Recent Progress in Recent Progress in Vacuum Photon Detectors - - PowerPoint PPT Presentation

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Recent Progress in Recent Progress in Vacuum Photon Detectors - - PowerPoint PPT Presentation

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Recent Progress in Recent Progress in Vacuum Photon Detectors Vacuum Photon Detectors from Hamamatsu from Hamamatsu at APP 2012 on Jul.27 7 2012 2012 at APP 2012 on Jul.2 Hamamatsu Photonics Electron Tube Division Yuji Yoshizawa

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SLIDE 1

Recent Progress in Recent Progress in Vacuum Photon Detectors Vacuum Photon Detectors from Hamamatsu from Hamamatsu

at APP 2012 on Jul.2 at APP 2012 on Jul.27 7 2012 2012

Electron Tube Division

Hamamatsu Photonics Electron Tube Division

Yuji Yoshizawa

1

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SLIDE 2

Europe European an and Russian MAP and Russian MAP

Mongolia EUROPE RUSSIA JAPAN China

Lake Baikal

Ulan-Ude Beijing Tokyo

3 hours flight from PEK to UUD Waiting time is much longer !!

FAR EAST

2

Moscow Heavy Rain in Beijing on 7/21 More than 500 flights were cancelled. 80,000 peoples had to stay there. I was one of them, but I finally came here.

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SLIDE 3

Where is Hamamatsu located ? Where is Hamamatsu located ?

SSD JAPAN Laboratories ETD

Hamamatsu City Population: 820K

HONDA, YAMAHA and SUZUKI are located in the same area.

3

Expansion MAP

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SLIDE 4

Established : Sept.29.1953 Net Sales : (FY 2011) Yen 100B ($1.25B / €1.0B) Employees : 4,000 (Group) (As of Sept.2011)

Solid Sate Division Solid Sate Division Systems Division Systems Division Laser Group Laser Group Research Research Laboratories Laboratories

Hamamatsu Photonics K.K. Hamamatsu Photonics K.K.

JAPAN Europe USA Southeast Asia

(Representatives) (Subsidiaries) (Subsidiaries) Electron Tube Division Electron Tube Division ¥80/$ ¥100/€

China

Subsidiary

4

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SLIDE 5

New Products (1) New Products (1)

R11920-100 / 1.5-inch PMT for Gamma-ray Telescope R11919 / 1.5-inch Fast PMT for HEP & Medical Instrument

5

R11780 / 12-inch PMT for Neutrino Experiment

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SLIDE 6

New Products (2) New Products (2)

R10467U / Fast HPD for Microscope R11265 / New Metal Package PMT for HEP & Medical Instrument 3-inch Metal Bulb PMTs for Dark Matter Experiment μ μ-PMT (micro PMT) for Biomedical

6

under development

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SLIDE 7

10 inch R7081

12 inch R11780

Φ253 mm

Larger effective area ratio

Φ305 mm

Round Round Shape Shape Mushroom Mushroom Shape Shape

Higher Pressure Higher Pressure-

  • resistance

resistance

Φ220 mm Φ280 mm

Comparison of Dimension between Comparison of Dimension between R11780 (12 R11780 (12” ”) and R7081 (10 ) and R7081 (10” ”) )

Diff.=33 mm Diff.=25 mm

7

Target: 10 atm Target: 10 atm

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SLIDE 8

Comparison of Characteristics Comparison of Characteristics

7,000 cps 10,000 cps Dark Counts 2.5（2.8）

3.0 P/V Ratio

2.9（3.4） ns

2.7 ns T.T.S. (FWHM)

1.0E+07 at 1500V 1.0E+07 at2000V GAIN LF/10-stage LF/10-stage Dynodes 300 mm 385 mm Tube Length 74.6%

84.3% Effective Area Ratio

220 mm min.

