The Effect of Single and Multiple Doses of Co 60 Gamma-Radiation and Fission Neutron Radiation on the Incorporation of Fe 59 into the Rat Erythropoietic System

1959 ◽  
Vol 10 (2) ◽  
pp. 148 ◽  
Author(s):  
W. A. Rambach ◽  
J. A. D. Cooper ◽  
H. L. Alt ◽  
H. H. Vogel ◽  
J. W. Clark ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Neutron Radiation ◽  
Fission Neutron ◽  
Single And Multiple Doses ◽  
Multiple Doses ◽  
Erythropoietic System

Neutron Radiation Effects on Lubricants and O-Rings for Target and Accelerator Applications

2021 ◽  
Vol 1024 ◽  
pp. 127-133
Author(s):  
Matteo Ferrari ◽  
Aldo Zenoni ◽  
Yong Joong Lee ◽  
Alberto Andrighetto
Keyword(s):  
Gamma Radiation ◽  
Radiation Damage ◽  
Radiation Effects ◽  
Nuclear Reactor ◽  
Neutron Radiation ◽  
Radioactive Isotopes ◽  
Structural Level ◽  
Radiation Resistant ◽  
Under Construction ◽  
Neutron Radiation Effects

Lubricants and O-rings are necessarily used for the construction of many accelerator-driven facilities as spallation sources or facilities for the production of radioactive isotopes. During operation, such component will absorb high doses of mixed neutron and gamma radiation, that can degrade their mechanical and structural properties. Experimental radiation damage tests of these components are mandatory for the construction of the facility. Methodologies for irradiation in nuclear reactor mixed fields and post-irradiation examination of lubricating oils, greases and O-rings were developed and are here presented. Samples were characterized with standard mechanical and physical-chemical tests. Parametric studies on the dose rate effects have been performed on O-rings. A case studies for a specific O-ring application in a gate valve has been developed. Some of the tested samples showed a dramatic change of their properties with dose, while others remain stable. Results were collected on nine commercial greases, on one oil and on four commercial elastomeric O-rings. The most radiation resistant among the selected products are now considered for application in facilities under construction. The main mechanisms of neutron and gamma radiation damage on these polymers were investigated at the mechanical and structural level.

scholarly journals Safety, Tolerability, and Pharmacokinetic Properties of Intravenous Delafloxacin After Single and Multiple Doses in Healthy Volunteers

2016 ◽  
Vol 38 (1) ◽  
pp. 53-65 ◽  
Author(s):  
Randall Hoover ◽  
Thomas Hunt ◽  
Michael Benedict ◽  
Susan K. Paulson ◽  
Laura Lawrence ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Single And Multiple Doses ◽  
Multiple Doses ◽  
Pharmacokinetic Properties

Pharmacodynamic Effects of Single and Multiple Doses of Empagliflozin in Patients With Type 2 Diabetes

2016 ◽  
Vol 38 (10) ◽  
pp. 2265-2276 ◽  
Author(s):  
Tim Heise ◽  
Jens Jordan ◽  
Christoph Wanner ◽  
Martina Heer ◽  
Sreeraj Macha ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Pharmacodynamic Effects ◽  
Single And Multiple Doses ◽  
Multiple Doses

Oral clindamycin disposition after single and multiple doses in normal cats

1989 ◽  
Vol 12 (2) ◽  
pp. 209-216 ◽  
Author(s):  
S. ANTHONY BROWN ◽  
T. M. DIERINGER ◽  
R. P. HUNTER ◽  
M.J. ZAYA
Keyword(s):  
Single And Multiple Doses ◽  
Multiple Doses
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