ASTRO-H SXS

28 2 5

1

2016 2 X ASTRO-H XSoft X-ray Spectrometer (SXS) SXS 50 mK

XK 0.3-12.0 keV

5 eV X CCD

80(Pulse Shape Processor: PSP) PSP

PSP

GPS(Time Indicator: TI) PSP

UT XX PSP

X χ2

PSP

PSP80 PSP

2

1 X ASTRO-H 6

1.1 X X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 X ASTRO-H . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 X SXS 8

2.1 X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 SXS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 MXS . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.2.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3 SXS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 PSP 14

3.1 PSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 PSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.1 MIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.2 SpaceCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.2.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.1 MIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.2 SpaceCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 27

4.1 SpaceWire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2.1 Time Indicator: TI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2.2 Local Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5 31

5.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3

5.4.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6 37

6.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.4.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.4.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7 40

4

2.1 SXS PSP Description Document . . . . . . . . . . . . . . 15

3.1 PSP PSP Description Document . . . . . . . . . . . . . . 16

3.2 SXS PSP (x SSR CR

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3 XBox-PSP PSP Description Document . . . . . . . . . . . . . 20

3.4 derivShift derivHalfLen PSP Description Document . . . . . 23

4.1 SXS LocalTime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 [µs] . . . . . . . . . . . . . . . . . . . . . . 36

5.4 σPSP [µs] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5

1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 ASTRO-H (C) JAXA . . . . . . . . . . . . . . . . . 8

2.1 X . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 SXS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.6 . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 anti-co . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8 Dewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9 Dewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 PSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.2 MIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 SpaceCard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.4 LVDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 PSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.6 XBox MIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.7 sample 1 PSP Description Document . . . . . . . . . . . . . 21

3.8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.9 derivative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.10 . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.11 (C) JAXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.1 SpaceWire . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 ASTRO-H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.1 . . . . . . . . . . . . . . . . . . . . . 31

5.2 SXS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.5 SXS . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.6 . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.8 SXS (pixel=30) . . . . . . . . . . . . . . . . . . . . . 35

5.9 SXS . . . . . . . . . . . . . . . . . . . . . . 35

5.10 (pixel=30) . . . . . . . . . . . . . . . . . . . . . 35

5.11 . . . . . . . . . . . . . . . . . . . . . . 35

5.12 (pixel=22) . . . . . . . . . . . . . . . . . . . . . . 36

6

5.13 . . . . . . . . . . . . . . . . . . . . . . . . 36

6.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.3 2000 < derivmax < 3500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.4 3500 < derivmax < 5000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.5 5000 < derivmax < 8000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.1 SXS pixel1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.2 SXS pixel3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.3 SXS pixel1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.4 SXS pixel6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.5 SXS pixel27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.6 SXS pixel29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.7 SXS pixel30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.8 SXS pixel31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.9 SXS pixel32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.10 pixel1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.11 pixel3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.12 pixel5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.13 pixel6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.14 pixel27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.15 pixel29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.16 pixel30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.17 pixel31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.18 pixel32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.19 pixel9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.20 pixel11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.21 pixel14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.22 pixel19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.23 pixel20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.24 pixel21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.25 pixel22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.26 pixel23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.27 pixel24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7

1 X ASTRO-H

1.1 X X

X

X

3 (

1.1)

1.1:

X 10−10 m

1 1 X

1 1

X

X 1962

X

X

2002

5 X

ASTRO-H

8

1.2 X ASTRO-H

1.2.1

ASTRO-H 2016 2 JAXA

14 m 2.5 t

X X

1.2.2

ASTRO-H

SXS

SXS X (SXT-S) X X

SXS

SXS PSP

SpaceWire

X SXI

SXI SXT-I SXT-S 0..4 12.0 keV X X

CCD CCD 38 38 CCD

200µm

−120SXI XIS

X HXI

HXT 5-80 keV X 2 HXT

X HXI 5-80 keV X X

Si 4 CdTe 1

BGO

SGD

SGD 10-600 keV

2 32 Si 8 CdTe

60 keV

Si 60 keV Si

CdTe SGD HXI BGO

1.2 ASTRO-H

9

1 SXT 2 HXT 3 SXI 4 HXI 5 SXS 6 SGD

SXS

1.2: ASTRO-H (C) JAXA

2 X SXS

SXS JAXA

NASA/GSFC SRON

SXS 2.3 X

SXS

2.1 X

X

SXS 50 mK

X CCD

20 eV X

10−6 eV

SXS 6 keV 5 eV

X

10

2.1.1

X 2.1 X

2.1: X

2.1.2

X 2.2 X E

C X ∆T

∆T =E

C(1)

