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]. / Lechebnaia éndoskopiia v kompleksnoi terapii bol'nykh s khronicheskoi gastroduodenal'noi iazvoi.

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 36-42.4% of the cases). Most effective was the complex treatment including the application of Solcoseryl and film-forming glue "Statizol" simultaneously.

[Use of Statizol film-forming glue for treating gastric and duodenal ulcers]. / Primenenie plenkoobrazuiushchego kleia "Statizol'" pri lechenii iazv zheludka i dvenadtsatiperstnoi kishki.

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. The application of the film-making glue "Statizol" in the complex therapy of peptic ulcers was shown to shorten the period of healing the ulcerous defects, to give less amount of recurrent ulcer diseases (not more than 14.5%) and to be a prophylactic measure against bleedings after polypectomy.