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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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Vthin1 ->40 ,Vthin2 ->25 ---peak~700e (data0909) analogscan ...good tuning target -> 700e ---threshold_dist ...ok analog ...good (data0913) (at -30degC, V=-50V ) noise scan (data0914) too many masked pixels... | ||||||||
Changed: | ||||||||
< < | KEKFE65-8 "GlobalConfig": { " "CompVbnDac": 25, "PreCompVbnDac": 35, "PrmpVbnFolDac": 190, "PrmpVbpDac": 190, "TDacLd": 1, "VbnLccDac": 1, "VffDac": 10, "Vthin1Dac": 40, "Vthin2Dac": 25 | |||||||
> > | KEKFE65-8
leakage current ~1uA at V=-50V, T=-30degC "GlobalConfig": { " "CompVbnDac": 25, "PreCompVbnDac": 35, "PrmpVbnFolDac": 190, "PrmpVbpDac": 190, "TDacLd": 1, "VbnLccDac": 1, "VffDac": 10, "Vthin1Dac": 40, "Vthin2Dac": 25 | |||||||
analog --- good | ||||||||
Added: | ||||||||
> > | KEKFE65-9 leakage current ~1.6uA at V=-50V, T=-30degC | |||||||
-- Junki Suzuki - 2016-10-19
Comments |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
Line: 55 to 55 | ||||||||
Vthin1 ->40 ,Vthin2 ->25 ---peak~700e (data0909) analogscan ...good tuning target -> 700e ---threshold_dist ...ok analog ...good (data0913) (at -30degC, V=-50V ) noise scan (data0914) too many masked pixels... | ||||||||
Added: | ||||||||
> > | KEKFE65-8 "GlobalConfig": { " "CompVbnDac": 25, "PreCompVbnDac": 35, "PrmpVbnFolDac": 190, "PrmpVbpDac": 190, "TDacLd": 1, "VbnLccDac": 1, "VffDac": 10, "Vthin1Dac": 40, "Vthin2Dac": 25 analog --- good | |||||||
-- Junki Suzuki - 2016-10-19
Comments |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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Vthin1 ->80 ,Vthin2 ->65 ---no peak in threshold_dist | ||||||||
Changed: | ||||||||
< < | Vthin1 ->40 ,Vthin2 ->25 ---peak~700e (data0909) analogscan ...good!!!!!!!!!!!!!! tuning target -> 700e ---threshold_dist ...ok analog ...good!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(data0913) (at -30degC, V=-50V ) | |||||||
> > | Vthin1 ->40 ,Vthin2 ->25 ---peak~700e (data0909) analogscan ...good tuning target -> 700e ---threshold_dist ...ok analog ...good (data0913) (at -30degC, V=-50V ) noise scan (data0914) too many masked pixels... | |||||||
-- Junki Suzuki - 2016-10-19 |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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10.20 | ||||||||
Changed: | ||||||||
< < | PreCompVbnDac 50 ->25, PrmpVbpDac 40->150, Vthin1 100->80, Vthin2 30->60 ,tuning target ->1000e ---tuning ...ok analog ...ok | |||||||
> > | PreCompVbnDac 50 ->25, PrmpVbpDac 40->150, Vthin1 100->80, Vthin2 30->60 ,tuning target ->1000e ---threshold ...ok analog ...ok | |||||||
Changed: | ||||||||
< < | Vthin1 100->80, Vthin2 30->70 ---no peak in threshold_dist | |||||||
> > | Vthin1 ->80, Vthin2 ->70 ---no peak in threshold_dist
Vthin1 ->80 ,Vthin2 ->65 ---no peak in threshold_dist
Vthin1 ->40 ,Vthin2 ->25 ---peak~700e (data0909) analogscan ...good!!!!!!!!!!!!!! tuning target -> 700e ---threshold_dist ...ok analog ...good!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(data0913) (at -30degC, V=-50V ) | |||||||