Cd∆T

dt= −G∆T (2)

T τ0

τ0 =C

G(3)

X 1 ms

X τ0

2.1.3

X 1 kBT X

ϵ = kBT (4)

11

2.2:

X C U

U = CT (5)

N

N =U

ϵ=

C

kB(6)

√N√

N

∆U = ϵ√N =

√kBT 2C (7)

ξ( 1)

FWHM

∆E = −2.35ξ√kBT 2C (8)

C T

C T 3 8

∆E T52 (9)

2.2 SXS

SXS 2.3 SXS MXS

50 mK

X-ray amplifier box XBox

A/D Pulse Shape Processor PSP PSP

12

2.3: SXS

2.2.1 MXS

SXS X 10 ms

SXS

X 6

X (Modulated X-ray Source:MXS

LED

LED X

Cu X

2.2.2

X

X NASA/ GSFC

SXS HgTe Cd

HgTe 1/4

SXS X 814 µm 6 6 36

36 5 mm

( 2.5 No.12) 55Fe

2.4 2.5

2.6

X (anti-coincidence) anti-co

13

2.4:

2.5:2.6:

14

10 mm 500 µm X

anti-co 2.7

2.7: anti-co

2.2.3

SXS Dewer Dewer 1.3 m

1 m 6 Dewer

140 K 100 K 30 K 4.5 K 1.2 K 50 mK

ASTRO-H 290 K Dewer 30 K

2 2ST 2 2 50

1 100 4.5 K

2ST2 4 4HeJT 1 1.2 K

LHe 4HeJT

1

2 50 mK

Dewer 2.8 2.9

2.2.4

X-ray amplifier Box (XBox)

XBox NASA/GSFC

PSP

XBox XBox-A XBox-B

18

Pulse Shape Processor (PSP)

PSP ISAS/JAXA

SXS XBox

XBox

X

15

2.8: Dewer

2.9: Dewer

PSP

PSP

2.3 SXS

SXS 2.1 SXS

3 PSP

3.1 PSP

SXS PSP 3.1

3.2 SXS PSP

3.2 PSP

3.1 PSP PSP 250×350×91.3 mm 4.011 kgXBox PSP-A PSP-B

MIO ×1 SpaceCard ×2X 36 No.0-17 PSP-A No.18-35 PSP-B

1 ADC sample2

3 Time Code4

16

2.1: SXS PSP Description Document

SSR-01 Energy resolution in FWHM (eV) 7 4

SSR-02 Energy range (keV) 0.3-12.0 0.1-16.0

SSR-03 Residual background (s−1 keV−1) 1.5× 10−3 1.5× 10−3

SSR-04 Field of view (arcmin2) 2.9× 2.9 2.9× 2.9SSR-05 Detector array 6× 6 6× 6SSR-06 Angular resolution in HPD (arcmin) 1.7 1.3

SSR-07 Effective area at 1 keV (cm2) 160 160

Effective area at 6 keV (cm2) 210 210

SSR-08 Lifetime (yr) 3 5

SSR-09 Energy scale accuracy (eV) 2 1

Energy resolution accuracy (eV) 2 1

SSR-10 Count rate par array (s−1) >150 >150

Count rate per pixel (s−1) >20 >20

SSR-11 Absolute time-assignment accuracy (ms) 10 0.08

Time-assignment resolution (ms) 0.08 0.08

3.2.1 MIO

3.2 MIO User-FPGA SpW-FPGA

SDRAM (64MB) MIO 20 MH

2 Base clock(5MHz), Sampling clock(15.625kHz)

MIO MIO

MIO XBox SpW-FPGA

SpaceCard CPU PSP XBox

CPU

3.2.2 SpaceCard

3.3 SpaceCard SpaceCard CPU SpW-FPGA

SDRAM SRAM EEPROM LVDS

MIO SpaceWire Rooter SRAM (4MB)

EEPROM (2MB) SpaceCard 1 MIO

2 MIO 18

9 pixel12 SpaceCard-A1

17

3.1: PSP PSP Description Document

CR-P01 0.3-12.0 keVCR-P02 12.0 keV (

16.0 keV)