280 mm min. Effective Area

253 mm 305 mm Diameter

R7081 10-inch PMT R11780 12-inch PMT Items

8

( ) actual average value

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SLIDE 9

R11780 QE Transition 5 10 15 20 25 30 35 40 10 20 30 40 50 Serial Number QE at 380 nm [%]

High QE Trials Standard

Low QE was observed at the beginning of trial production. Improvement effort was made from Apr.2011. We called it High QE trials. As a result, QE becomes better.

R11780 QE Improvement R11780 QE Improvement

9

38.9%

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SLIDE 10

Samples Weight (g) 1 2.5 2.8 2.6 2.4 2.4 2.6 2.9 2.7 2.4 2.4 2.6 2.8 1675 2 2.3 2.7 2.6 2.5 2.4 2.1 2.2 2.4 2.6 2.7 2.7 2.7 1385 3 2.1 2.3 2.2 2.3 2.5 2.7 2.2 2.3 3.7 3.6 3.5 3.2 1605 4 2.8 2.1 2.3 2.7 1.8 2.1 1.67 1.5 2.7 2.9 3 2.8 1275 5 2.2 2 2.2 2.5 2.2 2.2 1.9 2 2.8 2.7 3 2.9 1370 Bulb thickness: less than 2.5 mm 6 2.6 2.7 2.5 2.2 2.4 2.4 2.7 3.3 3.9 3.5 3.3 3.6 1685 Bulb thickness: larger than 4.0 mm 7 2 2.2 2.4 2.3 2.2 2.2 2 2.8 3.5 3.3 3.1 3.9 1540 8 2.2 2 2.1 2.1 2.1 2.1 1.9 2.1 3.3 2.8 3 3.2 1440 9 2.4 2.8 2.6 2.7 2.3 2.3 4 3.1 3.1 2.9 3.1 3.6 1715 10 2.4 2.4 2.4 2.4 2.4 2.4 2.7 2.4 3.3 3.6 3.6 3.4 1625 11 1.9 1.7 1.7 1.7 2.2 2.2 1.8 2 3.7 3.5 3.6 3.9 1495 12 2 2.1 2.2 2 2.2 2.2 2.6 2.4 2.5 2.5 2.4 2.5 1360 13 3 2.9 3.2 3 3.1 3.1 2.7 3.2 3.6 4.1 4 3.5 1770 14 2.4 2.2 2.6 2.2 2.4 2.4 1.9 1.7 3.5 3.2 2.9 3.6 1400 15 3.2 3.1 3.2 3.1 2.7 2.7 3.6 3.5 2.9 2.7 3 3.1 1650 16 2.2 2 2.5 2.2 2.2 2.2 2.5 2.5 3.7 3.7 3.7 3.9 1610 17 2.2 1.86 1.7 1.9 3.1 2.3 1.8 2.6 3.3 4.2 3.7 3.3 1630 18 2.9 2.7 2.6 3 3.4 4.1 2.8 2.4 3.8 3.4 3.8 3.8 1835 19 2.5 2.6 2.4 2.5 2.7 3.3 3.2 3.1 3.9 3.7 3.2 3.3 1755 20 2.4 2.7 2.3 2.3 2.2 1.8 2 2.2 3.8 3.5 3.5 3.6 1425 21 2.8 2.6 2.6 2.8 2.9 2.5 2.8 3 4.1 3.9 3.3 3.6 1725 22 2.1 2.6 2.6 2 2.8 2.2 2.5 2.9 3.2 3.2 3.2 3.8 1540 23 1.7 2.1 2.3 1.9 1.9 2.5 2.8 2.3 3.9 3.5 3.3 3.6 1530 24 2.7 2.7 2.3 2.6 2.5 2.4 2 2.5 4.1 4.2 4.2 4 1660 25 2.7 3 2.9 3 2.4 4.1 3.6 2.69 3.3 3.5 3.5 3.3 1830 26 2.5 2.5 2 2.1 2.6 2.4 1.7 1.8 4.1 3.8 4 3.8 1460 27 1.9 1.86 1.7 1.8 2.3 2.1 2.2 2.9 3.8 3.6 3.6 3.7 1520 28 3.7 3.1 2.5 3.2 3.1 3.1 3.3 2.9 2.7 3.3 3.3 2.9 1740 29 2.5 3 2.6 2.6 3.3 3.5 3.6 3.6 4 3.7 3.8 3.9 1880 30 2.5 2.7 2.2 2.3 3.4 3.4 3.9 3.9 4 4 4 3.7 1950 max 3.7 3.1 3.2 3.2 3.4 4.1 4 3.9 4.1 4.2 4.2 4 1950 min 1.7 1.7 1.7 1.7 1.8 1.8 1.67 1.5 2.4 2.4 2.4 2.5 1275 Ave 2.4 2.5 2.4 2.4 2.5 2.6 2.6 2.6 3.4 3.4 3.4 3.4 1603

