On selected problems in the field of proportional counters

Bambynek, W.

doi:10.1016/0029-554x(73)90782-9

Cited by 24 publications

(9 citation statements)

References 44 publications

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“…This was to make certain there was no layer of counting gas between the celluloid foils used to stop the Auger electrons. Even a small layer of gas at high pressure can seriously effect the X-ray count rate [3,8]. To obtain the total 4~ emission rate the counts from the two halves of the counter were added.…”

Section: Measurement Of the K X-ray Emission Rate Nkxmentioning

confidence: 99%

The electron capture decay of85Sr-measurements of theK X-Ray emission probability, half-life, and decay scheme

Thomas

1978

Z Physik A

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The K X-ray emission probability Prmr for the decay of 8SSr has been measured to be 0.5866 with a standard error of 0.05 % and a systematic uncertainty of 0.65 %. The X-ray emission and total disintegration rates were measured by 4~z proportional counting in a pressurized detector and by 47c(A, X)-), coincidence counting respectively. In addition, a high-pressure ionization chamber has been used to measure the 85Sr half-life giving a value of 64.84 d with a standard error of 0.01% and a systematic uncertainty of 0.02 %. An investigation of the decay scheme was performed which confirmed the presence of a weak decay branch to a state at 869 keV in the 85Rb daughter nucleus. A value of (1.25 _+0.05) x 10 .4 was measured for the intensity of the 869 keV ),-ray relative to the predominant 514 keV 7-ray.

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Section: Measurement Of the K X-ray Emission Rate Nkxmentioning

confidence: 99%

The electron capture decay of85Sr-measurements of theK X-Ray emission probability, half-life, and decay scheme

Thomas

1978

Z Physik A

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“…: * -p : : x, Following are mass spectra of the numbered peaks (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) of ..…”

Section: ĩ···+H : : H ··~~~~~mentioning

confidence: 99%

“…Following are mass spectra of the numbered peaks (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) of ... Following are mass spectra of the numbered peaks (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11) of Table 3.13 and Fig.…”

Section: ĩ···+H : : H ··~~~~~mentioning

confidence: 99%

“…Permeation tubes were initially proposed by 0' Keeffe and Ortman [ 8] as a method of preparing primary standards for ..…”

Section: Permeation Devicementioning

confidence: 99%

“…To prevent this failure mode, a quenching gas is added. The quenching gas is 8 usually a polyatomic molecule, typically a hydrocarbon, so chosen because it has many degrees of freedom and therefore can absorb energy efficiently. Simple theory of processes occurring in the anode-cathode gap that demonstrates the need for quenching gases [9].…”

Section: Quenching Gasesmentioning

confidence: 99%

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Plasma chemistry in wire chambers

Wise¹

1990

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Precise measurement of theX K emission rate following the electron capture-decay of54Mn-fluorescence yield ? K of Cr

et al. 1978

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This determination was made using the electron capture decay of 54Mn. Two methods were employed to measure the K X-ray emission rate: by means of a pressurized 4re proportional counter with the gas at 1.5 MPa, and by means of a medium geometry-defined solid angle counter. The final result was 0~k = 0.2901_+ 0.003. Special care was taken in determining the corrections, some of which do not appear to have been allowed for so far. It is noteworthy that additional corrections, each about + 3 %, had to be applied to the results obtained with each of the two methods. Thus there remains complete agreement between them, but at a higher value of (ok than those appearing in recent publications.

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On selected problems in the field of proportional counters

Cited by 24 publications

References 44 publications

The electron capture decay of85Sr-measurements of theK X-Ray emission probability, half-life, and decay scheme

The electron capture decay of85Sr-measurements of theK X-Ray emission probability, half-life, and decay scheme

Plasma chemistry in wire chambers

Precise measurement of theX K emission rate following the electron capture-decay of54Mn-fluorescence yield ? K of Cr

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