Speaker
Mr
Tripti Sekhar Datta
(Inter-University Accelerator Centre, New Delhi. India)
Description
Superconducting linac as a booster of 15UD Pelletron accelerator was partly commissioned with one linac module housing eight quarter wave bulk niobium cavities along with the superbuncher and rebuncher cryomodules. Subsequently two more linac cryomodules were added to have in total 24 cavities for acceleration. In addition to that, a new Linde helium refrigerator of capacity 750 W @ 4.2 K was installed in parallel to earlier CCI refrigerator. The new refrigerator was integrated with the earlier cryo- network system through a specially designed liquid helium distribution line without any valve box. The cooling philosophy with this new system is modified to have faster cool down rate in the critical zone (150 K- 70 K) to avoid Q disease. The helium gas pressure fluctuation in the cavities is reduced significantly to have stable RF locking. Full linac is being operated and beams with higher energy is being delivered to the users. Present paper will be high lighting the performance of new cryogenic system with respect to cool down rate, helium pressure fluctuation.etc.
Author
Mr
Tripti Sekhar Datta
(Inter-University Accelerator Centre, New Delhi. India)
Co-authors
Mr
Anup Choudhury
(Inter- University Accelerator Centre. New Delhi.India)
Mr
Jacob Chacko
(Inter- University Accelerator Centre. New Delhi.India)
Mr
Joby Antony
(Inter- University Accelerator Centre. New Delhi.India)
Mr
Manoj Kumar
(Inter- University Accelerator Centre. New Delhi.India)
Mr
Soumen Kar
(Inter- University Accelerator Centre. New Delhi.India)
Mr
Suresh Babu
(Inter- University Accelerator Centre. New Delhi.India)
