Difference: PhotomultiplierSER (1 vs. 15)

Revision 152018-07-31 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Code

Line: 42 to 42
 
6094 1.380 1625 10 ns/div 20 mV/div     PM6094_1625.png  
6094 1.380 1650 10 ns/div 20 mV/div     PM6094_1650.png  
Changed:
<
<
-- CristovaoDaCruzESilva - 2018-06-11
>
>
-- CristovaoDaCruzESilva - 2018-07-31
 
META FILEATTACHMENT attachment="PMSune_2150.png" attr="" comment="Single electron response for PM Sune @ 2150V" date="1528816350" name="PMSune_2150.png" path="PMSune_2150.png" size="10138" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PMSune_2198.png" attr="" comment="Single electron response for PM Sune @ 2198V" date="1528816681" name="PMSune_2198.png" path="PMSune_2198.png" size="9935" user="cbeiraod" version="1"

Revision 142018-07-31 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"
Added:
>
>

Code

All the code performing the data analysis can be found on the daquser account. The code was written in jupyter under SWAN (swan.cern.ch) using cernbox as the storage. All files were placed under the swan directory: ~/labdata/2018/lab11/PMTs/, in particular note the jupyter notebook called ProduceHistos.ipynb (Also the file ParseRaw.ipynb or the python version of this same file ParseRaw.py). The cernbox space corresponds to an eos mounted space which can easily be accessed from lxplus. The cernbox/swan home directory corresponds to the path: /eos/user/d/daquser. Consequently, the directory above can be accessed through: /eos/user/d/daquser/labdata/2018/lab11/PMTs/ and the jupyter notebook at /eos/user/d/daquser/labdata/2018/lab11/PMTs/ProduceHistos.ipynb. However, it is best to access the jupyter notebooks through SWAN or CERNBOX in order to adequately see the contents.

 

Measurements

Measurements of the Single Electron Response (SER) of the photomultipliers.

Line: 36 to 40
 
27821 1.460 2275 10 ns/div 20 mV/div 1 5.5 PM27821_2275.png  
1.460 2300 10 ns/div 20 mV/div 1 5.5 PM27821_2300.png  
6094 1.380 1625 10 ns/div 20 mV/div     PM6094_1625.png  
Changed:
<
<
         
>
>
6094 1.380 1650 10 ns/div 20 mV/div     PM6094_1650.png  
  -- CristovaoDaCruzESilva - 2018-06-11
Line: 64 to 68
 
META FILEATTACHMENT attachment="PM15697_2250.png" attr="" comment="Single electron response for PM 15697 @ 2250V" date="1529599037" name="PM15697_2250.png" path="PM15697_2250.png" size="10816" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM27821_2275.png" attr="" comment="Single electron response for PM 27821 @ 2275V" date="1529599071" name="PM27821_2275.png" path="PM27821_2275.png" size="10605" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM27821_2300.png" attr="" comment="Single electron response for PM 27821 @ 2300V" date="1529599095" name="PM27821_2300.png" path="PM27821_2300.png" size="10668" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM6094_1625.png" attr="" comment="Single electron response for PM 6094 @ 1625V" date="1533029219" name="PM6094_1625.png" path="PM6094_1625.png" size="10352" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM6094_1650.png" attr="" comment="Single electron response for PM 6094 @ 1650V" date="1533029250" name="PM6094_1650.png" path="PM6094_1650.png" size="10456" user="cbeiraod" version="1"

Revision 132018-06-22 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 57 to 57
 
META FILEATTACHMENT attachment="PM17208_2375.png" attr="" comment="Single electron response for PM 17208 @ 2375V" date="1529045536" name="PM17208_2375.png" path="PM17208_2375.png" size="10753" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM9050_2475.png" attr="" comment="Single electron response for PM 9050 @ 2475V" date="1529051366" name="PM9050_2475.png" path="PM9050_2475.png" size="10681" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM7469_2490.png" attr="" comment="Single electron response for PM 7469 @ 2490V" date="1529056273" name="PM7469_2490.png" path="PM7469_2490.png" size="10440" user="gmorello" version="1"
Changed:
<
<
META FILEATTACHMENT attachment="PM7405_2400.png" attr="" comment="Single electron response for PM7405 @ 2400" date="1529313213" name="PM7405_2400.png" path="PM7405_2400.png" size="10692" user="gmorello" version="1"
>
>
META FILEATTACHMENT attachment="PM7405_2400.png" attr="" comment="Single electron response for PM7405 @ 2400V" date="1529313213" name="PM7405_2400.png" path="PM7405_2400.png" size="10692" user="gmorello" version="1"
 
