A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Hsiao, F. Z.

Paper Title Page
THPEA075 Installation and Commissioning of the 200m Flexible Cryogenic Transfer System 3843
 
  • M.-C. Lin, L.-H. Chang, M.H. Chang, L.J. Chen, W.-S. Chiou, F.-T. Chung, F. Z. Hsiao, Y.-H. Lin, C.H. Lo, H.H. Tsai, M.H. Tsai, Ch. Wang, T.-T. Yang, M.-S. Yeh, T.-C. Yu
    NSRRC, Hsinchu
  • M. Di Palma, S. Lange, H. Lehmann, K. Schippl
    NEXANS Deutschland Industries AG & Co. KG, Moenchengladbach
  
 

The Na­tion­al Syn­chrotron Ra­di­a­tion Re­search Cen­ter is con­struct­ing the Tai­wan Pho­ton Source (TPS), a 3-GeV syn­chro­ton fa­cil­i­ty. The su­per­con­duct­ing radio fre­quen­cy (SRF) cav­i­ty mod­ules are se­lect­ed as the ac­cel­er­at­ing cav­i­ties in the elec­tron stor­age ring. A test area for the SRF mod­ules is es­tab­lished in the RF lab­o­ra­to­ry, which in­cludes cryo­genic en­vi­ron­ment, RF trans­mit­ter, low level RF con­trol sys­tem, and ra­di­a­tion shield­ed space. The liq­uid he­li­um is trans­ferred from the cryo­genic plant in the ex­per­i­men­tal area of the Tai­wan Light Source (TLS), which is not only far from the RF lab­o­ra­to­ry but also char­ac­ter­ized by a com­pli­cat­ed route of 205 me­ters. The main con­cerns on the cryo­genic trans­fer are the in­stal­la­tion dif­fi­cul­ty, heat loss, two-phase flow, and pres­sure loss. In­stead of a mul­ti-chan­nel trans­fer line, which would re­quest a long in­stal­la­tion pe­ri­od on ra­di­a­tion-re­strict area, flex­i­ble cryo­genic trans­fer lines from Nex­ans were cho­sen. The in­stal­la­tion pe­ri­od was dra­mat­i­cal­ly re­duced to one week. With a test Dewar in the RF lab and valve boxes on both ends of the trans­fer lines, a long dis­tance cryo­genic trans­fer sys­tem was com­plet­ed and proved to work func­tion­al.

  
THPEA076 The Current Status of the Cryogenic System Design and Construction for TPS 3846
 
  • H.H. Tsai, S.-H. Chang, W.-S. Chiou, F. Z. Hsiao, H.C. Li, M.-C. Lin, T.F. Lin, C.P. Liu
    NSRRC, Hsinchu
  
 

The TPS is 3 GeV pho­ton source under con­struc­tion in Tai­wan. The elec­tron needs four su­per­con­duct­ing RF cav­i­ties to main­tain the en­er­gy. The con­struc­tion of a new re­frig­er­a­tion/liq­ue­fac­tion he­li­um plant is under way to sup­ply the liq­uid he­li­um for su­per­con­duct­ing RF cav­i­ties. This is the third year of the seven years pro­ject and part of the de­sign fea­tures and pa­ram­e­ters is dif­fer­ent from the pril­im­i­lary de­sign. This paper pre­sents the de­sign of the cryo­genic sys­tem, which is in­clud­ing the fea­tures of the new cryo­genic plant, the pres­sure drop of warm he­li­um pipeline, the dis­tri­bu­tion valve box and the mul­ti­chan­nel line. The de­sign of liq­uid ni­tro­gen sup­ply line and the phase sep­a­ra­tor will be also in­clud­ed.