Angled-End Quartz Gas Cell: Defining the Windows and Fill Stem

This form is different from a liquid flow cell with two assigned fluid connections. The stem's role, the window requirements and the supply state must be discussed explicitly rather than inferred from a clear tubular appearance.

In this guide: Configuration · Design comparison · Describe the optical ends as interfaces · Give the stem a stated preparation task · Keep nominal path and outside length separate · If the stem conflicts with the apparatus · Enquiry

The configuration discussed here

What changes from the simpler form?

Angled optical ends and a fill stem add distinct interfaces to a tubular gas-cell form. The end geometry, body support and preparation connection need separate acceptance references.

Describe the optical ends as interfaces

Show the intended optical direction and the regions that must remain clear. The angled appearance does not establish a measured window angle, parallelism, surface quality or optical loss. Specify any critical optical requirement on the drawing.

The support also needs a defined contact region. Include the body and stem envelope so the holder does not block an optical face or place an unintended load on the projecting stem.

Give the stem a stated preparation task

Identify whether the stem is needed for a preparation connection, a particular fill operation or another defined process. Its visible presence does not establish a supplied valve, removable seal or completed permanent closure.

State the required contents and supporting evidence. The reference does not identify a gas fill, alkali metal, purity, internal pressure or leakage qualification.

Keep nominal path and outside length separate

The 60 mm nominal path and 62 mm body-length mark are not interchangeable. One describes the listed optical requirement, while the other is a physical envelope reference. The angled geometry makes it especially important to identify the endpoints of dimensions.

For a replacement, provide the existing cell and support drawings if possible. A matching outside length does not prove that the optical faces meet the same conditions.

If the stem conflicts with the apparatus

A possible custom request is to retain the optical-end arrangement while reviewing the stem position for a restricted enclosure. Mark the end geometry to keep, the available stem space and the proposed support contacts.

MQ can review the proposed design with the filling, closure and operating requirements. Any optical or containment check needs agreed conditions and records; the drawing is not itself a qualification.

Structure reference and specification points

Download the structure reference (PDF)

Is the gas cell supplied filled with a particular material?

No fill state or contents are established here. Specify the required preparation, contents, closure and documents, and confirm the offered supply state before ordering.