Difference between revisions of "MainPage:Nuclear:NPS:PWO:CrystalLOG:SICCAJ18"

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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:10%;" | Date  
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:15%;" | Experimenter(s)
 
! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:15%;" | Description  
 
! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:15%;" | Description  
 
! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:75%;" | Comments
 
! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:75%;" | Comments
 
|-
 
|-
−
| 12/14/2015 || Pictures || Documentation of crystal's conditions as it arrived at CUA.
+
| 12/14/2015 || Marco || Pictures || Documentation of crystal's conditions as it arrived at CUA.
 
|-
 
|-
−
| 12/15/2015 || Thermal annealing || Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
+
| 12/15/2015 || Marco || Thermal annealing || Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
 
|-
 
|-
−
| 12/17/2015 || Long. Transmittance || Note: crystal NOT wrapped.
+
| 12/17/2015 || Marco || Long. Transmittance || Note: crystal NOT wrapped.
 
|-
 
|-
−
| 12/17/2015 || Transverse Transmittance || Scan at 360, 420, and 620nm.
+
| 12/17/2015 || Marco || Transverse Transmittance || Scan at 360, 420, and 620nm.
 
|-
 
|-
−
| 12/18/2015 || Irradiation || 160 keV photons at 6mA, for 10min.
+
| 12/18/2015 || Marco || Irradiation || 160 keV photons at 6mA, for 10min.
 
|-
 
|-
−
| 12/18/2015 || Transverse Transmittance || Scan at 360, 420, and 620nm after 30 min of irradiation.
+
| 12/18/2015 || Marco || Transverse Transmittance || Scan at 360, 420, and 620nm after 30 min of irradiation.
 
|-
 
|-
−
| 01/05/2016 || LY scan || At 100ns, as described in run 3047.
+
| 01/05/2016 || Marco || LY scan || At 100ns, as described in run 3047.
 
|-
 
|-
−
| 03/04/2016 || Transverse Transmittance || At the center of the crystal, every nm from 200nm until 800nm. Sample: 1315
+
| 03/04/2016 || Marco || Transverse Transmittance || At the center of the crystal, every nm from 200nm until 800nm. Sample: 1315
 
|-
 
|-
−
| 03/04/2016 || Dimensions || Crystal's dimensions measured. Length and six points of width (3 in each face).
+
| 03/04/2016 || Marco || Dimensions || Crystal's dimensions measured. Length and six points of width (3 in each face).
 
|-
 
|-
−
| 05/23/2016 || Transverse Transmittance Scan || Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
+
| 05/23/2016 || Marco || Transverse Transmittance Scan || Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
 
|-
 
|-
−
| 07/05/2016 || Longitudinal Transmittance Scan || Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
+
| 07/06/2016 || Summer Students || Longitudinal Transmittance Scan || Wavelengths: 200-800 nm. Measured effect of off-center placement of crystal on transmittance. +1.3°, +2.3°, -1.3°, -2.3.
 +
|-
 +
| 07/06/2016 || Summer Students || Longitudinal Transmittance Scan || Wavelengths: 200-800 nm. Measured light beam entering both end face of crystal in spectrometer. "flip" of crystal.
 +
|-
 +
| 07/07/2016 || Summer Students || Longitudinal Transmittance Scan || Wavelengths: 200-800 nm. Measured effect of iris diameter on transmittace. 8mm, 11.5mm (used), 15mm, 17mm.
 +
|-
 +
| 07/14/2016 || Summer Students || Longitudinal Transmittance Scan || Wavelengths: 200-800 nm. Remeasured effect of off-center placement of crystal on transmittance BUT with removal of all residue/tape off 2x2 crystal face. +1.3°, +2.3°, -1.3°, -2.3.
 +
|-
 +
| 07/21/2016 || Summer Students || Light Yield (unmeasured) || Crystal accident , crack on 2x2 face of crystal.
 +
|-
 +
| 07/28/2016 || Summer Students || Transverse Transmittance || 200-800nm wavelengths. 10cm down crystal.
 +
|-
 +
| 12/20/2016 || TH || Light Yield || run 3507: '''11.28 pe/MeV''', note: not a good fit to SEP, low stat run.
 +
|-
 +
| 07/28/2016 || Summer Students || Longitudinal Transmittance || 200-800nm wavelengths. Sampling period: 0.6s, moving motor at 2mm/s.
 +
|-
 +
| 07/07/2017 || Summer Students || Longitudinal Transmittance || 200-800nm wavelengths. Sampling period: 0.6s, moving motor at 2mm/s.
 +
|-
 +
| 07/10/2017 || Summer Students ||  Light Yield || Run 3691. 100ns gw. ~50,000 incidents ~3 layers of teflon tape ~1 layer of electrical. LY=10.01 pe/MeV.
 
|}
 
|}
  
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| valign="top"|
 
| valign="top"|
 
[[File:SICCA J18 LT.png|thumb|center|340px|Longitudinal transmittance measured at Lambda 750 (no integrating sphere).]]
 
