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Title: Vacuum leak problem in low energy of pelletron
Authors: Gargari, Satinath
Chopra, S
Joshi, Rajan
Ojha, S
Sota, M
Barua, P
Patel, V
Prasad, J
Kumar, R
Singh, B
Panwar, N S
Singh, M P
Datta, S K
Kanjilal, D
Issue Date: Jan-2001
Publisher: NISCAIR-CSIR, India
Abstract: During unit wise conditioning of unit # 8, the vacuum started deteriorating inside the tube after a spark. The RGA reading was taken and it was found out that residual gas inside tube was sulphur hexafluoride. A leak was detected in second tube of unit number eight in between electrode 6 to 8. Leak was sealed with the sealant. Again leak check was done and no leak was found. The tank was closed and conditioning was started again. During the same unit number eight conditioning, leak developed again followed by a spark. So the damaged tube was replaced with a new accelerator tube. During the same installation time alignment of the machine was taken care. Again leak checking was done and the tube was baked properly. The tank was closed again and this particular unit was conditioned for about four days. The maximum voltage it has attained was 1.1MV.
Page(s): 78-80
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.39(01-02) [January-February 2001]

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