Measurement of electron clouds in large accelerators by microwave dispersion.

Clouds of low energy electrons in the vacuum beam pipes of accelerators of positively charged particle beams present a serious limitation for operation at high currents. Furthermore, it is difficult to probe their density over substantial lengths of the beam pipe. We have developed a novel technique to directly measure the electron cloud density via the phase shift induced in a TE wave transmitted over a section of the accelerator and used it to measure the average electron cloud density over a 50 m section in the positron ring of the PEP-II collider at the Stanford Linear Accelerator Center.

[Therapeutic endoscopy in the complex treatment of patients with chronic gastroduodenal ulcer].

Under the ambulatory treatment there were 300 patients: 120 of them had gastric ulcers and 180 had ulcers of the duodenum. The immediate and long-term results of the treatment were followed-up in 243 patients. The analysis has shown that Solcoseryl and film-forming glue "Statizol" included in the complex of general therapy of chronic ulcers of the stomach and duodenum by means of a local application (through the endoscope) made the average terms of healing 2 times shorter as compared with the routine treatment of ulcers and considerably reduced recidivation of the disease (in the main group recurrences took place in 19-10%, in the control group--in 36-42.

[Use of Statizol film-forming glue for treating gastric and duodenal ulcers].

Patients with chronic gastroduodenal ulcers (210) and gastric ulcers (256) were treated in the out-patient clinic. The ulcerous defect of the mucous membrane was covered by the aerosolic film-making glue "Statizol" through a fibroendoscope (about 10 applications of the drug). The method was used in 110 patients after polypectomy in addition to the routine therapeutic treatment given to all the patients.