Zone C Neck part Zone A 8-inch circle Zone B around Equator Zone A 8-inch circle Zone B Equator Zone C Neck part

Variation of Bulb Thickness Variation of Bulb Thickness

We found that bulb thickness was thinner than specification.

4 points/Zone were measured with Ultra Sound Probe.

10

Check List for 30 bulbs

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SLIDE 11

Variation of Bulb Thickness (new Vender) Variation of Bulb Thickness (new Vender)

It was confirmed that variation is smaller and thickness is thicker compared with those of current glass vender.

Current Glass vender (30 bulbs) New Glass vender (37 bulbs)

11

Samples Weight (g) 1 2.5 2.8 2.6 2.4 2.4 2.6 2.9 2.7 2.4 2.4 2.6 2.8 1675 2 2.3 2.7 2.6 2.5 2.4 2.1 2.2 2.4 2.6 2.7 2.7 2.7 1385 3 2.1 2.3 2.2 2.3 2.5 2.7 2.2 2.3 3.7 3.6 3.5 3.2 1605 4 2.8 2.1 2.3 2.7 1.8 2.1 1.67 1.5 2.7 2.9 3 2.8 1275 5 2.2 2 2.2 2.5 2.2 2.2 1.9 2 2.8 2.7 3 2.9 1370 6 2.6 2.7 2.5 2.2 2.4 2.4 2.7 3.3 3.9 3.5 3.3 3.6 1685 7 2 2.2 2.4 2.3 2.2 2.2 2 2.8 3.5 3.3 3.1 3.9 1540 8 2.2 2 2.1 2.1 2.1 2.1 1.9 2.1 3.3 2.8 3 3.2 1440 9 2.4 2.8 2.6 2.7 2.3 2.3 4 3.1 3.1 2.9 3.1 3.6 1715 10 2.4 2.4 2.4 2.4 2.4 2.4 2.7 2.4 3.3 3.6 3.6 3.4 1625 11 1.9 1.7 1.7 1.7 2.2 2.2 1.8 2 3.7 3.5 3.6 3.9 1495 12 2 2.1 2.2 2 2.2 2.2 2.6 2.4 2.5 2.5 2.4 2.5 1360 13 3 2.9 3.2 3 3.1 3.1 2.7 3.2 3.6 4.1 4 3.5 1770 14 2.4 2.2 2.6 2.2 2.4 2.4 1.9 1.7 3.5 3.2 2.9 3.6 1400 15 3.2 3.1 3.2 3.1 2.7 2.7 3.6 3.5 2.9 2.7 3 3.1 1650 16 2.2 2 2.5 2.2 2.2 2.2 2.5 2.5 3.7 3.7 3.7 3.9 1610 17 2.2 1.86 1.7 1.9 3.1 2.3 1.8 2.6 3.3 4.2 3.7 3.3 1630 18 2.9 2.7 2.6 3 3.4 4.1 2.8 2.4 3.8 3.4 3.8 3.8 1835 19 2.5 2.6 2.4 2.5 2.7 3.3 3.2 3.1 3.9 3.7 3.2 3.3 1755 20 2.4 2.7 2.3 2.3 2.2 1.8 2 2.2 3.8 3.5 3.5 3.6 1425 21 2.8 2.6 2.6 2.8 2.9 2.5 2.8 3 4.1 3.9 3.3 3.6 1725 22 2.1 2.6 2.6 2 2.8 2.2 2.5 2.9 3.2 3.2 3.2 3.8 1540 23 1.7 2.1 2.3 1.9 1.9 2.5 2.8 2.3 3.9 3.5 3.3 3.6 1530 24 2.7 2.7 2.3 2.6 2.5 2.4 2 2.5 4.1 4.2 4.2 4 1660 25 2.7 3 2.9 3 2.4 4.1 3.6 2.69 3.3 3.5 3.5 3.3 1830 26 2.5 2.5 2 2.1 2.6 2.4 1.7 1.8 4.1 3.8 4 3.8 1460 27 1.9 1.86 1.7 1.8 2.3 2.1 2.2 2.9 3.8 3.6 3.6 3.7 1520 28 3.7 3.1 2.5 3.2 3.1 3.1 3.3 2.9 2.7 3.3 3.3 2.9 1740 29 2.5 3 2.6 2.6 3.3 3.5 3.6 3.6 4 3.7 3.8 3.9 1880 30 2.5 2.7 2.2 2.3 3.4 3.4 3.9 3.9 4 4 4 3.7 1950 max 3.7 3.1 3.2 3.2 3.4 4.1 4 3.9 4.1 4.2 4.2 4 1950 min 1.7 1.7 1.7 1.7 1.8 1.8 1.67 1.5 2.4 2.4 2.4 2.5 1275 Ave 2.4 2.5 2.4 2.4 2.5 2.6 2.6 2.6 3.4 3.4 3.4 3.4 1603

