Adhesion improvement of HIVIPP C targets on Au backings |
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Authors: | I. Sugai Y. TakedaH. Kawakami N. OhtaH. Makii H. Miyatake |
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Affiliation: | a High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan b Advanced Research and Development Division, Toyo Tanso Co. Ltd., 550-0011, Takeshima, 5-7-12, Nishiyodogawa, Oosaka, Japan c Japan Atomic Energy Agency, Shirane, 2-4 Shirakata, Tokaimura, Naka-gun, Ibaraki-ken 319-1195, Japan |
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Abstract: | Accurate measurement of the cross-section of the 12C(α, γ)16O reaction is very important in nuclear astrophysics. Enriched 12C targets prepared with the high energy vibrationl powder plating [HIVIPP] method for this purpose have been used successfully. Initially, however, the 12C deposits for studying this small cross-section partially peeled from their Au backings when irradiated with beam currents≥2 times the 7 μA pulsed α-beam used previously. This problem was solved when the amorphous 12C powders were converted to graphite by heat-treatment in a high-temperature furnace. We investigated powder heat treatments at temperatures of 2600-3500 °C to reveal, which conditions resulted in uniform and highly adhesive depositions on Au backings. |
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Keywords: | Enriched isotopic Carbon Carbon disk targets |
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