.
@misc{etde_8466419,
title = {Absolute measurement of /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14. 7 MeV using a neutron telescope}
author = {Sharma, D, Shahani, M G, Phadnis, U V, and Sadavarte, S K}
abstractNote = {The measurement of the /sup 56/Fe(n,p)/sup 56/Mn cross section at 14.7 MeV using the absolute standard neutron telescope developed at the Bhabha Atomic Research Centre is described. The neutron telescope was the basis of the recent international intercomparison of neutron flux performed under the auspices of the International Bureau of Weights and Measures and gave results with an accuracy of 3%. There is a discrepancy of about 10% in the recent absolute measurements of the /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV. The /sup 56/Mn activity of thin 99.9% pure iron foils obtained from the IAEA and irradiated on the front face of the telescope, at various distances from the target, was measured absolutely, using a 4..pi beta..-..gamma.. coincidence system. Corrections were applied for the time variation of the neutron flux on the foils activity. The recoil proton peak due to the 14.7 MeV neutrons hitting the polythene radiator had resolution of 12% at 12 cms from the target. The /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV is found to be (103 +- 3.5) mb.}
place = {India}
year = {1979}
month = {Jan}
}
title = {Absolute measurement of /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14. 7 MeV using a neutron telescope}
author = {Sharma, D, Shahani, M G, Phadnis, U V, and Sadavarte, S K}
abstractNote = {The measurement of the /sup 56/Fe(n,p)/sup 56/Mn cross section at 14.7 MeV using the absolute standard neutron telescope developed at the Bhabha Atomic Research Centre is described. The neutron telescope was the basis of the recent international intercomparison of neutron flux performed under the auspices of the International Bureau of Weights and Measures and gave results with an accuracy of 3%. There is a discrepancy of about 10% in the recent absolute measurements of the /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV. The /sup 56/Mn activity of thin 99.9% pure iron foils obtained from the IAEA and irradiated on the front face of the telescope, at various distances from the target, was measured absolutely, using a 4..pi beta..-..gamma.. coincidence system. Corrections were applied for the time variation of the neutron flux on the foils activity. The recoil proton peak due to the 14.7 MeV neutrons hitting the polythene radiator had resolution of 12% at 12 cms from the target. The /sup 56/Fe(n,p)/sup 56/Mn cross-section at 14.7 MeV is found to be (103 +- 3.5) mb.}
place = {India}
year = {1979}
month = {Jan}
}