Abstract
The Vivitron project, started in 1986 could allow in late 1989 a first test of the electrostatic generator at 10.7 MV. At the beginning of 1991, a maximum voltage of 17.6 MV could be reached. Unfortunately a first pollution occurring in May 1991, followed by a major accident in August 1991, resulting also in a pollution of the machine, stopped all test runs for about one year. Since April 1992 the measurements could be started again and maximum voltages between 21 and 22 MV were obtained several times. However damages of different elements occurred, mainly on the horizontal isolating boards. Installation of different types of spark gaps allowed to ensure a reliable operation for voltages between 16 and 19 MV with typically 3 sparks per day. Therefore the mounting of the acceleration tube has been decided in Jan.1993 with scheduled first beams at the end of 1993 at these voltages. This allows to cover nearly 90 pc of the first physic programs mainly linked by the use of Eurogam phase II which should be available at the VIVITRON at the beginning of 1994. Studies concerning these different problems are reviewed.
Citation Formats
None.
1991 and 1992 activity report; Rapport d`activite 1991 et 1992.
France: N. p.,
1993.
Web.
None.
1991 and 1992 activity report; Rapport d`activite 1991 et 1992.
France.
None.
1993.
"1991 and 1992 activity report; Rapport d`activite 1991 et 1992."
France.
@misc{etde_10127088,
title = {1991 and 1992 activity report; Rapport d`activite 1991 et 1992}
author = {None}
abstractNote = {The Vivitron project, started in 1986 could allow in late 1989 a first test of the electrostatic generator at 10.7 MV. At the beginning of 1991, a maximum voltage of 17.6 MV could be reached. Unfortunately a first pollution occurring in May 1991, followed by a major accident in August 1991, resulting also in a pollution of the machine, stopped all test runs for about one year. Since April 1992 the measurements could be started again and maximum voltages between 21 and 22 MV were obtained several times. However damages of different elements occurred, mainly on the horizontal isolating boards. Installation of different types of spark gaps allowed to ensure a reliable operation for voltages between 16 and 19 MV with typically 3 sparks per day. Therefore the mounting of the acceleration tube has been decided in Jan.1993 with scheduled first beams at the end of 1993 at these voltages. This allows to cover nearly 90 pc of the first physic programs mainly linked by the use of Eurogam phase II which should be available at the VIVITRON at the beginning of 1994. Studies concerning these different problems are reviewed.}
place = {France}
year = {1993}
month = {Feb}
}
title = {1991 and 1992 activity report; Rapport d`activite 1991 et 1992}
author = {None}
abstractNote = {The Vivitron project, started in 1986 could allow in late 1989 a first test of the electrostatic generator at 10.7 MV. At the beginning of 1991, a maximum voltage of 17.6 MV could be reached. Unfortunately a first pollution occurring in May 1991, followed by a major accident in August 1991, resulting also in a pollution of the machine, stopped all test runs for about one year. Since April 1992 the measurements could be started again and maximum voltages between 21 and 22 MV were obtained several times. However damages of different elements occurred, mainly on the horizontal isolating boards. Installation of different types of spark gaps allowed to ensure a reliable operation for voltages between 16 and 19 MV with typically 3 sparks per day. Therefore the mounting of the acceleration tube has been decided in Jan.1993 with scheduled first beams at the end of 1993 at these voltages. This allows to cover nearly 90 pc of the first physic programs mainly linked by the use of Eurogam phase II which should be available at the VIVITRON at the beginning of 1994. Studies concerning these different problems are reviewed.}
place = {France}
year = {1993}
month = {Feb}
}