AfterIrrad20161018 < Main

Tags: view all tags
---+ After Irrad 2016.10.18 (Log)
---++ 10.18

KEKFE65-6 tuning -&gt; &#x30A4;&#x30D9;&#x30F3;&#x30C8;&#x6570;&#x304C;&#x5C11;&#x306A;&#x3044; -&gt; &#x5927;&#x534A;&#x306E;Pixel&#x304C;&#x898B;&#x3048;&#x3066;&#x3044;&#x306A;&#x304B;&#x3063;&#x305F;(analog)<br />&#x898B;&#x3048;&#x3066;&#x3044;&#x308B;&#x306E;&#x306F;Leakage current compentation?&#x304C;&#x3064;&#x3044;&#x3066;&#x3044;&#x308B;&#x3068;&#x3053;&#x308D;&#x306E;&#x307F;&#x3002;&#x8A2D;&#x5B9A;&#x6E29;&#x5EA6;&#x306F;-30degC

digital&#x306F;&#x5FDC;&#x7B54;&#x3092;&#x793A;&#x3059;&#x3002;

&#x6E29;&#x5EA6;&#x3092;&#x4E0A;&#x3052;&#x3066;&#x307F;&#x308B;&#x3068;&#x3001;&#x898B;&#x3048;&#x308B;&#x30D4;&#x30AF;&#x30BB;&#x30EB;&#x304C;&#x5897;&#x3048;&#x59CB;&#x3081;&#x308B;&#x3002;&#x30D0;&#x30A4;&#x30A2;&#x30B9;&#x3092;&#x304B;&#x3051;&#x3066;&#x3082;&#x3042;&#x307E;&#x308A;&#x5909;&#x308F;&#x3089;&#x305A;&#x3002;

ASIC&#x306E;&#x307F;&#x306E;KEKFE65-0&#x3067;&#x6E29;&#x5EA6;&#x306B;&#x3088;&#x308B;&#x5909;&#x5316;&#x3092;&#x898B;&#x305F;&#x304C;&#x3001;&#x5927;&#x304D;&#x306A;&#x5F71;&#x97FF;&#x306F;&#x306A;&#x3044;&#x3002;<br />-30degC&#x3067;&#x30D1;&#x30E9;&#x30D1;&#x30E9;&#x3068;&#x5FDC;&#x7B54;&#x304C;&#x306A;&#x304F;&#x306A;&#x308B;&#x30D4;&#x30AF;&#x30BB;&#x30EB;&#x306F;&#x898B;&#x3089;&#x308C;&#x305F;&#x304C;&#x3001;&#x305D;&#x308C;&#x307B;&#x3069;&#x591A;&#x304F;&#x306F;&#x306A;&#x3044;&#x3002;

---++ 10.19

&#x6E29;&#x5EA6;&#x304C;&#x5909;&#x308F;&#x308B;&#x3068;Threshold&#x304C;&#x3055;&#x304C;&#x308B;&#x3089;&#x3057;&#x3044;&#x3002;&#x30D7;&#x30EA;&#x30A2;&#x30F3;&#x30D7;&#x306E;&#x30B2;&#x30A4;&#x30F3;&#x7B49;&#xFF08;prmpVbp&#x3068;VbnLcc&#xFF09;&#x3092;&#x3044;&#x3058;&#x3063;&#x3066;&#x307F;&#x308B;&#x3068;&#x826F;&#x3044;&#x3068;&#x30A2;&#x30C9;&#x30D0;&#x30A4;&#x30B9;&#x3002;

"PrmpVbpDac": 100,

"VbnLccDac": 150,

<br />KEKFE65-8&#x3067;&#x3082;&#x540C;&#x69D8;&#x306B;&#x6E29;&#x5EA6;&#x304C;&#x3055;&#x304C;&#x308B;&#x306B;&#x3064;&#x308C;&#x3066;&#x3001;&#x5927;&#x534A;&#x306E;pixel&#x304C;&#x898B;&#x3048;&#x306A;&#x304F;&#x306A;&#x308B;&#x3002;Leakage current compentation?&#x304C;&#x3064;&#x3044;&#x3066;&#x3044;&#x308B;&#x3068;&#x3053;&#x308D;&#x3060;&#x3051;&#x3084;&#x305F;&#x3089;analog&#x304C;&#x9AD8;&#x3044;&#x3002;

