Author: Liu, Y.-H.
Paper Title Page
MOPWA042 The Leakage Current Induced by Stray Capacitance in the Pulse Magnet System 762
 
  • C.S. Chen, C.K. Chan, K.H. Hsu, Y.-H. Liu, C.S. Yang
    NSRRC, Hsinchu, Taiwan
  
  A huge amount of cur­rent must be pro­vided dur­ing the nom­i­nal op­er­a­tion of the pulse mag­net sys­tem in TPS (Tai­wan Pho­ton Source). It comes with all kinds of elec­tro­mag­netic noises, in­clud­ing ra­di­ated and con­ducted EMI (elec­tro­mag­netic in­ter­fer­ences). The pri­mary ob­ject of this ar­ti­cle is to clar­ify the paths of in­duced EMI, es­pe­cially by means of ca­pac­i­tance in­duc­tion. Fur­ther­more, some geo­met­ri­cal sug­ges­tions which had been tested are listed in this paper as the guide­lines of the pulse mag­net de­sign. Ac­cord­ing to the mea­sure­ment, proper dis­tance and sur­face area lead to suf­fi­cient in­su­la­tion and re­duce the leak­age cur­rent under the ex­pected value.  
 
MOPWA043 The HV Withstands Test for In Vacuum Booster Kicker 765
 
  • Y.-H. Liu, C.K. Chan, C.S. Chen, H.H. Chen, J.-R. Chen, K.H. Hsu, H.P. Hsueh, Y.T. Huang, C.S. Yang
    NSRRC, Hsinchu, Taiwan
  
  The max­i­mum dri­ving volt­age of TPS booster ex­trac­tion kicker is close to 30 kV, the HV in­su­la­tion should be care­fully no­ticed. A DC with­stand volt­age tester MUSASHI 3802 (Model: IP-701G) is used to test the DC break­down volt­age, which the max­i­mum dri­ving volt­age is 37 kV. The 10 mm gap be­tween coil and fer­rite is de­signed in order to in­crease HV break down volt­age. The safety break­down dis­tance be­tween HV coil and ground­ing plate was tested in air. Dif­fer­ent in­su­la­tion ma­te­r­ial with dif­fer­ent thick­ness was tested the break­down volt­age. Thicker than 10 mm ce­ramic plate could ef­fec­tively avoid the break­down oc­curred with 37 kV DC charg­ing. Thus HV with­stand volt­age will be higher in vac­uum cham­ber and the in­su­la­tion with HV will not be the prob­lem.  
 
THPFI068 Status of the Utility System Construction for the 3 GeV TPS Storage Ring 3454
 
  • J.-C. Chang, W.S. Chan, J.-R. Chen, Y.F. Chiu, Y.-C. Chung, C.W. Hsu, K.C. Kuo, Y.-C. Lin, C.Y. Liu, Y.-H. Liu, Z.-D. Tsai, T.-S. Ueng
    NSRRC, Hsinchu, Taiwan
  
  The con­struc­tion of the util­ity sys­tem for the 3.0 GeV Tai­wan Pho­ton Source (TPS) was started in the end of 2009. The util­ity build­ing for the TPS ring has been com­pleted in the end of 2012. Main util­ity equip­ment has been in­stalled in­side. The whole con­struc­tion of the util­ity sys­tem is sched­uled to be com­pleted in the mid of 2013. Total bud­get of this con­struc­tion is about four mil­lion dol­lars. This util­ity sys­tem pre­sented in this paper in­cludes the elec­tri­cal power, cool­ing water, air con­di­tion­ing, com­pressed air and fire con­trol sys­tems.