The conversion of para to orthohydrogen in a gamma-ray and neutron radiation field

✍ Scribed by J.W. Conant; F.J. Edeskuty; J.E. Huston; F.V. Thome

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 498 KB
• Volume: 15
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(75)90161-7

✦ Synopsis

The radiation-induced conversion of para to orthohydrogen was investigated at pressures between 1 to 15 x 106 Pa at three temperatures: 77 K (LN2), 200 K (dry ice), and 300 K (ambient). The radiation dose levels were studied: gamma rays only at 8 x 106 rads and a combination of 5 x 1012 n mm "2, E > I MeV, plus gamma rays at 8 x 105 rads. The conversion at LN 2 temperature was nearly zero in all cases.