CR-P03 5×(rms noise1 )CR-P04 5 msCR-P05 2 ms 30

CR-P06 High-Resolution (HR), Medium-Resolution (MR),Low-Resolution (LR) primary, secondary

CR-P07 HR 0.5 eV

CR-P08 MR HR1 eV (FWHM)

CR-P09 LR HR 10

CR-P10 150 s−1array−1

CR-P11 20 s−1pixel−1

CR-P12 2 dead time2

CR-P13 1

CR-P15 1 ms 3

CR-P16 80 µs 4

CR-P17 XBox-A XBox-B 1 µs

18

3.2: SXS PSP (x SSR CR )

CR Description Sub-system requirements (SSR)

01 02 03 04 05 06 07 08 09 10 11

P-01 Energy range x

P-02 Dynamic range x x

P-03 Detection threshold x x x x

P-04 Duplicated pulse (5 ms) x x x

P-05 Duplicated pulse (2ms) x x x

P-06 Grading x

P-07 HR resolution x x

P-08 MR resolution x x

P-09 LR resolution

P-10 Array max rate x

P-11 Pixel max rate x

P-12 Pixel dead time x x

P-13 Live time-accuracy

P-14 Anti-co dead time x

P-15 Absolute timing x

P-16 Relative timing x

P-17 Clock sync

19

3.1: PSP

3.2: MIO

3.2.3

ASTRO-H PSP XBox

Low Voltage Differential Signaling (LVDS)

LVDS 3.4 2

0.3 V

LVDS 2

2 XOR

LVDS SpaceWire SpaceWire

20

3.3: SpaceCard

3.4: LVDS

3.2.4

MIO 20 MHz

PSP 5 MHz Base clock 12.5

kHz(15.625 kHz) Sampling clock Sampling clock Base clock

12.5 kHz 3.5

3.5: PSP

21

3.2.5

3.6 XBox MIO 3.3 PSP

XBox PSP

HK) PSP XBox

SpaceCard XBox MIO

3.6: XBox MIO

3.3: XBox-PSP PSP Description Document

XBox PSP

TLM CLK XBox

SCI ENA SCI DAT

SCI DAT

HK ENA HK DAT

HK DAT

PSP XBox

BASE CLK MIO Base clock

SMP CLK MIO Sampling clock

CMD ENA CMD DAT

CMD DAT XBox

MIO-A MIO-B

SYNC BASE A2B(B2A) MIO Base clock

SYNC SMP A2B(B2A) MIO Sampling clock

22

3.3

3.3.1 MIO

MIO User-FPGA MIO SpaceCard

PSP 1 2 SpaceCard

MIO XBox BASE CLK

SMP CLK XBox Base Clock XBox TLM CLK,

SCI ENA, SCI DAT sample MIO

sample anti-co

400 bit

312bit SCI ENA sample

sample 312 bit 18 ( 16 bit) anti-co 1

(16 bit) sample sciRecvCnt(8 bit) 3

88 bit 0 spare bit sample

3.7

sample sample

sciLenErrCnt sample 312bit

sciCntErrCnt sciRecvCnt +1

sampleErr 1

sample anti-co

16 bit 14 bit 15 bit spare bit 16 bit

odd parity 14 bit ADC sample

spare bit 0 odd parity ADC sample 1

odd parity

anti-co demultiplex

demultiplex ADC

3.7: sample 1 PSP Description Document

sample -8192 8191 14 bit

23

pxClipCnt

cannel error

channelErr 1

parityErrCnt 18pixel 1anti-co parity

pxAcdSample pxDelayBuf anti-co

acDelayBuf 1536 bit

derivative

ADC sample derivative SXS

1 ms derivative

derivLong(i) =derivHalfLen−1∑

i′=0

pxAdcSample(i+ i′)

−−1∑

i′=−derivHalfLenpxAdcSample(i+ i′)

= derivLong(i− 1) + pxAdcSample(i+ derivHalfLen− 1)−2pxAdcSample(i− 1) + pxAdcSample(i− derivHalfLen− 1) (10)

derivative(i) =derivLong(i) + 2derivShift−1

2derivShift(11)

derivHalfLen derivative 0 31

( 8) derivHalfLen=0 derivHalfLen=32 derivLong

pxAdcSample(i) (derivHalfLen-1) +1 de-

rivHalfLen -1 derivLong

20 bit derivative derivative derivLong 2derivShift−1

16 bit derivShift derivHalfLen 3.4

pxAdcSample(i) derivative Wave Form Ring Buffer (WFRB)

