Further Studies of the X-ray Standard Ionization Chamber Diaphragm System

Taylor, Lauriston S.; Singer, George

doi:10.1148/17.1.104

Cited by 3 publications

(9 citation statements)

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“…I shall give the whole matter more thought but should like your reactions to my comments thus far. (Lauritsen to Taylor) October 18,1937 Many thanks for your letter of October 7th.…”

Section: Lstmentioning

confidence: 97%

“…As in the construction of the early Fricke-Glasser clinical dosimeter (see photo No. 1 and p. 18), this problem was overcome by stringing a wire through a 1/2-inch aluminum tube with suitable amber end-fittings and then filling the tube with ceresin wax. These could be interconnected using special "knuckle joints" which allowed bends in the electrometer line.…”

Section: )mentioning

confidence: 99%

“…The electrode assembly was mounted so that it could slide back from the diaphragm to determine air corrections, which were obtained by measurements at different positions of the electrode within the containing box (see photo No. 18).…”

Section: )mentioning

confidence: 99%

“…June 18,1946 To: Members of Board of Chancellors, American College of Radiology Officers of the American Roentgen Ray Society and Radiological Society of North America Subject: Participation of Physicists in Radiology 1.…”

Section: Lstmentioning

confidence: 99%

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X-Ray measurements and protection, 1913-1964

Taylor¹,

Tilley²

1981

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“…I shall give the whole matter more thought but should like your reactions to my comments thus far. (Lauritsen to Taylor) October 18,1937 Many thanks for your letter of October 7th.…”

Section: Lstmentioning

confidence: 97%

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Section: Lstmentioning

confidence: 99%

See 2 more Smart Citations

X-Ray measurements and protection, 1913-1964

Taylor¹,

Tilley²

1981

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“…Air-absorption coefficients for several radiation qualities are listed in table 2. These may be compared with similar determinations made at lower voltages [37]. The application of air-absorption corrections becomes particularly important at elevated chamber pressures.…”

Section: Scattering From Diaphragm and Pressure-chamber Endsmentioning

confidence: 97%

Measurement of supervoltage x-rays with the free-air ionization chamber

Taylor¹,

Singer²,

Charlton³

1938

J. RES. NATL. BUR. STAN.

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A free-air ionization chamber for the measurement of supervoltage X-rays is described. It is built on the guarded-field principle and of such size as to permit measurements for X-ray excitation voltages from 150 to 350 kv at atmospheric pressure and 200 kv upward at elevated pressures. The electrode system is contained in a pressure cylinder of such size as to give an equivalent plate spacing of 4 m at a pressure of 10 atm. The chamber characteristics have been studied in the range of 200 to 400 kv. The most important finding is the required increase in plate separation at the higher voltages. While reasonable, this is at variance with the findings of other workers. From the m easurement of the plate separation for full electronic equilibrium, electron ranges may be obtained.To carry out these measurements it was necessary to design and construct a high-voltage plant capable of extreme steadiness of operation. This was accomplished with a four-stage rectifier having valves operated on a single pumping system. Potentials were carefully distributed through the system with the result that the voltage could be measured and controlled within ± ~ percent, which figure also represents the variation in tube output.The X-ray tube is of the simple four-stage type, made up of Pyrex-glass cylinders. By means of an insulated target, only the target current is measured.

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A Study of Cones or Other Collimating Devices Used in Roentgen Therapy

Quimby¹,

Marinelli²

1936

Radiology

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Further Studies of the X-ray Standard Ionization Chamber Diaphragm System

Cited by 3 publications

References 0 publications

X-Ray measurements and protection, 1913-1964

X-Ray measurements and protection, 1913-1964

Measurement of supervoltage x-rays with the free-air ionization chamber

A Study of Cones or Other Collimating Devices Used in Roentgen Therapy

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