THE PROCESSES IN A FAST BUBBLE CHAMBER

Journal Article · Tue Mar 01 04:00:00 EST 1960 · Zeitschrift fuer Angewandte Physik (West Germany) Ceased publication

OSTI ID:4175334

Andelfinger, C

A bubble chamber operating with two distinct expansion systems is described. The slow system operates with an average time pressure variation of dp/dt = 7.5 x 10/sup 3/ atm/ sec. This is an order of magnitude usual in bubble chambers. With the fast system a dp/dt = 2.5 x 10/sup 5/ atm/sec is obtained. In the slow relaxation the dependence of the radiation sensitivity on the liquid pressure was measured at the moment of the irradiation. This shows that the radiation sensitivity in a pressure interval of 5 atm approximately 10% decreases from a maximum to zero. The fast expansion system operates on the principle of the shock tube. The relaxation was initiated by a rupturing metallic membrane. Rarefaction waves, which are propagated with the velocity of sound, arise. The velocity is of the order of 3 to 4 x 10/sup 4/ cm/sec. By pressure measurements at three distinct points of the chamber the time and spatial pattern of the pressure in the first bubble chamber was determined. The sensitive time is around 250 mu sec in comparison with 2.5 msec in the slow chamber. The investigation showed that the lifetime of the bubble nuclei in the non-expanded chamber is less than 10 mu sec. (tr-auth)

• Research Organization: Technische Hochschule, Munich
• NSA Number: NSA-14-012760
• OSTI ID: 4175334
• Journal Information: Zeitschrift fuer Angewandte Physik (West Germany) Ceased publication, Journal Name: Zeitschrift fuer Angewandte Physik (West Germany) Ceased publication Vol. Vol: 12; ISSN ZAPHA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

BUBBLE CHAMBERS
BUBBLES
DISTRIBUTION
ENGINEERING AND EQUIPMENT
EXPANSION
FAILURES
IRRADIATION
MEASURED VALUES
MEMBRANES
OPERATION
PRESSURE
RADIATIONS
RUPTURE
SENSITIVITY
SHOCK WAVES
VELOCITY