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Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI 1 Roman Gernhäuser Physik-Department E12, Technische Universität München Design and expected performance The R 3 B CALIFA Endcap CALIFA Working Group USC-IEM-UVigo GSI-TUM EMMI-TUD Chalmers Lund CFNUL JINR - NRC
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Page 1: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

1

Roman Gernhäuser

Physik-Department E12, Technische Universität München

Design and expected performance

The R3B CALIFA Endcap

CALIFA Working Group

USC-IEM-UVigo GSI-TUM

EMMI-TUD

Chalmers

Lund CFNUL JINR - NRC

Page 2: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

2

FAIR Facility for Anti-proton and Ion Research

SIS 100/300

S-FRS

R3B Outline:

• Introduction – R3B, CALIFA

– (p,2p) scattering as an example

• Phoswich detectors

• iPhos technique

• Expected performance

Page 3: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

3

R3B Reactions with Relativistic, Radioactive Beams

Wed 12:25 Roy Lemmon

Thu 11:55 Konstanze Boretzky

Thu 12:20 Anatoly Krivshich

Fri 11:10 Thomas Aumann

Page 4: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

4

Separationsenergie

)(* 121 AAp TTTTES

interner Impuls

211 ppppq AA

Nucleus excited fragment

A

A-1

free target proton

transfer momentum q

photon(s)

bound proton

q

p,n,d,t,...

evaporated

0

1

2

scattered protons: • back-to-back • opening angle 80°

Experiment Quasi-free scattering of exotic nuclei

in inverse kinematics

~700 AMeV

Requirements for CALIFA: • high dynamic range

100keV γ-rays – 700 AMeV charged particles • high efficiency • high granularity -> Doppler correction • particle identification

Page 5: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

5

CALIFA Barrel & Forward Endcap Array

700 AMeV

CALorimeter for In Flight detection

of g-rays and charged pArticles.

large solid angle

maximum efficiency

good resolution

easy access to target area

Page 6: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

6

The Combined Concept

QFS @ 700AMeV

length limit 22cm:

• geometrical space,

• light collection

• crystal properties

• efficiency and cost

IPHOS Intrinsic Phoswich Detectors

CEPA Califa Endcap Phoswich Array

eff.

15%

..

50%

DE -> E

separate reactions

Page 7: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

7

Segmentation and Doppler Broadening

EP = 400 AMeV EP = 700 AMeV

balance :

• doppler broadening

• rate /mult. capability

• intrinsic resolution

• calorimetric properties

• costs

• …..

CEPA IPHOS

Q(°) Q(°)

DQ

(°)

DQ

(°)

6%

2%

6%

2%

Page 8: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

8

CEPA - the Phoswich Part

8

Materials DE/E

(% at 662 keV)

Light yield (photons/

keV)

Decay time (ns)

λemision

LaBr3 2.9 63 16 380 nm

LaCl3 3.8 49 28 350 nm

• high rate capability

• best resolution

• high light yield

• depth information

• redundant DE for particles

2 scintillators

1 readout

optical comp.

Page 9: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

9

CEPA4: a bigger phoswich array

co

un

ts

total amplitude

(Ilo

ng-I

sh

ort)/

I lon

g 2 crystals with

different light yield &

different decay time

with common readout

VME CAEN Flash ADC (V1742)

to digitize the signals

40mm

LaBr3

60mm

LaCl3

Page 10: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

10

Reconstruct Proton Energy

CEPA4 (10cm)

Page 11: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

11

Particle identification in CsI(Tl) using digital pulse shape analysis – W. Skulski, M. Momayezi, NIM A 458, (2001) 759-771

IPHOS - CsI(Tl)

IPHOS Intrinsic Phoswich array

CEPA

Page 12: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

12

')'

exp(τ

t'-

τ

t'-

0Preamsf

ADC dttt

U

t

)]exp ( S)exp ( [F

MWD

Differentiation

)e xp (

1

sτ

t-

MWD

S

S F

RPID particle identification

M. Bendel, RG, EPJA 63, (2013)

Page 13: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

13

p(12C,X) p‘ @ 80 AMeV (LNS, Catania, Italy)

PID with CsI(Tl)

Nf / Ns depends on the ionization density?

Page 14: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

14

474 MeV Protons @ TRIUMF

150mm

Nf(a.u.)

Nre

d(a

.u.)

Beam

Page 15: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

15

Select Reactions

Protons @500MeV

50% reactions (25cm)

large background

low (p, 2p) efficiency

Nf(a.u.)

Nre

d(a

.u.)

Page 16: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

16

GSI FEBEX Readout

FEBEX3B:

• ADC, 16 ch, 14 Bit, 50 MHz

• Lattice ECP3 150 FPGA

• Timestamp synchronization

• Programmable via GOSIP

FAB_ Addon:

• Digital to Analog converter for

programmable baseline offset

• 25 MHz Bessel Nyquist filter

DAC

Filter Preamp ADC

FPGA

Page 17: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

17

Add On Boards

Digital Pulse Generator

• 210 MS/s, 14 bit DAC

• 2-pole low-pass filter

• 8 channel analog multiplexer

• CsI(Tl) pulse form with adjustable PID

• controlled via USB or GOSIP

• generates DAQ trigger and SC event Time (20 ns)

AD

C c

ha

nn

el

DAC

Filter Preamp ADC

FPGA

DRS4

FPGA

SCA Add-On Board

• Switched capacitor array

(analog ringbuffer)

• PSI DRS4:

Up to 5 GHz sampling

33 MHz read out rate

Page 18: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

18

Photopeak Efficiency

Endcap

Barrel

Califa Barrel + Endcap

coulex

Sum all detectors ▲ Photon reconstruction corrected for geo acceptance

Page 19: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

19

Energy Resolution

Endcap Barrel

= 0.82, projectile frame

perfect detectors

5% CsI(Tl) resolution

6% CsI(Tl) resolution @ 1MeV

Page 20: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

20

g-ray Spectroscopy

One Neutron Knockout from 23O

Page 21: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

21

18O(p,2p)17N

Page 22: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

22

Summary & Outlook

• Very good efficiency up to 15MeV

• 6% resolution above 1MeV

• iPhos method for reconstruction of high energy particles

proven

• CEPA Demonstator successfully tested

• TDR for the CALIFA Endcap handed in Nov. 2014

• start construction in 2015

• setup and commissioning 2017

• day-0 experiments in 2018

Page 23: The R B CALIFA Endcap · 2015. 3. 6. · 3 2.9 63 16 380 nm LaCl 3 3.8 49 28 350 nm • high rate capability • best resolution • high light yield • depth information • redundant

Roman Gernhäuser The CALIFA Endcap – NUSTAR week March 2015 – GSI

23

Thank you very much for your attention

CALIFA Working Group

USC-IEM-UVigo GSI-TUM

EMMI-TUD

Chalmers

Lund CFNUL JINR - NRC


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