META FILEATTACHMENT attachment="PM8657_2490.png" attr="" comment="Single electron response for PM 8657 @ 2490V" date="1529596669" name="PM8657_2490.png" path="PM8657_2490.png" size="10669" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM11518_2300.png" attr="" comment="Single electron response for PM 11518 @ 2300V" date="1529596730" name="PM11518_2300.png" path="PM11518_2300.png" size="10555" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM11261_2300.png" attr="" comment="Single electron response for PM 11261 @ 2300V" date="1529596785" name="PM11261_2300.png" path="PM11261_2300.png" size="10421" user="gmorello" version="1"

Revision 122018-06-21 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 32 to 32
 
8657 1.480 2490 10 ns/div 20 mV/div 2.5 7 PM8657_2490.png  
11518 1.680 2300 10 ns/div 20 mV/div 3.5 8 PM11518_2300.png  
11261 1.600 2300 10 ns/div 20 mV/div 3.5 8 PM11261_2300.png  
Added:
>
>
15697 1.500 2250 10 ns/div 20 mV/div 2.5 6 PM15697_2250.png  
27821 1.460 2275 10 ns/div 20 mV/div 1 5.5 PM27821_2275.png  
1.460 2300 10 ns/div 20 mV/div 1 5.5 PM27821_2300.png  
6094 1.380 1625 10 ns/div 20 mV/div     PM6094_1625.png  
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 54 to 58
 
META FILEATTACHMENT attachment="PM9050_2475.png" attr="" comment="Single electron response for PM 9050 @ 2475V" date="1529051366" name="PM9050_2475.png" path="PM9050_2475.png" size="10681" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM7469_2490.png" attr="" comment="Single electron response for PM 7469 @ 2490V" date="1529056273" name="PM7469_2490.png" path="PM7469_2490.png" size="10440" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM7405_2400.png" attr="" comment="Single electron response for PM7405 @ 2400" date="1529313213" name="PM7405_2400.png" path="PM7405_2400.png" size="10692" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM8657_2490.png" attr="" comment="Single electron response for PM 8657 @ 2490V" date="1529596669" name="PM8657_2490.png" path="PM8657_2490.png" size="10669" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM11518_2300.png" attr="" comment="Single electron response for PM 11518 @ 2300V" date="1529596730" name="PM11518_2300.png" path="PM11518_2300.png" size="10555" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM11261_2300.png" attr="" comment="Single electron response for PM 11261 @ 2300V" date="1529596785" name="PM11261_2300.png" path="PM11261_2300.png" size="10421" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM15697_2250.png" attr="" comment="Single electron response for PM 15697 @ 2250V" date="1529599037" name="PM15697_2250.png" path="PM15697_2250.png" size="10816" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM27821_2275.png" attr="" comment="Single electron response for PM 27821 @ 2275V" date="1529599071" name="PM27821_2275.png" path="PM27821_2275.png" size="10605" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM27821_2300.png" attr="" comment="Single electron response for PM 27821 @ 2300V" date="1529599095" name="PM27821_2300.png" path="PM27821_2300.png" size="10668" user="gmorello" version="1"

Revision 112018-06-20 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 25 to 25
 
17208 1.530 2375 10 ns/div 20 mV/div 2 7 PM17208_2375.png Separation practically missing
9050 1.430 2475 10 ns/div 20 mV/div 2 7 PM9050_2475.png Separation practically missing
7469 1.430 2490 10 ns/div 20 mV/div 2 7 PM7469_2490.png Separation practically missing
Changed:
<
<
7405 1.470 2400 10 ns/div 20 mV/div 3 7 PM7405_2400.png Separation practically missing, maybe to be redone at higher voltage
>
>
7405 1.470 2400 10 ns/div 20 mV/div 3 7 PM7405_2400.png
  • Separation practically missing, maybe to be redone at higher voltage
  • With repeat measurement, it seems to discharge

