Anonymous ID: 000000 Nov. 27, 2019, 5:48 a.m. No.7382936   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

The Beam Experiment Aboard Rocket (BEAR) experiment tested a neutral particle beam accelerator during a suborbital rocket flight. The Beam Experiment Aboard Rocket accelerator is the major component of an experiment designed to demonstrate the operation of an ion accelerator in space and to characterize the exoatmospheric propagation of a neutral particle beam. It is designed to produce a 10-mA (equivalent), 1-MeV, neutral hydrogen beam in 50-ยตs pulses at 5 Hz. The accelerator consists of a 30-kV, H- injector, a 1-MeV radiofrequency quadrupole, two 425-MHz RF amplifiers, a gas-cell neutralizer, beam optics, a vacuum system, diagnostics, and controls. The design has been constrained by the need for a light-weight rugged system that would operate autonomously.

 

On July 13, 1989 the Beam experiment Aboard Rocket (BEAR) linear accelerator was successfully launched and operated in space. The flight demonstrated that a neutral hydrogen beam could be successfully propagated in an exoatmospheric environment. The accelerato was the result of an extensive collaboration between Los Alamos National Laboratory and industrial partner. The design was strongly constrained by the need for a lightweight rugged system that would survive the rigors of launch and operate autonomously. Following the fight the Beam Experiment Aboard Rocket (BEAR) payload was recovered with minimal damage via parachute after an 11-minute flight to a maximum altitude of 195 km.

Anonymous ID: 000000 Dec. 1, 2019, 5:23 a.m. No.7405127   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

Soโ€ฆit looks like USMCA was signed on the 30th, but the other day it said it was signed in Septemberโ€ฆ

 

https://ustr.gov/trade-agreements/free-trade-agreements/united-states-mexico-canada-agreement/agreement-between

 

Who read this?

Why is there no pdf available to download?

Why is there no contact email or contact form to ask for pdf, or ask about anything else?

Who signed this?

 

ERROR MESSAGE: Sorry. Tor users can't upload files on this board.