[[File:SICCA J18 LT.png|thumb|center|340px|Longitudinal transmittance measured at Lambda 750 (no integrating sphere).]]
 +
| valign="top"|
 +
|-
 +
| valign="top"|
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[[File:J18longtrans.png|thumb|center|340px|Longitudinal transmittance measured at Lambda 950 (integrating sphere).]]
 
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|}
 
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| valign="top"|
 
| valign="top"|
 
[[File:SICCAJ18.JPG|thumb|center|340px|xxxx.]]
 
[[File:SICCAJ18.JPG|thumb|center|340px|xxxx.]]
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| valign="top"|
 +
|-
 +
[[File:J18crack.JPG|thumb|left|340px|On July 21 when crystal was put in to test light yield (light yield was not taken).]]
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|}
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 +
== Transmittance Uncertainty ==
 +
 +
{| border="0" style="text-align:center;" width="100%"
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|-
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| valign="top"|
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[[File:J18iris.png|thumb|center|340px|Iris Diameter vs Transmittance]]
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| valign="top"|
 +
[[File:J18degree.png|thumb|center|340px|Ideal crystal placement would be 20cm side parallel to light beam. Reasonable placement errors would be 1.3° and 2.3° off of this. At these angles the beam still appeared to fall within the crystla face under the "Align" function]]
 +
|-
 +
| valign="top"|
 +
[[File:J18flip.png|thumb|center|340px|Internal Symmetry of Crystal. "Flipping" the crystal by reversing which end-face the light beam hits first.]]
 
|}
 
|}

Latest revision as of 11:43, 11 July 2017

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Time LOG

SICCA J18
Date Experimenter(s) Description Comments
12/14/2015 Marco Pictures Documentation of crystal's conditions as it arrived at CUA.
12/15/2015 Marco Thermal annealing Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
12/17/2015 Marco Long. Transmittance Note: crystal NOT wrapped.
12/17/2015 Marco Transverse Transmittance Scan at 360, 420, and 620nm.
12/18/2015 Marco Irradiation 160 keV photons at 6mA, for 10min.
12/18/2015 Marco Transverse Transmittance Scan at 360, 420, and 620nm after 30 min of irradiation.
01/05/2016 Marco LY scan At 100ns, as described in run 3047.
03/04/2016 Marco Transverse Transmittance At the center of the crystal, every nm from 200nm until 800nm. Sample: 1315
03/04/2016 Marco Dimensions Crystal's dimensions measured. Length and six points of width (3 in each face).
05/23/2016 Marco Transverse Transmittance Scan Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/06/2016 Summer Students Longitudinal Transmittance Scan Wavelengths: 200-800 nm. Measured effect of off-center placement of crystal on transmittance. +1.3°, +2.3°, -1.3°, -2.3.
07/06/2016 Summer Students Longitudinal Transmittance Scan Wavelengths: 200-800 nm. Measured light beam entering both end face of crystal in spectrometer. "flip" of crystal.
07/07/2016 Summer Students Longitudinal Transmittance Scan Wavelengths: 200-800 nm. Measured effect of iris diameter on transmittace. 8mm, 11.5mm (used), 15mm, 17mm.
07/14/2016 Summer Students Longitudinal Transmittance Scan Wavelengths: 200-800 nm. Remeasured effect of off-center placement of crystal on transmittance BUT with removal of all residue/tape off 2x2 crystal face. +1.3°, +2.3°, -1.3°, -2.3.
07/21/2016 Summer Students Light Yield (unmeasured) Crystal accident , crack on 2x2 face of crystal.
07/28/2016 Summer Students Transverse Transmittance 200-800nm wavelengths. 10cm down crystal.
12/20/2016 TH Light Yield run 3507: 11.28 pe/MeV, note: not a good fit to SEP, low stat run.
07/28/2016 Summer Students Longitudinal Transmittance 200-800nm wavelengths. Sampling period: 0.6s, moving motor at 2mm/s.
07/07/2017 Summer Students Longitudinal Transmittance 200-800nm wavelengths. Sampling period: 0.6s, moving motor at 2mm/s.
07/10/2017 Summer Students Light Yield Run 3691. 100ns gw. ~50,000 incidents ~3 layers of teflon tape ~1 layer of electrical. LY=10.01 pe/MeV.

Transmittance measurements

Longitudinal transmittance measured at Lambda 750 (no integrating sphere).
Longitudinal transmittance measured at Lambda 950 (integrating sphere).

Pictures at 12/14/2015

On July 21 when crystal was put in to test light yield (light yield was not taken).
xxxx.
xxxx.

Transmittance Uncertainty

Iris Diameter vs Transmittance
Ideal crystal placement would be 20cm side parallel to light beam. Reasonable placement errors would be 1.3° and 2.3° off of this. At these angles the beam still appeared to fall within the crystla face under the "Align" function
Internal Symmetry of Crystal. "Flipping" the crystal by reversing which end-face the light beam hits first.
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