8657 1.480 2490 10 ns/div 20 mV/div 2.5 7 PM8657_2490.png  
11518 1.680 2300 10 ns/div 20 mV/div 3.5 8 PM11518_2300.png  
11261 1.600 2300 10 ns/div 20 mV/div 3.5 8 PM11261_2300.png  
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Revision 102018-06-18 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 25 to 25
 
17208 1.530 2375 10 ns/div 20 mV/div 2 7 PM17208_2375.png Separation practically missing
9050 1.430 2475 10 ns/div 20 mV/div 2 7 PM9050_2475.png Separation practically missing
7469 1.430 2490 10 ns/div 20 mV/div 2 7 PM7469_2490.png Separation practically missing
Added:
>
>
7405 1.470 2400 10 ns/div 20 mV/div 3 7 PM7405_2400.png Separation practically missing, maybe to be redone at higher voltage
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 46 to 47
 
META FILEATTACHMENT attachment="PM17208_2375.png" attr="" comment="Single electron response for PM 17208 @ 2375V" date="1529045536" name="PM17208_2375.png" path="PM17208_2375.png" size="10753" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM9050_2475.png" attr="" comment="Single electron response for PM 9050 @ 2475V" date="1529051366" name="PM9050_2475.png" path="PM9050_2475.png" size="10681" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM7469_2490.png" attr="" comment="Single electron response for PM 7469 @ 2490V" date="1529056273" name="PM7469_2490.png" path="PM7469_2490.png" size="10440" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM7405_2400.png" attr="" comment="Single electron response for PM7405 @ 2400" date="1529313213" name="PM7405_2400.png" path="PM7405_2400.png" size="10692" user="gmorello" version="1"

Revision 92018-06-15 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 24 to 24
 
8141 1.430 2350 10 ns/div 20 mV/div 2 7 PM8141_2350.png Comment
17208 1.530 2375 10 ns/div 20 mV/div 2 7 PM17208_2375.png Separation practically missing
9050 1.430 2475 10 ns/div 20 mV/div 2 7 PM9050_2475.png Separation practically missing
Added:
>
>
7469 1.430 2490 10 ns/div 20 mV/div 2 7 PM7469_2490.png Separation practically missing
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 44 to 45
 
META FILEATTACHMENT attachment="PM8141_2350.png" attr="" comment="Single electron response for PM 8141 @ 2350V" date="1528981742" name="PM8141_2350.png" path="PM8141_2350.png" size="10620" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM17208_2375.png" attr="" comment="Single electron response for PM 17208 @ 2375V" date="1529045536" name="PM17208_2375.png" path="PM17208_2375.png" size="10753" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM9050_2475.png" attr="" comment="Single electron response for PM 9050 @ 2475V" date="1529051366" name="PM9050_2475.png" path="PM9050_2475.png" size="10681" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM7469_2490.png" attr="" comment="Single electron response for PM 7469 @ 2490V" date="1529056273" name="PM7469_2490.png" path="PM7469_2490.png" size="10440" user="gmorello" version="1"

Revision 82018-06-15 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 23 to 23
 
15598 1.480 2300 10 ns/div 20 mV/div 4 8 PM15598_2300.png Comment
8141 1.430 2350 10 ns/div 20 mV/div 2 7 PM8141_2350.png Comment
17208 1.530 2375 10 ns/div 20 mV/div 2 7 PM17208_2375.png Separation practically missing
Added:
>
>
9050 1.430 2475 10 ns/div 20 mV/div 2 7 PM9050_2475.png Separation practically missing
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 42 to 43
 
META FILEATTACHMENT attachment="PM15598_2300.png" attr="" comment="Single electron response for PM 15598 @ 2300V" date="1528881062" name="PM15598_2300.png" path="PM15598_2300.png" size="11066" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM8141_2350.png" attr="" comment="Single electron response for PM 8141 @ 2350V" date="1528981742" name="PM8141_2350.png" path="PM8141_2350.png" size="10620" user="gmorello" version="1"
META FILEATTACHMENT attachment="PM17208_2375.png" attr="" comment="Single electron response for PM 17208 @ 2375V" date="1529045536" name="PM17208_2375.png" path="PM17208_2375.png" size="10753" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM9050_2475.png" attr="" comment="Single electron response for PM 9050 @ 2475V" date="1529051366" name="PM9050_2475.png" path="PM9050_2475.png" size="10681" user="gmorello" version="1"

Revision 72018-06-15 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 22 to 22
 
