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X-ray ray Timing and Timing and Polarizati Polarization on mi missi ssion & & inst strumen mentation DONG Y Yongw ngwei Center fo r for r Parti rticle A Astroph trophysics Ins nstitute o of High Ene igh Energy P gy

  1. X-ray ray Timing and Timing and Polarizati Polarization on mi missi ssion & & inst strumen mentation DONG Y Yongw ngwei Center fo r for r Parti rticle A Astroph trophysics Ins nstitute o of High Ene igh Energy P gy Phys hysics, C Chine hinese Academy o y of Sc Scie iences

  2. XTP Scientific objectives  Scien Scientif ific ic Proble Problems ms  One ne Singu Singularity (B (BH), ),  Two St Stars (N (NS a S and nd m magne gnetar),  Thre ree Extre tremes ( (gra ravity ty, d , density ty, magneti tism)  The effecti The effective area area of of focusing focusing telesc telescope e has has been been confir confirme med to to be be the the breakt breakthro roug ugh capabil capabilit ity of of the the merged merged mission. mission.  The unique polariz The unique polarizat atio ion measurem measurement nt capabil capabilit ity has has been select been selected as as the the disting distinguis ishin ing feature feature. XTP . XTP will will open a open a new window new window using its powerfu using its powerful l capab capabil ilit ity of of polariza polarizatio ion observa n observatio ion. n.

  3. XTP payload configuration FL: 5.5m, FL: 5.5m, FoV FoV 16’,1 16’,1~30keV 4000cm 00cm 2 @2~6keV, 3 6keV, 300cm cm 2 @30 30keV keV FL: 4.5m, FoV FL: 4.5m, FoV 16’,0 16’,0.5~15keV 5000cm 00cm 2 @2~6keV 6keV 1°× °×1°,8 ,8-100 k 100 keV 250 2500 cm cm 2 3

  4. Summary of focal payload HFA LFA Quasi-Wolter I, nested,Multi-layer Quasi-Wolter I, nested Optics Mirror Shell substrate ： Al foil or Shell substrate ： Al foil or slumped glass slumped glass Focal length 5.5m 4.5m FOV 16’ 16’ HPD 2’ 2’ Energy range 1~30keV 0.5~15keV Effective 4000cm2@2~6keV 5000cm2@2~6keV Area 300cm2@30keV 5(3GEM-TPC+CZT, Units 10 2SDD/DEPFET) GEM-TPC(top)+CZT(focal point): SDD(or DEPFET): 10×10 Focal plane CZT(1mm*1mm*1mm) ： 16*16 pixels detector SPD(or DEPFET): 10×10 pixels, 1mm×1mm×0.5mm 1mm×1mm×0.5mm Energy CZT ： 600 eV@5.9 keV SDD/DEPFET ： resolution SDD/DEPFET ： 150eV@5.9keV 150eV@5.9keV

  5. X-ray opt optics  Nest sted ed q quasi si-wolte ter I r I type  Mirror l rror length th 1 100 m 0 mm  Thick cknes ess 0 s 0.2 mm  F/D /D ~ ~ 10  Inne nner: W W/Si; /Si; o outer I Ir  Slu Slumped G Gla lass/ A Al l foil il

  6. Fo Focal cal p plan ane d e det etect ectors  SDD/S SDD/SPD, D, or or DePFET DePFET(MP MPE) 100 100-pixel S pixel Si-PI PIN detec N detector ors. 7 7 SDD detec SDD detecto tors rs. FWHM HM=1.1keV@ =1.1keV@60keV 0keV at at room tem room temp. FWHM HM=160eV@ =160eV@5.9keV .9keV at at room temp. room temp.

  7. Polarization meas. using GEM-TPC  Cross Cross-se section on of of photoe photoelec ectric ic effect effect σ d ∝ φ 2 cos Ω d

  8. Transmissive design of GEM-TPC Focu Focuse sed beam beam Focal Focal plan plane @Tsinghu singhua U a Universit ersity

  9. High energy X-ray Collimating Array • The colli The collimat ator is r is made made using using Lithog Lithogra raphie - Galanofor noformung ung - Abformu Abformung (LIGA (LIGA) tech technique. Sketch map Sket map of of One HCA module One HCA module • Nick Nickel, hole size 170* hole size 170*170 μ m, , CZT detec CZT detecto tor is r is appli applied. • Grid Grid thick thickness 30 30 μ m, , • Heig Height 0.6mm 0.6mm

  10. Wide Field Camera  The WFC The WFC is is to to monitor monitor the the transie transient nt X-ray sources ray sources and and to localiz to localize them them with with an accurac an accuracy y of 5 arcmin. of 5 arcmin.  With the With the slew slew of of platform, platform, other instrum other instrumen ents will will be be guide guided to to make make follow follow-up o up observa vatio tions. ns.

  11. XTP ef effect ective ar ve area ea XTP a TP area ea an and d ba backg kgroun und

  12. Launcher  LM LM-3C, 2 , 2 booste boosters rs. . 12

  13. LM-3C launch capability  The launch capabil The launch capabilit ity of of the the LM LM-3C for 3C for LEO LEO mission mission into a 200 into a 200 km km circula circular orbit with an r orbit with an inclina inclinatio ion n of of 28.5 28.5 deg deg is is 9,100 kg. 9,100 kg.  550k 550km & & 28.5 deg 28.5 deg ~ ~ 6 6 t. t.  Altit Altitud ude easy easy to to be be changed changed. Inclina . Inclinatio ion angle n angle NOT! NOT! LM-3C launch capa. for GTO orbit 13

  14. XTP orbit  Basic Basic para para.  Alti titud ude 5 550 k 50 km  In Incl clination an angle 2 e 28 d deg egree ( (14 d deg egree as as bac ackup). It It depe pends ds o on th the parti rticle b backgrou round, d, p parti rticle fl flux, S SAA cro rossing ti time, e , earth rth occul ulati tion on, g gro round s d sta tati tion ons

  15. Miscellaneous  Mass: <320 Mass: <3200 kg kg (satell (satellite) e); ; ~1100 ~1100kg (payload (payload)  Power Power: 1300 : 1300W (platfo W (platform rm); ); 1000W( 1000W(pay ayloa oad)  Launc Launch time: h time: ~202 ~2020  Lifet Lifetime me: : 5 5 years (expect years (expected, 10 10 years) years)  XTP h TP has been s selected a d as a backg kgroun round p pro roject b t by th the St Strategic P Pio ioneer P Progr gram (SP (SPP) o on n Sp Space Sc Scie ience o of the he Chinese ese A Acad adem emy o of Scien ence ces. s.  X band data: X band data: rely satellit rely satellite or or interna internati tiona nal l collab collabor orat ation on (if the (if the inclina inclinatio ion n angle angle is too small) is too small)  Focal Focal plane plane detec detector ors & & collimat collimating ng detec detector ors Th Thanks! ks!

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