X-ray ray Timing and Timing and Polarizati Polarization on mi - - PowerPoint PPT Presentation

X-ray ray Timing and Timing and Polarizati Polarization

• n

mi missi ssion & & inst strumen mentation

DONG Y Yongw ngwei Center fo r for r Parti rticle A Astroph trophysics Ins nstitute o

• f High Ene

igh Energy P gy Phys hysics, C Chine hinese Academy o y of Sc Scie iences

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

• f 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

• f 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

• pen a new window

new window using its powerfu using its powerful l capab capabil ilit ity of

• f polariza

polarizatio ion observa n observatio ion. n.

XTP payload configuration

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FL: 4.5m, FL: 4.5m, FoV FoV 16’,0 16’,0.5~15keV 5000cm 00cm2@2~6keV 6keV FL: 5.5m, FL: 5.5m, FoV FoV 16’,1 16’,1~30keV 4000cm 00cm2@2~6keV, 3 6keV, 300cm cm2@30 30keV keV 1°× °×1°,8 ,8-100 k 100 keV 250 2500 cm cm2

Summary of focal payload

HFA LFA Optics Mirror Quasi-Wolter I, nested,Multi-layer Shell substrate ： Al foil

• r

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

 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

• uter I

Ir  Slu Slumped G Gla lass/ A Al l foil il

X-ray opt

• ptics

Fo Focal cal p plan ane d e det etect ectors

SDD/S SDD/SPD, D, or

• r DePFET

DePFET(MP MPE)

7 7 SDD detec SDD detecto tors rs. FWHM HM=160eV@ =160eV@5.9keV .9keV at at room temp. room temp. 100 100-pixel S pixel Si-PI PIN detec N detector

• rs.

FWHM HM=1.1keV@ =1.1keV@60keV 0keV at at room tem room temp.

Polarization meas. using GEM-TPC

Cross Cross-se section

• n of
• f photoe

photoelec ectric ic effect effect

φ σ

2

cos ∝ Ω d d

Transmissive design of GEM-TPC

@Tsinghu singhua U a Universit ersity Focal Focal plan plane Focu Focuse sed beam beam

High energy X-ray Collimating Array

Sket Sketch map map of

• f One HCA module

One HCA module CZT detec CZT detecto tor is r is appli applied.

• The colli

The collimat ator is r is made made using using Lithog Lithogra raphie - Galanofor noformung ung - Abformu Abformung (LIGA (LIGA) tech technique.

• Nick

Nickel, hole size 170* hole size 170*170μm, ,

• Grid

Grid thick thickness 30 30μm, ,

• Heig

Height 0.6mm 0.6mm

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.

• f 5 arcmin.

With the With the slew slew of

• f platform,

platform, other instrum

• ther instrumen

ents will will be be guide guided to to make make follow follow-up o up observa vatio tions. ns.

XTP a TP area ea an and d ba backg kgroun und

XTP ef effect ective ar ve area ea

Launcher

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

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LM-3C launch capability

The launch capabil The launch capabilit ity of

• f the

the LM LM-3C for 3C for LEO LEO mission mission into a into a 200 200 km km circula circular orbit with an r orbit with an inclina inclinatio ion n of

• f

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!

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LM-3C launch capa. for GTO orbit

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

• n 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

• n, g

gro round s d sta tati tion

• ns

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

• ad)

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

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n Sp Space Sc Scie ience o

• f the

he Chinese ese A Acad adem emy o

• f Scien

ence ces. s.

X band data: X band data: rely satellit rely satellite or

• r interna

internati tiona nal l collab collabor

• rat

ation

• n (if the

(if the inclina inclinatio ion n angle angle is too small) is too small) Focal Focal plane plane detec detector

• rs &

& collimat collimating ng detec detector

• rs

Th Thanks! ks!