8885 1.420 2200 10 ns/div 20 mV/div 4.5 9 PM8885_2200.png Peak was broad and not well defined
15598 1.480 2300 10 ns/div 20 mV/div 4 8 PM15598_2300.png Comment
8141 1.430 2350 10 ns/div 20 mV/div 2 7 PM8141_2350.png Comment
Added:
>
>
17208 1.530 2375 10 ns/div 20 mV/div 2 7 PM17208_2375.png Separation practically missing
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 40 to 41
 
META FILEATTACHMENT attachment="PM8885_2200.png" attr="" comment="Single electron response for PM 8885 @ 2200V" date="1528880951" name="PM8885_2200.png" path="PM8885_2200.png" size="10725" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM15598_2300.png" attr="" comment="Single electron response for PM 15598 @ 2300V" date="1528881062" name="PM15598_2300.png" path="PM15598_2300.png" size="11066" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM8141_2350.png" attr="" comment="Single electron response for PM 8141 @ 2350V" date="1528981742" name="PM8141_2350.png" path="PM8141_2350.png" size="10620" user="gmorello" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM17208_2375.png" attr="" comment="Single electron response for PM 17208 @ 2375V" date="1529045536" name="PM17208_2375.png" path="PM17208_2375.png" size="10753" user="gmorello" version="1"

Revision 62018-06-14 - GianfrancoMorello

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 21 to 21
 
17248 1.420 2200 10 ns/div 20 mV/div 2 5.5 PM17248_2200.png OK
8885 1.420 2200 10 ns/div 20 mV/div 4.5 9 PM8885_2200.png Peak was broad and not well defined
15598 1.480 2300 10 ns/div 20 mV/div 4 8 PM15598_2300.png Comment
Added:
>
>
8141 1.430 2350 10 ns/div 20 mV/div 2 7 PM8141_2350.png Comment
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 38 to 39
 
META FILEATTACHMENT attachment="PM17248_2200.png" attr="" comment="Single electron response for PM 17248 @ 2200V" date="1528880852" name="PM17248_2200.png" path="PM17248_2200.png" size="10392" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM8885_2200.png" attr="" comment="Single electron response for PM 8885 @ 2200V" date="1528880951" name="PM8885_2200.png" path="PM8885_2200.png" size="10725" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM15598_2300.png" attr="" comment="Single electron response for PM 15598 @ 2300V" date="1528881062" name="PM15598_2300.png" path="PM15598_2300.png" size="11066" user="cbeiraod" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM8141_2350.png" attr="" comment="Single electron response for PM 8141 @ 2350V" date="1528981742" name="PM8141_2350.png" path="PM8141_2350.png" size="10620" user="gmorello" version="1"

Revision 52018-06-13 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 14 to 14
 
7497 1.420 2300 10 ns/div 20 mV/div 4 8 PM7497_2300.png Weird results:
  • We do see a peak moving with the HV, but there is some kind of underlying structure. What is it?
  • The larger pulses also seem to always come accompanied by a second smaller pulse.
Changed:
<
<
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5   Best separaton so far in our photomultipliers
1.420 2250 10 ns/div 20 mV/div 1 4  
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5   Not the best separation and operating close to maximum voltage
7337 1.420 2300 10 ns/div 20 mV/div 5 7.5   Similar to PM 7497
17248 1.420 2200 10 ns/div 20 mV/div 2 5.5   OK
8885 1.420 2200 10 ns/div 20 mV/div 4.5 9   Peak was broad and not well defined
15598 1.480 2300 10 ns/div 20 mV/div 4 8   Comment
>
>
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5 PM7980_2200.png Best separaton so far in our photomultipliers
1.420 2250 10 ns/div 20 mV/div 1 4 PM7980_2250.png
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5 PM6810_2350.png Not the best separation and operating close to maximum voltage
7337 1.420 2300 10 ns/div 20 mV/div 5 7.5 PM7337_2300.png Similar to PM 7497
17248 1.420 2200 10 ns/div 20 mV/div 2 5.5 PM17248_2200.png OK
8885 1.420 2200 10 ns/div 20 mV/div 4.5 9 PM8885_2200.png Peak was broad and not well defined
15598 1.480 2300 10 ns/div 20 mV/div 4 8 PM15598_2300.png Comment
 
         

