Bestimmung von Temperatur und Dichte eines Gleitfunkens aus der Bremsstrahlung im Infrarot
Bestimmung von Temperatur und Dichte eines Gleitfunkens aus der Bremsstrahlung im Infrarot
The absolute intensity of a vacuum sliding spark (length 2-10 cm, half cycle 0,8 $\mu$sec) has been measured in the spectral region between 0,4 and 3 $\mu$. From the long wavelength radiation emitted from an optically thick layer, one gets the temperature, fromthe short wavelength radiation emitted...
| Personal Name(s): | Bogen, P. |
|---|---|
| Conrads, H. / Rusbüldt, D. | |
| Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
| Imprint: |
Jülich
Kernforschungsanlage Jülich, Verlag
1965
|
| Physical Description: |
p. 240-8 |
| Document Type: |
Report Book |
| Research Program: |
Addenda |
| Series Title: |
Berichte der Kernforschungsanlage Jülich
311 |
| Link: |
OpenAccess OpenAccess |
| Publikationsportal JuSER |
|
The absolute intensity of a vacuum sliding spark (length 2-10 cm, half cycle 0,8 $\mu$sec) has been measured in the spectral region between 0,4 and 3 $\mu$. From the long wavelength radiation emitted from an optically thick layer, one gets the temperature, fromthe short wavelength radiation emitted from an optically thin layer, one obtains the density. Using polyethylene as an insulator we reached a temperature of 4 · 10$^{5}$ °K at electron densities of 8 · 10$^{18}$ cm$^{-3}$ and current densities of 1.2 · 10$^{6}$ A/cm$^{2}$. The temporal development of temperature and density has been determined. The maximum intensity at $\lambda=0.43 \mu$ was found to be 5 • 10$^{4}$ (7 · 10$^{10}$ W/cm$^{3}$ ster) as large as that of the positive crater of a properly driven carbon arc. At $\lambda= 3 \mu$ this same parameter turned out to be 300 times as large (5 · 10$^{7}$ W/cm$^{3}$ ster). |