SU416531A1 - - Google Patents

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Publication number
SU416531A1
SU416531A1 SU1762967A SU1762967A SU416531A1 SU 416531 A1 SU416531 A1 SU 416531A1 SU 1762967 A SU1762967 A SU 1762967A SU 1762967 A SU1762967 A SU 1762967A SU 416531 A1 SU416531 A1 SU 416531A1
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USSR - Soviet Union
Prior art keywords
helium
screen
cryostat
time
radiation
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SU1762967A
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Russian (ru)
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Priority to SU1762967A priority Critical patent/SU416531A1/ru
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Publication of SU416531A1 publication Critical patent/SU416531A1/ru

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Description

1one

Изобретение относитс  к технике низких температур и касаетс  конструкции криостатов , используемых дл  исследований при глубоком охлаждении, например при температурах жидкого гели .The invention relates to a low temperature technique and concerns the construction of cryostats used for research with deep cooling, for example at liquid gel temperatures.

Одной из важных технических характеристик сосудов дл  жидкого гели   вл етс  врем  установлени  станионарного режима, при котором скорость испарени  гели  и те.мпература радиационных экранов с течением времени не измен ютс .One of the important technical characteristics of vessels for liquid gels is the establishment time of the stationary mode, at which the rate of evaporation of the gels and the temperature of the radiation shields do not change over time.

Известен сосуд большой емкости с экранновакуумной изол цией и с экраном, охлаждаемым парами гели , в котором этот иернод составл ет двое суток. В сосудах малой емкости , криостатах с высоковакуумной изол цией и радиациониььми экранами, охлаждаемыми через трубку подвеса испар юи1имс  гелием, врем  выхода на стационарный режим составл ет три - четыре часа.A high-capacity vessel with screen-vacuum insulation and a screen cooled by gel vapors, in which this heterod is two days, is known. In vessels of small capacity, cryostats with high vacuum insulation and radiation shields cooled through an evaporative suspension tube with helium, the time to reach the stationary mode is three to four hours.

Большое вре.м  усгановлени  стационарного теплового режима  вл етс  иедостатком этих устройств, так как при этом уменьшаетс  продолжительность их работы при разовой заливке и увеличиваетс  врем  начала нроведенн  измерений, когда установитс  стабильна  температура образнов.A large time of stabilization of the stationary thermal regime is a disadvantage of these devices, since this reduces the duration of their work with a one-time fill and increases the start time of the measured measurements, when the stable temperature of the samples is established.

С нелыо уирошенил устройства крностата и сокращени  времени стабилизации темнературы образцов, в вакуумном пространстве The device has been used to reduce the temperature of the specimens to stabilize, in vacuum space.

криостата вынолнен подвижный тенловой мост, соедин юнин гелиевую емкость и радиационный экран.the cryostat is made of a movable tenlov bridge, a helium capacitance compound, and a radiation screen.

Иа чертеже представлена схема предлагаемого криостата.Ia the drawing shows the scheme of the proposed cryostat.

стройство содержит гелиевую емкость 1, трубку 2 подвеса, наружный кожух 3, радиационный экран 4 и тепловой лгост 5.The device contains a helium tank 1, a suspension tube 2, an outer casing 3, a radiation shield 4 and a thermal bridge 5.

Гелпева  емкость 1 криостата подвеиюна на заливной трубке 2 к наружному кожуху 3. Раднационный экран 4 нрикреплен к трубке на заданной высоте и имеет определенную температуру. Между радиациоиным экраном н гелиевой емкостью установлен тепловой мост 5.The gelpay tank 1 of the cryostat is poured on the filler tube 2 to the outer casing 3. The radnaational screen 4 is attached to the tube at a given height and has a certain temperature. A thermal bridge 5 is installed between the radiation screen and helium tank.

Иеред заливкой криостата жидким гелием ПОДВИЖНЫ теиловой мост соедин ет гел евую емкость 1 радианио) экра 4. Заливаемый гели охлалчдает гелиеву о емкость и одновреме И о через мост 5 радиац 1он 1)й экран. Стацио1 ар ый режим криостата o ipeде .т етс  временем охлажден 1  до расчетной темиературы. Ио дост 1жении экра ом этой температуры тепловой мост разл 1кают электрическ, механическ или с помош ,ью биметаллической нластн ы. криостат сразу же после заливки работает в режиме, близком к стаиионарному .By pouring a cryostat with liquid helium, a mobile bridge connects the helium capacity of 1 radiae of screen 4. The helium filled in helium is cooled to the helium capacitance and simultaneously with the 5th radiation radius of the 1) screen. The stationary mode of the cryostat is o ipede. Time is cooled 1 to the calculated temperature. This screen is accessible by a thermal bridge that is broken electrically, mechanically or with help from a bimetallic layer. the cryostat immediately after pouring works in the mode close to the stationary one.

П p с л : о т и ; о и р ,: i-f ii ii и Криостат дл  Kii;u;()i-(i , i-4:;i,iiP p with l: about t and; o and p: i-f ii ii and cryostat for Kii; u; () i- (i, i-4:; i, ii

(;Mi-a):lb, ()l pv l-;cilll УК) lj;i,4;;.lli;i;;l)llLm (; Mi-a): lb, () l pv l-; cilll CC) lj; i, 4 ;;. Lli; i ;; l) llLm

Ii 3aiqjeii,ieiiiiyi;j iia () v. ,.K куумпроваинол кожухи. (11 I л 1 a i 1Ii 3aiqjeii, ieiiiiyi; j iia () v. , .K cuumprovainol covers. (11 I l 1 a i 1

i.Li.L

SU1762967A 1972-03-21 1972-03-21 SU416531A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1762967A SU416531A1 (en) 1972-03-21 1972-03-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1762967A SU416531A1 (en) 1972-03-21 1972-03-21

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SU416531A1 true SU416531A1 (en) 1974-02-25

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SU (1) SU416531A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457043A (en) * 2008-01-31 2009-08-05 Siemens Magnet Technology Ltd Apparatus for improved precooling of a thermal radiation shield in a cryostat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457043A (en) * 2008-01-31 2009-08-05 Siemens Magnet Technology Ltd Apparatus for improved precooling of a thermal radiation shield in a cryostat
GB2457043B (en) * 2008-01-31 2010-01-06 Siemens Magnet Technology Ltd Apparatus for improved precoooling of a thermal radiation shield in a cryostat

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