&#x9006;&#x30D0;&#x30A4;&#x30A2;&#x30B9;&#x3092;&#x304B;&#x3051;&#x308B;&#x3002;-50V&#x3067;0.6uA&#x7A0B;&#x5EA6;&#x3002;at -30degC&#x3002;<br />-&gt;&#x5FDC;&#x7B54;&#x306F;&#x5909;&#x308F;&#x3089;&#x305A;&#x3002;

&#x30A2;&#x30C9;&#x30D0;&#x30A4;&#x30B9;&#x3092;&#x5B9F;&#x884C;&#x3059;&#x308B;&#x3002;<br />prmpVbp-&gt;100 VbnLcc -&gt;150<br />-&gt;&#x7279;&#x306B;&#x5909;&#x5316;&#x306F;&#x898B;&#x3089;&#x308C;&#x306A;&#x3044;<br /><br />thshold&#x3092;&#x304B;&#x3048;&#x3066;&#x307F;&#x308B;&#x3002;(Vthin1-&gt;100, Vthin2-&gt;50)<br />analog&#x306F;&#x5909;&#x5316;&#x306A;&#x3057;&#x3002;thresholdscan&#x3067;&#x306F;&#x3081;&#x3061;&#x3083;&#x9AD8;&#x3044;&#x3002;

thshold&#x3092;&#x304B;&#x3048;&#x3066;&#x307F;&#x308B;&#x3002;(Vthin1-&gt;80, Vthin2-&gt;50)<br />analog&#x306F;&#x5909;&#x5316;&#x306A;&#x3057;&#x3002;thresholdscan&#x3067;&#x306F;&#x3081;&#x3061;&#x3083;&#x9AD8;&#x3044;&#x3002;

&#x4ECA;&#x306E;&#x6761;&#x4EF6;&#x3067;&#x3001;&#x30D1;&#x30C3;&#x30C1;&#x30EF;&#x30FC;&#x30AF;&#x3092;&#x304B;&#x3048;&#x3066;&#x307F;&#x308B;&#x3002;<br />&#xFF08;&#x4E0A;2&#x3064;&#x3092;&#x5165;&#x308C;&#x3066;&#x307F;&#x308B;&#x3002;&#xFF09;&#x3000;-&gt;&#x5909;&#x308F;&#x3089;&#x306A;&#x3044;&#x3002;

Start to check KEKFE65-6 (no bias) to isolate issues for BR structure and sensor itself.

20degree --&gt; perfect (need patch work CompVbnDac & PrmpVbnFolDac to make better analog scan) (set VbnLccDac =150 in jason config file following Timon's suggestion.)

0degree --&gt; also working fine without any change. (wait 10 min at 0 degree, still ok -data0603)

-10 degree --&gt; working fine.

-20 degree --&gt;working ok. (slightly worse -data0619)

-30 degree --&gt; a bit worse (-data0630) but still returning analog signal for most of chips.

supply 50V --&gt; not changing much... (-data0634)

tuning done with this condition : threshold scan after tuning --&gt; data0692. tuning target 1000e

---++ 10.20

PreCompVbnDac 50 -&gt;25, PrmpVbpDac 40-&gt;150, Vthin1 100-&gt;80, Vthin2 30-&gt;60 ,tuning target -&gt;1000e ---threshold ...ok analog ...ok

Vthin1 -&gt;80, Vthin2 -&gt;70 ---no peak in threshold_dist

Vthin1 -&gt;80 ,Vthin2 -&gt;65 ---no peak in threshold_dist

Vthin1 -&gt;40 ,Vthin2 -&gt;25 ---peak~700e (data0909)  analogscan ...good<br />tuning target -&gt; 700e  ---threshold_dist ...ok analog ...good (data0913)<br />(at -30degC, V=-50V )<br />noise scan (data0914) too many masked pixels...

KEKFE65-8

leakage current ~1uA at V=-50V, T=-30degC<br /><br />"GlobalConfig": {<br />           "<br />           "CompVbnDac": 25,<br />           "PreCompVbnDac": 35,<br />           "PrmpVbnFolDac": 190,<br />           "PrmpVbpDac": 190,<br />           "TDacLd": 1,<br />           "VbnLccDac": 1,<br />           "VffDac": 10,<br />           "Vthin1Dac": 40,<br />           "Vthin2Dac": 25

analog --- good

KEKFE65-9

leakage current ~1.6uA at V=-50V, T=-30degC

-- %USERSIG{JunkiSuzuki - 2016-10-19}%

---++ Comments

<br />%COMMENT%
Topic revision: r8 - 2016-10-20 - KojiNakamura