1 MB

WFRB derivative User-FPGA

6 INIT, STDBY, READY, ARMED,

FALL, PEAKFIND 3.8

INIT, STDBY: INIT INIT STDBY

24

3.4: derivShift derivHalfLen PSP Description DocumentderivShift derivHalfLen

0 1 ≤ derivHalfLen ≤ 21 3 ≤ derivHalfLen ≤ 42 5 ≤ derivHalfLen ≤ 83 9 ≤ derivHalfLen ≤ 164 17 ≤ derivHalfLen ≤ 32

READY: derivative pxPulseThres

( 12)

LO RES PH loResBase TRIG LP

derivative ≥ pxPulseThres (12)

ARMED: READY derivative

( 13) derivPre

derivative pxAdcSample derivative

pxAdcSampleMax derivativeMax

derivative < derivPre (13)

FALL: derivative pxFallEndThres

( 14) pxAdcSampleMax derivativeMax

derivative < pxFallEndThres (14)

derivative

quick double pxQuick-

DoubleThres quickDouble ( 15)

derivative− derivPre ≤ pxQuickDoubleThres (15)

PEAKFIND: 14 pxAdcSampleMax

derivativeMax

16

PEAKFIND sample

pxAdcSampleMax sample

pxPFStateCnt ≥ pxPFStateCntMax (16)

25

3.8:

PEAKFIND LO RES PH READY

loResBase derivativeMax ( 17)

LO RES PH = derivMax− loResBase (17)

LO RES PH 0 derivativeMax(16 bit), quick-

Double(1 bit), LO RES PH(14 bit), TRIG LP(24 bit) SDRAM

READY

3.3.2 SpaceCard

SpaceCard CPU SpaceCard MIO

User-FPGA CPU

ADC sample derivative

adcSamplesub(i) = adcSample(i)−N∑

n=1

lowResPHnlowResPHavg

adcSampleavg(i−∆in) (18)

derivativesub(i) = derivative(i)−N∑

n=1

derivMaxnderivMaxavg

derivativeavg(i−∆in) (19)

26

n i sub

avg ∆in n time shift time shift

derivMax

derivativesub(i) pxPulseThres ( 20)

derivativesub > pxPulseThres (20)

3.9: derivative3.10:

CPU

2 High Resolution

HR), Meddium Resolution MR), Low Resolution LR) 3 HR

874ADC sample

MR 219ADC sample LR

2 primary(p)

secondary(s) 2 2

Hp, Mp, Ms, Lp, Ls 5

Base Line(BL)

High > Meddium > Low

primary > secondary High Meddium

Low

User-FPGA LO RES PH

3.11

S(ω) N(ω) S(ω)

D(ω) H

D(ω) = HS(ω) +N(ω) (21)

27

3.11: (C) JAXA

H χ2

χ2 ≡∑

ω

|D(ω)−HS(ω)|2

|N(ω)|2 (22)

H χ2 = 0 H

H =

∑ω

D(ω)S∗(ω)+D∗(ω)S(ω)2|N(ω)|2

∑ω

∣∣∣ S(ω)N(ω)∣∣∣2 (23)

∗ D(ω), S(ω) D(−ω) = D∗(ω), S(−ω) =S∗(ω)

D(ω)S∗(ω) = D(−ω)S∗(−ω) = D∗(ω)S(ω) (24)

28

H =

∑ω

D(ω)S∗(ω)|N(ω)|2

∑ω

∣∣∣ S(ω)N(ω)∣∣∣2

=

∑ω

D(ω)S(ω)

∣∣∣ S(ω)N(ω)∣∣∣2

∑ω

∣∣∣ S(ω)N(ω)∣∣∣2 (25)

25 H∣∣∣ S(ω)N(ω)

∣∣∣ D(ω)S(ω) F (ω)

F (t) ≡ S(ω)|N(ω)|21

∑ω

∣∣∣ S(ω)N(ω)∣∣∣2 (26)

F (ω)

H

H =∑

t

D(t)F (t) (27)

ADC sample −8 ≤ j ≤ 7PHA j

PHA(j) =∑

i

template(i)× adcSample(i+ j) (28)

j 3 1/16

PHApeak time vernier

PHApeak = PHA(j) +1

8

({PHA(j + 1)− PHA(j − 1)}2

2PHA(j)− PHA(j + 1)− PHA(j − 1)

)

