SU785826A1

SU785826A1 - Device for measuring ionization energy loss of charged particles

Info

Publication number: SU785826A1
Application number: SU782637405A
Authority: SU
Inventors: Петр Семенович Ананьин; Игорь Владимирович Главанаков; Анатолий Павлович Каширин; Виктор Николаевич Стибунов
Original assignee: Научно-исследовательский институт ядерной физики при Томском политехническом институте им. С.М.Кирова
Priority date: 1978-07-03
Filing date: 1978-07-03
Publication date: 1980-12-07

Description

1one

. Изобретение относитс к области экспериментальной дерной фнзики и мо жет быть использовано при регистрации зар женных частиц и определении их ионизационных потерь.. The invention relates to the field of experimental nuclear physics and can be used to register charged particles and determine their ionization losses.

Известно устройство ал взмерени ионизационных потерь, состо щее из однозазорной искровой камеры, подключенной к высоковольтному генератору. К искровой камере также подключено устройство измерени длительности высоковольтного импульс.а у..A device for measuring ionization losses is known, consisting of a single-gap spark chamber connected to a high-voltage generator. A device for measuring the duration of a high-voltage impulse is also connected to the spark chamber.

В процессе работы устройства измер етс длительность высоковольтного импульса при развитии искры в искровой камере.During operation of the device, the duration of the high-voltage pulse is measured during the development of a spark in the spark chamber.

Получить более высокое разрешение можно путем увеличени числа зазоров искровой камеры, и соответственно числа каналов измерений, с .последующим усреднением результата измерений. Однако это приводит к СЛОЖНЫМ системам как в схеме высоковольтного питани , так и в измерительной цепи.A higher resolution can be obtained by increasing the number of gaps in the spark chamber, and accordingly the number of measurement channels, with a subsequent averaging of the measurement result. However, this leads to COMPLEX systems in both the high-voltage power supply circuit and the measuring circuit.

Известно также устройство дл измерени ионизированных потерь энергий зар женных частиц, содержащее многозазор ную искровую камеру и высоковольтный генератор 2.It is also known a device for measuring ionized energy losses of charged particles, comprising a multi-gap spark chamber and a high-voltage generator 2.

Его недостатками вл ютс сложность ВЫСОКОВОЛЬТНОГО питани и плохое разрешение по ионизационным потер м .Its disadvantages are the complexity of the HIGH-VOLTAGE power supply and the poor resolution of ionization losses.

Целью изобретени вл етс упро10 щение схемы и повышение точности измерений .The aim of the invention is to simplify the circuit and improve the measurement accuracy.

Поставленна цель достигаетс тем, что одноименные электроды искровой камеры соединены послецовательцо один The goal is achieved by the fact that the same electrodes of the spark chamber are connected after the end of one

ts к другим так, что образуют волновую ЛИНИЮ, к началу которой подключен генератор , а к концу - согласующее сопpol-ивление и устройство измерени длит льности импульса.ts to others so that they form a wave LINE, to the top of which the generator is connected, and to the end - matching matching and a device for measuring the pulse duration.

2020

Claims

The drawing shows a schematic diagram of the device, where 1 is a multi-gap spark chamber, 2 is a high-voltage generator, 3 is a matching resistor, and 4 is a device for measuring the pulse duration. The device works as follows. In the initial state, the circuit has no voltages and currents. After the passage of the charged particle through all the gaps of the spark chamber 1 of the generator. High voltage pulses 2 generates a high voltage pulse and delivers it to the first gap of the spark chamber. The duration of the high-voltage pulse produced by the generator is longer than the formation of a spark in the spark chamber, therefore, in the first gap of the multi-gap spark chamber, a discharge develops along the particle track, which shortens the duration of the high-voltage pulse. Due to the fact that the electrodes of the spark chamber are connected to a wave line, the voltage pulse propagates further along all gaps of the spark chamber. In this case, if in any gap the time of formation of the spark is less than the duration of the shortened impulse, then the spark is broken in it and the impulse is shortened additionally. Thus, the duration of the pulse emitted at matching resistance 3 is determined by the shortest spark generation time from all gaps. The pulse duration is measured by a pulse width measuring device 4. The connection of the electrodes of the multi gap spark chamber into a wave line makes it possible to significantly simplify the high voltage supply circuit compared to the prototype, since in this case a single-channel high-voltage pulse generator is required. An improvement in resolution, as compared with the prototype, is achieved by directly measuring the duration of the high voltage pulse. Apparatus of the Invention A device for measuring ionization losses of energies of charged particles, containing a multi-gap spark chamber, and a high-voltage generator, characterized in that, in order to simplify the circuit and improve measurement accuracy, the spark-chamber electrodes of the same name are connected in series with one another. the line to the beginning of which the generator is connected, and to the end - the terminating resistance and the device for measuring the pulse duration. Sources of information taken into account in the examination 1. USSR author's certificate in application M 2501438/25 of 06.26.77. 2.n.z.OeBapeg kise. 3ns-ti ain (3,144 C-1977), p.447-.451 (prototype).

J