Speaker
Dr
Levan Glonti
(Joint Institute for Nuclear Research, Dubna)
Description
We describe the prototype implemented design and assembly technology of the drift chamber for operation in the vacuum.
The main features of the proposed drift chamber are the following:
1. As single detector unit the thin-wall mylar drift tube with diameter of 10 mm, length of 2160 mm and Cu+Au plated is used. The tubes are produced by ultrasonic welding, using welding device and method developed at JINR.
2. The complete assembly of drift tubes with end plugs, anode wire and its supports takes place outside the chamber.
3. For precision installation of anode wires and tubes «self-centering» spacers and bushes are used.
4. Each of the assembled tubes is installed in the chamber, vacuum sealed with O-rings and stretched separately. Application of O-rings simplifies and reduces the cost of the chamber assembly and the failed tubes replacement.
5. Assembly of tubes and manufacturing of a load carrying structure of the chamber are made simultaneously and independently to reduce essentially total assembly time.
6. Full assembly of drift tubes outside the chamber with their subsequent installation in a prototype for vacuum and electric tests is carried out. Operating characteristics of drift tubes are measured.
7. The assembling technology of tubes outside the chamber is suitable for any shape chambers, but for the vacuum condition the round one is preferable. Chamber of such a design has been considered. Its advantages of operation in vacuum are shown.
Primary author
Dr
Levan Glonti
(Joint Institute for Nuclear Research, Dubna)
Co-authors
Mr
Alexej Piskun
(Joint Institute for Nuclear Research, Dubna)
Dr
Gennadi Alexeev
(oint Institute for Nuclear Research, Dubna)
Mr
Sergej Shkarovskiy
(Joint Institute for Nuclear Research, Dubna)
Mr
Valeri Rodionov
(Joint Institute for Nuclear Research, Dubna)
Mr
Valeriy Tokmenin
(Joint Institute for Nuclear Research, Dubna)
Mr
Vladimir Malyshev
(Joint Institute for Nuclear Research, Dubna)
Dr
Yurij Potrebenikov
(piskun@jinr.ru Joint Institute for Nuclear Research, Dubna)