-- Junki Suzuki - 2016-10-19 |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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tuning done with this condition : threshold scan after tuning --> data0692. tuning target 1000e | ||||||||
Added: | ||||||||
> > | 10.20PreCompVbnDac 50 ->25, PrmpVbpDac 40->150, Vthin1 100->80, Vthin2 30->60 ,tuning target ->1000e ---tuning ...ok analog ...ok Vthin1 100->80, Vthin2 30->70 ---no peak in threshold_dist | |||||||
-- Junki Suzuki - 2016-10-19
Comments |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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10.19 | ||||||||
Changed: | ||||||||
< < | 温度が変わるとThresholdがさがるらしい。プリアンプのゲイン等(prmpVbpとVbnLcc)をいじってみると良いとアドバイス。 KEKFE65-8でも同様に温度がさがるにつれて、大半のpixelが見えなくなる。Leakage current compentation?がついているところだけやたらanalogが高い。 | |||||||
> > | 温度が変わるとThresholdがさがるらしい。プリアンプのゲイン等(prmpVbpとVbnLcc)をいじってみると良いとアドバイス。
"PrmpVbpDac": 100,
"VbnLccDac": 150,
KEKFE65-8でも同様に温度がさがるにつれて、大半のpixelが見えなくなる。Leakage current compentation?がついているところだけやたらanalogが高い。 | |||||||
逆バイアスをかける。-50Vで0.6uA程度。at -30degC。 ->応答は変わらず。 | ||||||||
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-20 degree -->working ok. (slightly worse -data0619) | ||||||||
Added: | ||||||||
> > | -30 degree --> a bit worse (-data0630) but still returning analog signal for most of chips. supply 50V --> not changing much... (-data0634) tuning done with this condition : threshold scan after tuning --> data0692. tuning target 1000e | |||||||
-- Junki Suzuki - 2016-10-19
Comments |
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After Irrad 2016.10.18 (Log)10.18 | ||||||||
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今の条件で、パッチワークをかえてみる。 (上2つを入れてみる。) ->変わらない。 | ||||||||
Added: | ||||||||
> > | Start to check KEKFE65-6 (no bias) to isolate issues for BR structure and sensor itself. 20degree --> perfect (need patch work CompVbnDac & PrmpVbnFolDac to make better analog scan) (set VbnLccDac =150 in jason config file following Timon's suggestion.) 0degree --> also working fine without any change. (wait 10 min at 0 degree, still ok -data0603) -10 degree --> working fine. -20 degree -->working ok. (slightly worse -data0619) | |||||||
-- Junki Suzuki - 2016-10-19
Comments |
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Added: | ||||||||
> > |
After Irrad 2016.10.18 (Log)10.18KEKFE65-6 tuning -> イベント数が少ない -> 大半のPixelが見えていなかった(analog)見えているのはLeakage current compentation?がついているところのみ。設定温度は-30degC digitalは応答を示す。 温度を上げてみると、見えるピクセルが増え始める。バイアスをかけてもあまり変わらず。 ASICのみのKEKFE65-0で温度による変化を見たが、大きな影響はない。 -30degCでパラパラと応答がなくなるピクセルは見られたが、それほど多くはない。 10.19温度が変わるとThresholdがさがるらしい。プリアンプのゲイン等(prmpVbpとVbnLcc)をいじってみると良いとアドバイス。KEKFE65-8でも同様に温度がさがるにつれて、大半のpixelが見えなくなる。Leakage current compentation?がついているところだけやたらanalogが高い。 逆バイアスをかける。-50Vで0.6uA程度。at -30degC。 ->応答は変わらず。 アドバイスを実行する。 prmpVbp->100 VbnLcc ->150 ->特に変化は見られない thsholdをかえてみる。(Vthin1->100, Vthin2->50) analogは変化なし。thresholdscanではめちゃ高い。 thsholdをかえてみる。(Vthin1->80, Vthin2->50) analogは変化なし。thresholdscanではめちゃ高い。 今の条件で、パッチワークをかえてみる。 (上2つを入れてみる。) ->変わらない。 -- Junki Suzuki - 2016-10-19 Comments |