Zone C Neck part Zone A 8-inch circle Zone B around Equator

Samples Weight (g) 1 3.2 3.2 3.8 3.2 3 3.1 3 3.1 2.9 3.3 2.9 3.2 1920 2 3.3 3.3 2.5 2.9 2.9 3.8 2.6 2.8 4.4 4.2 4.4 4.3 1940 3 3.5 3.5 3.1 3 2.3 2.5 2.4 3.2 4 4 3.9 4 1810 4 2.8 2.8 2.9 3.1 3.2 3.1 2.8 2.8 4.7 5.3 4.8 4.6 1990 5 2.6 2.8 2.5 2.7 2.5 2.5 2.4 2.5 4.5 4.3 4.2 4.3 1780 6 3 2.8 2.6 3.1 2.3 2.4 2.2 2.1 3.6 4.1 3.9 3.7 1720 7 3.2 3.3 3.2 3.1 2.6 2.6 2.6 2.6 4.5 4.9 5.2 4.7 1980 8 3.2 2.4 2.9 3.6 3.1 2.6 3.1 3.4 3.8 3.8 3.4 3.7 1910 9 2.5 2.7 2.6 2.3 2.5 2.6 2.5 2 3.4 3.5 3.7 3.3 1660 10 3 3.2 3.3 3.2 3.2 3.2 3.3 3.2 4.3 4.2 4.3 4.4 2140 11 3.2 2.9 3.1 3.2 3.5 2.8 3.1 3.1 4.5 4.3 3.8 4.2 2080 12 2.9 3.1 3.1 3.2 2.8 2.5 2.8 2.9 4.3 3.8 4 4.4 1840 13 2.5 2.5 2.7 2.9 3.1 3 2.9 3.3 4.2 4 3.8 4.1 1840 14 2.8 3.1 2.9 3.1 2.7 2.7 2.8 2.8 3.7 4 4.2 4 1860 15 2.9 3.3 3.2 3.2 3 2.6 2.8 2.9 3.3 3.2 3.1 3.2 1810 16 3.3 3.1 2.5 3.6 3.7 3 2.5 3.3 3.9 3.7 3.4 3.4 1840 17 3.3 3.2 3.4 3.4 2.6 2.4 2.6 2.7 4.4 4.4 4.1 3.4 1840 18 3.8 4 3.1 3.3 2.5 2.7 2.5 2.8 3 3.3 2.8 3.1 1840 19 2.7 2.6 3 3.1 2.5 2.6 2.6 2.7 4.2 4.4 4.1 4.3 1790 20 2.9 3.2 3.5 2.7 2.6 2.9 2.7 2.6 4.9 4.7 4.4 4.6 1980 21 2.5 2.7 3 3.3 2.5 2.4 2.6 3.2 4.1 3.9 3.8 4.1 1840 22 3.1 3.2 3.3 2.9 2.6 3 2.7 2.5 3.6 3.7 3.7 3.8 1810 23 3 2.9 3.5 3.5 2.7 2.5 2.9 3.1 3.5 3.8 3.7 3.6 1880 24 4 4.1 3.2 3.6 2.5 2.6 2.6 2.5 4.1 4.4 4.2 4 1920 25 3.4 3.7 3.6 3 2.7 2.8 2.8 2.6 4.1 3.9 4.1 4 1890 26 2.9 3.2 3.7 3.6 2.5 2.6 2.6 3.1 4.1 3.9 3.7 4.2 1820 27 3.5 3.5 3.2 3.4 3.1 2.9 2.8 3.2 4 3.9 3.7 3.7 1900 28 3 3.5 2.8 2.6 2.7 2.9 2.7 2.6 3.9 3.8 3.9 4 1790 29 3.4 2.6 2.7 3.3 2.9 2.6 2.8 2.9 4.7 4.3 4 3.6 1830 30 3.1 3.1 3.4 3.1 3 2.8 2.9 3 4 3.5 3.4 3.9 1840 31 2.8 2.9 3.7 3.9 3 3.3 3.1 3.1 