Fusion Message Board

In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.

Subject: slightly OT: Cold Cathode Ion Gauge
Date: Jan 16, 9:20 pm
Poster: Pierce Nichols

On Jan 16, 9:20 pm, Pierce Nichols wrote:

Can any of the vacuum practioners here tell me anything about cold cathode discharge gauges? They seem to be a type of ion gauge, and are listed on the duniway site as being good from 10^-2 torr down to 10^-10 torr. They are fantastically cheaper than an ion gauge -- a package including both tube and controller for the cold cathode gauge is $900, while an ion controller alone is $1600. Thoughts?