A single stage magnetically focused image converter, having a nickel mesh at its first accelerati... more A single stage magnetically focused image converter, having a nickel mesh at its first accelerating electrode, was constructed. An S-11 post-oxidized photocathode was processed in this image tube. The imaging properties of this type of image converter have been studied under static and pulsed conditions. The output image resolution was studied as a function of the pulse duration or the
ABSTRACT Quantum Size Effects (Q.S.E.) in InSb films have been detected by different experimental... more ABSTRACT Quantum Size Effects (Q.S.E.) in InSb films have been detected by different experimental procedures.The work function dependence on thickness obtained from photoelectric emission threshold measurements is compared with prior results obtained with the retarding potential method. With both methods, the measured work function values are comparable. They are less than the corresponding bulk values, conforming to current theoretical predictions.The interband energy gap has been determined from photoelectric absorption band edge data: its value differs with respect to the bulk one, by the location of the first allowed energy subband in the conduction band due to the presence of Q.S.E.Some evidence is given for absence of a band structure dependence on Q.S.E.
Summary We report on the cooling at liquid-helium temperature of our 2270 kg 5056 Al bar at CERN... more Summary We report on the cooling at liquid-helium temperature of our 2270 kg 5056 Al bar at CERN. The liquid-helium container had been filled up to 1500 liters ensuring to keep the antenna cold for more than one month. The antenna is equipped with a resonant capacitive transducer operating at constant electrical charge with a FET low-noise amplifier. The transducer is
A method to extract useful data from the raw data obtained from a Nike-Tomahawk sounding rocket o... more A method to extract useful data from the raw data obtained from a Nike-Tomahawk sounding rocket on the occasion of a solar eclipse is presented. Due to a malfunction, the counting in the channeltron spuriously increased. The results on e.m. radiation from the earth plasmasphere at values of 304, 584, 820, 920, 1026, and 1216 A are given in graphical
... We describe the construc-tion detail of the calorimeter and the experimental mea surements on... more ... We describe the construc-tion detail of the calorimeter and the experimental mea surements on several prototypes with radioactive sour-ces and minimum ionizing particles ... The tubes of inner diameter 5 mm were cut to size individually on a lathe and then were placed in a mold ...
A single stage magnetically focused image converter, having a nickel mesh at its first accelerati... more A single stage magnetically focused image converter, having a nickel mesh at its first accelerating electrode, was constructed. An S-11 post-oxidized photocathode was processed in this image tube. The imaging properties of this type of image converter have been studied under static and pulsed conditions. The output image resolution was studied as a function of the pulse duration or the
ABSTRACT Quantum Size Effects (Q.S.E.) in InSb films have been detected by different experimental... more ABSTRACT Quantum Size Effects (Q.S.E.) in InSb films have been detected by different experimental procedures.The work function dependence on thickness obtained from photoelectric emission threshold measurements is compared with prior results obtained with the retarding potential method. With both methods, the measured work function values are comparable. They are less than the corresponding bulk values, conforming to current theoretical predictions.The interband energy gap has been determined from photoelectric absorption band edge data: its value differs with respect to the bulk one, by the location of the first allowed energy subband in the conduction band due to the presence of Q.S.E.Some evidence is given for absence of a band structure dependence on Q.S.E.
Summary We report on the cooling at liquid-helium temperature of our 2270 kg 5056 Al bar at CERN... more Summary We report on the cooling at liquid-helium temperature of our 2270 kg 5056 Al bar at CERN. The liquid-helium container had been filled up to 1500 liters ensuring to keep the antenna cold for more than one month. The antenna is equipped with a resonant capacitive transducer operating at constant electrical charge with a FET low-noise amplifier. The transducer is
A method to extract useful data from the raw data obtained from a Nike-Tomahawk sounding rocket o... more A method to extract useful data from the raw data obtained from a Nike-Tomahawk sounding rocket on the occasion of a solar eclipse is presented. Due to a malfunction, the counting in the channeltron spuriously increased. The results on e.m. radiation from the earth plasmasphere at values of 304, 584, 820, 920, 1026, and 1216 A are given in graphical
... We describe the construc-tion detail of the calorimeter and the experimental mea surements on... more ... We describe the construc-tion detail of the calorimeter and the experimental mea surements on several prototypes with radioactive sour-ces and minimum ionizing particles ... The tubes of inner diameter 5 mm were cut to size individually on a lathe and then were placed in a mold ...
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