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angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap ~1mm Possible interpretation: Flat signal part from homogeneous light distribution in cell Increasing signal in forward direction from direct coupling of light to wls- fibers ? ZOMBI-0 in air: blue LED

Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

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Page 1: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

angle to vertical / degree

sign

al s

tren

gth

/ A

DC

chan

nel

Z1 at 90 degr.

Z2 at -90 degr.

WLS-liquid:

LAB + 5% PMP

Illumination :

LED fiber, 2.7 Vair gap ~1mm

Possible interpretation:

Flat signal part from homogeneous light distribution in cell

Increasing signal in forward direction from direct coupling of light to wls-fibers ?

ZOMBI-0 in air:

blue LED

Page 2: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:si

gnal

str

engt

h /

AD

C ch

anne

l

angle to vertical / degree

405 nm

WLS-liquid:

LAB + 5% PMP

Illumination :

laser 405 nm, I = 2.7air gap ~ 2 cm

Possible interpretation:

Z1 at 90 degr.

Z2 at -90 degr.

Page 3: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:si

gnal

str

engt

h /

AD

C ch

anne

l

angle to vertical / degree

Z1 at 90 degr.

Z2 at -90 degr.

WLS-liquid:

LAB + 5% PMP

Illumination :

laser 370 nm, I = 0.0 ???plus add. attemuationair gap ~ 2 cm

Possible interpretation:370 nm

Page 4: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:

angle to vertical / degree

sign

al s

tren

gth

/ A

DC

chan

nel

WLS-liquid:

LAB + 5% PMP

Illumination :

flash lamp 310 nm, I = 5.5air gap ~2 cm

Possible interpretation:

If flash lamp works correctly,all light comes from wave length shifting

310 nm

Z1 at 90 degr.

Z2 at -90 degr.

Page 5: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

angle to vertical / degree

sign

al s

tren

gth

/ A

DC

chan

nel

ZOMBI-0 in air:

PMT-Z1 at +90 degree

310 nm370 nm405 nm

blue LED

Page 6: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:

310 nm370 nm405 nm

blue LED

PMT-Z2 at -90 degree

angle to vertical / degree

sign

al s

tren

gth

/ A

DC

chan

nel

Page 7: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:

PMT-Z2 at -90 degreenormalized

sign

al s

tren

gth

/ A

DC

chan

nel

angle to vertical / degree

310 nm370 nm405 nm

blue LED

Page 8: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:si

gnal

str

engt

h /

AD

C ch

anne

l

angle to vertical / degree angle to vertical / degree

370 nmPMT-Z2

at -90 degree

PMT-Z1 at +90 degree 370 nm

measurement 1measurement 2

Stability check 1

?

Page 9: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:

measurement 1measurement 2

PMT-Z2 at -90 degree

PMT-Z1 at +90 degree

angle to vertical / degree angle to vertical / degree

sign

al s

tren

gth

/ A

DC

chan

nel

blue LEDblue LED

Stability check 2

Page 10: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

PMT-Z1 at +90 degree

PMT-Z2 at -90 degree

angle to vertical / degree angle to vertical / degree

ZOMBI-0 in air and water:

blue LED

sign

al s

tren

gth

/ A

DC

chan

nel

blue LED

water airwater

air

Page 11: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

angle to vertical / degree angle to vertical / degree

all light m. 1 all light m. 2 only fiber light only liquid light

ZOMBI-0 in air:si

gnal

str

engt

h /

AD

C ch

anne

l

PMT-Z1 at +90 degree

PMT-Z2 at -90 degree

blue LED

Page 12: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

sign

al s

tren

gth

/ A

DC

chan

nel

angle to vertical / degree angle to vertical / degree

310 nm

all light only fiber light only liquid light

PMT-Z2 at -90 degree

PMT-Z1 at +90 degree

ZOMBI-0 in air:

Page 13: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

ZOMBI-0 in air:si

gnal

str

engt

h /

AD

C ch

anne

l

blue LED 310 nm

PMT-Z2

at -24.3 cmPMT-Z1

at +24.3 cm

distance to cell center / cm distance to cell center/cm

Page 14: Angle to vertical / degree signal strength / ADC channel Z1 at 90 degr. Z2 at -90 degr. WLS-liquid: LAB + 5% PMP Illumination : LED fiber, 2.7 V air gap

Working point for 310nm measurement: 5.5a.u.

SZOMBI-c / SbarePMT

0.02

sign

al s

tren

gth

/ A

DC

chan

nel

LED voltage / V

PMT-ZOMBI-1:

LED-fiber illuminates center of bare PMT

Working point for all LED measurements: 2.7 V

SZOMBI-c / SbarePMT

0.002

Working point for 405 nm measurement: 2.7 a.u.

SZOMBI-c / SbarePMT

0.03