Zobrazeno 1 - 10
of 26
pro vyhledávání: '"R. N. Peacock"'
Autor:
R. N. Peacock
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 20:1202-1204
The ion current, i+, in an ionization gauge is given by the equation i+=Ki−P where K is a gas dependent gauge constant, i− is the electron current, and P is the pressure. Values of K for nitrogen for gauges designed for use at ultrahigh vacuum an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9f0a6dc15ee160db1b0cf7dab9f2cd5
https://doi.org/10.1116/1.1479358
https://doi.org/10.1116/1.1479358
Autor:
R. N. Peacock
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 11:1627-1630
Safety or health hazards exist with some common types of vacuum gauging including mercury manometers, thermal conductivity gauges, and ionization gauges. Mercury filled manometers and McLeod gauges have been replaced by other gauging in most applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66f47348704af0c7683730062774a3a5
https://doi.org/10.1116/1.578469
https://doi.org/10.1116/1.578469
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 9:1977-1985
Ionization gauges are commonly used for pressure measurement from the lowest achievable pressures to 10−2 Torr. Two types exist: In the hot cathode gauge (HCG) the source of the ionizing electrons is a thermionic cathode. In the cold cathode gauge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f0f01c97358701a6c21c77505e5d5ae
https://doi.org/10.1116/1.577439
https://doi.org/10.1116/1.577439
Autor:
R. N. Peacock, N. T. Peacock
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 8:3341-3344
Since the accurate range of the spinning rotor gauge (SRG) does not extend below 10−4 Pa, constant sensitivity of high vacuum gauges for at least one decade above this value is important for their calibration when using an SRG. Two pairs of nude Ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b49d302eb1390f0acb72df729d8301d6
https://doi.org/10.1116/1.576547
https://doi.org/10.1116/1.576547
Autor:
R. N. Peacock, N. T. Peacock
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 8:2806-2809
Cold cathode discharge gauges use crossed electric and magnetic fields to trap electrons and thus obtain a long ionizing path. For many inverted magnetron type gauges, the magnet is cylindrical, located concentrically about the discharge cell, and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7eaaf41ed50da690f7701679a7d2067b
https://doi.org/10.1116/1.576629
https://doi.org/10.1116/1.576629
Autor:
N.T. Peacock, R. N. Peacock
Publikováno v:
Vacuum. 41:2139
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3c9e84ea9e2361e3366023c007945a
https://doi.org/10.1016/0042-207x(90)94202-2
https://doi.org/10.1016/0042-207x(90)94202-2
Autor:
N. T. Peacock, R. N. Peacock
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 6:1141-1144
Single feedthrough cold cathode ionization gauges often suffer from spurious currents due to insulator leakage and field emission which mask the small pressure dependent ionization currents. This paper describes an inverted magnetron gauge tube desig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d307bc92bbfe02c9e6912c9a44fd43
https://doi.org/10.1116/1.575662
https://doi.org/10.1116/1.575662
Autor:
R. N. Peacock
Publikováno v:
Journal of Vacuum Science and Technology. 17:330-336
Proper selection of polymer seal materials must consider restraints imposed by the application and the properties of available materials. Data and concepts presented enable the working vacuum technician to make an educated selection considering chemi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36106e58932851ca937cfdc8e0f2cbb
https://doi.org/10.1116/1.570380
https://doi.org/10.1116/1.570380
Publikováno v:
Physical Review. 188:2092-2097
We have performed a geophysical search for fractionally charged particles in seawater and rock samples. The samples were run through cation exchange columns to separate most of the material from particles of charge $\ifmmode\pm\else\textpm\fi{}\frac{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a36cb789377d9d6e9a20201a4432562a
https://doi.org/10.1103/physrev.188.2092
https://doi.org/10.1103/physrev.188.2092
Publikováno v:
Zeitschrift f�r Physik. 158:26-34
Es wird eine Methode zur Messung magnetischer Felder im Innern von supraleitenden Substanzen beschrieben. Die FeldstarkeH(x) an der Stellex innerhalb eines Supraleiters wird dadurch bestimmt, das man die Drehung der Winkelkorrelation einerγ-γ-Kaska
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7231f125a0972975ac4396863284ed7c
https://doi.org/10.1007/bf01325787
https://doi.org/10.1007/bf01325787