-- CristovaoDaCruzESilva - 2018-06-11

Line: 31 to 31
 
META FILEATTACHMENT attachment="PM8919_2490.png" attr="" comment="Single electron response for PM 8919 @ 2490V" date="1528817021" name="PM8919_2490.png" path="PM8919_2490.png" size="10926" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7481_2496.png" attr="" comment="Single electron response for PM 7481 @ 2496V" date="1528817789" name="PM7481_2496.png" path="PM7481_2496.png" size="10922" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7497_2300.png" attr="" comment="Single electron response for PM 7497 @ 2300V" date="1528817955" name="PM7497_2300.png" path="PM7497_2300.png" size="11178" user="cbeiraod" version="1"
Added:
>
>
META FILEATTACHMENT attachment="PM7980_2200.png" attr="" comment="Single electron response for PM 7980 @ 2200V" date="1528878066" name="PM7980_2200.png" path="PM7980_2200.png" size="10493" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7980_2250.png" attr="" comment="Single electron response for PM 7980 @ 2250V" date="1528878087" name="PM7980_2250.png" path="PM7980_2250.png" size="10749" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM6810_2350.png" attr="" comment="Single electron response for PM 6810 @ 2350V" date="1528878211" name="PM6810_2350.png" path="PM6810_2350.png" size="10415" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7337_2300.png" attr="" comment="Single electron response for PM 7337 @ 2300V" date="1528878296" name="PM7337_2300.png" path="PM7337_2300.png" size="10931" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM17248_2200.png" attr="" comment="Single electron response for PM 17248 @ 2200V" date="1528880852" name="PM17248_2200.png" path="PM17248_2200.png" size="10392" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM8885_2200.png" attr="" comment="Single electron response for PM 8885 @ 2200V" date="1528880951" name="PM8885_2200.png" path="PM8885_2200.png" size="10725" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM15598_2300.png" attr="" comment="Single electron response for PM 15598 @ 2300V" date="1528881062" name="PM15598_2300.png" path="PM15598_2300.png" size="11066" user="cbeiraod" version="1"

Revision 42018-06-12 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 6 to 6
 For a full list of the available photomultipliers, see PhotomultiplierInventory2018.

ID LED HV Timebase Scale Int Min Int Max Result Comments
Changed:
<
<
Sune 1.470 2150 10 ns/div 20 mV/div 2 7    
1.470 2198 10 ns/div 20 mV/div 2 7    
1.470 2250 10 ns/div 20 mV/div 2 7    
8919 1.445 2490 10 ns/div 20 mV/div 3.5 7   No separation
7481 1.435 2496 10 ns/div 20 mV/div 3.5 8   No separation
| 7497 | 1.420 | 2300 | 10 ns/div | 20 mV/div | 4 | 8 | |4 Weird results:
>
>
Sune 1.470 2150 10 ns/div 20 mV/div 2 7 PMSune_2150.png  
1.470 2198 10 ns/div 20 mV/div 2 7 PMSune_2198.png  
1.470 2250 10 ns/div 20 mV/div 2 7 PMSune_2250.png  
8919 1.445 2490 10 ns/div 20 mV/div 3.5 7 PM8919_2490.png No separation
7481 1.435 2496 10 ns/div 20 mV/div 3.5 8 PM7481_2496.png No separation
| 7497 | 1.420 | 2300 | 10 ns/div | 20 mV/div | 4 | 8 | PM7497_2300.png |4 Weird results:
 
  • We do see a peak moving with the HV, but there is some kind of underlying structure. What is it?
  • The larger pulses also seem to always come accompanied by a second smaller pulse. 5|
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5   Best separaton so far in our photomultipliers
Line: 19 to 19
 
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5   Not the best separation and operating close to maximum voltage
7337 1.420 2300 10 ns/div 20 mV/div 5 7.5   Similar to PM 7497
17248 1.420 2200 10 ns/div 20 mV/div 2 5.5   OK
Changed:
<
<
8885        
>
>
8885 1.420 2200 10 ns/div 20 mV/div 4.5 9   Peak was broad and not well defined
15598 1.480 2300 10 ns/div 20 mV/div 4 8   Comment
 
