Hamamatsu Photonics K.K. Electron Tube Division R7081-02 for ICECUBE 1. Delivery Record and Plan 2. Specification of R7081-02 3. Test Result at Hamamatsu 4. Homework at the meeting in May 5. Sampling Test Method 6. Handling for Rejection tubes Meeting with Dr.Yoshida/Univ of Chiba on June 9 2004 at Hamamatsu
R7081-02 for ICECUBE. Delivery Record and Plan Specification of R7081-02 Test Result at Hamamatsu Homework at the meeting in May Sampling Test Method Handling for Rejection tubes. Meeting with Dr.Yoshida/Univ of Chiba on June 9 2004 at Hamamatsu. Delivery Record and Plan (1). - PowerPoint PPT Presentation
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Hamamatsu Photonics K.K. Electron Tube Division
R7081-02 for ICECUBE
1. Delivery Record and Plan
2. Specification of R7081-02
3. Test Result at Hamamatsu
4. Homework at the meeting in May
5. Sampling Test Method
6. Handling for Rejection tubes
Meeting with Dr.Yoshida/Univ of Chibaon June 9 2004 at Hamamatsu
Hamamatsu Photonics K.K. Electron Tube Division
Delivery Record and Plan (1)
16 tubes were delivered to Univ of Chiba for sampling Test.
Order for 150 pcs in 2003 Transportation : AIR
Customers Jul. 2003 Aug. 2003
Univ of Wisconsin 72 pcs 18 pcs
DESY Zeuthen --- 32 pcs
Stockholms Univ --- 24 pcs
Univ of Chiba --- 4 pcs
Hamamatsu Photonics K.K. Electron Tube Division
Delivery Record and Plan (2)Order for 360 pcs in 2004 Transportation : AIR
Customers April 15 May 18 June 10 July 8
Univ of Wisconsin 96 pcs 48 pcs 96 pcs 24 pcs
DESY Zeuthen --- --- --- 48 pcs
Stockholms Univ --- 48 pcs --- ---
Univ of Chiba --- --- --- ---
Order for 360 pcs in 2004 Transportation : SAT
Customers Aug. 28 Sept. 25 Oct. 30
Univ of Wisconsin 120 pcs 120 pcs 120 pcs
Univ of Chiba --- --- ---
Hamamatsu Photonics K.K. Electron Tube Division
Delivery Record and Plan (3)
Hamamatsu expects continuous orders.
Delivery rate would be 72 - 120 pcs per month.
<Example>
From Nov.2004 to May 2005 : 500 pcs
From Jun.2005 to May 2006 : 1080 pcs
From Jun.2006 to May 2007 : 1080 pcs
From Jun.2007 to May 2008 : 1080 pcs
From Jun.2008 to May 2009 : 1080 pcs
Hamamatsu Photonics K.K. Electron Tube Division
Specification for R7081-02CHARACTERISTICS (at 25 deg C ) data is supplied with PMT
Min. Typ. Max. Unit Luminous (2856K) - 80 - uA/lm
Radiant at 420nm - 80 - mA/W
Blue (CS-5-58 filter) - 10.0 - uA/lm-b
Quantum efficiency at 390nm - 25 - %
Luminous (2856K) - 800 - A/lm
Radiant at 420nm - 8.0E+05 - A/W
Gain - 1.0E+07 - -
Supply Voltage for Gain of 1.0E+07 - 1500 V
Supply Voltage for Gain of 5.0E+07 - 1700 2000 V
Anode Dark Current (after 30min.storage in darkness) - 200 1000 nA
Dark Count (after dark condition for 15 hours) at +25 deg C note-1 7,000 15,000 s -1
Dark Count (after dark condition for 15 hours) at -40 deg C note-1 & 2 500 1000 s -1
Anode Pulse Rise Time - 4.2 - ns
Electron Transit Time - 60 - ns
Transit Time Spread (T.T.S.) note-1 3.2 - ns
Pre Pulsing (at 50p.e.) 10nsec-100nsec before Main pulse note-1 0.5 2 %
Late Pulsing 25nsec-100nsec before Main pulse note-1 1.5 5 %
After Pulsing 100nsec-16usec before Main pulse note-1 2.0 10 %
P/V (Peak to Valley Ratio) (at single p.e.) 2.0 2.5 note-1 -
at ±2% Deviation - 70 - mA
Anode Sensitivity
Time Response
Pulse Linearity
Parameter
Cathode Sensitivity
Hamamatsu Photonics K.K. Electron Tube Division
Voltage Divider for R7081-02
Electrodes K Dy1 F2 F1 F3 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P
Supply Voltage : 1500V, K : Cathode, Dy : Dynode, P : Anode, F : Focus
Table 1 : DIVIDER RATIO AND SUPPLY VOLTAGE
Anode Sensitivity, Gain and Pulse Linearity are specified at 1500V,other anode characteristics are specified at supply voltage forGain of 1.0E+07 with the divider shown in Table.1.
note-1 : LLD is set at 0.25 p.e. in the test. note-2 : Hamamatsu doesn't measure it, but guarantees the value.
Hamamatsu Photonics K.K. Electron Tube Division
Drawing of R7081-02
Hamamatsu Photonics K.K. Electron Tube Division
Test Result for 150 pcs in 2003R7081-02 Ebb for Gain of 1E+07
0
10
20
30
40
50
60
70
-1100 -1200 -1300 -1400 -1500 -1600 -1700
Ebb (V)
Nu
mb
er o
f Tu
bes
(p
cs)
Divider Ratio : 16.8-0.6-3.4-5-3.33-1.67-1-1.2-1.5-2.2-3-2.4
4 tubes, which shows larger dark counts, are selected.Dark counts at –10 deg C were checked.(TA0472 is out of SPEC at 25 deg C.)
at 25 deg C at -10 deg C
TA0412 7,800 730
TA0471 7,800 720
TA0472 20,000 1,220
TA0481 7,600 780
Dark Counts at Gain of 1E+07Serial No.
Hamamatsu Photonics K.K. Electron Tube Division
Homework at the meeting in May
<Hamamatsu>
To send Shock & Vibration level of PMT in the Package
To send Shock & Vibration level of PMT itself
To send Handling Procedure of PMT
(ICECUBE wants to know how to handle PMTs.)
To send Component List of PMT
(If PMT is broken, is it dangerous ??)
To send ISO related Document
Hamamatsu Photonics K.K. Electron Tube Division
Homework at the meeting in May<ICECUBE Group>
To check Radioactivity of the Glass
(Hamamatsu sent crushed glass in Jan.2003.)
To check transmittance of the Glass
(Hamamatsu sent glass plates in Jan.2003.)
To check Fluorescence of the Glass
(Hamamatsu sent glass blocks in Aug.2003.)
To send available Test data (for correlation)
To check appearance of all tubes
<= This is being done right now!!
Hamamatsu Photonics K.K. Electron Tube Division
Sampling Test Method
From next batch of 360 pcs order,10 % of tubes will be sent to Univ of Chiba.(12 pcs per month in Aug., Sept., Oct.)(Delivery would be in July, Aug, Sept..)(Transportation would be 4 times.)
Univ of Chiba will test them in 1 month.Test data is used for adjusting production