HBD-CF4Transmittance (The case of the Anomalous O2 Spikes) HBD Meeting 1/5/2010 B.Azmoun, S.Stoll...

HBD-CF4Transmittance HBD-CF4Transmittance (The case of the Anomalous O2 (The case of the Anomalous O2 Spikes)Spikes)

HBD Meeting 1/5/2010HBD Meeting 1/5/2010

B.Azmoun, S.Stoll

Brookhaven National Lab

PPM History since 12/3/09PPM History since 12/3/09

No Spikes, just ppm’s getting lower as expected

Spikes Appear, and with inc. freq.

H2O

O2

2

O2 Spikes do not Correlate with HBD Diff. O2 Spikes do not Correlate with HBD Diff. Press. Press. (cause unknown, but we have theories….)(cause unknown, but we have theories….)

3

Zoom InZoom In…(Still no correlation observed)…(Still no correlation observed)

4

Compare moment spikes occur to Trans. Compare moment spikes occur to Trans. Scan ResultsScan Results

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Tra

nsm

ittan

ce [%

]

Wavelength [Angstroms]

Transmittance (HBD IN) Raw Data

FIT fcn.(Fit:120-180nm)

Smpl. Scan:

Ref . Scan:

Scan Type:Gas Flow: slpmAnlz: H= ppm, O= ppmTrans: H = ppm, O= ppm%Npe (Fit ppms:108-200nm)= %Int. Trans.(Fit: 112-186nm)= %Int. Trans.(Data: 134-168nm)=

0.1 0.0100.0100.0

SpectVessel-Ar_Cells-Vac_122909_01.txt

SpectVessel-Ar_Cells-HBD-CF4_123109_02.txt

HBD-CF49.5

0.01 0.4

100.6

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Tran

smitt

ance

[%]


Transmittance (HBD WEST)Raw Data

FIT fcn. (Fit:120-180nm)

Smpl. Scan:

Ref . Scan:

Scan Type:Gas Flow: slpmAnlz: H= ppm, O= ppmTrans: H = ppm, O= ppm%Npe(Fit ppms:108-200nm)= %Int. Trans.(Fit: 112-186nm)= %Int. Trans.(Data: 134-168nm)=

23.1 1.992.191.9

4.752.8 3.0



HBD-CF4

93.00.00

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Tran

smitt

ance

[%]


Transmittance (HBD EAST) Raw Data


Smpl. Scan:

Ref . Scan:

Scan Type:Gas Flow: slpmAnlz: H= ppm, O= ppmTrans: H = ppm, O= ppm%Npe(Fit ppms: 108-200nm)= %Int. Trans.(Fit: 112-186nm)= %Int. Trans.(Data: 134-168nm)=

21.0 1.492.992.8

4.752.3 1.0



HBD-CF4

93.5

12/31/09 Scan of HBD-CF4

Time of Scan

Note: Three Scans are done in succession:1st: Input, 2nd: West, 3rd: East5

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Smpl. Scan:

Ref . Scan:


1.8 1.298.998.8



HBD-CF49.5

0.0 0.1

98.7

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Smpl. Scan:

Ref . Scan:


23.8 2.091.991.7

4.752.9 5.4



HBD-CF4

92.80.00

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smitt

ance

[%]




Smpl. Scan:

Ref . Scan:


22.0 1.992.492.2

4.752.4 2.3



HBD-CF4

92.9

01/01/10 Scan of 01/01/10 Scan of HBD-CF4HBD-CF4

Note: Analyzer values are recorded at beginning of scan 6

01/03/10 Scan of HBD-CF401/03/10 Scan of HBD-CF4

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Smpl. Scan:

Ref . Scan:


0.8 0.099.799.7



HBD-CF410

0.0 0.2

100.4

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Smpl. Scan:

Ref . Scan:


20.4 1.193.293.1

5.02.3 2.6



HBD-CF4

94.50.00

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smitt

ance

[%]




Smpl. Scan:

Ref . Scan:


18.5 1.293.893.6

5.01.8 1.1



HBD-CF4

94.3

It seems elevated analyzer values have little effect on Trans. Results!

Note: Last scan is done at about the same time a spike appears! 7

01/04/10 Scan of HBD-CF401/04/10 Scan of HBD-CF4

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Smpl. Scan:

Ref . Scan:


1.6 0.699.299.2



HBD-CF49.5

0.0 0.9

98.0

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Smpl. Scan:

Ref . Scan:


20.3 3.592.291.9

4.752.9 2.8



HBD-CF4

92.10.00

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smitt

ance

[%]




Smpl. Scan:

Ref . Scan:


22.2 2.991.991.7

4.752.3 1.5



HBD-CF4

92.0

It seems elevated analyzer values have little effect on Trans. Results!

Note: 2nd scan is done at about the same time a spike appears! 8

HBD-CF4Transmittance (The case of the Anomalous O2 Spikes) HBD Meeting 1/5/2010 B.Azmoun, S.Stoll...

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Transcript of HBD-CF4Transmittance (The case of the Anomalous O2 Spikes) HBD Meeting 1/5/2010 B.Azmoun, S.Stoll...