3.8 3.8 3.7 3.7 1920 32 3.7 3.1 4 4.5 3 3 3.2 3.1 4 4 4.4 3.9 2120 33 2.6 2.7 2.5 2.5 2.6 3.2 2.5 2.5 3.4 3.6 3.7 3.5 1740 34 2.8 2.8 2.6 2.5 2.7 2.9 2.6 2.5 4 4 4.1 3.9 1780 35 3.1 3.2 4.2 3.3 3.3 2.9 3 2.9 3.6 3.1 3.5 3.6 1920 36 3.2 3.3 3.2 2.9 2.7 2.7 2.6 2.5 4 4.1 4.1 4.4 1900 37 2.5 2.9 2.6 2.6 2.5 2.5 2.6 2.5 3.5 3.6 3.9 3.6 1720 max 4 4.1 4.2 4.5 3.7 3.8 3.3 3.4 4.9 5.3 5.2 4.7 2140 min 2.5 2.4 2.5 2.3 2.3 2.4 2.2 2 2.9 3.1 2.8 3.1 1660 Ave 3.1 3.1 3.1 3.1 2.8 2.8 2.7 2.8 4.0 4.0 3.9 3.9 1870

Zone C Neck part Zone A 8-inch circle Zone B around Equator

Small Company Large Company First Trial

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SLIDE 12

R11920 R11920-

  • 100 / 1.5

100 / 1.5-

  • inch PMT

inch PMT

R11920-100

CC window

Gamma-ray Telescope Mirror PMT Camera

PMT Camera (Magic)

from CTA group

12

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SLIDE 13

Comparison of AP/ Comparison of AP/NOISE NOISE

AP/NOISE for R11920 & R9420

1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 4 8 12 16 20 24

Photoelectron [ p.e. ] Output Counts

PMT Voltage AP/Noise R9420 850V 0.20 % R11920 902V 0.013 % Gain = 5E+04 SBA type

13 AP/NOISE [%] = Count-A / Count-B x 100 Count-A : Output counts higher than 4 p.e. Count-B : Output counts higher than 1/3 p.e. (Count-B is adjusted to about 25k cps.)

A B

1/15

Single p.e. peak

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SLIDE 14

K-DY1 voltage and the divier ratio are important factors to determine the CE and TTS/Time Response of PMT/R11920. Monte Carlo Simulation Wavelength: 400 nm

Optimazation of Optimazation of Divider Ratio Divider Ratio

AP/NOISE : DR-1 is better than DR-2. CE : B is better than A.

