Calibration of nude-type ionization gauges by spinning rotor gauge.

Future prospects of rotor spinning

Labour productivity has been continuously increasing since the days of spinningjenny to the modern day roto r frames. To visualize the spinning industry in the year 2000, the past and the present technologica l changes have been analyzed so as to assess their overall impact in terms of labour complement.. material handling, required operative skill and automation. The automation in textile indu...

Hot vs. Cold Ionization Gauges

Every modern high vacuum and ultrahigh vacuum system relies on some form of ionization gauge for pressure measurements under 10 Torr. There are currently two competing ionization gauge technologies to choose from the hot cathode gauge (HCG) and the cold cathode gauge (CCG). This application note is designed to help vacuum users choose between the two competing ionization technologies. Each gaug...

Predicting the Hairiness of Cotton Rotor Spinning Yarns by Artificial Intelligence

Calibration of iridium-192 source by ionization chamber for high dose rate brachytherapy

Background: The effectiveness and safety of brachytherapy treatment is mainly concerned with the calibration of sources and their traceability to internationally accepted Standards. Secondary Standard Dosimetry Laboratory (SSDL) does not offer calibration of ionization chambers with gamma-ray spectrum of high dose rate source 192Ir . This work has been carried out to calibrate the high dose rat...

Design and Simulation of Hot Cathode Ionization Vacuum Gauge with no X-Ray Limitations

In this paper, the MEMS type ionization gauge with no X-Ray limitations has been presented. Having the dimensions of 2.4 mm× 0.8mm × 1.4 mm, the designed gauge is 9000 times smaller than the conventional type and can operate in HV and UHV pressures up to 5×10-9 torr. Operating at the temperature of 750°C, the cathode of proposed gauge is implemented using nickel and works in a way in...