| Autor: |
Travis C, Dietz, Alan, Thompson, Mohamad, Al-Sheikhly, Marcin, Sterniczuk, David M, Bartels |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Radiat Phys Chem Oxf Engl 1993 |
| ISSN: |
0969-806X |
| Popis: |
We demonstrate a method for measuring the H(2) produced in water from the (10)B(n,α)(7)Li fission reaction. Low energy neutrons from the NIST Center for Neutron Research interact with borate-containing water in a temperature-controlled high pressure cell made from titanium. After exposure for one to several hours, the water is extracted and sparged with argon. H(2) entrained in the sparging gas is sampled with a small mass spectrometer. To determine the neutron exposure, a small amount of sodium is included in the borate solution. The water is collected and (24)Na activation is measured in a counting apparatus on the following day. The G-value for H(2) at room temperature is found to be (1.18 ± 0.10) molecules H(2)/100eV, in good agreement with previous estimates and recent modeling calculations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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