DR-1-B was selected !!!

14

CE (%) TTS (ns) AP/NOISE Applied Voltage

300 A 92.8 1.6 100 100 350 B 94.6 1.5 105 104

400 C 95.5 1.4 110 108 300 D 96.0 1.7 114 99 400 E 99.0 1.6 125 108

1 2 Divider Ratio (DR)

V-2-2-1-1-1-1-2-1 V-1-2-1-1-1-1-2-1

Measurement K-DY1 Voltage (V) Simulation

WL=400nm, 30 mm in dia. Mark

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SLIDE 15

Wavelength Dependence Wavelength Dependence of

  • f CE/TTS

CE/TTS

Divider ratio: 350V-1-2-1-1-1-1-2-1

15

20 mm 25 mm 30 mm 20 mm 25 mm 30 mm 300 88.3 87.7 88.2 1.4 1.5 1.6 400 93.4 93.6 93.4 1.4 1.5 1.6 500 96.4 96.8 97.1 1.4 1.4 1.5 600 98.7 98.7 98.8 1.2 1.3 1.5 300 88.3 88.6 88.9 1.3 1.4 1.5 400 94.4 94.8

94.6

1.3 1.5

1.5

500 97.9 97.6 98.0 1.3 1.4 1.5 600 98.8 99.2 99.0 1.1 1.2 1.4 300 88.7 88.6 89.2 1.2 1.3 1.5 400 95.2 95.1 95.2 1.2 1.4 1.4 500 98.3 98.5 98.6 1.1 1.3 1.4 600 99.4 99.4 99.5 1.0 1.1 1.3 TTS:FWHM (ns) Wave- length (nm) CE (%)

1250 (90) 1000 (65) 850 (50)

Total Applied Voltage (Voltage/1R)

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SLIDE 16

Wavelength Dependence Wavelength Dependence of

  • f CE/TTS

CE/TTS

16 60 65 70 75 80 85 90 95 100 20 mm 25 mm 30 mm

Effective Area in diameter (mm) Collection Efficiency [CE] (%)

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0

T.T.S. (ns)

600 CE 500 CE 400 CE 300 CE 300 TTS 400 TTS 500 TTS 600 TTS

K-DY1=350V : Total=1000V

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SLIDE 17

Dr.Mirzoyan/MPI reported that there is light emission from dynode of R11920-100. We made 2 kinds of trial tubes with different shape of dynode shield and checked the light emission.

Optimazation of Optimazation of Dynode Shield Dynode Shield

17

Standard Backside (rotated) Plate Shield Cylindrical Shield Long Shield Cylindrical Shield Short Shield no shield

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SLIDE 18

R11920-100 Light Emission from Dynode

0.001 0.002 0.003 0.004 0.005 1.0E+03 1.0E+04 1.0E+05 1.0E+06 1.0E+07 1.0E+08

Output Counts (cps) Probability of Light Emission (%)

Standard Plate Shield Cylindrical Shield

Light Emission Light Emission from Dynode from Dynode

18

Plate Shield was selected !!

Applied Voltage: 1000V AP/NOISE(%) is normalized at 1.0E+04 output counts. increase due to time response

  • f readout

electronics

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SLIDE 19

QE Curves with TOP 10 Tubes QE Curves with TOP 10 Tubes

19

R11920-100 Quantum Efficiency TOP-10

5 10 15 20 25 30 35 40 45 200 300 400 500 600 700 800

Wavelength (nm) Quantum Efficiency (%)

Cherenkov Spectrum SPEC: 32% min. at peak

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SLIDE 20

R11919 R11919 / / 1 1. .5 5-

  • inch

inch FAST FAST PM PMT T

Transit Time Spread = around 2 Transit Time Spread = around 27 70 ps 0 ps

(R9420 = 550 ps, R11194 = 400 ps)

