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Time and Frequency

H-maser glow

H-maser_glow_20160114

View from the bottom, looking up towards the H-bulb (or dissociator?) in one of our H-masers at work. Any ideas on what the spiral is?

There's a cross-section of a typical H-maser at USNO: http://tycho.usno.navy.mil/maser.html

2 replies on “H-maser glow”

I would guess the spiral is the rf antenna/coil wrapped around the dissociator tube. 5-10 watts of rf power at approximately 100Mhz dissociates the molecular hydrogen into the atomic hydrogen needed - and gives off that gorgeous pink glow in the process.

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