[Pansophy] New Version added to Ready for Approvals on DocuShare ( https://jlabdoc.jlab.org/docushare/ )

Tue Aug 8 11:16:03 EDT 2023

Danny's
Adam's
Put a leak check bag around entire cavity and seal above 2 phase line explosion bonded joint.
Partially inflate bag with helium and stop flow.
Allow the leak detector the appropriate warmup time.
Start the Labview tracing program to collect the leak check data.
Do NOT use the zeroing feature on the leak detector during the helium vessel leak check.
The helium vessel shall be pumped long enough to have a MDL of less than 2E-9 mbar l/s. Pump time will vary depending on how long it takes for the sensitivity to be low enough.
Once the leak rate is indicated below 2e-9 mbar l/s the bag can be filled with helium. Start helium flow into the bag and stop the flow when the bag starts to inflate.
If any leak is indicated at all, the leak checked shall be considered to have failed.
Five minutes after filling the bag with helium, the calibrated leak shall be opened. Allow the trace to run long enough for the helium to settle to a flat line, indicating the leak rate of the calibrated leak.
Record the size of the leak with the calibrated leak open.
Record the size of the calibrated leak and the expiration date of the calibration.
Upload leak check data file and a saved picture of the trace with Cavity ID, total pressure, date, calibrated leak size, and time of helium spray indicated on the picture.
Toggle the yes/no button to indicate if the leak rate is acceptable.
Put a leak check bag around entire cavity and seal above 2 phase line explosion bonded joint.
Allow the leak detector the appropriate warmup time.
Start the Labview tracing program to collect the leak check data.
Do NOT use the zeroing feature on the leak detector during the helium vessel leak check.
The helium vessel shall be pumped long enough to have a MDL of less than 2E-9 mbar l/s. Pump time will vary depending on how long it takes for the sensitivity to be low enough.
Once the leak rate is indicated below 2e-9 mbar l/s flow helium into the bag and stop the flow when bag starts to inflate.
Any detectable leak shall constitute test failure.
Five minutes after filling the bag with helium, the calibrated leak shall be opened. Allow the trace to run long enough for the helium to settle to a flat line, indicating the leak rate of the calibrated leak.
Record the size of the leak with the calibrated leak open.
Record the size of the calibrated leak and the expiration date of the calibration.
Upload leak check data file and a saved picture of the trace with Cavity ID, total pressure, date, calibrated leak size, and time of helium spray indicated on the picture.
Toggle the yes/no button to indicate if the leak rate is acceptable.

From: Tony Reilly <areilly at jlab.org>
Sent: Tuesday, August 8, 2023 10:11 AM
To: Valerie Bookwalter <bookwalt at jlab.org>; Kirk Davis <kdavis at jlab.org>
Subject: Re: New Version added to Ready for Approvals on DocuShare ( https://jlabdoc.jlab.org/docushare/ )

Hi Valerie,

Do we know what changes were made?

Thanks,
Tony
________________________________
From: Valerie Bookwalter <bookwalt at jlab.org<mailto:bookwalt at jlab.org>>
Sent: Friday, August 4, 2023 8:55 AM
To: Kirk Davis <kdavis at jlab.org<mailto:kdavis at jlab.org>>
Cc: Tony Reilly <areilly at jlab.org<mailto:areilly at jlab.org>>; Valerie Bookwalter <bookwalt at jlab.org<mailto:bookwalt at jlab.org>>
Subject: FW: New Version added to Ready for Approvals on DocuShare ( https://jlabdoc.jlab.org/docushare/ )

Kirk,

I wanted to bring this to your attention. Adam has modified a traveler written by Danny.

I need to confirm that this was agreed to by both parties.

Please let me know if it is okay to proceed.

Thank You

Valerie Bookwalter

Jefferson Lab, ACCEL

SRF Operations

SROPS Software Systems Group

1-757-269-5802 (OFFICE - currently working offsite)

From: Pansophy <pansophy-bounces at mailman.jlab.org<mailto:pansophy-bounces at mailman.jlab.org>> On Behalf Of Adam Grabowski via Pansophy
Sent: Thursday, August 3, 2023 5:18 PM
To: SRF Pansophy (pansophy at jlab.org<mailto:pansophy at jlab.org>) <pansophy at jlab.org<mailto:pansophy at jlab.org>>
Subject: [Pansophy] Fw: New Version added to Ready for Approvals on DocuShare ( https://jlabdoc.jlab.org/docushare/ )

Pansophy,

I made the updates to the traveler; it is ready to re-route for approval.

Adam Grabowski

SRF Test Engineer, L2HE Project CAM

Jefferson Lab
600 KELVIN DR Suite # 8

Mail Stop 55H
Newport News, VA 23606

O: 757-269-7665

C: 360-320-7003

E: adamg at jlab.org<mailto:adamg at jlab.org>

________________________________

From: Allen Samuels <samuels at jlab.org<mailto:samuels at jlab.org>>
Sent: Thursday, August 3, 2023 5:16 PM
Subject: New Version added to Ready for Approvals on DocuShare ( https://jlabdoc.jlab.org/docushare/ )

The following Version was added by Adam Grabowski on Thursday, 3 August, 2023 05:16:19 PM EDT

[https://jlabdoc.jlab.org/docushare/images/small/word.png]

L2HE-CAV-HELV-LKCHK-R1.docx<https://jlabdoc.jlab.org/docushare/dsweb/Get/Document-274559/L2HE_CAV_HELV-LKCHK-R1_08032023.docx%20>
Collects data from post VTA qualification helium vessel leak checks

Appears In:  Ready for Approvals<https://jlabdoc.jlab.org/docushare/dsweb/View/Collection-49548>

forehand<https://jlabdoc.jlab.org/docushare/dsweb/Services/User-90>

07/21/2023

Props<https://jlabdoc.jlab.org/docushare/dsweb/Services/Document-274559>

This notification was generated by  Subscription-400<https://jlabdoc.jlab.org/docushare/dsweb/Services/Subscription-400>.
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