Gain = Gain = 1 1E+06 E+06 (Gain is adjustable by request) Cathode Blue Sensitivity = around 11 Cathode Blue Sensitivity = around 11

(SBA type could be available in future)

20

Fast Time Response with Acceleration electrode for TOF-PET and HEP experiments

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SLIDE 21

Comparison of PMT Structure Comparison of PMT Structure between Current Type and New Type between Current Type and New Type

Focusing Electrode Acceleration Electrode

New Type R11919 Current Type R9420

Dynodes

21

Expansion

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SLIDE 22

Fast Time Response PMT Series Fast Time Response PMT Series

R9779 (2”)

TTS: 250 ps Rise: 1.8 ns at 1500V

R11919 (1.5”)

TTS: 270 ps Rise: 1.7 ns at 1500V

R9800 (1”)

TTS: 270 ps Rise: 1.0 ns at 1300V

< Concept > Simple Structure For Low Cost and Mass Production

Applications: TOF-PET and HEP Experiments

22

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SLIDE 23

3 3-

  • inch Metal Bulb PMTs

inch Metal Bulb PMTs for Dark Matter Experiments for Dark Matter Experiments

Quartz Window with LT-Bialkali

< Prime Features > LT-Bialkali for Low Temp. High QE, LOW RI (100mBq) R11065 for Liq.Ar (-186℃) R11410 for Liq.Xe (-110℃)

Kovar Metal

3-inch Metal Bulb PMT (R11065 / R11410)

2 Phase Liq.Xe detector

23

Kovar Metal and Quartz window are used to reduce RI as much as possible.

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SLIDE 24

Difference of QE Curves Difference of QE Curves

R11065 & R11410 Spectral Response Characteristics

5 10 15 20 25 30 35 150 200 250 300 350 400 450 500 550 600 650 700 750

Wavelength [ nm ] Quantum Efficiency [ % ] R11065 Catalog R11410 Catalog

R11065 for Liq.Ar (420nm) R11410 for Liq.Xe (175nm) 175nm 420nm

Spectral response is tuned depending on its application.

Characteristics Box & Line 12-stage Gain: 5E+06 at 1500V Rise Time: 5.5 ns

24

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SLIDE 25

R11065 Spectral Response Characteristics

5 10 15 20 25 30 35 40

150 200 250 300 350 400 450 500 550 600 650 700 750

Wavelength [ nm ] Quantum Efficiency [ % ]

SampleA SampleB SampleC

Improvement of QE for R11065 Improvement of QE for R11065

High QE tube 38.0 % at 380 nm 35.3 % at 420 nm Typical QE

QE improvement with SBA technology

slide-26
SLIDE 26

Low Temperature Operation Low Temperature Operation

R11065 Cathode Current DC Linearity

  • 20
  • 15
  • 10
  • 5

5 10

1.E-11 1.E-10 1.E-09 1.E-08 1.E-07 1.E-06 1.E-05

CATHODE CURRENT [A] DEVIATION [%] 25

  • 60
  • 110
  • 150

Cathode resistivity of LT Bialkali is lower compared with STD Bialkali. 10 pA x 1E6 = 10 uA (Ik) (Gain) (Ip)

26

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SLIDE 27

Further RI Reduction Plan Further RI Reduction Plan

R11410-10

Ceramic Stem

R11410

Glass Stem Kovar Leads Estimated RI 16 mBq/PMT Estimated RI 75 mBq/PMT R11410-20(Cobalt free metal type) is also available.

Kovar metal contains 60Co, its RI is about 2 mBq/PMT. Cobalt free metal can reduce it to 0.4 mBq/PMT.

27

40K U Th 60Co Total 50 20 3 2 75 40K U Th 60Co Total 7 6 1 2 16

(mBq/PMT) (mBq/PMT)

slide-28
SLIDE 28

Metal Package PMTs with MCD Metal Package PMTs with MCD

Metal Channel Dynodes

Micro processing technology Prime Features Compact, Fast Time Response Position Sensitive Immunity to magnetic field <Cross-section>

Array of Linear Focused Dynode 1mm 1mm

R9880 (TO-8) R7600 (1” square)

28

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SLIDE 29

Comparison of Metal Package PMTs Comparison of Metal Package PMTs

29

Focusing Type Proximity Type Proximity Type 34 mm 23 mm

R8900 R7600 R11265

* CE values are based on our simulation data.