         
Deleted:
<
<
 -- CristovaoDaCruzESilva - 2018-06-11
Added:
>
>
META FILEATTACHMENT attachment="PMSune_2150.png" attr="" comment="Single electron response for PM Sune @ 2150V" date="1528816350" name="PMSune_2150.png" path="PMSune_2150.png" size="10138" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PMSune_2198.png" attr="" comment="Single electron response for PM Sune @ 2198V" date="1528816681" name="PMSune_2198.png" path="PMSune_2198.png" size="9935" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PMSune_2250.png" attr="" comment="Single electron response for PM Sune @ 2250V" date="1528816701" name="PMSune_2250.png" path="PMSune_2250.png" size="9996" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM8919_2490.png" attr="" comment="Single electron response for PM 8919 @ 2490V" date="1528817021" name="PM8919_2490.png" path="PM8919_2490.png" size="10926" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7481_2496.png" attr="" comment="Single electron response for PM 7481 @ 2496V" date="1528817789" name="PM7481_2496.png" path="PM7481_2496.png" size="10922" user="cbeiraod" version="1"
META FILEATTACHMENT attachment="PM7497_2300.png" attr="" comment="Single electron response for PM 7497 @ 2300V" date="1528817955" name="PM7497_2300.png" path="PM7497_2300.png" size="11178" user="cbeiraod" version="1"

Revision 32018-06-12 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Line: 17 to 17
 
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5   Best separaton so far in our photomultipliers
1.420 2250 10 ns/div 20 mV/div 1 4  
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5   Not the best separation and operating close to maximum voltage
Added:
>
>
7337 1.420 2300 10 ns/div 20 mV/div 5 7.5   Similar to PM 7497
17248 1.420 2200 10 ns/div 20 mV/div 2 5.5   OK
8885        
 
         

Revision 22018-06-12 - CristovaoDaCruzESilva

Line: 1 to 1
 
META TOPICPARENT name="BL4S2018"

Measurements

Measurements of the Single Electron Response (SER) of the photomultipliers. For a full list of the available photomultipliers, see PhotomultiplierInventory2018.

Changed:
<
<
ID HV Timebase Scale Int Min Int Max Result Comments
Sune 2150 10 ns/div 10 mV/div 2 7    
2198 10 ns/div 10 mV/div 2 7    
2250 10 ns/div 10 mV/div 2 7    
8919 2490 10 ns/div 10 mV/div 3.5 7    
7481 2496 10 ns/div 10 mV/div 3.5 8    
7497 2300 10 ns/div 10 mV/div 4 8    
       
>
>
ID LED HV Timebase Scale Int Min Int Max Result
<!-- -->
Sorted ascending
Comments
         
Sune 1.470 2150 10 ns/div 20 mV/div 2 7    
Sune 1.470 2198 10 ns/div 20 mV/div 2 7    
Sune 1.470 2250 10 ns/div 20 mV/div 2 7    
8919 1.445 2490 10 ns/div 20 mV/div 3.5 7   No separation
7481 1.435 2496 10 ns/div 20 mV/div 3.5 8   No separation
7497 1.420 2300 10 ns/div 20 mV/div 4 8   Weird results:
  • We do see a peak moving with the HV, but there is some kind of underlying structure. What is it?
  • The larger pulses also seem to always come accompanied by a second smaller pulse.
7980 1.420 2200 10 ns/div 20 mV/div 1.5 5   Best separaton so far in our photomultipliers
7980 1.420 2250 10 ns/div 20 mV/div 1 4   Best separaton so far in our photomultipliers
6810 1.390 2350 10 ns/div 20 mV/div 1.5 5   Not the best separation and operating close to maximum voltage
 

-- CristovaoDaCruzESilva - 2018-06-11

Revision 12018-06-11 - CristovaoDaCruzESilva

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="BL4S2018"

Measurements

Measurements of the Single Electron Response (SER) of the photomultipliers. For a full list of the available photomultipliers, see PhotomultiplierInventory2018.

ID HV Timebase Scale Int Min Int Max Result Comments
Sune 2150 10 ns/div 10 mV/div 2 7    
2198 10 ns/div 10 mV/div 2 7    
2250 10 ns/div 10 mV/div 2 7    
8919 2490 10 ns/div 10 mV/div 3.5 7    
7481 2496 10 ns/div 10 mV/div 3.5 8    
7497 2300 10 ns/div 10 mV/div 4 8    
       

-- CristovaoDaCruzESilva - 2018-06-11

 
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