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	1.	Shielding a spectrum of workloads in diagnostic radiology. [electronic resource] by Simpkin, D J Producer: 19910829 In: Health physics vol. 61 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Radiation interactions and internal dosimetry in nuclear medicine. [electronic resource] by Simpkin, D J Producer: 19990511 In: Radiographics : a review publication of the Radiological Society of North America, Inc vol. 19 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	The Wisconsin kVp test cassette with orthochromatic film. [electronic resource] by Simpkin, D J Producer: 19820719 In: Medical physics vol. 9 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Scatter radiation intensities about mammography units. [electronic resource] by Simpkin, D J Producer: 19960301 In: Health physics vol. 70 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	Shielding requirements for constant-potential diagnostic x-ray beams determined by a Monte Carlo calculation. [electronic resource] by Simpkin, D J Producer: 19890403 In: Health physics vol. 56 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Shielding requirements for mammography. [electronic resource] by Simpkin, D J Producer: 19871002 In: Health physics vol. 53 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Evaluation of NCRP Report No. 49 assumptions on workloads and use factors in diagnostic radiology facilities. [electronic resource] by Simpkin, D J Producer: 19970519 In: Medical physics vol. 23 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	8.	Transmission of scatter radiation from computed tomography (CT) scanners determined by a Monte Carlo calculation. [electronic resource] by Simpkin, D J Producer: 19900419 In: Health physics vol. 58 Availability: No items available. Save to lists Add to cart (remove)
	9.	Fitting parameters for medical diagnostic x-ray transmission data. [electronic resource] by Simpkin, D J Producer: 19880418 In: Health physics vol. 54 Availability: No items available. Save to lists Add to cart (remove)
	10.	The effect of counting system deadtime on thyroid uptake measurements. [electronic resource] by Simpkin, D J Producer: 19840821 In: Medical physics vol. 11 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	11.	Radiation shielding of multiple x-ray sources in diagnostic radiology. [electronic resource] by Simpkin, D J Producer: 19860317 In: Health physics vol. 50 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	12.	Photon transmission of monoenergetic broad beams through gypsum wallboard. [electronic resource] by Simpkin, D J Producer: 19880609 In: Health physics vol. 54 Availability: No items available. Save to lists Add to cart (remove)
	13.	A general solution to the shielding of medical x and gamma rays by the NCRP Report No. 49 methods. [electronic resource] by Simpkin, D J Producer: 19870522 In: Health physics vol. 52 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	14.	Transmission data for shielding diagnostic x-ray facilities. [electronic resource] by Simpkin, D J Producer: 19950531 In: Health physics vol. 68 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	15.	Primary shielding barriers for diagnostic x-ray facilities: a new model. [electronic resource] by Dixon, R L Simpkin, D J Producer: 19980211 In: Health physics vol. 74 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	16.	EGS4 Monte Carlo determination of the beta dose kernel in water. [electronic resource] by Simpkin, D J Mackie, T R Producer: 19900607 In: Medical physics vol. 17 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	17.	Secondary shielding barriers for diagnostic x-ray facilities: scatter and leakage revisited. [electronic resource] by Simpkin, D J Dixon, R L Producer: 19980311 In: Health physics vol. 74 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	18.	The spatial and energy dependence of bremsstrahlung production about beta point sources in H2O. [electronic resource] by Simpkin, D J Cullom, S J Mackie, T R Producer: 19920731 In: Medical physics vol. 19 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	19.	Radiation protection standards: their evolution from science to philosophy. [electronic resource] by Dixon, R L Gray, Joel E Archer, B R Simpkin, D J Producer: 20060307 In: Radiation protection dosimetry vol. 115 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)