R8900 R7600 R11265

34 27 23 23.5 18 23 75 80 90 1.8 1.4 1.3 0.80 0.35 0.27 BA, SBA BA, SBA, UBA BA, SBA, UBA

Total Tubbe Length (mm) Effective Area (mm x mm) Collection Efficiency (%) * Rise Time (ns) Transit Time Spread (ns) Available Photocathode

New New

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SLIDE 30

Variation of Anode Types

4 channels M4 (2x2) 16 channels M16 (4x4) 64 channels M64 (8x8) Cross-Plate C12 (6+ 6) X Y Part# R7600 R8900 R11265 M4

○ ○

Under Develp.

M16

○ ○ ○

M64

○

  • ○

Cross Plate

  • ○
  • ※Cross Plate : Use the center of gravity method.

30

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SLIDE 31

R10467U / HPD with Fast Time Response R10467U / HPD with Fast Time Response

R10467U R10467U-

  • 06

06 (Bialkali : 6mm in dia.) (Bialkali : 6mm in dia.) R10467U R10467U-

  • 40

40 (GaAsP : 3mm in dia.) (GaAsP : 3mm in dia.) R10467U R10467U-

  • 50

50 (GaAs : 3mm in dia.) (GaAs : 3mm in dia.)

31 33 mm in diameter 32 mm in length

R10467U-06 (Assembly Type)

small APD SMA

GaAsP GaAs Bialkali

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SLIDE 32

R10467U R10467U-

  • 06 Time Response

06 Time Response

32

Rise：400 ps Fall：400 ps

Full:50ps 1mm:34ps 5mm:36ps

Applications: Microscope, HEP, Biomedical

Jitter of Light Source and Readout are included

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SLIDE 33

13mm 1 m m 2mm

Amplification Signal 3 Layers Glass Silicon Glass 3 Layers Glass Silicon Glass Anode Anode Cathode Cathode Prototype

Dimensional Outline of Micro Dimensional Outline of Micro-

  • PMT

PMT

33

The world The world’ ’s tiniest, thinnest, and lightest PMT ! s tiniest, thinnest, and lightest PMT !

MOVIE

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SLIDE 34

Product Release Plan for Micro Product Release Plan for Micro-

  • PMT

PMT

34

From Autumn 2012

Micro-PMT assembly with Bialkali Photocathode

This dimension might be changed.

Next Steps

Multi Alkali Photocathode Module with Compact High Voltage Power Supply Micro-PMT with Plastic Case PCB with Voltage Divider Anode Cable

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SLIDE 35

Summary Summary

Hamamatsu developed following products, which are available right now. 1) 12-inch PMT / R11780 2) 1.5-inch PMT / R11920-100 3) Fast 1.5-inch PMT / R11919 4) 3-inch Metal Bulb PMT / R11410 & R11065 5) New Metal Package PMT / R11265 6) HPD with Fast Time Response / R10467U 7) The Micro-PMT is still under developement. Its sample is available right now. Product release could be from Autumn 2012.

35

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SLIDE 36

Other Other Developmental Detectors Developmental Detectors

3-inch MA-HPD 8-inch HPD

These products are still under development. Please contact us if you are interested in some of them.

1-inch MCP-PMT

36

RICH/Belle upgrade TOP/Belle upgrade Water Tank Detector

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SLIDE 37

Thank you for your attention !! Thank you for your attention !!

www.hamamatsu.com

37

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SLIDE 38

Picture of ETD (bird Picture of ETD (bird’ ’s s-

  • eye view)

eye view)

Lamp Scintillator SD

PMT

X-ray MCP PMT

I mage Sensor Cafeteria Module General Sales, Module, General

PMT