(29)

time vernier =1

2

(PHA(j + 1)− PHA(j − 1)

2PHA(j)− PHA(j + 1)− PHA(j − 1)

)(30)

SpaceCard

S N S

N

3.12 3.17

3.15 3.17

4

4.1 SpaceWire

SpaceWire ASTRO-H LVDS

29

3.12: 3.13:

3.14: 3.15:

3.16: 3.17:

30

SpaceWire

2009

SpaceWire 4.1 SpaceWire

SpaceWire

4.1: SpaceWire

4.2

ASTRO-H GPS GPS Reciever(GPSR)

Satellite Management Unit(SMU) SMU Time Indicator(TI)

SpaceWire Rooter(SWR) GPSR

4.2

4.2.1 Time Indicator: TI

SMU TI TI 38bit 64Hz 1

6bit Time Code 32bit Uppeer 32bit TI U32TI

31

4.2: ASTRO-H

4.2.2 Local Time

TI 1/64s=15.625ms

TI

Local TIme TI

(HK)

LocalTime bi

4.1 PSP look up table

SMU

4.1: SXS LocalTimebit

HK 80 µs 32

Event 20 µs 16

4.3

2

32

TimeCode

TimeCode

10bit

5

5.1

PSP 3.1 CR-P16 80 µs

X

5.2

MXS X LED

LED PSP

PSP 3 LED

5.1 PSP

5.1:

1.

33

χ2

2.

fitting LED

PSP

5.3

5.1

5.1:[ms] [ms]

SXS 2015 5 19 78.125 15.875

2015 5 22 78.125 15.875

2015 6 26 62.5 5

5.4

5.4.1

χ2

χ2

χ2

?? 5.4 Offset χ2

χ2 Best Period

1µs 5.2 χ2

5.2:χ2peak

SXS 2.6× 105

1.2× 105

2.7× 106

34

5.2: SXS 5.3:

5.4:

35

5.4.2

?? ??

3 1 X

count = 1

5.8 5.13 2

1bin

1σ 5.4

5.5: SXS

5.6:

5.5

5.4 σrise

σ2rise = σ2PSP + σ

2LED + σ

2SpW (31)

36

5.7:

5.8: SXS

(pixel=30)

5.9: SXS

5.10:

(pixel=30)

5.11:

37

5.12:

(pixel=22)

5.13:

5.3: [µs]

SXS

124.2 104.0 111.4

σPSP: PSP σLED: LED σSpW: SpW

σLED 100 µs σSpWPSP Time Code < 2µs

2016 ) σPSP

σPSP =√σ2rise − σ2LED (32)

σLED = 100µs 5.4 σPSP PSP 80µs

5.4: σPSP [µs]

SXS

59.5 28.6 49.0

5.6

X

X

PSP 80µs

38

6

6.1

X

6.1 PSP

6.1:

6.2

1.

derivative derivmax derivmax

Cu

2.

LED-on

bin 62500

3. delay

39

6.2:

6.3

6.1 12 55

6.1:[ms] [ms] pixel

2015 6 26 62.5 5 not12

6.4

6.4.1

SXS 6.2 6.2

6.2:derivmax

2000 < derivmax< 3500

3500 < derivmax< 5000

5000 < derivmax< 8000

40

6.4.2

bin 50 3 6.3 6.5

6.3

6.3: 2000 < derivmax < 3500 6.4: 3500 < derivmax < 5000

6.5: 5000 < derivmax < 8000

1µs σ = 0 80µs

6.5

3

50

1µs

PSP 80µs

41

6.3:[µs]

16.0992

16.0992

19.0992

7

fitting SXS

1,3,5,6,27,29,30,31,32

9,11,14,19,20,21,22,23,24

7.1: SXS pixel1

42

7.2: SXS pixel3

7.3: SXS pixel1

7.4: SXS pixel6

43

7.5: SXS pixel27

7.6: SXS pixel29

7.7: SXS pixel30

44

7.8: SXS pixel31

7.9: SXS pixel32

45

7.10: pixel1

7.11: pixel3

46

7.12: pixel5

7.13: pixel6

7.14: pixel27

47

7.15: pixel29

7.16: pixel30

7.17: pixel31

48

7.18: pixel32

7.19: pixel9

49

7.20: pixel11

7.21: pixel14

7.22: pixel19

50

7.23: pixel20

7.24: pixel21

7.25: pixel22

51

7.26: pixel23

7.27: pixel24

52